Salary: £60,000 - 80,000 per year Requirements: Highly proficient in C++ Excellent grasp of electronics schematics and datasheets Experience with consumer products Good communicator who can work with various engineering disciplines Passion for running/cycling and wearable technology is a large plus 8 years of experience in C++ (preferred) Responsibilities: Develop the UNA kernel, low-level drivers and applications in C++ Define and maintain the firmware architecture Drive forward improvements in sensor tuning and power efficiency Manage external team of firmware developers Work with mobile app team Technologies: Firmware Mobile C++ FreeRTOS More: At UNA, we believe in making technology open and accessible, allowing users to repair and upgrade their own devices. Our first product, a GPS sports watch, aims to empower users in this way. Our founding team has a robust product design background in wearable tech. Following a successful Kickstarter launch, we are gearing up for product distribution and additional software developments throughout 2026. We offer a flexible work environment, including fully remote, hybrid, or office-based options, located near Haymarket, Edinburgh. Join us and become a key part of our growing start-up, working alongside our experienced design team. last updated 4 week of 2026