Senior Embedded Software Engineer

Embedded Software Engineer (Contract / Flexible) – Outside IR35

We are a small but established engineering firm looking to engage an experienced Embedded Software Engineer on a flexible, non-committed, Outside IR35 basis.

Our existing embedded software contact is no longer available, and we are now seeking a trusted, go-to embedded engineer to support our products and future developments on an ongoing basis.

This role is ideal for an experienced contractor or freelancer who values autonomy, flexibility, and long-term collaboration without fixed hours or guaranteed workload.

The Role

  • Act as the primary embedded software contact for the business
  • Take ownership of embedded firmware development as projects arise
  • Work closely with hardware and systems engineers
  • Support development from concept through to production and maintenance
  • Provide continuity and technical guidance across embedded projects

Technical Requirements

Essential:

  • Strong experience in embedded C / C++
  • Hands-on embedded firmware development on microcontrollers
  • Low-level driver development and hardware interaction
  • Debugging using JTAG/SWD and similar tools
  • Ability to work independently and take responsibility for delivery

Desirable:

  • Experience with DALI (Digital Addressable Lighting Interface) development
  • Familiarity with common embedded protocols (UART, SPI, I2C, CAN, etc.)
  • Experience supporting products through manufacturing and field deployment
  • Industrial or commercial embedded systems background

Engagement Details

  • Contract / Freelance
  • Outside IR35
  • Flexible, non-committed workload
  • Work allocated on a project or ad-hoc basis
  • Remote working acceptable (occasional on-site support may be required)
  • Focus on long-term relationship, not one-off work

Ideal For

  • Experienced embedded engineers or contractors
  • Those looking for a reliable, ongoing client relationship
  • Engineers who enjoy being a key technical contributor without corporate overhead

Why Work With Us?

  • Established, stable business
  • Interesting, real-world embedded products
  • Technical autonomy and trust
  • Flexible working arrangement
  • Opportunity to become our default embedded software partner

If you're interested, please comment or message directly with a brief summary of your experience and availability.

Apply Now
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Job Details

Company
X4 Technology
Location
Derby, Derbyshire, UK
Hybrid / Remote Options
Employment Type
Full-time
Posted