Prepare for and practice interview questions from Umbra.

Umbra Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Umbra Interview Guides

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

A/B Testing & Experimentation

<h3>Job Description</h3><div>Job Description<div>Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and ambitious: redefine space—for people, systems, and missions in every domain. Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms).Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. About the TeamSpace Systems – The ComponentsSpace Systems is where Umbra turns hardware and software designs into on-orbit realities; developing, implementing and iterating mission-ready core technology, while simultaneously advancing the next generation of our own satellite constellation. Space Systems is vertically integrated across the satellite architecture, thus the team designs, builds, and tests an array of critical components and subsystems, including power systems, communications, control systems, deployment hardware, avionics, and payloads, as well as the flight software, firmware and digital design solutions to support the entire hardware stack. Our focus is on first principles engineering, and our mandate is simple: it has to work when it counts. Every bolt, board, and binary is proven on our own SAR constellation, ensuring flight-proven reliability where failure is not an option. If you want to work on cutting edge space technology while maintaining the highest standard for innovation and mission ready performance, you belong here at Umbra.About the JobWe are looking for an experienced Engineering Manager to join the Space Systems Business Group, where you will provide leadership and guidance to both personnel and programs while managing Umbra's highly skilled Systems Engineering and Test teams. This role reports directly to the Vice President of Space Systems and involves overseeing a team responsible for designing, testing and supporting operations of cutting-edge satellite technology. As the Engineering Manager, you will have the opportunity to collaborate with hardware, software, and product-focused teams, as well as senior leadership, to drive the development of innovative technologies and support the professional growth of a talented group of engineers. This position is based on-site in our Santa Barbara, CA office.Key Responsibilities<ul><li>Lead personnel and oversee programmatic initiatives for the Systems Engineering and Test teams within the Space Systems Business Group.</li><li>Support the professional growth and career development of spacecraft systems engineers, test automation engineers and software test engineers, incorporating feedback from technical leadership.</li><li>Drive innovation and implement process improvements to Umbra's Systems Engineering practices and Test Infrastructure to increase efficiency and effectiveness.</li><li>Work closely with project, product, and technical leads to understand project scope, ensuring team members execute tasks with high quality and efficiency.</li><li>Manage team members in areas such as workload, task assignments, support, development, and conflict resolution.</li><li>Hold regular one-on-one meetings with team members and conduct quarterly performance evaluations.</li><li>Ensure the team adheres to legal, security, and company policy requirements.</li><li>Represent the team's needs and capacity in technical meetings, collaborating with subject matter experts to ensure well-informed solutions.</li><li>Work directly with the Operating Manager of Space Systems to coordinate and report on departmental efforts.</li><li>Partner with various stakeholders for headcount planning and recruitment of new personnel.</li><li>Apply agile methodologies to support sprint planning, track progress, and manage individual performance.</li><li>Perform other professional duties as assigned.</li></ul>RequirementsRequired Qualifications<ul><li>8+ years of professional experience in aerospace engineering or a related field, with at least 5 years of experience in personnel management.</li><li>5+ years of experience in systems engineering and test infrastructure.</li><li>3+ years of experience in project management.</li><li>Proficiency in traditional project management practices and tools, such as critical path analysis, resource loading, and MS Project.</li><li>Experience with agile project management methodologies and tools, such as Scrum, SAFe, and Jira.</li><li>Proven ability to build and support high-performing engineering teams.</li><li>Strong communication, organizational, and interpersonal skills.</li><li>Ability to thrive in a fast-paced, collaborative, and dynamic environment.</li></ul>Desired Qualifications<ul><li>10+ years of experience in personnel management.</li><li>10+ years of experience in systems engineering and test infrastructure within the aerospace engineering industry.