{"id":3145792,"url":"https://alion.io/job/rtx-principal-cyber-researcher","title":"Principal Cyber Researcher","company":{"id":1162,"name":"RTX","domain":"rtx.com","url":"https://alion.io/company/raytheon-technologies","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":87,"open_postings":500,"ghost_share":0,"stale_share":0.7,"repost_share":0.026,"time_to_fill_p50_days":8,"computed_at":"2026-10-25T05:49:26Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Gloucester, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":98000,"max_usd":180000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":25},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"DNS","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"TCP/IP","optional":false},{"name":"Assembly","optional":true},{"name":"Binary Ninja","optional":true},{"name":"Ghidra","optional":true},{"name":"IDA Pro","optional":true},{"name":"Machine Learning","optional":true},{"name":"Red Teaming","optional":true}],"status":"live","first_seen_at":"2026-03-01T00:00:00Z","employer_posted_date":"2026-03-01","last_verified_at":"2026-10-25T04:52:25Z","board_verified":true,"closed_at":null,"days_open":238,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":238},"description":"Date Posted:\n2026-03-01Country:\nUnited KingdomLocation:\nGloucester, South GloucestershirePosition Role Type:\nHybridRaytheon UK has a perm opportunity for a Principal Cyber Researcher to join our Cyber Research Group (CRG).\nAs 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.\nYou 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.\nKey Responsibilities\nConduct deep-dive research in vulnerability discovery, reverse engineering, and embedded systems\n\nDesign and build rapid prototypes to validate novel cyber capabilities and concepts\n\nAnalyse network protocols and system behaviours to identify security weaknesses\n\nCollaborate with multidisciplinary teams to deliver research outcomes and technical solutions\n\nDocument methodologies, findings, and recommendations for internal and external stakeholders\n\nManage small research teams, track progress, and report to customers\n\nContribute to CRG’s strategic planning and operational management\n\nSupport business development efforts, including proposal writing and technical briefings\n\nEssential Skills and Experience\nProficiency in programming languages such as C, C++, or Python\n\nStrong working knowledge of Linux-based systems, including command-line tools and system configuration\n\nExcellent communication skills, both written and verbal\n\nSolid understanding of networking concepts and protocols (e.g. TCP/IP, UDP, DNS, HTTP, ICMP)\n\nDemonstrated analytical and problem-solving capabilities, with a methodical and inquisitive approach to technical problems\n\nExperience in rapid prototyping using technologies such as Raspberry Pi, Arduino, and virtualised environments\n\nProven track record of managing research projects from concept through delivery\n\nDesirable Skills and Experience\nHardware prototyping, PCB design and microcontroller programming.\n\nExperience using penetration testing or red team tools.\n\nReverse engineering using Ghidra, IDA Pro, or Binary Ninja.\n\nVulnerability research, including exploit development and mitigation bypass techniques.\n\nEmbedded software development on ARM, AVR, PowerPC or MIPS platforms.\n\nExperience with Radio Frequency (RF) systems, Software Defined Radios (SDRs), 2G/4G/5G, including tools like GNU Radio, Osmocom, srsRAN or USRP.\n\nNetwork engineering experience in home lab or professional environments.\n\nBenefits and Work Culture\n37hr working week with early finish Fridays - start your weekend early!\nAn informal, flexible working culture that is output focused\n25 days holiday + statutory public holidays, plus opportunity to buy and sell up to 5 days and up to 5 paid days volunteering\n10.5% company pension contribution with 6% employee contribution\nAnnual company bonus scheme (discretionary)\nPrivate Medical Insurance (grade dependent)\n6 times salary Life Assurance with pension\nFlexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work, amongst others\nEnhanced sick pay\nEnhanced family friendly policies including enhanced maternity, paternity & shared parental leave\nRaytheon UK\nYou will be based within the area of the business providing DevSecOps at scale, Artificial Intelligence, Machine Learning, cyber and geospatial intelligence capabilities to support the defence, intelligence and cyber sectors. Collaborating with customers and suppliers to deliver secure, mission critical systems using the latest technologies and innovations.\nWe take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence.\nJoining 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. Together, we are not just advancing technology; we're building a community committed to safeguarding a safer and more connected world.\nRTX \nRaytheon UK is a landed company and part of the wider 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 and comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon.\nSupporting over 35,000 jobs across 13 UK sites, RTX is helping to drive prosperity. Each year our work contributes over £2.7bn to the UK economy and offers a wealth of opportunities to 4,000 suppliers across England, Scotland, Wales and Northern Ireland. We’re investing in all corners of the country, supporting 29,040 jobs in England, 3,040 in Northern Ireland, 1,900 in Scotland and 1,600 in Wales.\n#LI-AS3 C&I\nRTX 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.\nPrivacy Policy and Terms:\nClick on this link to read the Policy and Terms","description_format":"text","description_chars":5701,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Health insurance","Parental leave","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Missiles","Air Defense","Defense Manufacturing","Avionics & Flight Control"],"lifecycle":[{"event":"open","at":"2026-10-23T10:10:01Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.187,"p_room":0.28,"age_days":238,"expected_fill_days":8,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-25T05:49:26Z"},"pay":null,"html_url":"https://alion.io/job/rtx-principal-cyber-researcher","json_url":"https://alion.io/job/rtx-principal-cyber-researcher.json","meta":{"generated_at":"2026-10-25T07:51:00Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":11100,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1162},"rest":"https://alion.io/mcp/rest/get_company?id=1162"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frtx-principal-cyber-researcher"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Frtx-principal-cyber-researcher"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Frtx-principal-cyber-researcher"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/rtx-principal-cyber-researcher\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frtx-principal-cyber-researcher"}]}