AI/ML & Data Engineer — AI Agents · Voice AI · RAG · Production ML 📍 Amsterdam, Netherlands · Remote (EU) · 🇳🇱 Dutch citizen (EU work authorization)
Full-stack AI/ML & Data Engineer who builds and ships GenAI applications and production ML systems end-to-end — fast and cost-efficiently. Freelance since 2021 for clients including Klarna, Booking.com, and ING, and founder of PrimAxiom Labs. 15+ years of production software engineering.
🌐 berkgokden.com · 💼 LinkedIn · 🤗 Hugging Face · ✉️ berk@primaxiom.ai
- Built an internal AI platform for 5,000+ employees at Klarna — 40% efficiency gains and lower cost per meeting
- Design, build, and deploy production AI agent systems — multi-agent orchestration, agent memory (short/long-term), MCP, evaluation, and guardrails
- Cut infrastructure cost 90%+ with an AI load-prediction optimizer at Vamp.io (acquired by CircleCI)
- Ship CI-tested open-source AI tooling + published multilingual NER models
| Project | What it is |
|---|---|
| voxbrief | Local meeting-intelligence voice agent: Whisper → structured brief (decisions, action items) → Q&A. Library · CLI · MCP server. |
| personalens | A code review, but for UX — Playwright + a vision LLM review a URL from each persona's point of view, with scores you can track and gate in CI. |
| place-extractor-mcp | MCP server for multilingual place extraction (13 languages), backed by mDeBERTa/ONNX models. |
| synthspan | Synthetic labeled-data generator for NER — templates/gazetteers or local-LLM few-shot with structured output + augmentation. |
| veri | Vector search engine in Go for ML feature serving. |
| llama-constrain | Constrained / structured generation for llama.cpp (GGUF). |
| 🤗 Berk | Multilingual mDeBERTa place/entity extraction models (ONNX). |
Agents — multi-agent orchestration · agent memory (short/long-term) · RAG · MCP · LangChain/LangGraph · Claude Agent SDK Eval & safety — Arize/Phoenix · guardrails · PII redaction · OWASP LLM Top 10 Models & inference — OpenAI · Anthropic · Gemini · Qwen · Llama · fine-tuning · Whisper · vLLM · llama.cpp · constrained decoding Cloud GenAI — Azure OpenAI · AWS Bedrock Data & vector — pgvector · FAISS · Pinecone · Qdrant · PySpark · Snowflake · Kafka · Airflow Platform — Python · Go · TypeScript · SQL · Kubernetes · Docker · Terraform · CI/CD · AWS · GCP
Freelance AI/ML engineer (contract) since 2021 — Klarna (Senior AI Engineer), Booking.com, ING; Engineering Lead at Vamp.io (acquired by CircleCI); earlier VodafoneZiggo, DPG Media, Caspar AI, SAP, and more.
Founder of PrimAxiom Labs — an Amsterdam venture building and operating AI-driven software products.