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Communications Systems Engineer (UAS)

United Kingdom, Bristol · Job Posted January 20, 2026
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Job Description

We are looking for a Communications Systems Engineer to design, integrate, and validate the vital data links that keep our Unmanned Aircraft Systems (UAS) connected. This is a systems-focused role where you will own the end-to-end communication architecture—ensuring seamless command and control (C2) and high-bandwidth telemetry across diverse and contested environments. You will be the bridge between high-level mission requirements and hardware implementation, selecting the right mix of RF, Satcom, and Military Bearers to ensure mission success. From defining link budgets to conducting "on-platform" interference testing, you will ensure our aircraft are never out of reach.

Job Responsibility

  • Architecture Design: Define the communication system architecture, selecting and sizing hardware (transceivers, antennas, modems) to meet range, throughput, and SWaP-C constraints
  • Systems Integration: Lead the integration of Line-of-Sight (LOS) and Beyond-Line-of-Sight (BLOS/Satcom) systems onto UAS platforms, managing complex interfaces and protocol stacks
  • Link Budget Analysis: Perform rigorous link budget calculations for various frequencies to guarantee robust connectivity in all flight profiles
  • Military Comms & Encryption: Oversee the implementation of secure military waveforms and cryptographic equipment, ensuring compliance with UK defense standards
  • Protocol Mastery: Configure and optimize communication protocols and networking stacks (TCP/IP, MAVLink) for low-latency, high-reliability aerial links
  • Verification & Test: Design and execute bench-top HIL (Hardware-in-the-Loop) tests, ground range trials, and flight test campaigns to validate link performance and EMI/EMC compatibility

Requirements

  • 5+ years in communications systems engineering, ideally within the aerospace, defense, or autonomous systems sector
  • Deep knowledge of RF principles, antenna theory, and modulation schemes (OFDM, FHSS, etc.)
  • Hands-on experience with SDRs (Software Defined Radios), Satcom terminals, and tactical data links
  • Familiarity with military communication standards (e.g., Link 16, Bowman) or commercial standards (LTE/5G, DVB-S2) is highly desirable
  • Degree in Electrical/Electronic Engineering, Telecommunications, or a related technical field
  • This role requires UK SC (Security Check) clearance
  • Systems Mindset: The ability to see beyond the "black box" to understand how comms impacts flight safety and mission data quality
  • Problem Solver: A "hands-on" approach to troubleshooting RF interference or network dropouts in complex, real-world environments
  • Collaborative: Able to work closely with Avionics, Software, and Airframe engineers to find the optimal placement for antennas and comms hardware
  • Adaptability: A proactive desire to embrace new processes and drive continuous improvement in engineering methods
  • Agility: Comfortable leading in a fast-paced development environment where requirements and threats can evolve rapidly

What we offer

  • An excellent work environment and an opportunity to make a difference
  • Salary Compatible with the level of proven experience

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