Senior Engineer & Engineering Manager
I help companies ship faster, scale smarter, and make better technical decisions - from backend systems in Go and GCP to embedded hardware, ML infrastructure, and engineering leadership. Whether you need a hands-on contractor, a fractional EM, or a technical advisor, I bring 20+ years of experience across startups and enterprise.
For years, the job of an engineering manager or director was clear. Own the project. Run the program. Build the vision. Align people around it. Deliver. The manager of 2020 aligned people. The manager of 2026 aligns people, and ships.
Muse Charm gets the hardware right. The real bar is whether you'll trust Meta with your logins and cards.
Amodei warned that AI would wipe out entry-level jobs. He looked in the right direction but missed the target. The displacement is one floor up: managers and directors who reject AI. It was never about the craft. It was about shipped outcomes.
Purple connects to your local Ollama instance and gives the model real tools to act on your Linux or MacOS system. Unlike cloud assistants, it has no API key to manage, no usage caps, and no privacy trade-offs.
A while back I decided to train a language model from scratch. Not fine-tune one. Not LoRA-adapt one. Train one - weights initialized to noise, tokenizer built from my own corpus, the whole thing.
AIP is a terminal-based training monitor I built while training my own 1.3B-parameter Polish language model from scratch on an RTX 4080.
I have been managing projects for high-profile companies including EPAM, StubHub, Pearson Education, MeteoGroup (now DTN), BBC Weather, and Magic Leap. Throughout my career I have built deep skills in working with Agile teams, implementing Scrum at org scale, delivery processes, milestone planning, product timelines, and risk management. 20 years of experience shows up on a daily basis - supporting great people in delivering innovative products within budget and on time.
My customers value my design and deployment of systems at scale — from distributed backend platforms handling millions of transactions to lightweight embedded solutions running on microcontrollers. My architecture work spans payment infrastructure at StubHub and Uber, weather data pipelines at MeteoGroup and BBC Weather, educational platforms at Pearson, backend infrastructure at Epic Games, and most recently XR infrastructure at Magic Leap. So far I have delivered more than 20 projects that helped my customers meet the expectations of their users.
I believe great engineering leadership starts with staying close to the code. Throughout my career I have remained a hands-on practitioner building production systems in Go, C, C++ and Java, designing embedded firmware on ESP32 and RISC-V microcontrollers, training large language models from scratch, and architecting cloud infrastructure on GCP. I led teams at many high-profile companies in Silicon Valley, and I built my own local-first AI platform, IoT sensor network, and blog engine outside of work hours. In my experience, a manager who cannot read a pull request, challenge a technical decision, or unblock an engineer at the code level is a cost centre — not a force multiplier. My teams have always known that I can sit down next to them and help ship.
Over my career I have built and led engineering organisations of up to 40 people, growing talent from junior engineers all the way through to senior and lead roles, many of whom went on to drive entire delivery streams independently. Working across diverse tech stacks and domains has sharpened my ability to quickly understand individual strengths and align them to the right challenges. I believe a manager's primary job is to make their team not need them. That means investing in people's growth, creating clear career progression, removing impediments before they become blockers, and building an environment where engineers have the tools, context, and confidence to make good decisions on their own. My proudest professional moments are not shipped products - they are the engineers I watched become leaders.
Every time I find myself in a difficult spot or facing a complex architectural roadblock, I ask myself one question: "What would Matt do?" More often than not, keeping that perspective guides me to the right solution. Matt possesses a rare and powerful combination of deep technical brilliance and exceptional pragmatism. He doesn't just build great systems; he knows how to deliver them efficiently. As a leader, he is a masterclass in effective delegation—he trusts his team, empowers them, and consistently sets everyone around him up for success. I’ve watched him lead numerous high-stakes migrations, orchestrating large teams and moving parts under immense pressure without ever flinching. It has been an absolute pleasure to work alongside Matt and learn from him, and he would be a massive asset to any engineering organization lucky enough to have him.
Mateusz was Manager in my team for almost 3 years. All this time he always was dedicated to work, supportive in case of problems/challenges. Never hesitated to even step in when there was such a need and develop source code. He showed himself also as a extremly strong mentor, learning younger collegues, supporting them in their process of development what oftenly caused that they exceed their expectations. Even if last time when we have occasion to cooperate was 4 years ago, I still found him as one of the best Lead I have ever worked with and frankly speaking I am looking forward for further cooperation.
During our time working together, they consistently demonstrated strong technical skills and a very collaborative approach. We had rich conversations and he consistently contributed valuable ideas and insights. His positive attitude and dedication to achieving results makes him a valuable asset to any team. I highly recommend Mateusz for any position that requires technical competence and collaboration skills.
As product manager I have learned Mateusz as an excellent IT specialist with lots of know how. During the years we worked together from different countries Mateusz was always very supportive and he learned, trained and advised me in an excellent way to make good decisions as product manager. I see him as a perfect Agile team player
Received the EPAM CEO Award for Business Growth in recognition of significant customer account expansion driven by me team's technical excellence — consistently stepping up to solve complex customer problems and delivering high-quality solutions that exceeded expectations.
Check my IoT projects you can flash to your ESP32 using your browser so you can test them. Feel free to use as you please — it's freeware and I hope it will be useful for you. All you need is an ESP32.
Open windows, every process and live CPU/memory charts — a GlassUI task manager.
dnf: glasstermA terminal emulator on a pane of glass — xterm-256color, colour emoji, built on GlassUI.
Spatial Audio Engine for Linux/PipeWire built around five distinct algorithms.
Have a project in mind, a team that needs leadership, or a technical problem that keeps getting pushed down the backlog? I am available for contract engagements, fractional engineering management, and consulting. Let's figure out if I'm the right fit.
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