{"id":955558,"url":"https://alion.io/job/bigbear-ai-holdings-inc-full-stack-software-engineer","title":"Full Stack Software Engineer","company":{"id":34812,"name":"BigBear.ai","domain":"bigbear.ai","url":"https://alion.io/company/bigbear-ai-holdings-inc","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"iCIMS","truth_index":{"grade":"A","score":100,"open_postings":5,"ghost_share":0,"stale_share":0.2,"repost_share":0,"time_to_fill_p50_days":16,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Columbia, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":129000,"max_usd":240000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3667},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Grafana","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"LangChain","optional":false},{"name":"LiteLLM","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"vLLM","optional":false}],"status":"live","first_seen_at":"2026-09-16T05:21:16Z","employer_posted_date":"2026-09-19","last_verified_at":"2026-11-03T14:00:27Z","board_verified":true,"closed_at":null,"days_open":48,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":48},"description":"Overview\nBigBear.ai is seeking a Full Stack Software Engineer to help build the next generation of AI infrastructure that will drive innovation across the customer organization. In this role, you will support the AI infrastructure team by building and maintaining the platform that serves as the foundation for the customer’s AI capabilities. You will focus on inference services while supporting the broader ecosystem of AI-enabled applications. This position is ideal for experienced engineers who can independently design, implement, and operate scalable AI infrastructure components. If you are passionate about cutting-edge AI technologies and building robust systems, this is the opportunity for you.\nWhat you will do\nInfrastructure Design: Design, implement, and optimize infrastructure for AI model inference at scale\n AI Services Development: Support the development and maintenance of production AI services and applications, including retrieval augmented generation (RAG), autonomous agents, and emerging technologies\nProblem Solving: Navigate ambiguity and define solutions for underspecified systems and requirements\nTechnology Adoption: Drive adoption of new technologies and practices across engineering teams\nMonitoring & Observability: Implement monitoring, logging, and observability solutions for AI services\n Automation: Automate infrastructure provisioning and configuration using Infrastructure as Code (IaC) principles\nReliability: Ensure high availability, reliability, and performance of AI platform components\nSecurity: Contribute to security best practices for AI systems and data\nMentorship: Provide technical guidance and informal mentorship to junior engineers\nWhat you should have\nClearance: Must possess and maintain an active TS/SCI w/Polygraph\nEducation & Experience:8 years of experience with a B.S. in a technical discipline or 4 additional years of experience in place of a degree\n\n Technical Expertise:proficiency in Java and Python. \nProven experience building and maintaining production systems at scale\nExperience with high-volume web application architecture and performance optimization\nStrong background in systems integration across diverse technologies and platforms\nHands-on experience with cloud engineering in AWS\nProficiency with Kubernetes administration and deployment patterns\nStrong Python programming skills\nExperience implementing observability solutions (APM, OpenTelemetry, Grafana, Prometheus)\nFamiliarity with CI/CD pipelines and DevOps practices\nStrong change management and organizational influence skills\nAbility to thrive in ambiguous environments and create structure where needed\nExcellent communication and collaboration skills\n\nWhat we'd like you to have\n AI Inference Expertise: Experience with AI inference serving technologies (e.g., vLLM, LiteLLM)\n Agentic Frameworks: Previous experience with agentic frameworks (e.g., LangChain)\nVector Databases: Knowledge of vector databases and embedding systems\n Distributed Systems: Experience with high-performance computing or distributed systems\nAbout BigBear.ai\nBigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity. Customers and partners rely on Bigbear.ai’s predictive analytics capabilities in highly complex, distributed, mission-based operating environments. Headquartered in McLean, Virginia, BigBear.ai is a public company traded on the NYSE under the symbol BBAI. For more information, visit https://bigbear.ai/ and follow BigBear.ai on LinkedIn: @BigBear.ai and X: @BigBearai.\nBigBear.ai is an Equal opportunity employer all protected groups, including protected veterans and individuals with disabilities.","description_format":"text","description_chars":3726,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Cybersecurity","Decision Intelligence"],"lifecycle":[{"event":"open","at":"2026-09-16T05:21:16Z"}],"visa":[],"liveness":{"score":22,"band":"cold","label":"Long shot","p_open":1,"p_active":0.634,"p_room":0.35,"age_days":48,"expected_fill_days":16,"reasons":["conf:1","velocity","win:tail"],"computed_at":"2026-11-03T05:54:40Z"},"pay":null,"html_url":"https://alion.io/job/bigbear-ai-holdings-inc-full-stack-software-engineer","json_url":"https://alion.io/job/bigbear-ai-holdings-inc-full-stack-software-engineer.json","meta":{"generated_at":"2026-11-03T15:23:09Z","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":21417,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"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":34812},"rest":"https://alion.io/mcp/rest/get_company?id=34812"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbigbear-ai-holdings-inc-full-stack-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%2Fbigbear-ai-holdings-inc-full-stack-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%2Fbigbear-ai-holdings-inc-full-stack-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/bigbear-ai-holdings-inc-full-stack-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbigbear-ai-holdings-inc-full-stack-software-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":955558}},{"tool":"search_jobs","arguments":{"company":"bigbear.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":955558},"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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