Principal Embedded Software Engineer

Job overview

The Principal Embedded Software Engineer role is primarily onsite in Waltham, Massachusetts, with occasional remote work for one-off needs. The base salary range is $148,000–$240,000 per year, plus a competitive target bonus, equity, and benefits. The role supports Evolv’s Research and Development team, which develops security products intended to contribute to a safer world. The engineer provides hands-on technical leadership for the C++ software team, improving embedded software performance, reliability, and scalability. The role advances product architecture and engineering practices while collaborating across product, software quality assurance, DevOps, and hardware teams.

What you'll do

• Maintain and improve the C++ codebase for performance, reliability, and scalability
• identify and resolve defects and performance bottlenecks
• collaborate with Product, SQA, DevOps, and hardware engineers
• review code and mentor junior developers
• lead system design and architecture discussions
• support build automation and CI/CD pipelines
• translate mathematical algorithms into optimized C++ code
• design real-time systems and multithreaded applications
• integrate machine-learning inference engines into fast-path pipelines
• benchmark performance
• write clean, documented, testable code
• maintain quality through peer review and testing.

What we're looking for

Skills & competencies

principal embedded software engineer

evolv technologies

waltham ma

$148,000–$240,000/year

embedded software

c++

real-time systems

computer vision

machine learning inference

ci/cd

technical leadership

mentoring

Work arrangement

• Weekend coverage required

Benefits & perks

• Equity
• medical, dental, and vision insurance
• Flexible Spending Accounts
• 401(k) with 2% company match
• unlimited vacation policy
• quarterly perks stipend
• tuition reimbursement
• Calm subscription.

Why this role

Daily office attendance is expected, with remote work possible occasionally for one-off needs; role reports to the Director of Software Engineering and works with a team of 15 engineers.

About the employer

Evolv Technologies Inc. is hiring for this role. Industry: Computer Systems Design Services. Sector: 54.