Cybersecurity Engineer RF

Job Summary

Role Summary: We're looking for a Cybersecurity Engineer with hands-on RF expertise to secure and stress-test wireless and radio-frequency communication links including drone/UAS command-and-control (C2) channels, SDR-based systems, and cellular protocol stacks. You'll work across signal analysis, protocol-level security testing, and link hardening for platforms used in defence and critical-infrastructure contexts. Note: This is an implementation-focused engineering role (not pure research); you'll be expected to build test rigs, run real attacks against RF links in a lab environment, and deliver hardening recommendations that get shipped.

Responsibilities

• Perform security assessments of RF communication links, including drone/UAS C2 channels and GCS (ground control station) links

• Build and operate SDR-based test setups (HackRF, USRP, RTL-SDR) using GNU Radio for signal capture, analysis, and attack simulation

• Analyze and test cellular protocol stacks (GSM/LTE/5G) for vulnerabilities, including work with tools such as OsmocomBB / gr-gsm

• Evaluate and implement RF link hardening measures frequency hopping schemes, jamming/spoofing detection, key exchange protocols

• Conduct signal processing and decoding work (e.g., Viterbi decoding) to support protocol-level analysis

• Perform red-team / adversarial testing against wireless and RF systems, and document findings with clear remediation guidance

• Write scripts and tooling in Python (with DSP libraries such as NumPy/SciPy) to automate testing and analysis workflows

• Collaborate with drone platform and embedded teams (DJI, ArduPilot, PX4) on OTA update security and platform hardening

• Produce technical documentation suitable for defence customers and internal engineering review

  Requirements

• Requirement: 35 years of experience in cybersecurity, RF/wireless security, or signal processing engineering

• Hands-on experience with SDR hardware (HackRF, USRP, or RTL-SDR) and GNU Radio

• Working knowledge of GSM/LTE/5G protocol stacks and associated security weaknesses

• Practical RF signal analysis skills capture, decode, and interpret radio signals

• Proficiency in Python for scripting and analysis; familiarity with DSP libraries (NumPy, SciPy) a strong plus

• Understanding of frequency hopping schemes and jamming/spoofing detection techniques

• Experience with, or strong conceptual grounding in, red team / adversarial security testing methodology

• Good to have: Exposure to drone/UAS platforms (DJI, ArduPilot, PX4) or ground control software (QGroundControl, Mission Planner)

• Familiarity with key exchange protocols and C2 link security/hardening

• Background in SIGINT/COMINT concepts

• Exposure to defence procurement or DRDO/MoD project environments

• C/C++ in addition to Python

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.