Prepare for and practice interview questions from Rfa Engineering.

Rfa Engineering Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Rfa Engineering 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?

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

A/B Testing & Experimentation

<h3>Job Description</h3><div>Job Description<div>RFA Engineering (www.rfamec.com) supports industry-leading clients through the full software development lifecycle to build cutting-edge precision agriculture, machine guidance, vehicle automation and autonomy applications. We are seeking passionate, talented engineers to work on exciting projects using the latest tools and technologies including robotics, computer-vision, machine learning, IoT, cloud computing, and much more. Collaborate with a team of industry experts onsite at our client's world-class engineering center and contribute to developing innovative solutions that drive sustainable agriculture practices.This is a full-time position with a full benefit package listed below that includes opportunities for professional growth, direct hire by our customers, and additional opportunities within our own organization.Entry Level Software Engineer<ul></ul>This position is associated with developing and maintaining system automation tests for the next generation of embedded controllers. Candidates should be able to collaborate with development teams to deliver a full suite of automated tests to ensure consistent high code quality and features. Responsibilities<ul><li>Write and maintain system-level automated tests written in Python.</li><li>Contribute to test strategy and architecture as required</li><li>Debug intermittent test failures to determine root cause, and assign software defects as needed.</li><li>Working to improve test yield of existing test cases. This may mean collaborating with software developers and triaging test failures.</li><li>Coordinate the technical execution of test scripting with additional resources.</li><li>Attend regular meetings and stand-ups in order to respond to changing needs.</li><li>Attend meetings in-person with development teams to identify automation testing needs.</li><li>Attend meetings with Product Test Leads to define the test strategy, and steps to execute for a given test case.</li></ul>Requirements<ul><li>Bachelor's or Master's degree in Computer Science or Electrical Engineering. Other degrees are considered if relevant experience exists.</li><li>Professional proficiency in Python with demonstrated experience in automation, testing, or software development.</li><li>Strong verbal and written communication skills</li></ul>Desired Attributes<ul><li>General machine knowledge of agriculture or off-road equipment and machinery</li><li>Practical working knowledge and application of UDP, TCP/IP, CAN, or other networking communication protocols.</li><li>Basic experience with microcontrollers such as Arduino, RaspberryPi, or more complex embedded systems.</li><li>Self-motivated, quick learner, with an any-problem-can-be-solved attitude</li><li>Strong mathematical and analytical problem-solving skills</li><li>Ability to thrive in a team environment</li><li>Experience with Linux Ubuntu</li><li>Experience with Bash scripting.</li><li>Experience with C++ or Qt</li></ul>VISA Sponsorship is NOT available for this position.Pay Range: $65,000-$90,000 – Commensurate with experienceAbout RFA EngineeringRFA Engineering has provided product development and engineering services to industry leading customers since 1943. Our primary focus is the development of off highway equipment including agricultural, construction, mining, recreational, industrial, and special machines. Our work includes concept development, product design, documentation, problem-solving, simulation, optimization, and testing of components, systems and complete machines. Our engineering staff is located at our Engineering Center in Minneapolis, branch office in Dubuque, IA, and at numerous customer sites throughout the U.S. Competitive Benefits<ul><li>Health and Dental Insurance</li><li>TelaDoc Healthiest You</li><li>Supplemental Vision Insurance</li><li>Company Paid Life Insurance</li><li>Company Paid Long-Term Disability</li><li>Short-term Disability</li><li>Retirement Savings Account (Traditional 401k & Roth 401k)</li><li>Flexible Spending Plan Dependent Care</li><li>HSA for Medical Expenses</li><li>Bonus Plan (Exempt Employees Only)</li><li>Paid Time Off (PTO)</li><li>Paid Holidays</li><li>Bereavement Leave</li><li>Employee Assistance Programs (EAP)</li><li>Education Assistance</li></ul>Equal Opportunity and Veteran Friendly#ZR</div></div>

<h3>Job Description</h3><div>Job Description<div>RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking an experienced candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility.This is a full-time position with a full benefit package listed below that includes opportunities for professional growth, direct hire by our customers, and additional opportunities within our own organization.Entry Level Software EngineerThis position is associated with the design and development of embedded software that controls machine operations and functions. Various development roles are available that require use of C, C++, Python or Simulink MBSD programming languages. Testing methods include bench testing with controllers, extensive vehicle simulation testing, and physical full machine testing.Responsibilities<ul><li>Development of embedded software applications that control vehicle operation using C, C++, or Simulink MBSD.</li><li>Integration of software in a multi-developer Agile team using Continuous Integration process.</li><li>Functional and integration testing prior to hand-off to software test and evaluation group</li><li>Development and release status tracking using the Agile development process.</li><li>Troubleshooting and debugging using unit tests, vehicle simulators and bench testing of controllers with hardware in the loop.</li><li>Creation of software design documentation.</li></ul>Requirements<ul><li>Bachelor's or Master's of Science degree in Computer Science, Software Engineering, Electrical Engineering, Computer Engineering or related degree.</li><li>Experience with C or C++ programming languages</li><li>Strong mathematical and analytical problem solving skills</li><li>Strong verbal and written communication skills.</li><li>Ability to thrive in a team environment</li><li>Self-motivated, quick learner, with an any-problem-can-be-solved attitude</li><li>Must have a valid driver’s license</li></ul>Desired Attributes<ul><li>Experience with CAN J1939 communication protocol</li><li>Previous experience in a structured software development process</li><li>Ability to interpret hardware schematics for wiring and electronic controllers</li><li>Ability to interpret software requirements and state diagrams</li><li>Knowledge of common software development tools such as VisualBasic,</li><li>Experience with Simulink Model Based Software Design</li><li>General machine knowledge of industrial equipment or machinery</li></ul>Pay Range: $65,000-$90,000 – Commensurate with experienceAbout RFA EngineeringRFA Engineering has provided product development and engineering services to industry leading customers since 1943. Our primary focus is the development of off highway equipment including agricultural, construction, mining, recreational, industrial, and special machines. Our work includes concept development, product design, documentation, problem-solving, simulation, optimization, and testing of components, systems and complete machines. Our engineering staff is located at our Engineering Center in Minneapolis, branch office in Dubuque, IA, and at numerous customer sites throughout the U.S. Competitive Benefits<ul><li>Health and Dental Insurance</li><li>Health Savings Account</li><li>TelaDoc: Virtual Health Care</li><li>Vision Insurance</li><li>Company Paid / Supplemental Life Insurance</li><li>Company Paid Long-Term Disability</li><li>Supplemental Short-Term Disability</li><li>Retirement Savings Account (Traditional 401k & Roth 401k)</li><li>Flexible Spending Plan Dependent Care</li><li>Bonus Plan (Exempt Employees Only)</li><li>Paid Time Off (PTO)</li><li>Paid Holidays</li><li>Bereavement Leave</li><li>Employee Assistance Programs (EAP)</li><li>Education Assistance</li></ul>Equal Opportunity and Veteran Friendly#ZR</div></div>

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

Rfa Engineering Interview Questions

Rfa Engineering Interview Guides

Rfa Engineering Interview Questions

Rfa Engineering Opening Jobs