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josip
About

Hi, I'm Josip.

I make products much better with AI. Eight years of production engineering behind it, and four AI products of my own, live and paying.
My story

The short version: I take products that are already working and make them noticeably better with AI. When there's no product yet, I build the first one. Four of my own are live right now, with real users and real bills to pay, so I know what survives contact with production and what only demos well.

The credentials, since they matter when you're handing someone your roadmap: eight years engineering production systems at a large tech company, Master's in Computer Science. Mostly TypeScript, Go for the services that need it, Python where the AI work lives. Agentic systems are what I'm deepest in right now.

Outside work I read philosophy, cycle and ride motorcycles when the weather permits, and play semi-professional American football on the offensive line. Back on the field since 2022 after a freak injury took me out of the sport.

I take on two or three client projects a year, deliberately. Enough to stay sharp, few enough that yours gets the good hours. If you want your product to be much better with AI six weeks from now, the contact link works.

Josip Ledić, portrait made with pictwinai.com
Josip Ledić
Career
How I got here.
3 entries
2024
Went all-in on AI. Started pictwinai and grouped.news, and began taking on AI builds for small- and mid-size product teams.
2020
Joined a large tech company to work in cloud. TypeScript, Go, microservices at scale.
2018
Finished Master's in Computer Science. Freelanced as a frontend engineer for Fortune 500 and DAX companies.
Working with
The stack.
11 tools · day-to-day
TypeScript
Daily, the whole web side
Go
Daily, the services that need it
Next.js
Frontends and product builds
Node.js
Glue code, background jobs
PostgreSQL
Default datastore, including pgvector
Redis
Caches, rate limiters, queues
LangChain
Composing LLM workflows
LangGraph
Stateful agentic systems
FastAPI
Python services for AI workloads
Docker
Build, ship, run
Kubernetes
Where it earns its keep
Off-clock
Outside work.
  • ReadingPhilosophy mostly. Stoics, ancient and modern, and the odd computer-science classic.
  • Cycling & motorcyclingLong routes when the weather lets me, both pedalling and otherwise.
  • American footballSemi-pro, offensive line. Back at it since 2022.
Want your product much better with AI?
Get in touch