</li><li>Demonstrated expertise in applying traditional and agile management methodologies.</li><li>Degree in engineering or a related STEM field.</li><li>Certifications in PMP (Project Management Professional), CAPM (Certified Associate in Project Management), and/or CSM (Certified Scrum Master).</li></ul>Benefits<ul><li>Flexible Time Off, Sick, Family & Medical Leave</li></ul><ul><li>Medical, Dental, Vision, Life, LTD, STD (employer funded)</li><li>Vol Life, Critical Illness, Accidental, Hospital Indemnity, Pet Insurance (employee funded)</li><li>401k with 3% non-elective company contribution</li><li>Stock Options</li><li>Free Parking </li><li>Free lunch in office daily</li></ul>Umbra is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law.Employment Eligibility VerificationIn compliance with federal laws, all hired persons will be required to verify their identity and eligibility to work in the United States by completing the required Employment Eligibility Verification Form (I-9 Form) upon hire.ITAR/EAR RequirementsThis position may include access to technology and/or data that is subject to U.S. export controls pursuant to ITAR and EAR. To comply with federal export controls, all persons hired must be a U.S. citizen, U.S. national, U.S. lawful permanent resident, refugee or asylee as defined by 8 U.S.C. § 1324b(a)(3), or must otherwise be eligible to obtain the required authorizations from the U.S. Department of State and/or U.S. Department of Commerce as applicable. Pay Transparency This job posting may cover multiple career levels. To ensure greater transparency, we provide base salary ranges for all roles, regardless of location. Our standard pay ranges are based on the role’s function and level, benchmarked against similar growth-stage companies. Compensation may vary based on geographical location, as certain regions may have different cost-of-living factors. The final offer will also be influenced by the candidate's skills, responsibilities, and relevant experience.Compensation RangeThe Compensation Range for this role is $180,000 - $215,000 DOE.</div></div>

<h3>Job Description</h3><div>Job Description<div>Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and ambitious: redefine space—for people, systems, and missions in every domain. Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms). Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. About the TeamSpace Systems – The Components Space Systems is where Umbra turns hardware and software designs into on-orbit realities; developing, implementing and iterating mission-ready core technology, while simultaneously advancing the next generation of our own satellite constellation. Space Systems is vertically integrated across the satellite architecture, thus the team designs, builds, and tests an array of critical components and subsystems, including power systems, communications, control systems, deployment hardware, avionics, and payloads, as well as the flight software, firmware and digital design solutions to support the entire hardware stack. Our focus is on first principles engineering, and our mandate is simple: it has to work when it counts. Every bolt, board, and binary is proven on our own SAR constellation, ensuring flight-proven reliability where failure is not an option. If you want to work on cutting-edge space technology that’s redefining what’s possible in space platforms, you belong here at Umbra. About the JobWe are seeking an experienced Flight Software Engineer to play a key role in delivering embedded flight software for Umbra missions. You will be responsible for developing requirements, designing software architecture, writing code, and overseeing system integration and testing. You will also provide guidance in software design, code development, peer reviews, documentation, and integration with flight hardware, including unit testing. The ideal candidate is a solution-driven problem solver, an exceptional communicator, and possesses a strong systems-thinking mindset to drive innovation in spacecraft software development.Our aim is to hire this position to work in either our Santa Barbara/Goleta, CA office, Arlington, VA office, or Reston, VA office (coming soon).Key Responsibilities<ul><li>Collaborate with a cross-disciplinary engineering team to design, develop, and maintain reliable, fault-tolerant flight and payload software.</li><li>Architect and implement software solutions to meet high-level system requirements while managing interfaces with multiple spacecraft subsystems and ground systems.</li><li>Create and maintain detailed documentation for software operation and interfaces with other system components.</li><li>Develop and test command and control software for spacecraft flight payloads and peripheral electronics.</li><li>Contribute to and lead test campaigns, including unit testing and automated tests at both subsystem and system levels.</li><li>Present high level technical concepts simply and clearly to non-technical audiences.