Sr. Software Engineer, Power Hardware-in-the-Loop, Amazon Leo

Amazon Leo is Amazons low Earth orbit satellite network. Our mission is to deliver fast reliable internet connectivity to customers beyond the reach of existing networks. From individual households to schools hospitals businesses and government agencies Amazon Leo will serve people and organizations operating in locations without reliable connectivity.

Export Control Requirement: Due to applicable export control laws and regulations candidates must be a U.S. citizen or national U.S. permanent resident (i.e. current Green Card holder) or lawfully admitted into the U.S. as a refugee or granted asylum.

We are seeking an experienced Senior Software Engineer (software testing software) to join the satellite bus systems team. You will work closely with a world-class team of engineers and business leaders to verify power system avionics hardware and power management algorithms/software.

In this role you will focus on designing and building services that help the team develop and execute automated test cases for hardware in the loop testing utilizing power emulation test racks and satellite flight hardware. You will participate in all phases of test software development from requirements through implementation test and deployment.

You should have deep expertise in the design creation management and use of large sensor datasets creating test cases and building/utilizing APIs for software services.

Key job responsibilities
- Design build and maintain services that enable the team to develop and execute automated test cases for power hardware-in-the-loop testing
- Collaborate with hardware software and test infrastructure teams to integrate test and validate new features using synthetic data in simulation environments or hardware-in-the-loop testbed systems.
- Work with stakeholder peer teams and customers to build verification matrices and test cases for satellite power subsystem battery and solar array.
- Develop/utilize monitoring and alerting systems to track space and ground infrastructure health and stability.
- Develop software systems in Python Java or another modern language.
- Automate operational workflows to reduce manual intervention and improve system efficiency.
- Build and maintain robust and well-documented APIs that allows other engineers and partners to develop their own custom models integrations and test assertions.

A day in the life
This is a fast-paced intellectually challenging position. You will be focused on verifying product and system requirements through verification test campaigns across multiple venues including hardware in the loop testing and production acceptance testing. You will develop test processes and tools including automation which will scale test campaigns while holding a high bar for quality and test coverage. You will perform tests on flight hardware and root cause issues found in test campaigns.

About the team
You will be a member of the Satellite Power Systems Test team working within the wider Electrical Engineering organization. This highly collaborative group of hardware and software engineers has a diverse range of backgrounds and knowledge. We are looking for someone to own test automation infrastructure and architecture for our complex satellite systems test platform. This platform helps validate hardware and software interfaces and acts as a main regression test venue. We tackle problems that span a variety of domains and everyone on the team needs to be entrepreneurial wear many hats and work in a highly collaborative environment.

- 5 years of non-internship professional software development experience
- 5 years of programming with at least one software programming language experience
- 5 years of leading design or architecture (design patterns reliability and scaling) of new and existing systems experience
- Experience as a mentor tech lead or leading an engineering team
- Bachelors degree in computer science or equivalent
- 3 years of test automation frameworks and tools building experience

- Masters degree in computer science or equivalent
- 5 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Experience communicating clearly and concisely with leadership stakeholders and cross-functional teams
- System test verification experience in the area of power conversion power systems solar battery electric vehicles satellites or rockets.
- Experience in Python or C/C to interface with test equipment and visualize results
- Experience building test automation infrastructure for hardware-in-the-loop testbeds and integrated vehicle checkouts

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status disability or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process including support for the interview or onboarding process please visit for more information. If the country/region youre applying in isnt listed please contact your Recruiting Partner.

Our compensation reflects the cost of labor across several US geographic markets. The base pay for this position ranges from $151300/year in our lowest geographic market up to $261500/year in our highest geographic market. Pay is based on a number of factors including market location and may vary depending on job-related knowledge skills and experience. Amazon is a total compensation company. Dependent on the position offered equity sign-on payments and other forms of compensation may be provided as part of a total compensation package in addition to a full range of medical financial and/or other benefits. For more information please visit This position will remain posted until filled. Applicants should apply via our internal or external career site.