Embedded Software Engineer

Green Key Resources; Manchester (NH); On-site; USD 110,000 - 150,000; Full time

Job summary

Green Key Resources is seeking an Embedded Software Engineer in Manchester, NH to develop and integrate software for defense-focused unmanned systems. You will work across disciplines to deliver reliable, high-performance software from concept to deployment.

Responsibilities include designing, debugging, and validating embedded code, deploying flight and ground-control software, and collaborating with hardware teams. Strong C/C++ expertise and RTOS experience are required.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related technical field, with 5+ years of embedded software development experience or equivalent practical experience.
• Strong programming experience in C and C++.
• Experience developing software for embedded systems; background in aviation or vehicle control systems is a plus.
• Familiarity with RTOS and integrating embedded software with devices such as EEPROMs, FPGAs, and ASICs.
• Experience with autonomous or semi-autonomous systems is highly desirable.
• Knowledge of embedded interfaces and protocols such as I2C, UART, USB, MIPI, or similar.

Responsibilities

• Contribute to development of new products from concept through testing and production.
• Collaborate with mechanical, electrical, systems, and software engineers, PM, suppliers, and customers.
• Design, implement, debug, and maintain embedded software following CM and QA practices.
• Develop, configure, integrate, and deploy flight and ground-control software across platforms.
• Support evaluation and selection of components (microprocessors, microcontrollers, memory).
• Troubleshoot hardware, firmware, and software integration issues with electrical engineers.
• Develop test infrastructure and tools to support system validation and performance testing.
• Create technical documentation on software, testing, configuration, and system operation.
• Analyze problems, identify root causes, and develop solutions to improve performance.

Skills

C/C++ programming

Embedded systems development

System integration and debugging

Analytical/problem-solving

Communication

MS Office

Education

Bachelor’s or Master’s in CS/EE

Tools

I2C

UART

USB

MIPI

Job description

We are seeking an Embedded Software Engineer to develop, integrate, debug, and test software supporting unmanned systems, subsystems, and engineering test platforms for defense applications. This position requires strong analytical thinking, hands-on problem solving, and the ability to work effectively across multiple engineering disciplines. You will collaborate with a highly technical team to develop reliable, high-performance products from early concept through deployment and production.

Responsibilities

• Contribute to the development of new products from initial concept and research through engineering development, testing, and production.
• Collaborate closely with mechanical, electrical, systems, and software engineers, as well as program management, suppliers, and customers.
• Design, implement, debug, and maintain embedded software while following established configuration management and software quality practices.
• Develop, configure, integrate, and deploy flight and ground-control software across a range of small aerial and ground-based platforms.
• Support the evaluation and selection of microprocessors, microcontrollers, memory, and other embedded computing components.
• Partner with electrical engineers to troubleshoot and resolve complex hardware, firmware, and software integration issues.
• Develop test infrastructure and tools to support system validation, performance testing, and product development.
• Create clear technical documentation covering software, testing, configuration, and system operation.
• Analyze complex technical problems, identify root causes, and develop practical solutions that improve system performance and reliability.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related technical field, with 5+ years of embedded software development experience or equivalent practical experience.
• Strong programming experience in C and C++.
• Experience developing software for embedded systems; background in aviation or vehicle control systems is a plus.
• Familiarity with real-time operating systems (RTOS) and integrating embedded software with devices such as EEPROMs, FPGAs, and ASICs.
• Experience working with autonomous or semi-autonomous systems is highly desirable.
• Knowledge of embedded communication interfaces and protocols such as I²C, UART, USB, MIPI, or similar technologies.
• Hands-on experience with system integration, debugging, and test.
• Strong analytical, troubleshooting, and problem-solving abilities.
• Excellent organizational and communication skills, with the ability to work effectively with customers, suppliers, and cross-functional engineering teams.
• Proficiency with Microsoft Office applications, including Word, Excel, and PowerPoint.

Additional Requirements

• Must be a U.S. Person.
• Ability and willingness to contribute in a fast-paced startup environment, taking ownership and helping build processes and products from the ground up.
• Occasional domestic travel may be required to support customer testing, system integration, or design reviews.