Buğrahan Dönmez
@bugrahandonmez
Senior AI Engineer building production generative image/video and LLM/VLM systems end to end.
TurkeyWhat I'm looking for
I’m a Senior AI engineer with 7 years of experience shipping production machine-learning systems end to end, with equal depth in generative image/video and language systems. I lead initiatives that move from concept to production while keeping quality, reliability, and performance front and center.
On the vision side, I’ve built diffusion-based image, video, and ad generation systems using ControlNet, model fine-tuning, and virtual try-on—serving thousands of customers. I also parameterize diffusion pipelines with LLM-orchestrated workflows to make generation more controllable and repeatable.
On the language side, I build production LLM/VLM pipelines with multi-provider integration (OpenAI, Gemini/Vertex, Groq) and structured-output enforcement using JSON Schema and Pydantic. I lead evaluation pipelines (Langfuse and custom quality gates), and I’ve driven major reliability gains like reducing invalid outputs from 36% to 0% and increasing extracted output by 45%, with leak-safe holdouts and leak prevention.
Experience
Work history, roles, and key accomplishments
Freelance AI Engineer
Confidential Client
May 2026 - Present (2 months)
Owned a production VLM extraction pipeline converting technical documents into structured data with enforced JSON-schema outputs. Built an evaluation harness with per-class precision/recall quality gates and deployed the system on GCP Cloud Run and RunPod.
Led multiple AI initiatives for a creative-automation platform, owning features end to end for image, video, and ad-copy generation. Built production LLM ad-copy prompt pipelines with schema-enforced structured outputs and designed LLM-orchestrated diffusion image workflows, plus VLM-based creative analysis and scoring.
Senior Machine Learning Engineer
Refabric
Jul 2024 - Feb 2025 (7 months)
Set technical direction for AI projects and mentored the team at a fashion-tech platform. Built virtual try-on technology and photorealistic AI photoshoot tools, applying VLMs for garment understanding and LLM prompt pipelines for design assistance across the full AI lifecycle.
Computer Vision Engineer
Creative Advanced Technologies
Dec 2022 - Jul 2024 (1 year 7 months)
Designed and shipped computer-vision applications for cloud services and edge devices across multiple industries. Converted and optimized machine-learning models for mobile and embedded deployment to ensure real-time performance on constrained hardware.
Machine Learning Engineer (Team Lead)
HubX
Oct 2021 - Dec 2022 (1 year 2 months)
Led the AI team and built complete AI systems from the ground up for three consumer mobile apps: Mimic, PhotoApp, and DaVinci. Deployed deep-learning models to GCP for scalability and optimized inference using C++ and CUDA (CuPy).
Computer Vision Engineer
Rapsodo
Jun 2019 - Oct 2021 (2 years 4 months)
Built ball-tracking and pose-estimation systems for sports-analytics products. Combined computer vision with physics modeling to compute optimal pitching guidance.
Education
Degrees, certifications, and relevant coursework
İzmir Institute of Technology
Master of Science in Computer Engineering, Computer Engineering
2019 - 2022
MSc in Computer Engineering at İzmir Institute of Technology from 2019 to 2022.
İzmir Institute of Technology
Bachelor of Science in Computer Engineering, Computer Engineering
2014 - 2019
BSc in Computer Engineering at İzmir Institute of Technology from 2014 to 2019.
Tech stack
Software and tools used professionally
Availability
Location
TurkeyAuthorized to work in
Salary expectations
Job categories
Skills
Interested in hiring Buğrahan?
You can contact Buğrahan and 90k+ other talented remote workers on Himalayas.
Message BuğrahanGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
