Overview

Join to apply for the Principal Cyber Researcher role at Raytheon UK

Raytheon UK’s Cyber Research Group (CRG) is looking for a Principal Cyber Researcher to conduct cutting-edge research and development across multiple cyber domains. As Principal Cyber Researcher, you’ll drive technical investigations, design rapid prototypes, and uncover emerging threats and vulnerabilities. In addition to hands-on research, our Principal Cyber Researcher will be involved in day-to-day CRG operations, help shape the team’s long-term strategy, and support business development and bidding activities. To be eligible for this role you must hold active enhanced DV clearance. You will be based at our Gloucester site or our customer site on a hybrid basis (approx. 1-2 days a week).

Responsibilities

• Conduct deep-dive research in vulnerability discovery, reverse engineering, and embedded systems
• Design and build rapid prototypes to validate novel cyber capabilities and concepts
• Analyse network protocols and system behaviours to identify security weaknesses
• Collaborate with multidisciplinary teams to deliver research outcomes and technical solutions
• Document methodologies, findings, and recommendations for internal and external stakeholders
• Manage small research teams, track progress, and report to customers
• Contribute to CRG’s strategic planning and operational management
• Support business development efforts, including proposal writing and technical briefings

Essential Skills And Experience

• Proficiency in programming languages such as C, C++, or Python
• Strong working knowledge of Linux-based systems, including command-line tools and system configuration
• Excellent communication skills, both written and verbal
• Solid understanding of networking concepts and protocols (e.g. TCP/IP, UDP, DNS, HTTP, ICMP)
• Demonstrated analytical and problem-solving capabilities, with a methodical and inquisitive approach to technical problems
• Experience in rapid prototyping using technologies such as Raspberry Pi, Arduino, and virtualised environments
• Proven track record of managing research projects from concept through delivery

Desirable Experience

• Hardware prototyping, PCB design and microcontroller programming
• Experience using penetration testing or red team tools
• Reverse engineering using Ghidra, IDA Pro, or Binary Ninja
• Vulnerability research, including exploit development and mitigation bypass techniques
• Embedded software development on ARM, AVR, PowerPC or MIPS platforms
• Experience with Radio Frequency (RF) systems, Software Defined Radios (SDRs), 2G/4G/5G, including tools like GNU Radio, Osmocom, srsRAN or USRP
• Network engineering experience in home lab or professional environments

Benefits And Work Culture

• Competitive salary
• 37hr working week, with an early finish Friday - start your weekend early
• 25 days holiday (increasing by up to 2 days with service), plus public holidays, opportunity to buy / sell / roll over up to 5 days, and up to 5 days volunteering annually
• Contributory Pension Scheme (up to 10.5% company contribution)
• Company bonus scheme (discretionary)
• 6 times salary ‘Life Assurance’ with pension
• Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work amongst others
• Enhanced sick pay
• Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave

About Raytheon UK

Raytheon UK is a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence. Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. We provide a collaborative environment, abundant opportunities for professional development, and a profound sense of purpose in what we do.

RTX Raytheon UK is part of the RTX organisation. Headquartered in Arlington, Virginia, USA, but with over 180,000 employees globally across every continent, RTX provides advanced systems and services for commercial, military and government customers worldwide. RTX supports thousands of jobs across the UK economy and offers opportunities to many suppliers.

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.

Privacy Policy and Terms: Click on this link to read the Policy and Terms

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• Defense and Space Manufacturing