{"id":773736,"url":"https://alion.io/job/aristotle-senior-full-stack-developer","title":"Senior Full-Stack Developer","company":{"id":669535,"name":"Aristotle","domain":"aristotle.com","url":"https://alion.io/company/aristotle-5","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"C","score":67,"open_postings":11,"ghost_share":0.545,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-03T05:54:40Z"}},"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":["Washington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":130000,"max":170000,"currency":"USD","period":"year","gross":null,"usd_annual":170000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Angular","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Machine Learning","optional":false},{"name":"MS SQL","optional":false},{"name":"NLP","optional":false},{"name":"Rest API","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2025-11-24T00:00:00Z","employer_posted_date":"2025-11-24","last_verified_at":"2026-11-04T01:31:55Z","board_verified":true,"closed_at":null,"days_open":345,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":344},"description":"We are seeking a Senior Full-Stack Developer with a strong background in building and architecting complex, data-driven systems. In this role, you’ll design and deliver modern applications, APIs, and services that process large volumes of structured and unstructured data. Experience with AI/ML techniques such as machine learning pipelines, natural language processing, or large-scale text analysis is highly essential and will help shape the next generation of our technology.\nKey Responsibilities\nDesign, develop, and test applications using Microsoft .NET, C#, ASP.NET, MS SQL Server, and front-end frameworks such as Angular or similar.\nBuild and maintain REST-based APIs and services capable of handling scalable, high-throughput data flows.\nIntegrate and deliver code incorporating emerging technologies, with emphasis on AI/ML frameworks, NLP toolkits, and cloud-based data processing.\nImplement solutions for ingesting, transforming, and analyzing large bodies of text and data.\nContribute to architectural decisions, including microservices and distributed systems design.\nCreate and configure CI/CD pipelines for seamless integration and delivery.\nProvide production support for applications and services, including legacy environments.\nDocument systems and processes for continuity and scalability.\nPartner with stakeholders to review requirements and contribute to functional and technical specifications.\nMentor teammates, lead code reviews, and introduce best practices in development.\nSalary Range: $130k-$170k per year\nRequirements\nBachelor’s or Master’s degree in Computer Science, Engineering, or a related field.\n7+ years of experience building and maintaining enterprise-grade web applications using modern languages and frameworks (e.g., C#/.NET Core, TypeScript/Node, React) with Azure cloud services preferred.\nHands-on experience implementing AI/ML and NLP technologies (e.g., classification, clustering, summarization) in production applications, with familiarity in model training, back-testing, regression testing, and monitoring.\nStrong knowledge of database design, query optimization, and building scalable APIs and services.\nStrong UI/UX and workflow management skills.\nProficiency in front-end frameworks such as Angular (or comparable).\nUnderstanding of scalability and performance best practices, including rate-limiting, caching, distributed systems, and automated testing frameworks.\nExcellent problem-solving and communication skills, with the ability to translate complex technical solutions into clear business value.\nBenefits\nAll positions are Full-Time, with competitive compensation, medical benefits, paid vacation, 401k plan and stock options. Casual dress code and a non-corporate atmosphere make this a fun place to work and learn in a team environment. Please visit our website at www.aristotle.com.","description_format":"text","description_chars":2847,"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":false,"languages":[]},"benefits":["401k plan","Stock options"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Data Providers & Datasets","Digital Government"],"lifecycle":[{"event":"open","at":"2026-09-11T22:21:32Z"},{"event":"open","at":"2026-09-25T21:53:03Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.145,"p_room":0.28,"age_days":344,"expected_fill_days":29,"reasons":["conf:2","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-11-03T05:54:40Z"},"pay":{"stated_usd_annual":170000,"is_top_pay":false},"html_url":"https://alion.io/job/aristotle-senior-full-stack-developer","json_url":"https://alion.io/job/aristotle-senior-full-stack-developer.json","meta":{"generated_at":"2026-11-04T04:07:59Z","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":6410,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":669535},"rest":"https://alion.io/mcp/rest/get_company?id=669535"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Faristotle-senior-full-stack-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%2Faristotle-senior-full-stack-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%2Faristotle-senior-full-stack-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/aristotle-senior-full-stack-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Faristotle-senior-full-stack-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":773736}},{"tool":"search_jobs","arguments":{"company":"aristotle.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":773736},"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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