{"id":467055,"url":"https://alion.io/job/mantech-cybersecurity-software-engineer","title":"Cybersecurity Software Engineer","company":{"id":179527,"name":"ManTech","domain":"mantech.com","url":"https://alion.io/company/mantech","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Avature","truth_index":{"grade":"A","score":100,"open_postings":85,"ghost_share":0,"stale_share":0,"repost_share":0.024,"time_to_fill_p50_days":12,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Security","role_family":"Security","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":141500,"max":236000,"currency":"USD","period":"year","gross":null,"usd_annual":236000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"PKI","optional":false},{"name":"TCP/IP","optional":false},{"name":"C++","optional":true},{"name":"Java","optional":true},{"name":"Kali Linux","optional":true},{"name":"Linux","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"closed","first_seen_at":"2026-09-06T12:16:21Z","employer_posted_date":"2026-09-09","last_verified_at":"2026-10-29T03:54:43Z","board_verified":false,"closed_at":"2026-10-29T03:54:43Z","days_open":52,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":52},"description":"Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!\nMANTECH seeks a motivated, career- and customer-oriented Cybersecurity Software Engineer to join our team in Linthicum Heights, MD.\nThis role protects secure systems by providing expert engineering support for the Cryptographic Solutions Program and MPO's network security products.\nResponsibilities include but are not limited to:\nProvide advanced engineering, cybersecurity analysis, and cryptographic solutions to enhance the security posture, testing, and certification of products deployed across the the Intelligence Community (IC).\nDrive innovation in data protection, high-assurance encryption, and secure computing architecture to safeguard modern national security infrastructure.\nPerform software design and functional programming while authoring robust unit, integration, and system-level test suites.\nDevelop software using multi-paradigm programming languages, functional design principles, and standard data-interchange and markup formats.\nBuild and maintain applications across cross-platform desktop and server environments using modern IDEs, containerization, deployment pipelines, and network tools.\nApply deep domain knowledge of low-level network protocols (TCP/IP, OSI model) and cryptographic principles (e.g., PKI, symmetric/asymmetric encryption, hashing) to software development tasks.\nMinimum Qualifications:\nBachelor’s degree in Computer Science, Computer Engineering, or a related discipline. Four (4) years of additional software engineering experience may be substituted for a bachelor’s degree.\nFourteen (14) years of experience as a Software Engineer on programs/contracts of similar scope, type, and technical complexity.\nPreferred Qualifications:\nExperience with low-level programming languages (C, C++, Rust).\nProficient in rapid prototyping and scripting with Python or Java.\nFamiliarity with penetration testing tools and security-focused OSs (e.g., Kali Linux).\nExperience with high-grade network encryptors and cryptographic key distribution systems.\nBackground supporting Intelligence Community (IC) or DoD cryptographic engineering initiatives.\nClearance Requirements:\nActive TS/SCI with Polygraph.\nPhysical Requirements:\nMust be able to remain in a stationary position 50%.\nNeeds to occasionally move about inside the office to access file cabinets, office machinery, etc.\nFrequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.\nThe projected compensation range for this position is $141,500.00-$236,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.\nMANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.\nIf you need a reasonable accommodation to apply for a position with MANTECH, please email us at  and provide your name and contact information.","description_format":"text","description_chars":4117,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Health insurance","Life insurance","Wellness"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Information Security","Artificial Intelligence","Government"],"lifecycle":[{"event":"open","at":"2026-09-06T12:16:21Z"},{"event":"close","at":"2026-10-29T03:54:43Z"}],"visa":[],"liveness":null,"pay":{"stated_usd_annual":236000,"is_top_pay":true},"html_url":"https://alion.io/job/mantech-cybersecurity-software-engineer","json_url":"https://alion.io/job/mantech-cybersecurity-software-engineer.json","meta":{"generated_at":"2026-10-29T04:15:01Z","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":6525,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":179527},"rest":"https://alion.io/mcp/rest/get_company?id=179527"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmantech-cybersecurity-software-engineer"},{"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%2Fmantech-cybersecurity-software-engineer"},{"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%2Fmantech-cybersecurity-software-engineer"},{"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/mantech-cybersecurity-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmantech-cybersecurity-software-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":467055}},{"tool":"search_jobs","arguments":{"company":"mantech.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":467055},"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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