AI Engineer

TL;DRWe are looking for an AI Engineer to take full ownership of how we use AI across fika ai – from how we run our 20-minute AI interviews to how we match candidates with jobs, build retrieval and ranking systems, and develop the intelligent agents that power the platform.You will work across LLMs, RAG, agents, embeddings, vector databases, and real production systems that directly impact thousands of candidates and companies.Why fika ai?fika ai is an AI-first talent marketplace used by leading Nordic startups like Legora and Apotea.What we doEvery candidate completes one 20-minute AI video interview. We use that interview, plus other signals, to deeply understand who they are and what they are strong at, and our AI suggests the best possible jobs for each candidate.Companies post roles or search our pre-interviewed talent pool, and our AI immediately recommends the best candidates for each job.It feels like an in-house recruiter - but faster, more accurate, and available 24/7.We are a small, fast team building something both candidates and companies truly love.What you will doIn one sentence:Build and scale the AI systems that power the entire fika ai product.You will:Improve and expand our AI interview pipeline (LLMs, STT, evaluation, structured insights)Build and iterate on matching models that understand both candidates and companies deeplyCreate and optimize RAG pipelines, embeddings, vector search, and scoring logicBuild LLM-based agents that source candidates, evaluate roles, and run parts of the recruiting workflowDevelop evaluation frameworks to measure quality, drift, and performanceWork closely with engineering and product to ship fast and iterate based on real usageYou will work end-to-end: prototyping, experimenting, evaluating, and deploying in production.What we are looking forCore experienceStrong coding ability (Python and/or TypeScript)Experience working with LLMs in productionSolid understanding of RAG, embeddings, and vector databasesExperience with agents or multi-step reasoning flowsComfortable building production-ready pipelines end-to-endAbility to move quickly and independently in an ambiguous environmentNice to haveExperience with STT/TTS or voice interfacesFamiliarity with automation tools (n8n, Zapier, Airflow, etc.)Experience with matching, search, or recommendation systemsPrior experience in marketplaces, HRTech, or ML-heavy productsFamiliarity with supporting tools like LangChain, Mastra, OpenRouter, etc.You will thrive here if youCare about craftsmanship and qualityLove shipping, iterating, and seeing your work used immediatelyAre comfortable taking full ownership over your work, from idea to production and iterationWant to help build a high-velocity, low-ego, deeply collaborative teamWant to use AI to solve a real, human problem at scaleOur tech stackBackend: Node.js / TypeScript, PythonInfra: AWSAI: OpenAI, Anthropic, Llama 3.1, Deepgram, ElevenLabs, vector DBsFrontend: Next.jsVoice: LiveKit AgentWe’re building the European leader in AI-driven hiring.This is a chance to build a category-defining product from day zero.Let’s build the future of hiring.