{"id":151009,"url":"https://alion.io/job/fever-senior-software-engineer-ai-agents-developer-platform","title":"Senior Software Engineer - AI Agents & Developer Platform","company":{"id":53827,"name":"Fever","domain":"feverup.com","url":"https://alion.io/company/feverup","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":87,"open_postings":272,"ghost_share":0,"stale_share":0.338,"repost_share":0,"time_to_fill_p50_days":66,"computed_at":"2026-10-26T05:57:25Z"}},"role":"AI/ML","role_family":"AI/ML","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":["Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":55000,"max_usd":115000,"period":"year","method":"role_seniority_country_cell","sample_n":11},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"CI/CD","optional":false},{"name":"Clean Architecture","optional":false},{"name":"Context Engineering","optional":false},{"name":"Go","optional":false},{"name":"LLM","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Multi-Agent Systems","optional":false},{"name":"Prompt Caching","optional":false},{"name":"RAG","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-08-21T12:06:18Z","employer_posted_date":"2026-10-19","last_verified_at":"2026-10-26T23:01:16Z","board_verified":true,"closed_at":null,"days_open":66,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":65},"description":"Hey there!\nWe’re Fever, the world’s leading tech platform for culture and live entertainment.\nOur mission? To democratize access to culture and entertainment. With our proprietary cutting-edge technology and data-driven approach, we’re revolutionizing the way people engage with live entertainment.\nEvery month, our platform inspires over 300 million people in +55 countries (and counting) to discover unforgettable experiences while also empowering event creators with our data and technology, helping them scale, innovate, and enhance their events to reach new audiences. \nOur results? We’ve teamed up with major industry leaders like Netflix, F.C. Barcelona, and Primavera Sound, presented international award-winning experiences, and are backed by several leading global investors! Impressive, right? \nTo achieve our mission, we are looking for bar-raisers with a hands-on mindset who are eager to help shape the future of entertainment!\nReady to be part of the experience? \nNow, let’s discuss this role and what you will do to help achieve Fever’s mission.\nAbout the role\nWe're building the team that defines how AI transforms Product Engineering at Fever. This is a backend engineering role first: you need strong software fundamentals to build systems that scale and hold up in production. The AI expertise builds on top of that foundation. You won't just use agents, you'll build the harnesses, evals, and infrastructure that make them ship reliable, high-quality output across the entire company.\nYou'll join the AI & DevEx team. Our mission is to raise the performance of Fever's whole Product Engineering organization, not just individual engineers, but entire squads (product, design, and engineering together) and everything that surrounds their work: CI/CD, observability, infrastructure, data, and how people communicate and coordinate. We look for the highest-leverage points in that chain and build AI-powered tools to improve them, always backed by measurement, not assumptions.\nWhat you'll work on\nAgentic harness: Build the skills, sub-agents, guardrails, and verification systems that make agents produce high-quality, trustworthy output, for engineering and beyond.\nKnowledge base: Build the shared knowledge substrate agents read from and write into, growing it from team-level to something that compounds across all of Fever.\nDelivery substrate: Own the cloud dev environments, CI runtime, and autonomous-delivery rails that turn a request into an environment, an agent run, and a reviewable pull request. You're responsible for how fast and reliably this works.\nAI across how squads work: Go beyond coding agents. Find where AI removes friction in planning, coordination, and communication across a squad's daily work.\n Measurement: Build the evaluation and metrics systems (baselines, before/after comparisons, DORA metrics, lead time, real adoption) that ensure every change ships on signal, not vibes.\nInference economics: Optimize AI workflows for speed and cost: model routing, prompt caching, and choosing self-hosted vs. frontier models based on the quality/cost trade-off.\nEngineering excellence: Testing, design patterns, CI/CD, and observability. Everything ships as production software, and you help set the bar for what good looks like.\nAbout you\nMust-have, engineering fundamentals\n5+ years building and operating production software at meaningful scale, with end-to-end ownership (not just shipping isolated features).\nStrong software design fundamentals: testing, design patterns, clean architecture.\nBackend depth: RESTful APIs, relational databases and SQL, distributed and event-driven patterns (queues, messaging) behind high-traffic services.\nFull production ownership: CI/CD, observability, infrastructure. \"Done\" means healthy in production, not merged.\nProficient business English.\nBuilt on top, AI & agents\n1 to 2+ years shipping LLM applications to production (not just prototypes), with hands-on command of context engineering, RAG, multi-agent orchestration, and evals.\nYou've personally authored skills, sub-agents, evals, or verification harnesses, and can walk us through something real you built.\nYou think in measurements: baselines, before/after comparisons, and killing experiments that don't move the needle.\nBonus points\nPublic work on agent harnesses, AI evaluation, or developer experience: open source, talks, blog posts, papers.\nExperience building internal tools or developer platforms, where other engineers are your users.\nComfort operating with ambiguity at startup speed: small teams, no playbook, decisions you own.\nBenefits & Perks\nAttractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance.\nStock options.\nOpportunity to have a real impact in a high-growth global category leader\n40% discount on all Fever events and experiences\nHome office friendly\nResponsibility from day one and professional and personal growth\nGreat work environment with a young, international team of talented people to work with!\nHealth insurance and other benefits such as Flexible remuneration with a 100% tax exemption through Cobee.\nEnglish Lessons\nWe have free food, drink and fruit at the office!\nPossibility to receive in advance part of your salary by Payflow.\nThank you for considering joining Fever. We cannot wait to learn more about you!\nIf you want to learn more about us: Fever's Blog | Tech.Eu |TechCrunch\nFever is committed to creating an inclusive and diverse workspace where everyone's background and ideas count. Our main goal is to find the best possible talent regardless of place of birth, racial or ethnic origin, gender, gender identity, religion, opinion, sexual orientation, disability, pregnancy, marital status, age or caring responsibilities. We encourage everyone to apply!\nIf you require any kind of accommodation during the selection process please contact our Talent team so we can help you by providing a welcoming and seamless journey.\nIf you want to know more about how Fever processes your personal data, click here Fever - Candidate Privacy Notice","description_format":"text","description_chars":6097,"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":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Health insurance","Home office","Stock options"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Ticketing","Event Management"],"lifecycle":[{"event":"open","at":"2026-08-21T12:06:18Z"}],"visa":[],"liveness":{"score":48,"band":"ok","label":"Likely open","p_open":1,"p_active":0.802,"p_room":0.6,"age_days":65,"expected_fill_days":66,"reasons":["conf:1","velocity","win:late","crowd:brand"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/fever-senior-software-engineer-ai-agents-developer-platform","json_url":"https://alion.io/job/fever-senior-software-engineer-ai-agents-developer-platform.json","meta":{"generated_at":"2026-10-27T02:32:20Z","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":1783,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":53827},"rest":"https://alion.io/mcp/rest/get_company?id=53827"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ffever-senior-software-engineer-ai-agents-developer-platform"},{"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%2Ffever-senior-software-engineer-ai-agents-developer-platform"},{"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%2Ffever-senior-software-engineer-ai-agents-developer-platform"},{"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/fever-senior-software-engineer-ai-agents-developer-platform\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ffever-senior-software-engineer-ai-agents-developer-platform"}]}