Firmware Engineer

Massachusetts Clean Energy; Somerville (MA); On-site; USD 85,000 - 125,000; Full time

Benefits offered by this job

Health Insurance

Flexible PTO

Stock Options

Bonuses

401K

Job summary

Transaera, based in Somerville, MA, is seeking a Firmware Engineer to help develop and maintain controls firmware for innovative heat pump systems. You will contribute from design through prototype testing and work with hardware and software teams to deliver reliable, energy-efficient HVAC technology.

The role requires a bachelor's in a relevant engineering field, 1+ years in firmware or embedded software, and willingness to travel ~20%. Familiarity with Git and Modbus/BACnet is a plus.

Qualifications

• Bachelor's degree in a relevant engineering field.
• 1+ years of firmware or embedded software experience.
• Strong problem solving and autonomous work style.
• Familiarity with Git.
• Willingness to travel at least 20%.

Responsibilities

• Develop and maintain controls firmware for heat pump systems.
• Contribute from design to prototype testing and optimization.
• Support fielded product commissioning and troubleshooting.
• Perform code reviews and adhere to firmware best practices.
• Ensure reliability, security, and performance.
• Collaborate with hardware, software and systems teams.
• Create test plans and estimate task timelines.

Skills

Firmware development

Embedded software

Git

Problem solving

Communication

Education

Bachelor's degree in engineering

Tools

Git

Modbus

BACnet

Structured text

Job description

Transaera is a fast-growing, VC-backed startup redefining the future of air conditioning with a materials-based approach that generates 40% energy savings. Based in Somerville, MA, we’re tackling one of the planet’s most pressing challenges: making cooling more efficient, affordable, and environmentally friendly.

At Transaera, you’ll join a passionate team of engineers, scientists, and visionaries committed to creating a cooler, greener future. Learn more about our revolutionary work at www.transaera.com .

The Role

What You’ll Do

As a Firmware Engineer at Transaera, you will play a key role in the development and maintenance of controls firmware for novel heat pump systems. Your contributions will be critical to the operation and reliability of the world’s most efficient HVAC systems that leverage Transaera’s new materials technology. You will contribute to the firmware development, from conceptual design to prototype testing and system optimization. You will support fielded product commissioning and troubleshooting, travelling when needed. This role demands a deep understanding of programming fundamentals, desire to learn, attention to detail, as well as the ability to collaborate with the team and external partners in a fast-paced, startup environment.

Job Duties/Responsibilities

Maintain and improve existing firmware code bases, manage upgrades to existing fielded products and firmware revision roll‑outs.

Develop UX for field support interface and for end of line (EoL) testing.

Work with project management and Firmware Team Lead to develop test plans, execution backlogs, and provide accurate time estimates to complete your tasks.

Troubleshoot complex system issues involving hardware, firmware, and software interactions.

Support product validation, field testing, deployment activities and field startup support as required.

Perform code reviews and adhere to best practices for firmware development.

Ensure compliance with industry standards for reliability, security, and performance.

Support documentation efforts for firmware architecture, test procedures, and engineering reports.

Collaborate with cross‑functional teams including hardware, software, and systems engineering.

Qualifications

What You’ll Bring

We recognize that there are many paths to success. While we list desired skills and qualifications below, we encourage you to apply if you meet most of them or have transferable experiences.

Required Skills and Experience:

Bachelor’s degree or foreign equivalent with strong emphasis on embedded software: Computer Science, Software Engineering, Mechanical Engineering, Electrical Engineering, Computer Engineering

1+ years of experience in a firmware, embedded software or related role

Strong problem‑solving skills and the ability to work autonomously in a fast‑paced, results‑driven environment.

Familiarity with Git.

Excellent communication skills to present technical data and collaborate with internal and external teams.

Ability to travel at least 20% of the year.

Preferred but Not Required:

Demonstrated knowledge of HVAC or thermodynamics.

Demonstrated knowledge of communication protocols such as Modbus, BACnet, etc.

Experience with database management.

Familiarity with C.Suite or other block diagram and/or structured text programming languages.

Why Join Us?

Impact: Be part of a mission‑driven team that values innovation and creativity, where your contributions directly shape the future of the company and the impact it has on the world.

Growth: Fast growing startup, real time learning and growth opportunities, come grow your career with us.

Inclusivity: We are a supportive, equitable environment where diverse perspectives are valued. We encourage questions, and challenge the status quo for the sake of growth and development.

Benefits: Health Insurance, Flexible PTO, Stock Options, Bonuses, and 401K

Our Commitment to Diversity, Equity, and Inclusion

At Transaera, we believe that diverse teams drive innovation and success. We are committed to building an inclusive workplace where everyone feels valued and respected. We welcome applicants from all backgrounds, experiences, abilities, and perspectives.