I build things.

Right now I’m a Fractional CTO at Spektre in Amsterdam, running Beealgo Analytics, a C-level AdTech and FinTech consultancy, and co-leading Followyourcode.pl. I help startups ship products and build engineering teams. 16 years across AdTech, finance, e-commerce, and developer tooling — end-to-end, from small experiments to scaling infra past 900M monthly uniques.

Now building

Spektre
Fractional CTO
Fractional CTO. Applying AdTech experience to scale the team and ship product alongside a sharp crew in Amsterdam.
Beealgo Analytics
Founder
Founder & CTO. C-level vision, deep-tech execution. AdTech and FinTech consultancy with a Data and Sudo Authority practice.
Followyourcode.pl
Co-Founder
Co-founded education initiative introducing kids to programming, robotics, and computers with playful tools and tasks that turn curiosity about new tech into real skills.
Agentic Jams
Co-Organizer
An event I started with a friend in May 2026, bringing builders together every 6 weeks to riff on AI agents, swap what they are learning, and jam on ideas in the open.

Advisor

Space to Grow
Since 2024
Helping translate business goals into technical choices and build engineering teams that can deliver on them, alongside a great team at Space to Grow.

Products

Prepolis
Since Dec 2025
See what a stranger can already learn about your SaaS. A no-login recon pass over your stack — the way an outsider would — with a report of what I find. Catch it before you ship, not after. Started as an internal tool and is slowly growing into something external and genuinely useful, especially now that people ship products faster than ever.
StingStock
Since May 2025
Your daily market buzz. The day's biggest market news boiled down to one short brief: what happened, which sectors and indices it moves, and links to the original sources. A fully automated agentic system.

Past

GumGum
2022 — 2023
Senior Director of Engineering reporting to the SVP. Led engineering for the contextual advertising platform across multiple teams.
JustPremium
2013 — 2022
Lead Software Engineer → CTO. Built and scaled with amazing teams the rich-media AdTech platform on Linux/HAProxy past 900M monthly uniques, and grew the engineering org through acquisition by GumGum.
Nomino
2011 — 2013
Full-Stack Ext.js & PHP Developer. Built e-commerce and data management platforms for international clients, designing modules across large-scale enterprise systems (Zend Framework, ExtJS 4, PostgreSQL).
Freelance
2010 — 2011
Freelance Full-Stack Engineer. Designed and built admin applications and a custom PHP5 framework for national clients, plus osCommerce-based management software (Zend Framework, MySQL).
Where it all started
Age 14 · Delphi 7
First lines of code on Windows. Quiz apps, a homemade music player, and a steady stream of small experiments — the spark that turned curiosity into a craft.

What people say

Eric V.
Founder, CEO
“Almost 10 years ago I met the amazing Łukasz Sudoł. He helped us build and lead a dream team of Developers and Ops people to support our business. This team has been instrumental to our global growth. Team Poland, thanks for all the amazing technology you built for Us.”
Vaibhav P.
SVP of Engineering
“Lukasz is one of the best people leaders I have seen in my tenure. He proactively fishes out issues from people and tries to address them before it becomes a bigger problem. He understands how important it is to train and develop people. Because of his leadership it was easier for us to implement some of the business decisions. I highly recommend him for a technology leadership job. He is definitely a person capable of thinking long term and it was great to work with him.”
Łukasz K.
Engineering Manager
“Working with Łukasz is an absolute pleasure. His perseverance, passion, and pride in his work are second-to-none. Łukasz is a very responsible person that you can rely on. He is very professional and always does his job very well. His knowledge and skills go beyond just programming, he is also a great teammate and mentor.”
Max M.
Product Owner
“I had the pleasure of working together with Lukasz during my last 3 years at JustPremium (A GumGum Company). During this time, Lukasz was Head of Development while I was working as Product Owner in one of the development teams.
Lukasz’s never-ending knowledge on technologies, and his gift of explaining things in a very structured, clear and interesting manner, taught me a lot. As Head of Development, Lukasz was always working on improving the team in different ways, by organizing many interesting trainings as well as improving the ways we worked together. Under Lukasz’s supervision, the team became a highly respected and valued team within the company.
Lukasz’s skills, (technical) knowledge, team-building efforts and calmness would be welcomed by any team and I am thankful I had the pleasure of experiencing them. All the best Lukasz!”
Zivile V.
Product Owner
“I had the pleasure working with Lukasz for around 4 years when in JustPremium.
Lukasz is an extremely professional, dedicated, and responsible person, he is always polite and calm explaining new things and technologies. We worked together on several projects where he was head of the projects so his ability to set a goal, prioritize important details, and streamline the process is incredible. We delivered all projects on time with the best outcomes!
There was no issue Lukasz couldn’t solve or advice on how to solve, he is aware of his team’s strengths and able to use maximum efficiency to solve any problems.”