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Selected candidates will participate in the entire software development lifecycle including participation in the design, development, deployment and implementation of software products throughout all phases of the software development lifecycle. The candidates will be part of the development team operating in a dynamic, fast-paced environment. Excellent written and verbal communication skills are required. The selected candidates will be required to develop software in a variety of software development languages and environments.\nQualifications\nB.S. in Computer Science, Engineering, Information Technology or closely related\nActive TS/SCI security clearance required\nQualified candidates must have strong software engineering backgrounds with the following skills and expertise that are highly desired:\nObject-Oriented (OO) Programming skills with modern development languages\nAgile software development practices and tools (e.g., Scrum, Jira)\nModern cloud-computing software and tools including distributed computing platforms (IaaS, PaaS, SaaS)\nMicro-services, container technologies (Docker, Kubernetes)\nModern data architectures and tools: Python, MATLAB, IDL, Java, JavaScript / Typescript, NodeJS, C++\nFrameworks: Angular, Spring Boot, Vue, QT, React\nDatabase modeling: OpenSearch Dashboards\nAlgorithm development, database design, UI/UX\nContinuous Integration / Continuous Delivery (CI/CD) (Jenkins, GitLab CI)\nTest-Driven Development Methodologies (JUnit)\nWeb and SOA technologies, visualization technologies, image processing, database and/or geospatial (GIS) technologies\nExperience with all phases of the software development life cycle including agile development processes, tools, and methodologies\nAbility to work independently and in a team environment\nStrong problem-solving and critical thinking skill","description_format":"text","description_chars":2043,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-03-06T19:33:15Z"},{"event":"open","at":"2026-09-25T21:27:00Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.243,"p_room":0.28,"age_days":223,"expected_fill_days":54,"reasons":["conf:0","stale_co","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/nextgenfs-principal-software-engineer","json_url":"https://alion.io/job/nextgenfs-principal-software-engineer.json","meta":{"generated_at":"2026-10-16T12:00:17Z","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":11105,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":7117},"rest":"https://alion.io/mcp/rest/get_company?id=7117"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnextgenfs-principal-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%2Fnextgenfs-principal-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%2Fnextgenfs-principal-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/nextgenfs-principal-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnextgenfs-principal-software-engineer"}]}