{"id":2603926,"url":"https://alion.io/job/trexsolutionsllc-cno-software-developer","title":"CNO Software Developer","company":{"id":3101182,"name":"Trexsolutionsllc","domain":"trexsolutionsllc.com","url":"https://alion.io/company/trexsolutionsllc","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"C","score":62,"open_postings":35,"ghost_share":0.629,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Fort Meade, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":150000,"max":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"Perl","optional":false},{"name":"Python","optional":false},{"name":"Assembly","optional":true},{"name":"BGP","optional":true},{"name":"Binary Ninja","optional":true},{"name":"Ghidra","optional":true},{"name":"IDA Pro","optional":true},{"name":"OllyDbg","optional":true},{"name":"TCP/IP","optional":true},{"name":"WinDbg","optional":true}],"status":"live","first_seen_at":"2025-10-10T16:39:28Z","employer_posted_date":"2026-01-02","last_verified_at":"2026-10-16T02:48:33Z","board_verified":true,"closed_at":null,"days_open":370,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":370},"description":"T-Rex is looking for a talented CNO Software Developer to work on a program in the Ft. Meade area in support of the Intelligence Community.\nResponsibilities:\nThis Position Is An Onsite Role\n Experienced CNO Developers at T-Rex Solutions analyze systems to understand how they work and how they behave when they break. Candidates must be able to play both sides of the fence, both developing and defeating new and advanced security techniques. Projects are undertaken in small teams with close coordination with customers. All our engineers write code, but many of our engineers spend as much time taking systems apart as building new ones. A typical day can involve studying disassembly or writing Python to audit a piece of C++ code. May be opportunities to lead small teams of developers and/or researchers. Role Type:\nTypically requires a Bachelor's degree and four (4) years' experience or minimum eight (8) years experience\nDemonstrated experience programming in Assembly, C, C++, Java, Perl, or Python\nActive and transferable U.S. government issued TS/SCI with polygraph security clearance is required prior to start date.\nU.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.\nDesired Skills: 3 or more of the following desired skills\nUnderstanding of OS Internals (i.e. Windo)\nExperience with Vulnerability Research\nExperience reading or writing assembly (x86, x64, ARM, PPC, MIPS, SPARC, 68k, or others)\nExperience developing embedded systems\nUnderstanding of network protocols (TCP/IP stacks, wire-level protocols, RF communications, BGP, routing protocols, or others).\nUnderstanding of exploit mitigations such as DEP and ASLR\nExperience using reverse engineering tools such as IDA Pro, HexRays, Ghidra, Binary Ninja, or objdump.\nExperience using debuggers such as gdb, WinDbg, OllyDbg\nExperience with BDI/JTAG\nExperience with modern C++ development, such as RAII, C++11 and C++14.\nExperience building and using tools to find, exploit, and productize vulnerabilities in complex software systems\nT-Rex Overview\nEstablished in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.\nT-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.\nT-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.\nIn compliance with pay transparency guidelines, the annual base salary range for this position is $150,000 - $250,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as market and business considerations when extending an offer.\nT-Rex offers a diverse and collaborative work environment, exciting opportunities for professional growth, and generous benefits, including: PTO available to use immediately upon joining (prorated based on start date), paid parental leave, individual and family health, vision, and dental benefits, annual budget for training, professional development and tuition reimbursement, and a 401(k) plan with company match fully vested after 60 days of employment among other benefits.","description_format":"text","description_chars":4567,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity","Parental leave","Professional development"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-15T08:59:01Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.131,"p_room":0.28,"age_days":370,"expected_fill_days":24,"reasons":["conf:2","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":{"stated_usd_annual":250000,"is_top_pay":true},"html_url":"https://alion.io/job/trexsolutionsllc-cno-software-developer","json_url":"https://alion.io/job/trexsolutionsllc-cno-software-developer.json","meta":{"generated_at":"2026-10-16T06:42:11Z","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":4497,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":3101182},"rest":"https://alion.io/mcp/rest/get_company?id=3101182"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftrexsolutionsllc-cno-software-developer"},{"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%2Ftrexsolutionsllc-cno-software-developer"},{"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%2Ftrexsolutionsllc-cno-software-developer"},{"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/trexsolutionsllc-cno-software-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftrexsolutionsllc-cno-software-developer"}]}