Senior Embedded Software Engineer

iO Associates; Livingston; On-site; GBP 65,000 - 90,000; Full time

Job summary

iO Associates is seeking a Senior Embedded Software Engineer to design and deliver embedded products across markets from concept to production. You’ll work hands-on with engineers and customers, shaping architecture, implementation, testing, debugging and documentation.

The role covers C/C++ development, 16/32-bit MCUs, Ethernet/USB interfaces, and wireless standards. Strong Linux (Yocto) experience and excellent communication are required.

Qualifications

• 5+ years developing embedded/real-time systems.
• Strong C/C++ with modern features.
• Experience with 16/32-bit MCUs and ARM.
• Embedded Linux exposure (Yocto/Debian).
• Excellent communication and documentation skills.

Responsibilities

• Develop embedded/real-time software in C and modern C++.
• Build software for 16/32-bit microcontrollers.
• Integrate Ethernet, USB, RS232, I2C, SPI.
• Support wireless modules: Bluetooth, Wi-Fi, LoRa, NFC.
• Debug, test, and improve reliability/performance.
• Produce customer-facing docs and test evidence.
• Evaluate and adopt new tools and processes.

Skills

Embedded C/C++

Real-time OS

ARM/MCU

Embedded Linux

Communications protocols

Customer-facing

Debugging

Documentation

Git

Education

Bachelor’s degree in Software Engineering

Tools

Yocto

Git

Job description

A fast-growing engineering consultancy is looking for an experienced Senior Embedded Software Engineer to design and deliver innovative embedded products across varied markets. This is a hands‑on role where you’ll take ideas from early concept through prototype and into production, working closely with both engineers and customers.

The role

You’ll be developing robust, high-quality embedded software for technically demanding projects, often under tight timelines. You’ll contribute across the full lifecycle: architecture, implementation, testing, debugging, and customer-facing documentation.

What you’ll be doing

• Develop embedded/real-time software in C and modern C++
• Build software for 16/32-bit microcontrollers (e.g. ARM, PIC, MSP430, DSP)
• Integrate standard comms interfaces: Ethernet, USB, RS232, I2C, SPI
• Control and integrate wireless modules: Bluetooth, Wi‑Fi, LoRa, NFC
• Debug, fault-find, and improve reliability/performance of embedded systems
• Produce customer‑ready documentation, test evidence, and reports
• Evaluate and introduce new tools, techniques, and processes where useful
• 5+ years developing embedded / real‑time systems
• Strong commercial experience with modern C++ and C
• Embedded Linux development exposure (Yocto/Debian or similar)
• Confident with embedded comms protocols and typical hardware interfaces
• Good communication skills (internal + customer‑facing)

Nice to have

• Object-oriented design
• Windows / C#
• Security/crypto/TLS stacks
• DSP algorithms, image/video capture & processing

Qualifications

• Bachelor’s degree in Software Engineering (or related)
• Must have the right to work in the UK (sponsorship not available)