GOKHAN E.

I'm Gökhan — a software engineer with 12+ years of production experience, now focused on building AI systems that actually run in production, not demos. Most AI projects stall at the same point: the prompt looks great in a test, then breaks against real data, real users, and real infrastructure. I work on the other side of that line — retrieval that stays grounded, agents that fail predictably, and integrations that hold up under load. What I build: RAG and internal knowledge assistants (pgvector, embeddings, self-hosted or API models) AI agents and workflow automation (n8n, webhooks, CRM and third-party integrations) Voice AI agents (VAPI, Retell) with telephony, SMS, and CRM integration Custom GPT / OpenAI assistant workflows and chatbot logic Multi-tenant SaaS backends that host AI features (NestJS/TypeScript, .NET Core, PostgreSQL) Prompt architecture, evaluation, and cleanup for systems already in production Self-hosted LLM deployments where data can't leave the client's infrastructure Because I come from a backend engineering background, I don't hand over a prompt and stop there. I handle the data layer, the API design, the deployment, and the documentation — so what you get is a working tool your team can maintain, not a proof of concept. On Upwork I've earned $40K+ across 1,000+ hours and hold Top Rated Plus status, with a 100% focus on delivery and clear communication. I'm also the founder of Peakersoft, where we build sector-specific SaaS products — so I understand projects from the product side, not just the code. If your project needs more implementation bandwidth than a single freelancer, I can coordinate additional development support through Peakersoft. If you're looking for someone who can scope the AI workflow, build the system, and keep it grounded in something usable, let's talk.