Senior Electronics Engineer - Contract (Outside IR35) | £50 - £55/hr | Hybrid (3 Days On-Site) | Leading Smart Battery Manufacturer Are you an experienced Senior Electronics Engineer looking for an exciting contract opportunity? Join a UK's leading independent battery design, development, and manufacturing company, renowned for pioneering high-performance portable and handheld electronic devices. This is a fantastic opportunity to work at the forefront of smart battery technology. The Role: As a Senior Electronics Engineer, you will play a key role in the design and development of custom and standard battery solutions for a range of applications. You will work in a multi-disciplinary engineering team, contributing to the full product lifecycle from concept to manufacture. Occasional national and international travel may be required for customer visits and trade shows. Key Responsibilities: Collaborate with customers to define requirements and solutions Develop product specifications and design documentation Design & develop using 8-bit and 16-bit microcontrollers Work on analogue circuit design and switch-mode power supply design (DC/DC) Create schematics and PCB layouts (preferably in Altium Designer) Ensure designs meet EMC standards and liaise with test houses Conduct design validation, testing, and manufacturing optimization Provide technical input for new product ideas Estimate and manage task durations effectively What You Need: Degree in Electrical/Electronic Engineering Experience in mixed analogue/digital board development Strong low-power design expertise Knowledge of switch-mode power supply design Experience with I2C peripherals and embedded C software development Understanding of EMC regulations & compliance Experience in designing for cost-sensitive applications Ability to manage supplier relationships and product lifecycles Full UK driving license The Details: Location: Commutable from Staffordshire, Cheshire, Manchester, Birmingham, Wolverhampton, Derby, and surrounding areas Contract: 3 months (Outside IR35) Rate: £50 - 55 per hour Hybrid: 3 days on-site