{"id":3032942,"url":"https://alion.io/job/parsons-principal-vulnerability-researcher-engineer-ts","title":"Principal Vulnerability Researcher Engineer (TS)","company":{"id":4937,"name":"Parsons","domain":"parsons.com","url":"https://alion.io/company/parsons","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":353,"ghost_share":0,"stale_share":0.98,"repost_share":0,"time_to_fill_p50_days":17,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Security","role_family":"Security","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":["Melbourne, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":125100,"max":225200,"currency":"USD","period":"year","gross":null,"usd_annual":225200},"salary_estimate":null,"experience_years_min":15,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Binary Ninja","optional":false},{"name":"C++","optional":false},{"name":"Ghidra","optional":false},{"name":"IDA Pro","optional":false},{"name":"Python","optional":false},{"name":"Assembly","optional":true},{"name":"Linux","optional":true},{"name":"QEMU","optional":true},{"name":"Windows","optional":true}],"status":"live","first_seen_at":"2026-09-23T00:00:00Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-11-03T19:09:20Z","board_verified":true,"closed_at":null,"days_open":41,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":41},"description":"In a world of possibilities, pursue one with endless opportunities. Imagine Next!At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.Job Description:\nParsons is seeking a Principal Vulnerability Research Engineer to join our team in support of advanced research and development contracts for the U.S. Government. You'll serve as a senior technical leader on a small, highly technical team performing vulnerability research and reverse engineering against complex embedded and cyber-physical systems. The role involves leading technically challenging research from initial target analysis through vulnerability discovery, exploit development, and integration into operational cyber capabilities while defining technical approaches and advancing the team's vulnerability research capabilities.\nAs a Senior Vulnerability Research Engineer, you'll serve as an experienced hands-on technical contributor while helping guide less experienced researchers through complex technical challenges. You'll have the opportunity to work across the full vulnerability research lifecycle, develop new tools and techniques, and contribute to technically challenging research efforts involving software, firmware, hardware, and communications interfaces.\nThis is an onsite position based at the Cromulence-Parsons office in the historic downtown of Melbourne, Florida, on Florida's Space Coast. Work will be performed in both classified and unclassified environments.\nWhat You'll Be Doing:\nLead vulnerability research / reverse engineering (VR/RE) efforts against complex embedded systems, including both hardware and software targets\nDevelop, test, and integrate advanced cyber tools, exploits, cyber effects, and supporting research capabilities\nDefine technical approaches for complex vulnerability research problems and guide research efforts from initial target analysis through successful capability development\nServe as a principal technical contributor while remaining deeply hands-on with reverse engineering, vulnerability discovery, exploit development, and tool development\nProvide technical leadership and direction to teams of vulnerability researchers working on large-scale or technically challenging cyber efforts\nMentor senior and junior researchers and help develop the technical capabilities of the broader research team\nIdentify and develop new vulnerability research methodologies, tools, automation, and emulation techniques that improve the team's ability to analyze complex targets\nWork directly with customers and technical stakeholders to understand challenging mission problems, evaluate technical feasibility, and develop effective research approaches\nWhat Qualifications You'll Bring:\nBachelor's degree in related technical field and 10+ years of professional related experience; Master's degree in related field will be considered in lieu of 4 years' experience\n10+ years of hands-on experience in vulnerability research, reverse engineering, exploit development, and/or cyber tool development\nExtensive experience with a decompiler/disassembler such as Ghidra (highly preferred), IDA Pro, or Binary Ninja\nDeep expertise analyzing one or more instruction set architectures, such as x86/x86-64, ARM/AArch64, or MIPS\nExtensive experience with modern exploitation techniques, tools, and methodologies\nExtensive experience analyzing and bypassing modern exploit mitigations such as DEP/NX, ASLR, stack protections, CFI, and platform-specific protections\nDemonstrated ability to independently lead complex vulnerability research efforts from initial target analysis through exploit or capability development\nDemonstrated ability to provide technical direction and mentorship to other vulnerability researchers\nStrong software development skills in languages such as C, C++, and Python\nWhat Desired Skills You'll Bring:\nU.S. Citizenship is required\n15+ years of experience in vulnerability research, reverse engineering, exploit development, and/or cyber tool development\nDeep experience reverse engineering embedded and Internet of Things (IoT) systems or cyber-physical devices such as Industrial Control Systems (ICS)\nExpertise with Windows Internals and/or Linux kernel-level programming\nExperience developing, modifying, or enhancing emulation systems such as QEMU to enable advanced vulnerability research techniques\nExperience developing custom emulation, instrumentation, fuzzing, symbolic execution, or dynamic analysis capabilities\nDeep knowledge of multiple processor architectures and operating system environments\nExperience with additional operating systems such as Android, iOS, and macOS\nAdvanced knowledge of networking protocols, protocol reverse engineering, and network-based exploitation\nExperience developing for Windows and/or Linux platforms\nExperience reverse engineering firmware, bootloaders, device drivers, kernels, and other low-level software components\nExperience analyzing hardware interfaces, peripherals, communications buses, and other components of embedded or cyber-physical systems\nDemonstrated history of developing new vulnerability research techniques, tools, methodologies, or technical approaches\nExperience serving as a technical lead on large, complex, or multi-researcher cyber efforts\n\nSecurity Clearance Requirement:\nAn active Top Secret clearance is required to apply\nMust be able to obtain and maintain SCI and/or SAP accesses\nSecurity Clearance Requirement:\nAn active Top Secret security clearance is required for this position.This position is part of our Federal Solutions team.The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.Salary Range: $125,100.00 - $225,200.00Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest-APPLY TODAY!Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.","description_format":"text","description_chars":7057,"description_truncated":false,"requirements":{"experience_years_min":15,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Growth opportunities"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["C4ISR","Civil & Structural Engineering","Homeland Security","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-21T20:46:33Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 1 · green card filings: 1","filings_12m":1,"filings_prev_12m":1,"green_card_filings_12m":1,"median_offered_wage_usd":167500,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":1}],"liveness":{"score":13,"band":"cold","label":"Long shot","p_open":1,"p_active":0.452,"p_room":0.28,"age_days":41,"expected_fill_days":17,"reasons":["conf:3","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-03T05:54:40Z"},"pay":{"stated_usd_annual":225200,"is_top_pay":true},"html_url":"https://alion.io/job/parsons-principal-vulnerability-researcher-engineer-ts","json_url":"https://alion.io/job/parsons-principal-vulnerability-researcher-engineer-ts.json","meta":{"generated_at":"2026-11-03T21:03:43Z","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":26,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"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":4937},"rest":"https://alion.io/mcp/rest/get_company?id=4937"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fparsons-principal-vulnerability-researcher-engineer-ts"},{"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%2Fparsons-principal-vulnerability-researcher-engineer-ts"},{"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%2Fparsons-principal-vulnerability-researcher-engineer-ts"},{"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/parsons-principal-vulnerability-researcher-engineer-ts\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparsons-principal-vulnerability-researcher-engineer-ts"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3032942}},{"tool":"search_jobs","arguments":{"company":"parsons.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3032942},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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