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What I take on

I run a one-person practice and take on roughly four clients a year. That's a constraint, not a sales line — every engagement gets my full attention, and I turn down work I can't do well. The work falls into seven areas: agentic AI systems, search and retrieval, data engineering, e-commerce infrastructure, fulfillment, data collection, and mobile. Each one starts the same way: a short, fixed-fee discovery that ends in a written decision — including "don't hire me" when that's the honest answer.

Production Agentic AIAgents that survive production: budget envelopes, fallback chains, verification layers. One system's monthly bill went from $4,000 to $40.Hybrid Search & RetrievalBM25 + dense vectors + image embeddings over a 7-million-product catalog. nDCG@10 from 0.61 to 0.74, measured on real queries.Data Engineering & AnalyticsEmbedding pipelines over 7 million products, LLM-ready data preparation, anomaly detection, recommenders, KVKK-compliant test data — data work that ends in decisions.E-Commerce InfrastructureGo microservices, Redis caching, RabbitMQ workers behind a cross-border marketplace — 7 million products, multi-currency pricing, built from zero to production.Fulfillment & Warehouse ManagementA 45-state package lifecycle FSM running a real warehouse every day, a bilingual operator UI that cut operator errors by 31% — customs integration included.Data Collection & Crawler InfrastructureDistributed crawlers at millions of pages a day — compliant by design: robots.txt, terms of service and GDPR/KVKK respected, parsers that survive schema drift.Mobile Build & RescueReact Native and Flutter — including a mid-project framework migration done in six weeks, and three App Store rejections turned into approvals.

How an engagement runs

  1. Discovery

    One to two weeks, fixed fee. I audit what you have and you get a decision document: what's broken, what fixing it costs, and a clear go/no-go. If the right move is not building, the document says so.

  2. Build

    Scoped from the discovery output, priced in a one-page proposal. You see working software every week, not status slides.

  3. Stabilization

    I don't hand over and vanish. A defined window after launch covers production issues, monitoring, and getting your team to the point where they no longer need me.

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