</li><li>Take on additional professional duties as assigned.</li></ul>RequirementsRequired Qualifications<ul><li>Associate's degree in Computer Science, Computer Engineering, or a related field.</li><li>3+ years of proven experience in architecting and developing high-reliability software with Rust or Modern C/C++.</li><li>3+ years of embedded software development with Rust or Modern C/C++.</li><li>2+ years developing concurrent code with asynchronous Rust.</li><li>Proficient working within Linux, RTOS, or bare-metal environments.</li><li>Experience leading software development processes, including version control, bug tracking, and design documentation.</li><li>Experience building and maintaining Continuous Integration (CI) pipelines, automated testing and build/release processes, and static/dynamic analysis tools.</li><li>Comfortable working in a fast-paced, highly communicative and dynamic development environment.</li><li>Comfortable with travel up to 10%. </li></ul>Desired Qualifications<ul><li>Advanced degree in Computer Science, Computer Engineering, or related field, with 10+ years of experience.</li><li>7+ years of proven experience in architecting and developing high-reliability software with Rust or Modern C/C++.</li><li>3+ years with space system development, including space and ground segments.</li><li>3+ years with software used in autonomous, fault-critical systems.</li><li>Hands-on experience with kernel development using Yocto.</li><li>Strong understanding of processor architecture, with the ability to optimize code for performance and memory efficiency.</li><li>Experience programming on embedded ARM cores supporting SoC architectures in Linux or bare-metal environments.</li><li>Familiarity with Python programming.</li><li>Knowledge of dynamics and control systems.</li><li>Knowledge of hardware interfaces such as Ethernet, SPI, I2C, UART, and PCIe.</li><li>Background in developing, deploying, and maintaining software product lines.</li></ul>Benefits<ul><li>Flexible Time Off, Sick, Family & Medical Leave</li></ul><ul><li>Medical, Dental, Vision, Life, LTD, STD (employer funded)</li><li>Vol Life, Critical Illness, Accidental, Hospital Indemnity, Pet Insurance (employee funded)</li><li>401k with 3% non-elective company contribution</li><li>Stock Options</li><li>Free Parking</li><li>Free lunch daily in office</li></ul>Umbra is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law.Employment Eligibility VerificationIn compliance with federal laws, all hired persons will be required to verify their identity and eligibility to work in the United States by completing the required Employment Eligibility Verification Form (I-9 Form) upon hire.ITAR/EAR RequirementsThis position may include access to technology and/or data that is subject to U.S. export controls pursuant to ITAR and EAR. To comply with federal export controls, all persons hired must be a U.S. citizen, U.S. national, U.S. lawful permanent resident, refugee or asylee as defined by 8 U.S.C. § 1324b(a)(3), or must otherwise be eligible to obtain the required authorizations from the U.S. Department of State and/or U.S. Department of Commerce as applicable. Pay Transparency This job posting may cover multiple career levels. To ensure greater transparency, we provide base salary ranges for all roles, regardless of location. Our standard pay ranges are based on the role’s function and level, benchmarked against similar growth-stage companies. Compensation may vary based on geographical location, as certain regions may have different cost-of-living factors. The final offer will also be influenced by the candidate's skills, responsibilities, and relevant experience.Compensation RangeThe Compensation Range for this role is $140,000 - $170,000 DOE.</div></div>

<h3>Job Description</h3><div>Job Description<div>Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and ambitious: redefine space—for people, systems, and missions in every domain. Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms).Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. About the TeamSpace Systems – The ComponentsSpace Systems is where Umbra turns hardware and software designs into on-orbit realities; developing, implementing and iterating mission-ready core technology, while simultaneously advancing the next generation of our own satellite constellation. Space Systems is vertically integrated across the satellite architecture, thus the team designs, builds, and tests an array of critical components and subsystems, including power systems, communications, control systems, deployment hardware, avionics, and payloads, as well as the flight software, firmware and digital design solutions to support the entire hardware stack. Our focus is on first principles engineering, and our mandate is simple: it has to work when it counts. Every bolt, board, and binary is proven on our own SAR constellation, ensuring flight-proven reliability where failure is