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Radio Frequency Engineer

Helsing· Physical Products
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Hybrid (London; Oxford)Full-timePosted 2mo ago

About the role

RF Engineer role focused on designing and integrating RF systems for defence platforms operating in contested electromagnetic environments, from antenna/front-end design to link budgets and EW resilience, with hands-on hardware testing and field support.

Responsibilities

  • Design and specify RF front-ends, antennas, and associated hardware, reasoning through gain, bandwidth, efficiency, size, and cost trade-offs for a given platform and mission
  • Own link budget analysis for communications, telemetry, and/or seeker/radar systems, translating range, data rate, and reliability requirements into a defensible RF architecture
  • Work on resilience to a contested electromagnetic environment, jamming, spoofing, and interference and design systems that degrade gracefully rather than fail outright
  • Integrate RF systems into the wider electrical architecture, managing grounding, shielding, and EMC considerations so RF performance survives contact with the rest of the platform
  • Get hands-on with RF test equipment, spectrum analysers, VNAs, signal generators to characterise, debug, and validate real hardware, not just simulate it
  • Work closely with electronics, software, and systems engineers to ensure RF subsystems integrate cleanly with power, structure, and the rest of the avionics stack
  • Support field testing of RF and communications systems, including range trials and EW/interference testing, and feed real-world results back into the design
  • Produce clear documentation, link budgets, test reports, interface definitions, that the rest of the team and our customers can actually rely on

Qualifications

  • Have designed and integrated RF systems in a professional engineering context, ideally within aerospace, defence, or another demanding, safety-critical domain
  • Understand RF fundamentals deeply enough to reason from first principles, propagation, antenna theory, link budgets, modulation schemes, noise, and interference
  • Have hands-on experience with RF test and measurement equipment, and are comfortable debugging real hardware, not just simulation output
  • Have worked on systems that need to survive a contested or degraded RF environment, or can reason confidently about what that requires even without direct experience
  • Can interpret complex datasheets and specifications for RF components (amplifiers, filters, mixers, antennas) and translate them into sound design decisions
  • Collaborate effectively across disciplines, electronics, software, systems and communicate clearly in written and spoken English

Skills

Required:RF design and integrationLink budget analysisElectromagnetic compatibility and grounding/shieldingRF testing and measurementCross-disciplinary collaboration

Benefits

  • Competitive salary
  • VSOP options
  • Relocation support: up to €2,500 and 4 weeks temporary accommodation
  • Learning: €500/£450 yearly allowance
  • Health & wellness: gym membership and mental health support (Nilo.health)
  • Social: regular company events and monthly social allowances
  • Enhanced parental leave: 22 weeks fully paid for primary caregivers & 6 weeks for secondary caregivers
  • Family support: 5 days of paid family emergency leave, 100% remote work option during pregnancy and phased return to work
  • Hands-on onboarding program (Infraduction) to build tooling and learn stack across teams
Last updated Aug 11, 2026. Interested? Apply on the company site.

About Helsing

Helsing | Artificial intelligence to protect our democracies

AI for electronic warfareAI-enabled precision mass and autonomous systemsAutonomous air dominanceMass defence manufacturingRecce strike softwareUnderwater autonomous massliquid-ai-recruiting-target
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