{"id":4089424,"url":"https://alion.io/job/leidos-software-engineer-senior-software-engineer-tssci-polygraph-required","title":"Software Engineer / Senior Software Engineer / TS/SCI Polygraph Required","company":{"id":7791,"name":"Leidos","domain":"leidos.com","url":"https://alion.io/company/leidos","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":77,"open_postings":330,"ghost_share":0.003,"stale_share":0.888,"repost_share":0.012,"time_to_fill_p50_days":28,"computed_at":"2026-11-11T05:49:22Z"}},"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":["Bethesda, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":107900,"max":195050,"currency":"USD","period":"year","gross":null,"usd_annual":195050},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bash","optional":false},{"name":"Confluence","optional":false},{"name":"GCP","optional":false},{"name":"GitHub","optional":false},{"name":"Hibernate","optional":false},{"name":"JavaScript","optional":false},{"name":"Jenkins","optional":false},{"name":"JUnit","optional":false},{"name":"Python","optional":false},{"name":"Scrum","optional":false},{"name":"Spring Boot","optional":false},{"name":"Unix","optional":false},{"name":"Java","optional":true}],"status":"live","first_seen_at":"2026-11-10T00:00:00Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-11T19:44:50Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Software Engineer / Senior Software Engineer\nLocation: Bethesda, Maryland\nClearance and Citizenship: MUST Possess a TS/SCI Polygraph and MUST be a US Citizen as required by this customer. No Exceptions.\nLeidos has an exciting opportunity for all different levels of Software Engineers / Senior Software Engineers to join our Intel Security Sector's Analysis Solutions Business Area in Bethesda, Maryland. In this description, we are highlighting two of these levels.\nOur talented team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management, delivering innovative technical solutions that support critical national security missions. This is an excellent opportunity for software engineering professionals at multiple experience levels to apply their expertise in software development, cloud technologies, and DevOps practices while collaborating with talented teams to develop and sustain mission-critical systems.\nLocated just outside Washington, D.C., Bethesda, Maryland offers an ideal combination of exciting career opportunities and quality of life. With vibrant neighborhoods, highly regarded schools, outstanding restaurants and entertainment, beautiful parks, and convenient access to Washington, D.C., and the surrounding National Capital Region, Bethesda is a great place to advance your career.\nAt Leidos, we offer competitive benefits, including Paid Time Off, 11 paid holidays, a 401(k) with a 6% company match and immediate vesting, flexible schedules, discounted stock purchase plans, technical upskilling, education and training support, paid parental leave, and much more.\nJoin Leidos and put your technical expertise to work supporting missions that make a difference in National Security!\nJob Summary\nWe are seeking talented Software Engineers and Senior Software Engineers to support the design, development, implementation, testing, operations, and maintenance of mission-critical systems, software, and cloud environments.\nWorking within a DevOps framework, successful candidates will contribute to major project deliverables throughout the software development lifecycle, including scope definition and work estimation, architecture and design, coding, and unit testing.\nCandidates will be considered for the appropriate level based on their qualifications and relevant experience.\nPrimary Responsibilities\nSoftware Development: Participate in and/or direct software programming initiatives using Java, JavaScript, Python, Spring Boot, and Hibernate.\nSoftware Testing and Validation: Develop software system validation and testing methods using JUnit and Katalon, integrating custom-developed solutions to support automated deployment technologies.\nCloud-Based Development: Develop, prototype, and deploy solutions within Commercial Cloud Solutions, leveraging infrastructure platform services.\nAgile Collaboration: Coordinate closely with team members, Product Owners, and Scrum Masters to ensure User Story alignment and implementation in accordance with customer use cases.\nDevOps and Automation: Support the Agile software development lifecycle following SAFe practices, utilizing GitHub, Jenkins, Unix Bash scripting, JIRA, and Confluence.\nInfrastructure Analysis: Analyze infrastructure requirements through proof-of-concept development, performance testing, and end-to-end testing, and coordinate infrastructure needs driven by developed software to meet customer mission requirements.\nContinuous Improvement: Identify and apply software development best practices and standard operating procedures to create innovative solutions that address customer technical needs.\nSecurity Clearance Requirement - All candidates MUST possess an active TS/SCI with polygraph security clearance.\nRequired Skills and Qualifications\nCandidates must demonstrate the following qualifications at the level appropriate to the position:\n Agile Development: Strong experience (T3) or significant experience (T4) with common Agile practices, service-oriented environments, and software development practices.\n Software Development: Strong experience (T3) or significant experience (T4) with Java, Spring, C2S, and the software development lifecycle, including delivering solutions within DevOps toolsets and practices.\nSoftware Testing and Scripting: Direct experience utilizing software testing and performance tools, such as JUnit and Katalon, and scripting languages, including Python and Bash, within an Agile development environment.\n Cloud Technologies: Strong experience (T3) or significant experience (T4) developing solutions in commercial cloud platforms (e.g., AWS, Google Cloud, Azure) and leveraging cloud data services (e.g., S3, RDS, EFS).\n Version Control and Tracking: Strong experience (T3) or significant experience (T4) utilizing version control systems and issue/problem tracking systems.\nEducation and Experience\nSoftware Engineer\nBachelor's degree with 4 or more years of relevant experience; or\nMaster's degree with 2 or more years of relevant experience.\nAdditional years of experience may be substituted in lieu of a degree.\nSenior Software Engineer\nBachelor's degree with 8 or more years of relevant experience; or\nMaster's degree with 6 or more years of relevant experience.\nPreferred Qualifications\nExperience with structured analysis and design methodologies.\nUnderstanding of the customer's system development policies.\nAt Leidos, the opportunities are boundless. We challenge our employees with meaningful assignments that encourage professional and personal growth. We believe that investing in your career strengthens our ability to deliver innovative solutions for our customers.\nTake the next step in your career with Leidos. Apply today!\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nOriginal Posting:\nNovember 10, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.\nPay Range:\nPay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.","description_format":"text","description_chars":6903,"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","Flexible schedule","Parental leave"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-11-11T19:44:50Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"H-1B filings in 12 months: 50 · green card filings: 24","filings_12m":50,"filings_prev_12m":58,"green_card_filings_12m":24,"median_offered_wage_usd":124257,"route":null,"cap_exempt":false,"checked_at":"2026-11-11T07:38:50+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":24}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":28,"reasons":["conf:1","win:early","comp:brand"],"computed_at":"2026-11-11T21:03:39Z"},"pay":{"stated_usd_annual":195050,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-software-engineer-senior-software-engineer-tssci-polygraph-required","json_url":"https://alion.io/job/leidos-software-engineer-senior-software-engineer-tssci-polygraph-required.json","meta":{"generated_at":"2026-11-11T21:03:39Z","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":41198,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":7791},"rest":"https://alion.io/mcp/rest/get_company?id=7791"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fleidos-software-engineer-senior-software-engineer-tssci-polygraph-required"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fleidos-software-engineer-senior-software-engineer-tssci-polygraph-required"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fleidos-software-engineer-senior-software-engineer-tssci-polygraph-required"},{"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/leidos-software-engineer-senior-software-engineer-tssci-polygraph-required\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-software-engineer-senior-software-engineer-tssci-polygraph-required"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4089424}},{"tool":"search_jobs","arguments":{"company":"leidos.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4089424},"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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