{"id":3101906,"url":"https://alion.io/job/parsons-senior-ms-software-developer","title":"Senior M&S Software Developer","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":81,"open_postings":361,"ghost_share":0,"stale_share":0.975,"repost_share":0.003,"time_to_fill_p50_days":17,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Huntsville, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":134000,"max_usd":249000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3667},"experience_years_min":17,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"Digital Twin","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Windows","optional":false},{"name":"Agile","optional":true}],"status":"live","first_seen_at":"2026-07-20T00:00:00Z","employer_posted_date":"2026-07-20","last_verified_at":"2026-11-05T08:50:17Z","board_verified":true,"closed_at":null,"days_open":108,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":108},"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 an exceptionally talented Sr. M&S Software Developer to join our team! In this role, you will be a key member of a collaborative development team of engineers and software developers, working together to assess systems and develop medium-to-high fidelity software models of real-world threat weapon systems that accurately capture the capabilities and limitations of both emerging and fielded systems.\n What You'll Be Doing:\nDevelop and enhance software digital twins using C++ and Python on Windows and Linux platforms, including:\nModeling advanced threat systems such as Surface-to-Air Missile Systems (SAMs), radar platforms, and missile seekers\n\nDeveloping high-fidelity propagation effects, including terrain masking, refraction, and over-the-horizon propagation\n\nCreating tracking filters and signal processing chains for radar and electronic warfare systems\n\nSupport simulation studies and integrate models into larger mission-level simulations.\n\nDevelop algorithms and techniques for Sensors, Missiles, and C4, including active/passive detection, clutter modeling, electronic attack, waveform selection, adaptive beamforming, and weapon/target assignment optimization.\n\nUnderstand and develop engineering designs provided by the customer, collaborating with the team to create software models at the required fidelity to meet customer goals.\n\nDefine requirements and design solutions for modeling and simulation (M&S) software.\n\nPlan, develop, and execute automated unit, system, and system-of-systems tests.\n\nParticipate in technical discussions to support both near-term and long-term planning.\n\nCollaborate within a team environment and mentor junior and mid-level software developers.\n\nRequired Clearance:\nMust be a U.S. Citizen and possess an active Secret clearance.\n\nMust be willing and able to obtain and maintain a TS/SCI clearance.\n\nWhat Required Skills You'll Bring:\nMaster’s degree in Computer Engineering, Computer Science, Electrical Engineering, or equivalent with 12+ years of experience, OR\n\nBachelor’s degree with 17+ years of experience.\n\nStrong programming skills in C++ and Python.\n\nExperience developing products with regular release cycles.\n\nExcellent written and oral communication skills, with the ability to collaborate with technical teams and classified customers.\n\nExperience in DevOps or DevSecOps environments.\n\nWhat Desired Skills You'll Bring:\nSoftware development experience in a DevOps or DevSecOps environment.\n\nExperience working in an AGILE software development team.\n\nExperience mentoring junior team members.\n\nExperience designing, developing, or operating code for distributed processing environments.\n\nExperience working with environmental datasets, Command-and-Control, and RF propagation.\n\n Security Clearance Requirement:\nAn active Secret security clearance is required to apply, however, the selected candidate must be able to obtain a Top Secret SCI clearance prior to the start date.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: $148,300.00 - $266,900.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons 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":4986,"description_truncated":false,"requirements":{"experience_years_min":17,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Flexible schedule","Growth opportunities","Life insurance"],"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":"2026-10-22T17:44:26Z"}],"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":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.259,"p_room":0.28,"age_days":108,"expected_fill_days":17,"reasons":["conf:5","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/parsons-senior-ms-software-developer","json_url":"https://alion.io/job/parsons-senior-ms-software-developer.json","meta":{"generated_at":"2026-11-05T14:01:39Z","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":18024,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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-senior-ms-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%2Fparsons-senior-ms-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%2Fparsons-senior-ms-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/parsons-senior-ms-software-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparsons-senior-ms-software-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3101906}},{"tool":"search_jobs","arguments":{"company":"parsons.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3101906},"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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