Remote Embedded Software Jobs in Foothill Ranch, CA

Are you an Embedded Software Engineer who loves building high-performance firmware, collaborating with global teams, and shaping the next generation of intelligent, connected hardware?

Fieldpiece Instruments is a thriving team of innovators - committed to pushing boundaries and celebrating curiosity.  We’ve been providing HVACR professionals with rugged, feature-rich tools like meters, manifolds, leak detectors, and more since 1990.  Fieldpiece leads the industry in the way we think, work, collaborate, and remain laser-focused on creating products that empower HVACR professionals – today and tomorrow.  If you thrive in an environment where challenges are embraced, ambiguity fuels innovation, and relationships are built on trust and transparency—this is your opportunity.

We’re looking for a hands-on Embedded Software Engineer with deep experience in microcontrollers, embedded systems design, and offshore team collaboration. If you enjoy architecting firmware from the ground up, optimizing every byte, and working closely with manufacturing partners—you’ll feel right at home.

**This position is currently located in our Orange, CA office with an exciting move to a new office in Tustin, CA in mid-2028.

Recognized as one of Southern California’s Best Places to Work (2023, 2024 & 2025), we provide a Hire-to-Retire philosophy, hybrid schedule, and a culture of curiosity – a place where you’ll have the support to innovate boldly, grow continuously, and make a tangible impact on an industry that powers everyday life.

What You’ll Do

Embedded Design & Development

• Develop and maintain firmware for microcontrollers (ARM Cortex-M, ESP32, PIC, etc.).
• Build and debug low-level drivers, middleware, and application features.
• Optimize firmware for performance, memory, power, and reliability.
• Create unit, integration, and automated tests to ensure quality.

Vendor & Offshore Team Coordination

• Act as the primary technical liaison for offshore developers and manufacturing partners.
• Review and approve firmware deliverables; manage bugs and drive issue resolution.
• Lead design and code reviews; produce requirements, specs, and test plans.
• Track project progress, risks, and milestones to ensure timely delivery.

Cross-Functional Collaboration

• Translate product requirements into technical specifications.
• Partner with electrical and mechanical teams on system integration and debugging.
• Support QA, manufacturing, and field teams across prototype to production.
• Deliver documentation, release notes, and production-ready firmware packages.

• Bachelor’s degree in engineering or another STEM field (Master’s preferred).
• 5+ years of professional experience developing embedded firmware for microcontrollers (ARM Cortex-M, ESP32, PIC, etc.).
• Strong passion for product quality, testing, automation, and continuous improvement.
• Excellent communication and documentation skills.
• 2+ years of experience mentoring or coordinating offshore development teams, including reviewing deliverables and managing requirements.

At Fieldpiece, we believe great work deserves great rewards. We offer:

• Matching 401k up to 4% with immediate vesting.
• Excellent medical benefits including an HSA plan and monthly contributions.
• Supplemental Term Life, Employee Assistance Programs (EAD), Disability, and more.
• Hire to Retire philosophy that includes personal career development plans.
• Onsite music program with lessons from guitar, piano and voice coaches. 
• And more!

Our values drive everything we do and our culture.

We are a TRIBE.

Our collective growth starts with individual growth.

We are fully engaged and empowered, collaborating to achieve our common mission.

Our people are central in making Fieldpiece the best place we will work, ever.

We do the UPFRONT HOMEWORK.

We are prepared before coming together to move forward effectively.

We begin with the end in mind by understanding The Why upfront, visualizing, researching, and acting.

We address obstacles head-on with creativity, grit and tenacity, while having fun along the way.

We deliver the RIGHT STUFF.

We deliver innovative solutions by seeing the world through the eyes of our customers.

Our culture of purposeful critical thinking leads to greatness now, rather than perfection never.

We earn TRUST.

We prove our credibility, reliability, and genuine interest in others to build lasting relationships.

Our tribe, partners, end users, suppliers and channel partners can rely on us to listen, act with integrity, and deliver quality.

We are LEAN.

We never stop searching for a better way.

We get started, fail fast, and move forward.

Our actions deliver valuable results.

We leave our EGO at the door.

We are unconcerned to be judged by the questions we ask.

With humility, we value and pursue ideas and feedback from everyone.

Our personal success is derived from the tribe’s success.

The California base annual salary range for this role is currently $140,000-180,000 plus 10% bonus.  Pay scales are determined by role, level, location, and alignment with market data. Individual pay is determined through interviews and an assessment of several factors that that are unique to each candidate, including but not limited to, job-related skills, relevant education and experience, certifications, abilities of the candidate and pay relative to other team members. We can share more information about our bonus program and benefits during the hiring process.

EOE AA M/F/Veteran/Disability