{"id":56340,"url":"https://alion.io/job/leidos-sr-software-developer","title":"Sr. Software Developer","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":78,"open_postings":241,"ghost_share":0.004,"stale_share":0.855,"repost_share":0.008,"time_to_fill_p50_days":27,"computed_at":"2026-10-22T06:10:10Z"}},"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":["Gaithersburg, 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":"C#","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"Java","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"Angular","optional":true},{"name":"Ansible","optional":true},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Azure DevOps","optional":true},{"name":"Docker","optional":true},{"name":"ElasticSearch","optional":true},{"name":"GitLab CI","optional":true},{"name":"JavaScript","optional":true},{"name":"Jenkins","optional":true},{"name":"Kubernetes","optional":true},{"name":"RabbitMQ","optional":true},{"name":"React.js","optional":true},{"name":"Redis","optional":true},{"name":"Terraform","optional":true},{"name":"TypeScript","optional":true},{"name":"Vue.js","optional":true}],"status":"live","first_seen_at":"2026-08-13T00:00:00Z","employer_posted_date":"2026-08-13","last_verified_at":"2026-10-22T02:56:46Z","board_verified":true,"closed_at":null,"days_open":70,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":70},"description":"What if the software you developed directly enabled some of the nation's most critical missions? As a Senior Software Developer, you'll do more than write exceptional code, you'll help build innovative, secure, and scalable solutions that support Intelligence Community operations. If you're passionate about modern software engineering, enjoy collaborating in Agile teams, and thrive on solving complex technical challenges, Leidos wants to hear from you.\nOn the Maru Program, you’ll join a high-performing team where your ideas are valued, your technical expertise is trusted, and your work has a tangible impact. Working alongside software engineers, architects, DevSecOps engineers, cybersecurity professionals, and mission stakeholders, you'll develop next-generation applications that deliver mission-critical capabilities in a fast-paced Agile environment.\nThis is your opportunity to build cutting-edge software while contributing to work that truly matters.\nWhat You'll Do\nAs a Senior Software Developer, you'll play a key role in designing, developing, testing, and deploying secure, scalable applications that support enterprise and mission operations.\nPlease note Gaithersburg, MD is the program’s primary work location.\nClearance Level Required:\nActive Top Secret/SCI with the ability to successfully pass a Polygraph examination.\nPrimary Responsibilities:\nDesign, develop, test, deploy, and maintain enterprise software applications using modern development practices.\nCollaborate with Product Owners, Scrum Masters, architects, and fellow developers to deliver high-quality software in Agile sprints.\nParticipate in sprint planning, backlog refinement, daily stand-ups, sprint reviews, and retrospectives.\nDevelop clean, maintainable, and well-documented code following secure coding standards and best practices.\nDesign and implement RESTful APIs, microservices, and distributed application architectures.\nPerform code reviews and mentor junior developers to promote engineering excellence and knowledge sharing.\nTroubleshoot complex application issues and perform root cause analysis to improve system reliability and performance.\nDevelop automated unit, integration, and end-to-end tests to ensure software quality.\nCollaborate with DevSecOps teams to implement CI/CD pipelines and automated deployment processes.\nOptimize application performance, scalability, and security across enterprise environments.\nParticipate in architecture discussions and contribute to technical roadmaps and modernization initiatives.\nSupport production deployments and resolve issues in mission-critical environments\nRequired Qualifications:\nUS citizenship is required per contract.\nBachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience.\n8+ years of professional software development experience.\nStrong proficiency in one or more object-oriented programming languages such as:Java\nC#\nPython\nC++\n\nExperience developing web-based applications and enterprise software solutions.\nExperience designing and consuming REST APIs.\nExperience working with relational and/or NoSQL databases.\nStrong understanding of object-oriented design principles and software design patterns.\nExperience using Git or other distributed version control systems.\nExperience working within Agile Scrum or SAFe development environments.\nExcellent analytical, debugging, and problem-solving skills.\nStrong written and verbal communication skills.\nPreferred Qualifications:\nExperience developing cloud-native applications in AWS, Azure, or other cloud platforms.\nExperience with containerization technologies such as Docker and Kubernetes.\nExperience building microservices architectures.\nFamiliarity with DevSecOps practices and CI/CD tools including Jenkins, GitLab CI, or Azure DevOps.\nExperience with Infrastructure as Code tools such as Terraform or Ansible.\nKnowledge of message brokers such as Kafka or RabbitMQ.\nExperience with front-end frameworks such as React, Angular, or Vue.js.\nFamiliarity with Elasticsearch, Redis, or other enterprise technologies.\nExperience with secure software development lifecycle (SSDLC) practices.\nSecurity+ certification or other DoD 8570/8140 compliant certification.\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:\nAugust 6, 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":5380,"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"],"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":"2026-08-13T00:00:00Z"}],"visa":[{"country":"US","licensed_sponsor":true,"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":"2026-10-15T11:24:14+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":11,"band":"cold","label":"Long shot","p_open":1,"p_active":0.4,"p_room":0.28,"age_days":70,"expected_fill_days":27,"reasons":["conf:3","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-22T06:10:10Z"},"pay":{"stated_usd_annual":195050,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-sr-software-developer","json_url":"https://alion.io/job/leidos-sr-software-developer.json","meta":{"generated_at":"2026-10-22T15:20:52Z","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":15048,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":7791},"rest":"https://alion.io/mcp/rest/get_company?id=7791"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fleidos-sr-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%2Fleidos-sr-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%2Fleidos-sr-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/leidos-sr-software-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-sr-software-developer"}]}