{"id":731536,"url":"https://alion.io/job/leidos-mid-level-software-engineer","title":"Mid-Level Software Engineer","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":80,"open_postings":173,"ghost_share":0.006,"stale_share":0.798,"repost_share":0.006,"time_to_fill_p50_days":27,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Saint Louis, United States","Chantilly, United States","Tucson, United States","Englewood, United States","United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":87100,"max":157450,"currency":"USD","period":"year","gross":null,"usd_annual":157450},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Confluence","optional":false},{"name":"Django","optional":false},{"name":"Docker","optional":false},{"name":"Flask","optional":false},{"name":"Git","optional":false},{"name":"GitLab CI","optional":false},{"name":"Go","optional":false},{"name":"JavaScript","optional":false},{"name":"Jenkins","optional":false},{"name":"JQuery","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"MySQL","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"Svelte","optional":false},{"name":"Vue.js","optional":false},{"name":"Windows","optional":false},{"name":"Amazon EC2","optional":true},{"name":"Amazon S3","optional":true},{"name":"Ansible","optional":true},{"name":"CloudFormation","optional":true},{"name":"ElasticSearch","optional":true},{"name":"GeoServer","optional":true},{"name":"Java","optional":true},{"name":"OpenSearch","optional":true},{"name":"Oracle","optional":true},{"name":"PostGIS","optional":true},{"name":"Terraform","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-09-08T00:00:00Z","employer_posted_date":"2026-09-08","last_verified_at":"2026-10-17T06:43:52Z","board_verified":true,"closed_at":null,"days_open":39,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":39},"description":"Are you ready to build software that makes a real-world impact? Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you’ll design, develop, and deliver modern software solutions that enable critical national security missions while working alongside some of the industry’s brightest engineers, architects, and mission experts.\nAs a Full Stack Engineer, you’ll contribute across the entire software development lifecycle, from crafting intuitive user interfaces to building scalable backend services and integrating secure, cloud-native solutions. Working within a collaborative Agile environment, you’ll help deliver high-quality capabilities through iterative development, continuous integration, and DevSecOps best practices.\nIn this role, you will work on cross-functional development teams to build and maintain microservices, APIs, and web-based applications that support GEOINT data access, visualization, and dissemination. You will contribute to the full software lifecycle and will have the opportunity to work directly with users, cloud engineers, and mission stakeholders.\nIf you’re passionate about solving complex technical challenges, learning emerging technologies, and developing software that directly supports mission success, this is an exciting opportunity to grow your career while making a meaningful difference.\nPosition may be performed in the following locations below. Please note Gaithersburg, MD is the program’s primary work location.\nGaithersburg, MD\n\nAlexandria, VA\n\nChantilly, VA\n\nEnglewood, CO\n\nSt. Louis, MO\n\nTucson, AZ\n\nClearance Level Required:\nActive Top Secret/SCI with the ability to successfully pass a Polygraph examination.\nPrimary Responsibilities:\nDesign, develop, test, and deploy software solutions that support our customer’s GEOINT mission.\n\nParticipate in agile development sprints and contribute to daily stand-ups, sprint planning, and retrospectives.\n\nBuild and maintain secure, containerized applications using technologies such as Docker, Kubernetes, and AWS.\n\nDevelop RESTful APIs and user-facing interfaces with modern tools (e.g., React, Node.js, Flask or Sprint Boot).\n\nCollaborate with mission users and product managers to refine requirements and improve user experience.\n\nSupport DevSecOps pipelines and ensure code meets security and accreditation standards.\n\nParticipate in code reviews and mentor junior developers as needed.\n\nResolve various tasks as prioritized by the team product owner.\n\nBasic Qualifications:\nUS citizenship is required per contract. \n\nBachelor's degree in Computer Science, Software Engineering, or related field and 4-8 years of prior relevant experience or Master’s with 2-6 years of prior relevant experience.\n\nActive Top Secret/SCI with the ability to successfully pass a Polygraph examination.\n\nProficiency with the following technologies:\nWeb: HTML, CSS, JSON, Ajax, and REST APIs\n\nObject-oriented Programming: Python, Java, or JavaScript\n\nAdvanced Programming: Go\n\nFront-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte\n\nCloud Development: AWS, Azure, or similar cloud platforms\n\nRelational Database: MySQL, PostgreSQL, or SQL Server\n\nOperating System: Windows, Linux\n\nVersion Control System: Git\n\nDeep understanding of modern software design patterns and coding standards.\n\nExperience architecting, developing, and delivering complex software systems into production.\n\nExperience with CI/CD tools (GitLab CI, Jenkins) and agile collaboration tools (JIRA, Confluence).\n\nFamiliarity with cloud environments such as AWS (C2S or GovCloud) and containerization technologies (Docker, Kubernetes)\n\nUnderstanding of secure coding practices and government system accreditation processes (e.g., RMF, STIGs)\n\nStrong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques.\n\nPreferred Qualifications:\nFrontend Web Development: UI/UX\n\nNoSQL Database: OpenSearch/Elasticsearch.\n\nCloud Exposure:\nMulti-cloud architectures: AWS, IBM, Google, Azure, and Oracle.\n\nSpecific AWS Services: S3, SQS, SNS, EC2, CloudFormation and RDS.\n\nExperience working on a customer contract or in the Intelligence Community (IC).\n\nFamiliarity with geospatial tools and standards:\nGeoServer\n\nPostGIS\n\nOGC APIs\n\nESRI ArcGIS\n\nExposure to Infrastructure-as-Code (Terraform, Ansible)\n\nCertifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar.\n\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:\nSeptember 8, 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 $87,100.00 - $157,450.00The 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":5609,"description_truncated":false,"requirements":{"experience_years_min":4,"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":"2026-09-11T09:51:26Z"}],"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":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.443,"p_room":0.55,"age_days":39,"expected_fill_days":27,"reasons":["conf:1","stale_co","velocity","win:tail","comp:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":157450,"is_top_pay":false},"html_url":"https://alion.io/job/leidos-mid-level-software-engineer","json_url":"https://alion.io/job/leidos-mid-level-software-engineer.json","meta":{"generated_at":"2026-10-17T07:35:37Z","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":10270,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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-mid-level-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%2Fleidos-mid-level-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%2Fleidos-mid-level-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/leidos-mid-level-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-mid-level-software-engineer"}]}