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Axon Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Axon 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

Axon Salaries by Position

Join Axon and be a Force for Good. At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other. Life at Axon is fast-paced, challenging and meaningful. Here, you’ll take ownership and drive real change. Constantly grow as you work hard for a mission that matters at a company where you matter. Your Impact Axon’s Real Time Operations (RTO) division builds situational awareness software that helps emergency responders manage life-and-death incidents. You will lead the design and scale-out of the cloud control plane that provisions, secures, and orchestrates Axon’s global IoT device fleets. The systems you build will ingest and act on real-time signals at planet scale, with tight SLOs for command/response and device health. Your work will directly improve response times, reduce cognitive load for dispatch and command center operators, and increase responder safety. What You’ll Do <ul><li>Own control-plane architecture for multi-tenant, planet-scale IoT fleets: device provisioning and lifecycle, device identity & PKI, configuration/state management (twin/shadow), command & control, policy/RBAC enforcement, OTA updates and rollout strategies, and authoritative device state.</li><li>Drive reliability, safety, and security-by-design: zero-trust defaults, mutual TLS, certificate rotation at scale, least-privilege key management (HSM/KMS), robust secrets hygiene, threat modeling, and defense-in-depth for multi-tenancy.</li><li>Lead cross-org technical strategy: set engineering standards (APIs, versioning, deprecation, rollout, testing), create long-range roadmaps, and mentor/level-up senior engineers across cloud and device teams.</li><li>Partner with device teams on transport and protocol choices, schema and API contracts, edge–cloud sync models, staged rollouts, failure injection, and field-safe rollback.</li><li>Establish end-to-end observability (metrics, tracing, structured/audit logs), actionable dashboards, incident response runbooks, and capacity planning with empirical load testing and cost guardrails. </li></ul>Minimum Qualifications <ul><li>10+ years building and operating distributed systems at scale; proven track record of owning critical paths and SLOs.</li><li>Deep expertise in control planes, service discovery, orchestration, partitioning/placement, and consistency models (CAP tradeoffs, CRDTs, leader/follower, quorum).</li><li>Strong coding in Go (also acceptable: Java/Rust); design-first mindset, profiling and performance tuning (allocations, tail latency, lock contention).</li><li>Cloud-native foundations: Kubernetes, containers, service mesh (Istio/Envoy), gRPC/HTTP/2, backpressure and circuit-breaking patterns.</li><li>Streaming/eventing: Kafka/NATS/Pub-Sub, schema evolution (Protobuf/Avro), idempotency keys, and exactly-once vs at-least-once tradeoffs.</li><li>Security: mTLS, OAuth/OIDC, JWT, x.509, HSM/KMS, structured threat modeling and mitigation. </li></ul>Preferred Qualifications <ul><li>IoT protocols & fleet ops: MQTT, WebSockets, device twin/shadow patterns and FIDO Device Onboarding (FDO).</li><li>Hardware root of trust: TPM / TPM 2.0 fundamentals—measured/verified boot device identity & remote attestation, key sealing/unsealing—and integrating TPM-backed identity with cloud HSM/KMS.</li><li>Large-scale telemetry pipelines, time-series storage, adaptive sampling, backpressure, and edge–cloud synchronization.</li><li>Multi-region active/active, blue/green and canary for device fleets, ring-based or attribute-based rollout tooling with automatic pause/rollback.</li><li>Experience in regulated or safety-critical domains (e.g., public safety, medical, automotive), with audit and compliance rigor. </li></ul>Work Location: This role is based out of our [insert city] office and follows a hybrid schedule. We rely on in-person collaboration and ask that team members work onsite Tuesdays through Fridays, with the flexibility to work remotely on Mondays, unless there is an approved workplace accommodation. We believe that connection fuels innovation, and our in-office culture is designed to foster meaningful teamwork, mentorship, and shared success. Why Axon <ul><li>Mission you can see: Your work directly helps first responders move faster with clearer context, improving community safety.