{"id":924661,"url":"https://alion.io/job/serko-senior-software-engineer-agentic-ai-applications","title":"Senior Software Engineer - Agentic AI Applications","company":{"id":377,"name":"Serko","domain":"serko.com","url":"https://alion.io/company/serko","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":100,"open_postings":8,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":49,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":152000,"max":230000,"currency":"USD","period":"year","gross":null,"usd_annual":230000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GraphQL","optional":false},{"name":"LLM","optional":false},{"name":"Next.js","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false},{"name":"JavaScript","optional":true},{"name":"LangChain","optional":true},{"name":"LangGraph","optional":true},{"name":"RAG","optional":true}],"status":"live","first_seen_at":"2026-09-13T00:00:00Z","employer_posted_date":"2026-09-13","last_verified_at":"2026-11-05T10:56:39Z","board_verified":true,"closed_at":null,"days_open":53,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":53},"description":"At Serko, we believe something incredible happens when people come face-to-face. That’s why we’re on a mission to engineer a frictionless, next-generation business travel marketplace. We don’t just manage travel; we are leveraging advanced AI and cutting-edge tech to eliminate the complexity of global movement.\nWhen you join Serko, you join a global collective of passionate technologists who show up as their true selves to build world-class products. With established hubs across New Zealand, Australia, North America, India and China - your code and ideas will impact millions of corporate travelers worldwide.\nIf you're ready to challenge the status quo and build the future of travel tech, your next journey starts here.\nWe’re hiring a Senior Full Stack Engineer to own the end-to-end development of our next-gen AI products for candidates available in Washington or California states.\nRequirements\nYou'll bridge the gap between complex AI capabilities and beautiful user experiences, developing the customer-facing features, high-performance APIs, and reliable backend services that make intelligent, autonomous workflows reality.\nWhat You’ll Do\nBuild Meaningful Experiences: Partner closely with a cross-functional team of designers, product managers, and ML engineers to shape and deliver thoughtful, high-quality AI-powered user experiences.\nBridge Frontend & Backend: Co-create and refine full-stack features, utilizing React/Next.js for intuitive frontends and Python or Node.js to power robust, reliable backend services.\nBring AI to Life: Integrate LLM APIs and innovative agentic frameworks into fluid product features-crafting interactive streaming UIs, clear tool-call results, and helpful agent status displays.\nDesign Accessible Connections: Cultivate and maintain clean REST and/or GraphQL APIs that seamlessly support user data, smooth session management, and helpful agent interactions.\nChampion Quality Together: Write thoughtful unit, integration, and end-to-end tests to ensure product excellence, and engage in constructive, supportive code reviews that help the whole team grow.\nSupport Team Resilience: Contribute to a shared, collaborative on-call rotation, working as a team to support production systems, document thoughtful learnings, and keep our platform running smoothly.\n Shape Our Technical Future: Share your unique perspective in architectural discussions and contribute technical proposals that help our systems scale sustainably.\nWhat you'll bring\nA Passion for Full-Stack & AI: Deep, hands-on experience building full-stack applications, with a special focus on native AI stack development.\nCore Technical Comfort: A strong foundational comfort with TypeScript (React, Next.js) on the front end, paired with Python and SQL on the backend.\nAI Integration Experience: Experience successfully bringing AI to life in production, specifically by integrating with LLM APIs or crafting intuitive AI-powered features.\nThoughtful System Design: A clear understanding of RESTful API design, database management (such as PostgreSQL or Redis), and cloud ecosystems.\nAn Eye for Real-Time UX: Familiarity with creating smooth, real-time user experiences using streaming responses (like SSE or WebSockets) so our AI feels fluid and responsive.\nDevOps Awareness: Comfort collaborating on continuous integration and delivery (CI/CD), containerization (Docker), and smooth cloud deployments.\nEmpathetic Communication: Highly developed communication skills and a natural ability to listen, share ideas, and partner effectively within a cross-functional team.\nNice to Have\nIf you have experience in any of these areas, that’s wonderful! If not, we are excited to support your learning on the job:\nFamiliarity with agentic frameworks like LangChain or LangGraph.\nExposure to building vector search or RAG-based capabilities.\nA background or interest in crafting interactive interfaces like chat, copilots, or workflow automation tools.\nBenefits\nAt Serko, we aim to create a place where people can come and do their best work. This means you’ll be operating in an environment with great tools and support to enable you to perform at the highest level of your abilities, producing high-quality and delivering innovative and efficient results. Our people are fully engaged, continuously improving, and encouraged to make an impact.\nSome of the benefits of working at Serko are:\nA competitive base pay\nMedical Benefits\nDiscretionary incentive plan based on individual and company performance\nFocus on development: Access to a learning & development platform and opportunity for you to own your career pathways\nFlexible work policy\nThe pay range is between $152,000 - $230,000 USD as a base salary offering annually.\nA Note on Work Authorization: Applicants must be authorized to work for any employer in the U.S. At this time, we are unable to provide sponsorship or assume sponsorship for employment visa status (e.g., H-1B visa status).","description_format":"text","description_chars":4956,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Business Travel","Travel Technology","Procurement & Spend Management"],"lifecycle":[{"event":"open","at":"2026-09-15T05:25:31Z"}],"visa":[],"liveness":{"score":50,"band":"ok","label":"Likely open","p_open":1,"p_active":0.903,"p_room":0.55,"age_days":53,"expected_fill_days":49,"reasons":["conf:2","velocity","win:tail"],"computed_at":"2026-11-05T05:54:30Z"},"pay":{"stated_usd_annual":230000,"is_top_pay":true},"html_url":"https://alion.io/job/serko-senior-software-engineer-agentic-ai-applications","json_url":"https://alion.io/job/serko-senior-software-engineer-agentic-ai-applications.json","meta":{"generated_at":"2026-11-05T13:25:22Z","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":17393,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":377},"rest":"https://alion.io/mcp/rest/get_company?id=377"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fserko-senior-software-engineer-agentic-ai-applications"},{"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%2Fserko-senior-software-engineer-agentic-ai-applications"},{"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%2Fserko-senior-software-engineer-agentic-ai-applications"},{"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/serko-senior-software-engineer-agentic-ai-applications\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fserko-senior-software-engineer-agentic-ai-applications"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":924661}},{"tool":"search_jobs","arguments":{"company":"serko.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":924661},"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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