Rullion are looking to recruit for the following role: Electronics Engineer Start : 1st May 2026 12 month contract Location : Oxford Inside IR35 PAYE 46 Per hour / 59 Per hour Umbrella. 7.5 hours per day 37.5 hours per week Power Supply & Power Electronics Design Design and develop high-current, high-stability power supplies for superconducting magnets and related systems Design linear and switch-mode power converters (DC/DC, AC/DC, current-regulated supplies) Develop precision current regulation and control loops with excellent stability and low ripple Perform detailed control-loop analysis (Bode plots, phase margin, transient response) Design protection circuits (over-current, over-voltage, ground fault, quench-related protection) Select power semiconductors (IGBTs, MOSFETs, diodes), magnetics, and passive components Magnet System Support Support powering, ramping, and steady-state operation of superconducting magnets Understand magnet load...

Job Title: Project Engineer Contract Duration: 6 months (extension subject to requirements) Location: Sealand, Deeside (Flintshire) Working Arrangement: Full-time, onsite Role Overview We are seeking a capable and adaptable Project Engineer with a strong background in electronics. This role combines technical engineering involvement with project delivery and elements of supplier coordination and logistics. The successful candidate will contribute to the delivery of critical defence programmes, applying structured project methodologies (such as PRINCE2 or APM frameworks) while working collaboratively across multidisciplinary teams. A significant portion of the role will involve stakeholder engagement and coordination activities. Regular onsite presence is essential, particularly during onboarding. Occasional travel to other client locations (including Bristol, Andover and Portsmouth) may be required. Key Responsibilities Manage projects from initial planning...

I'm recruiting for a HV Design Engineer to work on a long contract outside of IR35 to work with a leading international engineering and consulting group. They work in close partnership with clients to solve complex challenges around the movement of people, goods, and services-delivering innovative, resilient infrastructure solutions. With a strong focus on future-ready design, they are at the forefront of developing smarter, more efficient infrastructure that responds to evolving technologies, changing behaviours, and increasing demand. Their approach puts people at the heart of design, combining technical excellence with a collaborative, forward-thinking culture. With ambitious growth plans in the UK, this is an excellent time to join the business as they continue to expand their footprint and reputation across the energy and infrastructure sectors. Hybrid working based out of offices in either London, Birmingham, York, Manchester, Edinburgh or Reading. They are...

Job Opportunity: Installation Engineer (Fixed Term Contract) Are you ready to embark on an exciting journey in the world of diagnostics? Our client is seeking a passionate and skilled Installation Engineer to join their dynamic team on a 12-month fixed-term contract. If you're driven by innovation, possess a "can-do" attitude, and thrive in a fast-paced environment, this role could be a perfect fit for you! Key Details: Position: Installation Engineer Contract Type: Fixed Term Contract (12 months) Daily Rate: 200 - 250 Working Pattern: Full Time Driving Required: Yes (Full UK/EU driving licence) Location: Field-based with regular overnight stays throughout the UK & Ireland What You'll Do: As an Installation Engineer, you will play a crucial role in our Customer Projects team, responsible for: Performing high-quality installations of critical instruments including cPro, c8800, c8000, and c6800. Troubleshooting and providing 1st level support to...

Role: Surveillance Field Engineer - Electrical (Hinkley Point C) Position: Contract Location: Hinkley Point C, Somerset Duration: 12 Months Rolling Day Rate: 379 p/d PAYE + 36 days annual leave 515.14 p/d Umbrella Major Infrastructure Power Generation Long-Term Project Rullion are recruiting for an experienced Field Engineer - Electrical to join the Surveillance Team on the Hinkley Point C project - one of the largest and most technically complex construction programmes in Europe. This role sits at the sharp end of site delivery. You'll be in the field, ensuring electrical works are installed safely, compliantly and in line with contractual and quality expectations. If you've worked on large-scale industrial builds - power stations, water treatment works, pharmaceuticals, petrochemical, chemical plants, biomass, EFW or other regulated infrastructure - this is your opportunity to bring that experience onto a nuclear new build....

Service & Maintenance Engineer - Level 2 Are you a skilled engineer looking for a dynamic role in the rental energy sector? We are seeking a proactive Service & Maintenance Engineer (Level 2) to join our Power Rental team. You will play a key role in delivering high-quality electric power projects across the UK and Ireland. The Role As an Individual Contributor within our Operations department, you will ensure our rental equipment-including generators, load-banks, and transformer's in peak condition to support our diverse client base. Key Responsibilities: Maintenance & Inspection (20%): Inspect, service, and maintain rental equipment (generators, fuel tanks, load-banks, etc.) according to strict schedules. Site Leadership (20%): Lead site installations, commissioning, and decommissioning of rental solutions, including the synchronisation of multiple generators. Technical Support (25%): Perform in-depth repairs and troubleshoot complex technical...