About Yigit O.
AI Systems Engineer | Audit - Build - Maintain
I help companies get more value from AI: I audit existing systems, build new ones from scratch, and provide ongoing maintenance retainers.
With 6 years of experience in LLM agents, RAG, conversational AI, and automation, I focus on turning AI into reliable, production-ready systems. I’ve delivered 20+ projects for international clients and consistently cut cloud costs (up to 90% in past engagements) while improving performance.
How I can help:
Audit: Review your AI stack, chatbots, or automations; identify gaps and risks; deliver prioritized recommendations.
Build: Design and implement RAG systems, LLM agents, chatbots, and workflow automations.
Maintain: Monitor, update, and troubleshoot so your AI systems stay healthy and aligned with your goals.
I’ve built fault-tolerant LLM agents handling millions of voice and text conversations, RAG backends for “chat with your data”, and conversational flows for B2B SaaS; from Dialogflow chatbots to Pydantic-AI-powered agents.
Tech stack: Python, FastAPI, LangChain, Pydantic-AI, vector DBs (Qdrant, Milvus), Zapier, n8n. Cloud: AWS, GCP, Azure.
I prefer remote work and work in EU timezones (GMT+3). Let’s talk about your AI systems from a one-off audit to a full build and ongoing support!
Turkish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- AssistYou GroupAI Software Engineer - Analytics LeadAugust 2024 - Today (2 years)Rotterdam, NetherlandsVoice AI startup delivering state-of-the-art assistantsfor call center automation.· Engineered a fault-tolerant LLM Agent system (Pydantic-AI, Azure OpenAI, Elasticsearch) that enabled enterprise customers to "chat with their data," driving a 60% increase in analytics usage.· Led the Analytics domain processing 5M+ voice & 100k+ text conversations monthly; re-architected pipelines from batch to near-realtime, reducing analysis latency by 90%.· Reduced cloud costs by 40% and Terraform codebase by 80% by modularizing infrastructure and imple menting on-demand VM orchestration.· Pioneered a strictly typed Text Data Pipeline (WhatsApp, Messenger), creating a new revenue stream and reducing pipeline errors by 70% via Pydantic strict typing.· Tech: Python, FastAPI, Pydantic-AI, Azure OpenAI, GCP, Terraform, Elasticsearch, uv
- TrendyolPlatform EngineerFebruary 2024 - September 2024 (7 months)İstanbul, TürkiyeTurkey’s largest e-commerce platform with 2,000+ engineers.· Managed 500+ Kubernetes clusters and 13,000+ apps across hybrid environments using KubeVela and Open Application Model (OAM).· Contributed to the Internal Developer Platform (IDP), unifying workflows for 2,000+ engineers to improve deployment velocity.· Productized internal documentation by integrating LLM-powered assistants into support systems, automating responses to developer FAQs and significantly reducing platform ticket volume.· Tech: Go, Kubernetes, Crossplane, ArgoCD, Istio, Vault, OAM
- Fortune Teller CoffeeLead Software EngineerSeptember 2022 - September 2024 (2 years)NetherlandsAI-powered startup operating across 5 countries.· Architected the complete backend, a Computer Vision pipeline (coffee stain detection), and a conver sational LLM Agent.· Achieved a 90% reduction in cloud costs through aggressive resource optimization and Redis caching.· Streamlined the engineering lifecycle, reducing deployment time by 90% via GitHub Actions CI/CD automation.· Tech: Python, FastAPI, LangChain, OpenAI API, Go, Docker, GCP, Redis, Pytest
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Education
- B.Sc. in Computer EngineeringMugla Sitki Kocman University2025B.Sc. in Computer Engineering