not an option. If you want to work on cutting edge space technology while maintaining the highest standard for innovation and mission ready performance, you belong here at Umbra.About the JobWe are on the lookout for a highly skilled and experienced Flight Software Engineering Manager who will be instrumental in the development and delivery of embedded flight software tailored for Umbra missions. This pivotal role encompasses a broad spectrum of responsibilities, where you will not only oversee day-to-day people management but also provide robust technical leadership to guide your team towards success. Your expertise will be crucial in shaping the software architecture, driving code development, and ensuring thorough system integration. Additionally, you will be responsible for producing comprehensive documentation and conducting rigorous testing protocols, all of which are vital to guarantee the successful deployment of mission-critical software that meets the high standards required for our ambitious missions.This position is located on-site in our Santa Barbara, CA office.Key Responsibilities<ul><li>40% people management of a team of 3-4 software engineers, and 60% "hands on" technical leadership of that team to design, develop, and maintain reliable, fault-tolerant flight software.</li><li>Implement software solutions that meet system requirements, while managing interfaces between multiple spacecraft subsystems and ground systems.</li><li>Develop command and control software for spacecraft flight operations, payloads, and peripheral electronics.</li><li>Contribute to and lead test campaigns, including unit testing and automated tests at both subsystem and system levels.</li><li>Create and maintain detailed documentation for software operations and interfaces with hardware/software products.</li><li>Perform other professional duties as assigned.</li></ul>RequirementsRequired Qualifications<ul><li>Bachelor's degree in Computer Science, Computer Engineering, or a related field.</li><li>5+ years of proven experience in high-reliability software development.</li><li>2+ years of people management of a team of software engineers, including capacity planning, hiring, feedback, coaching, mentoring, performance reviews, and performance management.</li><li>2+ years of technical leadership of a team of software engineers, including requirements analysis, system design, and test plans.</li><li>Expertise in architecting and developing concurrent and asynchronous code in Rust or Modern C++.</li><li>Strong background in embedded software development, including experience with Rust or C/C++.</li><li>Deep understanding of processor architecture and optimizing code for performance and memory efficiency.</li><li>Experience with software development tools and processes, including Agile methodologies, source control, bug tracking, and design documentation.</li><li>Comfortable working in a fast-paced and dynamic development environment. </li></ul>Desired Qualifications<ul><li>Advanced degree in Computer Science, Computer Engineering, or a related field.</li><li>8+ years of relevant experience.</li><li>2+ years of experience working with flight software or robotics.</li><li>Experience developing software for autonomous, fault-critical systems.</li><li>Expertise with Python programming, Docker, and CI/CD pipelines.</li><li>Proficient in programming embedded ARM cores supporting SoC architectures, and working within Linux, RTOS, or bare-metal environments.</li><li>Knowledge of Ethernet, SPI, I2C, UART, and PCIe interfaces.</li><li>Experience with developing, deploying, and maintaining software product lines.</li></ul>Benefits<ul><li>Flexible Time Off, Sick, Family & Medical Leave</li><li>Medical, Dental, Vision, Life, LTD, STD (employer funded)</li><li>Vol Life, Critical Illness, Accidental, Hospital Indemnity, Pet Insurance (employee funded)</li><li>401k with 3% non-elective company contribution</li><li>Stock Options</li><li>Free Parking</li><li>Free lunch in office daily</li></ul>Umbra is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law.Employment Eligibility VerificationIn compliance with federal laws, all hired persons will be required to verify their identity and eligibility to work in the United States by completing the required Employment Eligibility Verification Form (I-9 Form) upon hire.ITAR/EAR RequirementsThis position may include access to technology and/or data that is subject to U.S. export controls pursuant to ITAR and EAR. To comply with federal export controls, all persons hired must be a U.S. citizen, U.S. national, U.S. lawful permanent resident, refugee or asylee as defined by 8 U.S.C. § 1324b(a)(3), or must otherwise be eligible to obtain the required authorizations from the U.S. Department of State and/or U.S. Department of Commerce as applicable. Pay Transparency This job posting may cover multiple career levels. To ensure greater transparency, we provide base salary ranges for all roles, regardless of location. Our standard pay ranges are based on the role’s function and level, benchmarked against similar growth-stage companies. Compensation may vary based on geographical location, as certain regions may have different cost-of-living factors. The final offer will also be influenced by the candidate's skills, responsibilities, and relevant experience.Compensation RangeThe Compensation Range for this role is $170,000 - $210,000 DOE.</div></div>

