An innovative and well-funded fabless semiconductor company, specialising in cutting-edge RF front-end technologies, is seeking a Senior RF Engineer to join their team. This is a technically hands-on role with some customer interaction, ideal for an RF expert who wants to make a real impact in a high-growth environment. As a Senior RF Engineer, you will work closely with global OEMs and internal product development teams to support the integration and technical validation of novel tunable RF components. While not a traditional application support role, this position requires strong communication skills and the ability to collaborate directly with customers, guiding them through design-in, evaluation, and integration efforts. Key Responsibilities: Act as a technical interface between the engineering team and global customers, supporting the evaluation and integration of tunable RF components into next-generation devices. Provide in-depth technical support on RF system-level performance, antenna matching, and RF chain optimisation. Lead customer discussions during design-in and debug phases; develop demo systems and support the creation of supporting technical documentation and data packs. Contribute to internal product development discussions by providing customer insight and technical feedback from field use. Assist in competitive benchmarking and help shape future product direction based on real-world usage and market demands. Regular international travel to customer sites (as required) to provide hands-on engineering support and build strong technical relationships. Required Experience: Experience in RF design, testing, and system integration, ideally within the mobile or wireless device industry. Solid understanding of antenna systems, impedance matching, and general RF signal chain behaviour. Previous exposure to working with large global OEMs or Tier 1 customers in a technical capacity. Familiarity with 3GPP standards, mobile platforms, and common RF test and measurement techniques. Ideal Candidate: Technically hands-on and deeply curious about RF innovation. Confident communicator with experience in customer-facing technical roles (e.g. field support, systems engineering, or integration). Strong problem-solving mindset, with a proactive and resilient attitude. Comfortable navigating the challenges of an early-stage, fast-evolving environment. What’s on Offer: Competitive salary and benefits package, including pension contributions. Company share options. 25 days holiday national holidays. Flexible working hours with hybrid/remote working options. Weekly team lunches (Cambridge location only). Opportunity to work with a world-class engineering team pushing the boundaries of RF front-end innovation. This role offers a rare chance to join a growing company at the forefront of RF technology development. If you're a Senior RF Engineer looking to play a key role in the advancement of next-gen wireless solutions and you're motivated by solving real engineering challenges, please reach out to Zac Taylor at IC Resources.