</li><li>Scale and complexity: Build a global, multi-region control plane for millions of devices with tight SLOs and strict security.</li><li>Growth: Influence technical strategy across cloud and device teams; mentor senior engineers; pursue Staff+ leadership paths.</li><li>Compensation & support: Competitive pay and equity, comprehensive benefits and generous leave.</li><li>Environment: “Own It“ culture that values engineering excellence, pragmatic safety-at-scale, and measurable outcomes. </li></ul>Ready to lead at planet scale? Apply to help us build the control plane that powers real-time operations for public safety worldwide. Benefits That Benefit You <ul><li>Competitive Base Salary</li><li>Annual Bonus and Restricted Stock Unit Eligibility</li><li>Comprehensive Pension Plan with Matching Contribution</li><li>30 days paid holiday in addition to UK public holidays</li><li>Enhanced Maternity and Paternity Leave for all employees</li><li>Private Health Insurance</li><li>Cash Plan including Dental, Optician and Therapeutic Treatment Plans</li><li>GymPass Subscription</li><li>Life assurance (x4 Annual Salary)</li><li>Group income Protection</li><li>Employee Assistance & Development Programs </li></ul>Benefits listed herein may vary depending on the nature of your employment and the location where you work. Don’t meet every single requirement? That's ok. At Axon, we Aim Far. We think big with a long-term view because we want to reinvent the world to be a safer, better place. We are also committed to building diverse teams that reflect the communities we serve. Studies have shown that women and people of color are less likely to apply to jobs unless they check every box in the job description. If you’re excited about this role and our mission to Protect Life but your experience doesn’t align perfectly with every qualification listed here, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Important Notes The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job description may change or be supplemented at any time in accordance with business needs and conditions. Some roles may also require legal eligibility to work in a firearms environment. We collect personal information from applicants to evaluate candidates for employment. You may request access, deletion, or exercise other CCPA rights at axongreenhousesupport@axon.com or via our <a>Axon Privacy Web Form</a>. For more information, please see the Your California Privacy Rights section of our <a>Applicant and Candidate Privacy Notice. </a>Axon’s mission is to Protect Life and is committed to the well-being and safety of its employees as well as Axon’s impact on the environment. All Axon employees must be aware of and committed to the appropriate environmental, health, and safety regulations, policies, and procedures. Axon employees are empowered to report safety concerns as they arise and activities potentially impacting the environment. We are an equal opportunity employer that promotes justice, advances equity, values diversity and fosters inclusion. We’re committed to hiring the best talent — regardless of race, creed, color, ancestry, religion, sex (including pregnancy), national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, genetic information, veteran status, or any other characteristic protected by applicable laws, regulations and ordinances — and empowering all of our employees so they can do their best work. If you have a disability or special need that requires assistance or accommodation during the application or the recruiting process, please email recruitingops@axon.com. Please note that this email address is for accommodation purposes only. Axon will not respond to inquiries for other purposes.

