Product leadership · data platforms

Make the complex move.

I turn ambitious technical systems into products people can actually use — with clarity, momentum and a bias for the useful.

Explore my journey ↗LinkedIn ↗
15+ years building products
10+ services owned
100+ engineers enabled
02About

Strategy is only useful
when it ships.

I'm Szymon — a Lead Product Owner working where product, engineering and infrastructure meet.

Today I lead the data domain of a private, sovereign cloud platform for Europe's power grid. Before that, I built platforms for banks, marketplaces and telecoms — always with the same question: how do we make the hard thing feel inevitable?

My approach is practical and systems-minded. Find the real constraint. Make the tradeoff explicit. Give great teams the context and autonomy to do their best work.

Start a conversation ↗
03Career journey

A long way
to the platform.

Every role added a new layer: from understanding the signal, to shaping the system, to helping teams build what matters.

Sovereign cloud / data domain

Leading the data domain of the Elia Digital Platform: a cloud-native internal developer platform running on private sovereign cloud for Europe's power grid.

  • Guiding 3 product owners and ~18 engineers
  • Managed databases, Kafka streaming, Spark and Jupyter as self-service products
  • Defining service boundaries and roadmap across the data portfolio

Data analytics platform

Shaping a single entry point for resource and access management used by several hundred data users across the bank.

  • Led three teams across access, catalog and ingestion
  • Connected identity and access across Azure and GCP
  • Delivered self-service workflows for analysts, engineers and data scientists

Internal developer platform

Owned the roadmap for a cloud-native PaaS on Kubernetes, hosting new software for roughly 200 engineers.

  • Led a team of 6 DevOps engineers
  • Shipped self-service CI/CD, GitOps, databases and message brokers
  • Owned 100+ services across hybrid cloud and on-prem environments

Telecom systems / insurance software

A decade of turning complex technical systems into focused, shippable products and resilient ways of working.

  • Backlog and feature ownership for 3 development teams at Nokia
  • Requirements, solution design and client support at Efinity
  • Agile process, product quality and team operating model leadership

The technical foundation

Started close to the network layer: radio protocols, LTE, field deployments and quality testing across Europe.

  • Worked on 5G Mobility, 5G RAN Interworking and VoLTE
  • Installed and commissioned LTE, UMTS and GSM equipment
  • Tested radio protocols in real network environments across Europe
04WritingCurated · not a feed

Thinking out loud, in public.

A short, hand-picked list — platform tradeoffs, product boundaries, and the occasional thing I got wrong. Posted on LinkedIn, kept here on purpose.

01Oct 2026
Using AI to spot AI slop in my feedOpen ↗
02Jan 2021
Certified Professional Scrum Product OwnerOpen ↗
05ProjectsSide projects

Things I build after hours.

Small tools I make for myself, mostly with AI, to fix something that bugs me.

slop-meister

Chrome add-on · runs on your own Mac

Tags every English LinkedIn post as “Likely AI”, “Unclear” or “Likely human”, based on how predictable its wording is. The check runs on an AI model on your own computer, so the posts you scroll past are never sent anywhere. Treat the tags as a hunch, not proof.

docs-meister

Mac app · runs on your own Mac

Ask questions about your own documents (PDFs, Word files, spreadsheets, notes, even photos of text) and get answers with numbered sources, down to the page. Everything, including the AI model, runs on your own computer, so your files never leave it. If the answer isn’t in your documents, it says so instead of guessing.

Design mockup of the docs-meister Home screen in dark mode: a greeting, an “Ask your documents” box with suggested questions, and library figures such as 42 documents, 39 of them searchable.
06Digital twin

Ask my
digital twin.

An AI trained on my career history — good for a quick answer before we talk for real.

Digital Twin
Hi, I'm Szymon's digital twin. Ask me about his career, the platforms he's built, or why he moved from radio engineering into product.

Conversations may be saved to improve future answers.

Have a good problem?

Let's make
it move.

szymon.raksimowicz@gmail.com ↗