Bartosz Gładecki
Senior software engineer, Elixir/Phoenix first.
I build backend systems that stay up and stay fast: concurrent Elixir/Phoenix pipelines, queues that don't lose work, tests that catch what matters. AI goes in where it earns its place. Twelve years professionally, since 2014.
Three things I do.
the offer
- Build the system. Elixir/Phoenix backend, concurrent pipelines that hold their shape under load, database-backed job queues, tests you can trust. Three to six months, monthly.
- Harden what exists. Queues, workers, transactions, locks, observability: the parts that break at 3am.
- Put AI where it earns its place. RAG and semantic search that return the right answer, ingestion that survives restarts and retries, evaluation before you ship. Two to four weeks, fixed scope.
I don't take frontend-only tickets, on-site-only roles, or spec work before a contract.
If your stack isn't on my list, I learn it before the first commit.
What I've built.
work
- Really Trusted (Elixir/Phoenix/LiveView, 2021–2025): queue framework on database transactions with PubSub row-level lock notifications; Oban ingestion with zero data loss across restarts.
- IFAD / United Nations (Rails, 2019): automated translation reporting engine whose summaries reached government representatives worldwide.
- DeerStorage (open source): the data storage app I conceived and led; zero-refresh WebSocket UI, A+ TLS grade from SSL Labs. Case study and live demo.
Full history on the work-with-me page; the toolset on skillset; older notes on the technical blog.
Talks and workshops.
in person
I like a room with people in it. I speak about making concurrent systems behave: queues on database transactions, ingestion that survives a restart, tests that hold the line. The AI talk is about the gap between a demo and a feature that survives production.
- Reliable background work in Elixir: queues on database transactions.
- Why AI features fail after the demo: ingestion, retrieval, evaluation.
- From demo to product: a hands-on workshop, bring a corpus.
How I got here.
background
Twelve years professionally, starting in 2014: Linux server administration, Rails at Packhelp, Xing and the UN's IFAD, then 3.5 years of Elixir/Phoenix/LiveView at Really Trusted, where I designed the queue framework the product ran on. I wrote my first web page at twelve.
In 2025 I left that role to go deeper into AI, and I've been working from the road since November 2025. Currently in Greece, and open to remote work or relocation. I'm social, I'm confident, and I say what I think.
Send me your problem.
contact
Three lines are enough: what you're building, where it hurts, and what has to change. I read and answer every message myself.