Join Axon and be a Force for Good. At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other. Life at Axon is fast-paced, challenging and meaningful. Here, you’ll take ownership and drive real change. Constantly grow as you work hard for a mission that matters at a company where you matter. Your Impact As a Senior Platform Engineer on Dedrone’s Infrastructure Services team, you will accelerate product development by building and maintaining the core infrastructure, tooling, and automation systems that engineering teams rely on. You will shape the CI/CD ecosystem, strengthen observability platforms, and deliver scalable, secure cloud infrastructure. This role enables deep technical ownership and provides significant opportunities to influence engineering standards, developer experience, and future platform architecture across the product teams. What You’ll Do Location: Onsite at our London, UK office 4 days a week Reports to: Engineering Manager, Infrastructure Services Direct Reports: none <ul><li>Own, design, and optimize CI/CD pipelines supporting Dedrone’s distributed, product ecosystem—reducing build times, deployment friction, and manual overhead.</li><li>Build, automate, and maintain AWS infrastructure using Infrastructure-as-Code (Terraform or AWS CDK), ensuring scalable, secure, and reusable cloud environments.</li><li>Maintain and evolve backend services owned by the team</li><li>Architect, optimize, and secure Docker images and container workflows; support orchestration environments (such as ECS, EKS, Kubernetes).</li><li>Strengthen and expand Dedrone’s observability stack— metrics, logging, tracing, and alerting—leveraging tools such as Grafana, Cloudwatch</li><li>Establish and promote engineering best practices across development standards, CI/CD patterns, infrastructure templates, and reusable tooling.</li><li>Partner closely with product engineering teams to understand bottlenecks, reduce toil, and increase overall developer velocity.</li><li>Contribute to security-focused improvements across the platform CI/CD, IAM, secrets management, and cloud resource hardening.</li><li>Collaborate with Axon platform, infrastructure, and security teams to align workflows and adopt shared best practices.</li><li>Deliver measurable improvements to system reliability, automation, and infrastructure scalability. </li></ul>What You Bring <ul><li>3+ years of relevant experience in cloud infrastructure, developer tooling, backend engineering, or platform/DevOps roles, with an emphasis on practical, hands-on expertise over formal education.</li><li>Proficiency with modern cloud and automation tooling, including CI/CD pipeline development, AWS services (EC2, ECS/EKS, S3, IAM, CloudWatch), Infrastructure-as-Code (Terraform or AWS CDK), and containerization using Docker and orchestration tools such as ECS, EKS, or Kubernetes.</li><li>Strong engineering fundamentals, including backend development experience (e.g., Java, Go, Python), as well as Linux, Bash, and scripting skills used for automation, debugging, and improving developer workflows.</li><li>Experience implementing observability practices—including metrics, logging, and tracing—and using insights to diagnose issues, improve reliability, and elevate developer experience across systems.</li><li>A collaborative approach grounded in Axon’s values—showing ownership, candor, customer success, the courage to boldly go, and the ambition to aim far and win right—supported by a track record of reducing toil, resolving bottlenecks, and strengthening the overall engineering ecosystem. </li></ul>Work Location This role is based out of our London, UK office and follows a hybrid schedule. We rely on in-person collaboration and ask that team members work onsite Tuesday through Friday, with flexibility to work remotely on Mondays unless there is an approved workplace accommodation. We believe that connection fuels innovation, and our in-office culture is designed to foster meaningful teamwork, mentorship, and shared success. Benefits That Benefit You <ul><li>Competitive base salary and RSUs</li><li>Comprehensive pension plan with matching contribution</li><li>Private health insurance & cash plans</li><li>30 days paid holiday + UK public holidays</li><li>Enhanced maternity/paternity leave</li><li>GymPass subscription</li><li>Life assurance & income protection</li><li>Career growth support and wellness resources </li></ul>Benefits listed herein may vary depending on the nature of your employment and the location where you work Don’t meet every single requirement? That's ok. At Axon, we Aim Far. We think big with a long-term view because we want to reinvent the world to be a safer, better place. We are also committed to building diverse teams that reflect the communities we serve. Studies have shown that women and people of color are less likely to apply to jobs unless they check every box in the job description. If you’re excited about this role and our mission to Protect Life but your experience doesn’t align perfectly with every qualification listed here, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Important Notes The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job description may change or be supplemented at any time in accordance with business needs and conditions. Some roles may also require legal eligibility to work in a firearms environment. We collect personal information from applicants to evaluate candidates for employment. You may request access, deletion, or exercise other CCPA rights at axongreenhousesupport@axon.com or via our <a>Axon Privacy Web Form</a>. For more information, please see the Your California Privacy Rights section of our <a>Applicant and Candidate Privacy Notice. </a>Axon’s mission is to Protect Life and is committed to the well-being and safety of its employees as well as Axon’s impact on the environment. All Axon employees must be aware of and committed to the appropriate environmental, health, and safety regulations, policies, and procedures. Axon employees are empowered to report safety concerns as they arise and activities potentially impacting the environment. We are an equal opportunity employer that promotes justice, advances equity, values diversity and fosters inclusion. We’re committed to hiring the best talent — regardless of race, creed, color, ancestry, religion, sex (including pregnancy), national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, genetic information, veteran status, or any other characteristic protected by applicable laws, regulations and ordinances — and empowering all of our employees so they can do their best work. If you have a disability or special need that requires assistance or accommodation during the application or the recruiting process, please email recruitingops@axon.com. Please note that this email address is for accommodation purposes only. Axon will not respond to inquiries for other purposes.

