Mid/Senior Firmware Engineer

3 days ago

Edinburgh EH, United Kingdom Stack-r Ltd Full time £45,000 - £65,000 per year

Firmware Engineer / Senior Firmware Engineer

Hybrid – Edinburgh (2 days on-site)

Salary: £45,000 - £65,000

Job Overview:

An established embedded systems consultancy is looking for a Firmware Engineer to join their team. You'll work across a variety of client projects, developing the low-level software that powers real products - from early prototypes right through to production-ready systems.

The work is hands-on, hardware-focused, and offers plenty of technical variety. You'll be in the office around two days a week for hardware testing, collaboration and project work, with the flexibility to work remotely the rest of the time.

Key Responsibilities:

  • Develop firmware in C/C++ for microcontroller-based systems.
  • Build and test device drivers, hardware interfaces and real-time features.
  • Own tasks across the full lifecycle: requirements, design, coding, debugging and system testing.
  • Work closely with electronics engineers during bring-up and prototype development.
  • Support technical discussions and help shape solutions with internal teams.
  • Senior engineers will take on leadership responsibilities - guiding junior engineers, reviewing code, and helping steer technical decisions on projects.

Experience:

Mid-Level:

  • Around 3+ years in embedded or firmware development.
  • Strong C or C++ experience.
  • Exposure to real-time systems (RTOS or bare-metal).
  • Familiar with peripherals and protocols (SPI, I2C, UART, CAN, networking etc.).
  • Comfortable working through design, implementation and testing.

Senior:

  • 6+ years in commercial firmware or embedded engineering.
  • Strong track record of owning features or subsystems end-to-end.
  • Experience providing technical leadership, mentoring junior engineers and supporting team delivery.
  • Confident in reviewing designs and helping guide technical decisions.
  • Comfortable handling client-facing technical conversations.

Both levels:

  • Good understanding of embedded development processes.
  • Clear communication skills and a collaborative approach.
  • Able to work independently and deliver reliable, well-tested code.

Additional Requirements:

  • You must already have the right to work in the UK.
  • This is a hybrid role - 2 days per week on-site is required.

If this sounds like something you'd be interested in, apply now for an informal chat.

Job Type: Full-time

Pay: £45,000.00-£65,000.00 per year

Benefits:

  • Company pension
  • Flexitime
  • On-site parking
  • Work from home

Ability to commute/relocate:

  • Edinburgh EH12: reliably commute or plan to relocate before starting work (required)

Experience:

  • Firmware: 3 years (preferred)

Work authorisation:

  • United Kingdom (required)

Work Location: Hybrid remote in Edinburgh EH12

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