About
I work with AI the way I used to work with engines.
Hands-on, in practice, until it runs.
The story
For three and a half years at Borusan Cat I was a field service technician on diesel and gas generator sets — Caterpillar, Olympian, MWM — doing preventive maintenance, troubleshooting, overhaul and commissioning on site, usually with a customer’s operation stopped and waiting. That work shaped how I think: read the symptoms, form a hypothesis, test it, and don’t guess when someone else’s downtime is the cost.
I started programming in 2020 and kept it as a serious side interest through my studies and my years in the field. In early 2025 it became my main focus — especially the open-source and local side of AI: running LLMs on my own hardware, building agents and retrieval systems over private documents, image generation, and whatever new tooling appears month to month. I follow this space daily and I learn by building, not by collecting certificates.
I’m not a software engineer by training. What I’m good at is putting these tools to work on real problems — getting a capable model running where the data can’t leave the building, automating work people are still doing by hand, and explaining the result to someone who doesn’t care how it works, only whether it works. I spent years being that person on the other side.
Alongside this I design in SolidWorks and Fusion 360 and have done a lot of 3D printing — from CAD model to finished part. Today I can go from an idea to a printed part entirely offline, with AI filling the gap where hand modelling used to stop me.
I build games, apps and AI tools under my own studio, Calkap Labs. I’m looking for hands-on work in applied AI — full-time, part-time or project-based.
Timeline
Ships, engines, then models.
- 2026 —
Applied AI Specialist, self-employed
Independent applied AI work for heavy industry and field service, using cloud or local models — whichever fits the job: evaluating open-weight models on my own hardware (quantisation, context handling, hardware and performance trade-offs), AI agents and retrieval over private company documents, image generation workflows, automating manual work, and Python. Founder of Calkap Labs.
- 2022–26
Field Service Technician (EP), Borusan Cat
Borusan Makina ve Güç Sistemleri, Caterpillar dealer, İstanbul. Field service on diesel and gas generator sets — Caterpillar, Olympian, MWM: preventive maintenance, troubleshooting, disassembly and assembly, overhaul and commissioning on customer sites.
- 2021
Summer internship, Gedik Kaynak
Maintenance and repair of the wet and dry drawing machines used for welding-wire production.
- 2020–22
Machine Program, İstanbul Gedik University
Associate degree on a full scholarship; graduated first in my department.
- 2019–20
Internship, Istanbul Naval Shipyard
Seven months on the maintenance and repair of MTU engines in naval ships.
- 2016–20
Ship Machinery, Piri Reis Maritime Vocational and Technical High School
Ship machinery management.
Skills
What I bring.
Applied AI
Cloud and open-weight LLMs, running models locally, agents, retrieval (RAG) over private documents, image generation and editing, AI 3D generation, workflow automation, Python.
Products
Games and apps designed and built solo and shipped to the App Store and the web.
Mechanical
SolidWorks, Fusion 360, technical drawing, 3D printing.
Field
Diesel and gas engines, generator sets, preventive maintenance, troubleshooting, overhaul, commissioning.
Publication & certificates
On paper.
Otonom Sualtı Kaynağı ve Sualtı Kaynak Muayene Aracı
An autonomous underwater welding and weld-inspection vehicle. Presented at the 1st National Congress on Interdisciplinary Approaches, İstanbul Gedik University, 16 May 2022.
Borusan Technology School certificate of achievement
Borusan Holding, September 2022.
Contact
Working out where AI fits in your operation?
Full-time, part-time or project-based. Based in İzmir; open to Kocaeli, İstanbul and remote.
gokhan@calkaplabs.com or message me on LinkedIn