Senior/Principal Cyber Security Researcher

Company: Raytheon
Apply for the Senior/Principal Cyber Security Researcher
Location: Gloucester
Job Description:

Job Descriptionhackajob is collaborating with Raytheon to connect them with exceptional professionals for this role.Raytheon UK has a perm opportunity for a Principal Cyber Researcher to join our Cyber Research Group (CRG).As a Principal Cyber Researcher, you will conduct cutting-edge research and development across multiple cyber domains. You’ll drive technical investigations, design rapid prototypes, and uncover emerging threats and vulnerabilities. In addition to hands-on research, you’ll be involved in day-to-day CRG operations, help shape the team’s long-term strategy, and support business development and bidding activities.You will be based at our Gloucester site, working in a hybrid capacity. Due to the interesting work you will do, you must be eligible and willing to gain SC and enhanced DV clearance.

Key Responsibilities

  • Conduct deep-dive research in vulnerability discovery, reverse engineering, and embedded systems

Design and build rapid prototypes to validate novel cyber capabilities and conceptsAnalyse network protocols and system behaviours to identify security weaknessesCollaborate with multidisciplinary teams to deliver research outcomes and technical solutionsDocument methodologies, findings, and recommendations for internal and external stakeholdersManage small research teams, track progress, and report to customersContribute to CRG’s strategic planning and operational managementSupport 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 problemsExperience in rapid prototyping using technologies such as Raspberry Pi, Arduino, and virtualised environmentsProven track record of managing research projects from concept through delivery

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.

Posted: July 9th, 2026