<h3>Job Description</h3><div>Job Description<div>Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and ambitious: redefine space—for people, systems, and missions in every domain. Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms).Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. About the TeamSpace Systems – The Components Space Systems is where Umbra turns hardware and software designs into on-orbit realities; developing, implementing and iterating mission-ready core technology, while simultaneously advancing the next generation of our own satellite constellation. Space Systems is vertically integrated across the satellite architecture, thus the team designs, builds, and tests an array of critical components and subsystems, including power systems, communications, control systems, deployment hardware, avionics, and payloads, as well as the flight software, firmware and digital design solutions to support the entire hardware stack. Our focus is on first principles engineering, and our mandate is simple: it has to work when it counts. Every bolt, board, and binary is proven on our own SAR constellation, ensuring flight-proven reliability where failure is not an option. If you want to work on cutting edge space technology while maintaining the highest standard for innovation and mission ready performance, you belong here at Umbra.About the JobWe are on the lookout for a highly skilled and experienced Digital Design Engineering Manager who will be instrumental in the development and delivery of embedded flight software tailored for Umbra missions. This pivotal role encompasses a broad spectrum of responsibilities, where you will not only oversee day-to-day people management but also provide robust technical leadership to guide your team towards success. You will be at the forefront of creating cutting-edge HDL-based digital designs for next-generation space radar systems. In this role, you'll work closely alongside our software and electrical engineering teams to innovate, analyze, manufacture, and rigorously test microwave subsystems.This position is based on-site in our Santa Barbara, CA office.Key Responsibilities<ul><li>40% people management of a team of 4-5 software engineers, and 60% "hands on" technical leadership of that team to develop FPGA-based digital designs for radar, electronic warfare, and communications.</li><li>Work with electrical and systems engineers to integrate Xilinx SoC based hardware with high-speed data converters and associated microwave transmitter and receiver chains. </li><li>Continuously collaborate with the payload engineering team to address mechanical, thermal and power subsystems and interfaces. </li><li>Rapidly develop prototypes and iteratively improve hardware and firmware. </li><li>Prepare engineering documentation, reports, and test plans. </li><li>Perform other professional duties as assigned.</li></ul>RequirementsRequired Qualifications<ul><li>Bachelor’s of Electrical Engineering or Computer Engineering or equivalent. </li><li>Knowledge of foundational electrical engineering, computer architecture and digital design concepts. </li><li>2+ years of people management of a team of digital design engineers, including capacity planning, hiring, feedback, coaching, mentoring, performance reviews, and performance management.</li><li>5+ years of proven, relevant experience in digital design with FPGA and SoC devices. </li><li>Development experience with Xilinx devices and design suite, such as Vivado, SDK and Vitis. </li><li>Expertise in VHDL and/or Verilog. </li><li>Experience developing MCU and SoC software in Rust or C/C++. </li><li>Working knowledge of modern FPGA architectures and external interfaces, including high speed converters, DDR RAM, and Solid-State NAND and NOR based storage. </li><li>Familiarity with standard physical layers for digital communication (UART, SPI, LVDS). </li><li>Comfortable working in a dynamic and fast-paced development environment. </li></ul>Desired Qualifications<ul><li>Advanced degree in Electrical Engineering or Computer Engineering or equivalent.</li><li>10+ years of proven, relevant experience in digital design with FPGA and SoC devices. </li><li>Experience with high-speed data transfer and bandwidth management.</li><li>Knowledge of digital communication systems and modulations (QPSK, 8-PSK). </li><li>Experience developing FPGA based hardware for spacecraft systems. </li><li>Experience with parallelizing DSP algorithms. </li><li>Knowledge of Python and SystemVerilog. </li><li>Experience with interfacing with vendors and customers as the technical representative.