Senior Embedded Software Engineer – BLE/Audio Codec

microTECH Global Limited; Belfast; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

A leading technology firm seeks a Senior Embedded Software Engineer to join their innovative BLE/Audio Codec team. This role involves developing firmware for low-power embedded systems like wireless earbuds, requiring expertise in embedded C/C++ and collaboration with cross-functional teams. The position offers flexible working options and is based in Belfast.

Qualifications

• Strong embedded C/C++ skills required.
• Experience with BLE and audio codecs preferred.
• Familiarity with DSP and embedded systems essential.

Responsibilities

• Develop and optimise embedded firmware for BLE audio devices.
• Work on LC3 codec integration and system-level performance tuning.
• Collaborate with hardware, DSP, and software teams.

Skills

Embedded C/C++

BLE

DSP

Embedded Linux

Cross-compilation

Python

Job description

Senior Embedded Software Engineer – BLE/Audio Codec
Location: Belfast (On-site preferred with flexible WFH options)
Contract: Inside IR35
Duration: 6–12 months (likely extension)
Start Date: ASAP

Overview:
We're seeking a highly skilled Embedded Software Engineer to join a cutting-edge BLE/Audio Codec team working on ultra-low-power embedded systems, such as wireless earbuds and headphones. This role requires strong embedded C/C++ skills, with a focus on code optimisation for constrained environments.

Key Responsibilities:

• Develop and optimise embedded firmware for BLE audio devices
• Work on LC3 codec integration and system-level performance tuning
• Collaborate with hardware, DSP, and software teams to deliver end-to-end solutions
• Debug and profile firmware on target systems using cross-compilation tools

Key Technologies:

• Embedded C/C++ (performance-optimised code for low-resource systems)
• BLE / LC3
• DSP (Digital Signal Processing fundamentals)
• Embedded Linux
• Cross-compilation (GCC toolchain)
• Python (desirable, not essential)

Working Model:

• Ideally 5 days/week on-site in Belfast
• Flexible structure: WFH mornings or afternoons allowed