Senior Embedded Firmware Engineer

FullStack; Remote; USD 85,000 - 115,000; Full time

Job summary

A fast-growing consultancy firm based in the United States is seeking a Senior Embedded Firmware Engineer. This role involves either integrating into client teams or working on innovative products while developing firmware for embedded systems. Candidates should have over 5 years of experience, strong skills in C/C++, and a background in ESP32 platforms. The position offers competitive salary, 100% remote work, and ample opportunities for career advancement.

Benefits

Competitive salary

Paid time off

Health, dental, and vision insurance

401(k) with 4% match

Opportunities for career advancement

Qualifications

• 5+ years of professional experience as a Firmware Engineer or Embedded Systems Engineer.
• Advanced English is required.
• Proven experience working with ESP32 platforms, especially ESP32-C6 and ESP32-S3.

Responsibilities

• Integrate directly into client teams or work on FullStack product teams.
• Develop firmware for embedded systems from prototype to production-ready devices.
• Optimize firmware for performance, reliability, and real-time constraints.

Skills

Embedded firmware development

C and C++

ESP32 platforms

Audio processing

BLE-based communication

Low-power optimization

Real-time constraints

On-device AI inference

Education

Bachelor's degree in a relevant field

Job description

About FullStack

FullStack is one of the fastest-growing software consultancy companies in the Americas. We deliver transformational digital solutions to top global companies and Silicon Valley startups. As an employee-first company, we focus on hiring the most talented software designers and developers by creating a positive, respectful, and supportive work environment where they can achieve their greatest potential.

• Offering life-changing career opportunities to talented software professionals across the Americas.
• Building highly-skilled software development teams for hundreds of the world’s greatest companies.
• Having delivered hundreds of successful custom software solutions, which have positively impacted the lives and careers of millions of users.
• Our 4.2-star rating on GlassDoor.
• Our client Net Promoter Score of 68, twice the industry average.

We’re Most Proud Of

• Offering life-changing career opportunities to talented software professionals across the Americas.
• Building highly-skilled software development teams for hundreds of the world’s greatest companies.
• Having delivered hundreds of successful custom software solutions, which have positively impacted the lives and careers of millions of users.
• Our 4.2-star rating on GlassDoor.
• Our client Net Promoter Score of 68, twice the industry average.

The Position

We’re Looking To Hire a Senior Embedded Firmware Engineer To Join Our Team. You’ll Work With Our Incredible Clients In One Of Two Ways

• Team Augmentation: You will integrate directly into our client’s team and work alongside their existing designers and engineers daily.
• Design & Build: You will work on a FullStack product team to build and deliver a product to our clients.

What We’re Looking For

• 5+ years of professional experience as a Firmware Engineer or Embedded Systems Engineer.
• Advanced English is required.
• Successful completion of a four‑year college degree is required.
• Strong hands‑on experience developing embedded firmware using C and C++.
• Proven experience working with ESP32 platforms, with ESP32‑C6 and ESP32‑S3 strongly preferred.
• Experience developing embedded systems from prototype hardware to production‑ready devices.
• Hands‑on experience with audio processing, DSP, and low‑latency audio streaming (e.g., WebSockets, UDP).
• Experience with BLE‑based proximity features and wireless communication on embedded devices.
• Strong background in low‑power optimization, including deep sleep modes and battery management.
• Experience working with IMU sensors and motion tracking in embedded systems.
• Familiarity with on‑device AI inference or embedded ML workloads is a strong plus.
• Demonstrated ability to optimize firmware for performance, reliability, and real‑time constraints.
• Comfortable working alongside hardware iteration cycles and manufacturing timelines.
• Strong understanding of embedded development workflows, including code reviews, documentation, testing, and maintainability.
• Ability to work through new and difficult issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of applications.
• Forensic attention to detail.
• A positive mindset and a can‑do attitude.
• Meaningful experience working on large, complex systems.
• Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon.
• Ability to consistently work 40 hours per week.

What We Offer

• Competitive Salary.
• Paid Time Off (vacation, sick leave, maternity and paternity leave, holidays).
• 100% remote work.
• The ability to work with leading startups and Fortune 500 companies.
• Health, dental, and vision insurance.
• 401(k) w/ 4% match.
• Ample opportunity for career advancement.
• Continuing education opportunities.

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