</li><li>TS/SCI security clearance, read-in within the past two years, or willingness to acquire one.</li></ul>Benefits<ul><li>Flexible Time Off, Sick, Family & Medical Leave</li><li>Medical, Dental, Vision, Life, LTD, STD (employer funded)</li><li>Vol Life, Critical Illness, Accidental, Hospital Indemnity, Pet Insurance (employee funded)</li><li>401k with 3% non-elective company contribution</li><li>Stock Options</li><li>Free Parking</li><li>Free lunch daily in office</li></ul>Umbra is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law.Employment Eligibility VerificationIn compliance with federal laws, all hired persons will be required to verify their identity and eligibility to work in the United States by completing the required Employment Eligibility Verification Form (I-9 Form) upon hire.ITAR/EAR RequirementsThis position may include access to technology and/or data that is subject to U.S. export controls pursuant to ITAR and EAR. To comply with federal export controls, all persons hired must be a U.S. citizen, U.S. national, U.S. lawful permanent resident, refugee or asylee as defined by 8 U.S.C. § 1324b(a)(3), or must otherwise be eligible to obtain the required authorizations from the U.S. Department of State and/or U.S. Department of Commerce as applicable. Pay Transparency This job posting may cover multiple career levels. To ensure greater transparency, we provide base salary ranges for all roles, regardless of location. Our standard pay ranges are based on the role’s function and level, benchmarked against similar growth-stage companies. Compensation may vary based on geographical location, as certain regions may have different cost-of-living factors. The final offer will also be influenced by the candidate's skills, responsibilities, and relevant experience.Compensation RangeThe Compensation Range for this role is $170,000 - $210,000 DOE.</div></div>

<h3>Job Description</h3><div>Job Description<div>Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and ambitious: redefine space—for people, systems, and missions in every domain. Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms).Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. About the Team Remote Sensing – The DataRemote Sensing is where Umbra got its start, and our agile Synthetic Aperture Radar (SAR) constellation remains the most capable on the market. We transform satellite data into real-world, actionable insights that strengthen U.S. national security and intelligence, support disaster response, and advance scientific discovery. Our team delivers data at scale with unmatched quality, persistence, and the speed and responsiveness our partners demand.If you want to work on cutting-edge space technology that’s redefining what’s possible in remote sensing, you belong here at Umbra.About the JobWe are seeking a hybrid Scheduling Subject Matter Expert & Software Engineer to join our Ground Software Scheduling Team. This role is ideal for someone who combines deep knowledge of mission planning and scheduling with strong software engineering skills and a bias toward action. You will help keep the “north star” in focus for our scheduling system, ensuring our engineering team builds the right things in the right way. At the same time, you’ll contribute directly to the codebase, helping us hit deadlines and deliver scalable, automated scheduling capabilities that power Umbra’s growing satellite constellation. Our aim is to hire this position to work in either our Santa Barbara/Goleta, CA office or Arlington, VA office. However, we are open to considering remote candidates who are an exceptional fit.Key Responsibilities<ul><li>Act as the domain authority for spacecraft and mission scheduling, ensuring the engineering team captures essential operational realities and industry best practices.</li><li>Contribute directly to the development of scheduling software by designing, writing, reviewing, and maintaining production code.</li><li>Translate scheduling concepts, constraints, and algorithms beyond requirement docs into working, reliable systems.</li><li>Provide forward-looking guidance to anticipate operational challenges and scale our scheduler for more missions and higher automation.</li><li>Evaluate and help adopt modern scheduling methodologies, tools, and frameworks for satellite operations.</li><li>Participate in architectural reviews and long-term strategy discussions, balancing vision with delivery deadlines.</li><li>Bring a startup/product mindset, pushing through analysis paralysis and helping the team make pragmatic tradeoffs that keep work moving.</li></ul>RequirementsRequired Qualifications<ul><li>Bachelor’s degree or equivalent experience in Aerospace Engineering, Systems Engineering, Computer Science, or a related field.