{"id":1139527,"url":"https://alion.io/job/rohirrim-senior-full-stack-engineer","title":"Senior Full Stack Engineer","company":{"id":688217,"name":"ROHIRRIM","domain":"rohirrim.ai","url":"https://alion.io/company/rohirrim","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":null},"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":["McLean, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":129000,"max_usd":239000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":2304},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"Anthropic","optional":false},{"name":"Azure","optional":false},{"name":"Azure DevOps","optional":false},{"name":"JavaScript","optional":false},{"name":"LLM","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"OpenAI","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"RAG","optional":false},{"name":"React.js","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Vue.js","optional":false},{"name":"Edge AI","optional":true}],"status":"live","first_seen_at":"2026-09-10T15:24:25Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-09-28T12:28:53Z","board_verified":true,"closed_at":null,"days_open":18,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":18},"description":"Are you passionate about pushing the boundaries of technology in the Gen AI space? Rohirrim is seeking a SeniorFull Stack Engineer to mentor engineers, provide technical direction, and drive the development of cutting-edge applications. If you thrive in a fast-paced environment and enjoy leading by example while staying hands-on with coding, we want to hear from you!\nWhy Join Rohirrim?\nAt Rohirrim, we're at the forefront of innovation in the Gen AI space. Joining our team means being part of a dynamic environment where your leadership and expertise make a tangible impact on our products and team growth.\nSenior Full Stack Engineer\nLocation: Hybrid - 3 days/week onsite in McLean, VA\nAbout Us\nRohirrim is pioneering the future of enterprise AI with Rohan, our patented, domain-aware generative AI platform. We help Fortune 1000 companies, aerospace and defense organizations, and government agencies automate complex processes like RFP creation and knowledge management.\nWe're a fast-growing, mission-driven team building cutting-edge AI products that reshape how enterprises work.\nRole Overview\nWe are seeking a Senior Full Stack Engineer (50% backend / 50% frontend, or someone who is flexible with the split) to help design, build, and scale our generative AI-powered enterprise web applications. You'll play a key role in architecting services, ensuring performance and reliability, and contributing to frontend features that deliver great user experiences. This is a hands-on, senior-level role where you'll collaborate closely with product managers and UI/UX designers.\nResponsibilities\nArchitect, design, and build scalable backend systems with a focus on reliability, performance, and maintainability.\nDevelop APIs and services in Nest.js/Node.js, integrating with databases, LLM providers, and external systems.\nBuild and integrate features powered by generative AI, including LLM orchestration, prompt design, and retrieval-augmented workflows within Rohan.\nContribute to frontend development in Angular/TypeScript, ensuring seamless user experiences.\nWrite efficient, maintainable SQL queries and design database schemas for application features.\nCollaborate with cross-functional teams to deliver secure and scalable AI-driven solutions.\nEnsure high code quality via testing, code reviews, and best practices.\nParticipate in system design discussions and help set technical direction, including how AI/LLM capabilities are architected into the platform.\nQualifications\n5+ years of professional experience as a Full Stack Engineer.\nStrong experience with TypeScript/JavaScript.\nHands-on experience with Nest.js/Node.js.\nHands-on experience with a JavaScript UI framework (Angular/React/Vue).\nStrong SQL skills (schema design, query optimization).\nBasic knowledge of Azure DevOps (pipelines, workflows).\nHands-on experience integrating with LLM providers/APIs (e.g., OpenAI, Anthropic, Azure OpenAI) in a production application.\nPractical experience with prompt engineering and retrieval-augmented generation (RAG) architectures.","description_format":"text","description_chars":3045,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","LLM & Generative AI","Supply Chain"],"lifecycle":[{"event":"open","at":"2026-09-23T10:08:49Z"}],"liveness":{"score":69,"band":"ok","label":"Likely open","p_open":1,"p_active":0.768,"p_room":0.9,"age_days":17,"expected_fill_days":31,"reasons":["conf:18","win:mid"],"computed_at":"2026-09-28T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/rohirrim-senior-full-stack-engineer","json_url":"https://alion.io/job/rohirrim-senior-full-stack-engineer.json","meta":{"generated_at":"2026-09-29T04:42:45Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4471,"day_limit":5000,"remaining_today":529,"minute_limit":60,"resets_at":"2026-09-30T00:00:00Z"}}}