Join Axon and be a Force for Good. At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other. Life at Axon is fast-paced, challenging and meaningful. Here, you’ll take ownership and drive real change. Constantly grow as you work hard for a mission that matters at a company where you matter. Your Impact We are seeking multiple highly skilled and innovative Computer Vision and Machine Learning (CVML) Scientists to join our AI team as Tech Lead, focusing on turning CVML R&D ideas to product features in Cloud, Devices and Robotics. As a Tech Lead of our research and development efforts, you will play a crucial role in advancing the state-of-the-art in CVML technologies and bringing technology to our customers for our cloud, devices and robotics. You will collaborate with product managers, cross-functional teams to design, develop, and ship cutting-edge CVML algorithms and solutions that enable intelligent perception and understanding of visual data. What You'll Do Location: Remote from England or Hybrid from office in London, England. Reports To: Senior Director, Research Science <ul><li>Convert and Ship CVML R&D ideas to Axon Products.</li><li>Research and develop advanced MLLMs, GenAI, and Computer Vision techniques for cloud, devices and sensors from multimodal data sources.</li><li>Design and implement efficient and scalable MLLM models for inference and analysis of visual data.</li><li>Explore novel approaches to address challenges in object detection, recognition, tracking, segmentation, and scene understanding.</li><li>Optimize algorithms for performance, memory footprint, and energy efficiency to meet the requirements of resource-constrained devices.</li><li>Join force with MLEs or firmware or hardware engineers to leverage hardware accelerators and optimize algorithms for specific hardware architectures.</li><li>Evaluate the performance of MLLM models using real-world datasets and design experiments to validate their effectiveness.</li><li>Stay up-to-date with the latest research trends and advancements in computer vision, machine learning, and deep learning, MLLMs, GenAI and integrate relevant findings into our projects.</li><li>Contribute to patent disclosures, academic publications, and technical documentation to share insights and findings with the broader community.</li><li>Experience coach and mentor junior scientists. </li></ul>What You Bring <ul><li>PhD and with +8 year experience in Computer Science or a related field with a focus on MLLMs, computer vision, machine learning, or artificial intelligence.</li><li>Proven track record of research excellence in machine learning, computer vision, robotics perception, demonstrated through publications in top-tier conferences or journals.</li><li>Strong proficiency in programming languages such as Python, C/C++, experience with deep learning frameworks such as TensorFlow, PyTorch, or Keras and experience with ROS or robotic operational system.</li><li>Drive one or more phases of the ML development lifecycle: shape datasets, investigate modeling approaches and architectures, train/evaluate/tune models and implement the end-to-end training pipeline.</li><li>Leverage state-of-the-art research to deliver high quality models enabling multiple AI projects at scale.</li><li>Contribute back to the research community via academic publications, tech blogs, open-source code and contributing to internal/external AI challenges</li><li>Experience in developing computer vision algorithms for resource-constrained devices such as mobile phones, IoT devices, or embedded systems is highly desirable.</li><li>Excellent problem-solving skills, analytical thinking, and the ability to work independently as well as collaboratively in a team environment.</li><li>Strong communication skills and the ability to effectively present complex technical concepts to both technical and non-technical audiences. </li></ul>Benefits That Benefit You <ul><li>Competitive salary and 401k with employer match</li><li>Discretionary paid time off</li><li>Paid parental leave for all</li><li>Medical, Dental, Vision plans</li><li>Fitness Programs</li><li>Emotional & Mental Wellness support</li><li>Learning & Development programs</li><li>And yes, we have snacks in our offices </li></ul>Benefits listed herein may vary depending on the nature of your employment and the location where you work Don’t meet every single requirement? That's ok. At Axon, we Aim Far. We think big with a long-term view because we want to reinvent the world to be a safer, better place. We are also committed to building diverse teams that reflect the communities we serve. Studies have shown that women and people of color are less likely to apply to jobs unless they check every box in the job description. If you’re excited about this role and our mission to Protect Life but your experience doesn’t align perfectly with every qualification listed here, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Important Notes The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job description may change or be supplemented at any time in accordance with business needs and conditions. Some roles may also require legal eligibility to work in a firearms environment. We collect personal information from applicants to evaluate candidates for employment. You may request access, deletion, or exercise other CCPA rights at axongreenhousesupport@axon.com or via our <a>Axon Privacy Web Form</a>. For more information, please see the Your California Privacy Rights section of our <a>Applicant and Candidate Privacy Notice. </a>Axon’s mission is to Protect Life and is committed to the well-being and safety of its employees as well as Axon’s impact on the environment. All Axon employees must be aware of and committed to the appropriate environmental, health, and safety regulations, policies, and procedures. Axon employees are empowered to report safety concerns as they arise and activities potentially impacting the environment. We are an equal opportunity employer that promotes justice, advances equity, values diversity and fosters inclusion. We’re committed to hiring the best talent — regardless of race, creed, color, ancestry, religion, sex (including pregnancy), national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, genetic information, veteran status, or any other characteristic protected by applicable laws, regulations and ordinances — and empowering all of our employees so they can do their best work. If you have a disability or special need that requires assistance or accommodation during the application or the recruiting process, please email recruitingops@axon.com. Please note that this email address is for accommodation purposes only. Axon will not respond to inquiries for other purposes.

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

Axon Interview Questions

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