</li><li>8+ years of total relevant professional experience; with at least 4+ years in mission planning, scheduling, or other complex resource allocation domains (e.g., aerospace, defense, logistics, or large-scale operations).</li><li>Hands-on software engineering skills, including experience writing production-quality code.</li><li>Expertise in scheduling algorithms, resource allocation, and constraint- or heuristic-based planning.</li><li>Ability to bridge domain expertise and engineering execution, aligning theory with implementation.</li><li>Strong communication skills to clearly articulate scheduling needs and tradeoffs to diverse stakeholders.</li></ul>Desired Qualifications<ul><li>Direct experience in scheduling spacecraft (individual or constellation).</li><li>Experience with Python, FastAPI, and event-driven microservices (Kafka preferred).</li><li>Familiarity with general web development practices (REST APIs, authentication, cloud-hosted systems, database-backed applications).</li><li>Familiarity with optimization techniques in both the software and scheduling domains.</li><li>Comfort with DevOps, CI/CD, Data Engineering, and modern software practices.</li><li>Strong analytical skills and the ability to anticipate and design for evolving operational requirements.</li><li>Current security clearance, or the ability/willingness to obtain one.</li></ul>Benefits<ul><li>Flexible Time Off, Sick, Family & Medical Leave</li><li>Medical, Dental, Vision, Life, LTD, STD (employer funded)</li><li>Vol Life, Critical Illness, Accidental, Hospital Indemnity, Pet Insurance (employee funded)</li><li>401k with 3% non-elective company contribution</li><li>Stock Options</li><li>Free Parking (on-site only)</li><li>Free lunch in office daily (on-site only)</li></ul>Umbra is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law.Employment Eligibility VerificationIn compliance with federal laws, all hired persons will be required to verify their identity and eligibility to work in the United States by completing the required Employment Eligibility Verification Form (I-9 Form) upon hire.ITAR/EAR RequirementsThis position may include access to technology and/or data that is subject to U.S. export controls pursuant to ITAR and EAR. To comply with federal export controls, all persons hired must be a U.S. citizen, U.S. national, U.S. lawful permanent resident, refugee or asylee as defined by 8 U.S.C. § 1324b(a)(3), or must otherwise be eligible to obtain the required authorizations from the U.S. Department of State and/or U.S. Department of Commerce as applicable. Pay Transparency This job posting may cover multiple career levels. To ensure greater transparency, we provide base salary ranges for all roles, regardless of location. Our standard pay ranges are based on the role’s function and level, benchmarked against similar growth-stage companies. Compensation may vary based on geographical location, as certain regions may have different cost-of-living factors. The final offer will also be influenced by the candidate's skills, responsibilities, and relevant experience.Compensation RangeThe Compensation Range for this role is $170,000 - $200,000 DOE.</div></div>

<h3>Job Description</h3><div>Job Description<div>Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and ambitious: redefine space—for people, systems, and missions in every domain. Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms). Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. About the TeamSpace Systems – The Components Space Systems is where Umbra turns hardware and software designs into on-orbit realities; developing, implementing and iterating mission-ready core technology, while simultaneously advancing the next generation of our own satellite constellation. Space Systems is vertically integrated across the satellite architecture, thus the team designs, builds, and tests an array of critical components and subsystems, including power systems, communications, control systems, deployment hardware, avionics, and payloads, as well as the flight software, firmware and digital design solutions to support the entire hardware stack. Our focus is on first principles engineering, and our mandate is simple: it has to work when it counts. Every bolt, board, and binary is proven on our own SAR constellation, ensuring flight-proven reliability where failure is not an option. If you want to work on cutting-edge space technology that’s redefining what’s possible in space platforms, you belong here at Umbra. About the JobWe are seeking an experienced Senior Software Engineer, Flight Software (Rust) to play a key role in delivering embedded flight software for Umbra missions. You will be responsible for developing requirements, designing software architecture, writing code, and overseeing system integration and testing. You will also provide expert guidance in software design, code development, peer reviews, documentation, and integration with flight hardware, including unit testing. The ideal candidate is a solution-driven problem solver, an exceptional communicator, and possesses a strong systems-thinking mindset to drive innovation in spacecraft software development.Our aim is to hire this position to work in either our Santa Barbara/Goleta, CA office or Arlington, VA office.Key Responsibilities<ul><li>Collaborate with a cross-disciplinary engineering team to design, develop, and maintain reliable, fault-tolerant flight and payload software.