Senior RF Engineer

Enterprise Control Systems (ECS), a leading division within SPX Technologies, specialises in high-performance RF technology solutions that serve global defence, law enforcement, and homeland security markets. Based in Wappenham, Northamptonshire, ECS is renowned for designing advanced RF data links, counter-drone solutions, and secure communications technology that enable secure, resilient, and robust connectivity in critical, high-stakes environments. At ECS, we blend innovation with impact, helping clients succeed in complex missions across the defence, aerospace, and security sectors. We are seeking a Senior RF Design Engineer to join a small but skilled team of five, consisting of embedded, product, mechanical, and RF engineers. You will support both New Product Introduction (NPI) and Sustaining Engineering for ECS's specialised products. This role is ideal for a self-sufficient professional capable of managing and verifying their own work with minimal supervision. A background in military applications isn’t required, though commercial experience in RF or related fields is essential. The position focuses on general RF circuitry design but also offers the opportunity to engage with advanced technology, including up and down converters, power supplies, and non-linear design and simulations. This is a full-time permanent position that is being offered on a hybrid basis, with a minimum requirement of 3 days in the office. Key Responsibilities: RF Circuit Design: Engage in system architecture, RF simulation, schematic capture, and PCB layout, focusing on general RF circuits but with options to work on high-power amplifiers, converters, and power supplies. Product Development: Lead and support the full product lifecycle from requirements gathering, design, testing, and validation. Technical Support and Troubleshooting: Act as a technical authority on RF issues, collaborating with colleagues across engineering disciplines to ensure optimal product performance. Independent Work: You will primarily work solo, managing your own projects and independently troubleshooting and testing your designs. Collaboration and Leadership: Mentor junior engineers and contribute to the department’s growth and process improvements by documenting and sharing technical insights. What We’re Looking For: Experience: Radio Frequency design or related roles within a commercial environment. Technical Expertise: Proficiency in PCB design software and RF simulation tools; experience with RF amplifiers, filters, antennas, and EMC; and solid understanding of analogue and digital electronics. Preferred Skills: Familiarity with up and down converters, power supply designs, and advanced test equipment such as network analyzers and signal spectrum analyzers. Work Style: Ability to work independently, taking full ownership of tasks and projects with minimal oversight. Education: Bachelor’s/Master’s degree in Engineering or related field, or equivalent work experience. British citizenship or eligibility for Security Clearance (SC) is required. Why Choose ECS? Innovation and Impact: Be at the forefront of secure RF technology solutions for critical national security and defence applications. Professional Growth: Access cutting-edge resources and work alongside a passionate, high-performing team in a collaborative environment. Global Opportunities: As part of SPX Technologies, ECS offers the stability and resources of a global organisation, combined with the agility of a specialised engineering team. Bring your expertise to ECS, where your skills will shape pioneering RF technologies that make a difference. Apply now to be part of a team that thrives on innovation and excellence.

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