</li><li>Architect and implement software solutions to meet high-level system requirements while managing interfaces with multiple spacecraft subsystems and ground systems.</li><li>Create and maintain detailed documentation for software operation and interfaces with other system components.</li><li>Develop and test command and control software for spacecraft flight payloads and peripheral electronics.</li><li>Contribute to and lead test campaigns, including unit testing and automated tests at both subsystem and system levels.</li><li>Present high level technical concepts simply and clearly to non-technical audiences.</li><li>Take on additional professional duties as assigned.</li></ul>RequirementsRequired Qualifications<ul><li>Associate's degree in Computer Science, Computer Engineering, or a related field.</li><li>5+ years of proven experience in architecting and developing high-reliability software with Rust or Modern C/C++.</li><li>3+ years of embedded software development with Rust or Modern C/C++.</li><li>2+ years developing concurrent code with asynchronous Rust.</li><li>Proficient working within Linux, RTOS, or bare-metal environments.</li><li>Experience leading software development processes, including version control, bug tracking, and design documentation.</li><li>Experience building and maintaining Continuous Integration (CI) pipelines, automated testing and build/release processes, and static/dynamic analysis tools.</li><li>Comfortable working in a fast-paced, highly communicative and dynamic development environment.</li><li>Comfortable with travel up to 10%. </li></ul>Desired Qualifications<ul><li>Advanced degree in Computer Science, Computer Engineering, or related field, with 10+ years of experience.</li><li>10+ years of proven experience in architecting and developing high-reliability software with Rust or Modern C/C++.</li><li>3+ years with space system development, including space and ground segments.</li><li>3+ years with software used in autonomous, fault-critical systems.</li><li>Hands-on experience with kernel development using Yocto.</li><li>Strong understanding of processor architecture, with the ability to optimize code for performance and memory efficiency.</li><li>Experience programming on embedded ARM cores supporting SoC architectures in Linux or bare-metal environments.</li><li>Familiarity with Python programming.</li><li>Knowledge of dynamics and control systems.</li><li>Knowledge of hardware interfaces such as Ethernet, SPI, I2C, UART, and PCIe.</li><li>Background in developing, deploying, and maintaining software product lines.</li></ul>Benefits<ul><li>Flexible Time Off, Sick, Family & Medical Leave</li></ul><ul><li>Medical, Dental, Vision, Life, LTD, STD (employer funded)</li><li>Vol Life, Critical Illness, Accidental, Hospital Indemnity, Pet Insurance (employee funded)</li><li>401k with 3% non-elective company contribution</li><li>Stock Options</li><li>Free Parking</li><li>Free lunch daily in office</li></ul>Umbra is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law.Employment Eligibility VerificationIn compliance with federal laws, all hired persons will be required to verify their identity and eligibility to work in the United States by completing the required Employment Eligibility Verification Form (I-9 Form) upon hire.ITAR/EAR RequirementsThis position may include access to technology and/or data that is subject to U.S. export controls pursuant to ITAR and EAR. To comply with federal export controls, all persons hired must be a U.S. citizen, U.S. national, U.S. lawful permanent resident, refugee or asylee as defined by 8 U.S.C. § 1324b(a)(3), or must otherwise be eligible to obtain the required authorizations from the U.S. Department of State and/or U.S. Department of Commerce as applicable. Pay Transparency This job posting may cover multiple career levels. To ensure greater transparency, we provide base salary ranges for all roles, regardless of location. Our standard pay ranges are based on the role’s function and level, benchmarked against similar growth-stage companies. Compensation may vary based on geographical location, as certain regions may have different cost-of-living factors. The final offer will also be influenced by the candidate's skills, responsibilities, and relevant experience.Compensation RangeThe Compensation Range for this role is $160,000 - $190,000 DOE.</div></div>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

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