We are THEY.dev
We help clients, like you, to achieve your goals, by providing custom software development services, based on your ideas and requirements.
Patryk Madaj Full Stack AI ArchitectI lead a small army of AI agents that helps me turn complex challenges into smart automations, intelligent products, and polished mobile apps. They already take care of a good part of my life. Want to see what they could do for your company?
Barbara Dobrucka UI&UX DesignerUX/UI Designer with a Graphic Design background, driven by curiosity about the psychology and patterns behind user behavior. Creates clean, intuitive apps, skillfully balancing clients' business goals with real user needs, never losing sight of the person behind the screen.- Piotr Zacharski Frontend DeveloperI build modern web applications using React, TypeScript, and Next.js. I combine clean, intuitive interfaces with high-quality, performant code, focusing on user experience, accessibility, and scalability. I'm always eager to learn new technologies and build products that solve real user problems.
- Mikołaj Bogusz Lead Frontend DeveloperLead Frontend Developer who turns complex business requirements into fast, reliable apps people actually enjoy using. Obsessed with performance, clean architecture, and the small interface details that make or break an experience — leading teams to ship products that work as good as they look.
- Gabriel Hoang Backend EngineerI'm backend software engineer, Java and Spring Boot are my bread and butter. I build systems that scale, handle data across different stores, and ship it all to the cloud. Building it is fun, but I'm just as into keeping it alive and happy in production.
- Norbert Kamańczyk Fullstack DeveloperNorbert is a fullstack developer building modern web applications end-to-end, from Laravel-based backends to React frontends, with a strong focus on cloud infrastructure on AWS. His work covers everything from CMS platforms to serverless architectures, third-party integrations, and production monitoring, ensuring systems that are not just built, but reliably run.
- Filip Kubala Founder, CEO
- Bartosz Porębski Fullstack DeveloperFull Stack Developer (Java/Spring, Angular, React) with strong AWS experience. Builds scalable backend-to-frontend integrations, balancing technical soundness with business needs. Master in query and database optimization.
- Wojciech Soczyński Founder, CTO & AI ArchitectWojciech is a software development specialist with almost 20 years of experience. His CV includes such giants of the industry as Sabre, J.P.Morgan & BlackRock. In 2017, he started TH-EY and since then was co-leading the company. He has also served as a fractional CTO and advisor to multiple startups. Woj loves to approach things from the first principles.
- Aleksandra Arabasz Senior QA EngineerI’m a QA engineer working across manual testing, Playwright automation, and security testing, focused on how software behaves and where it might break or expose weaknesses. I pay close attention to the edge cases and vulnerabilities that don’t surface in standard scenarios.
- Sara Grządkowska Head of Operations
- Jędrzej Królicki Fullstack DeveloperFull Stack Developer specializing in Java and Angular. Designs and develops reliable, scalable integrations, aligning technical solutions with business needs. Combines backend and frontend expertise to deliver intuitive, maintainable, and value-driven applications.
- Mariusz Bugara Fullstack DeveloperI build software from frontend to backend, mainly using Java, React and TypeScript. Over the last year I've also been expanding my cloud skills with AWS, working on infrastructure and deployments. I like creating solutions that are simple, reliable and easy to maintain.
- Anna Zawada QA EngineerQA specializing in manual testing and test automation with TypeScript. Focused on thorough exploratory testing and building reliable test suites to catch defects effectively. Values business needs, attention to detail, and ensuring quality before changes reach users.
Over time, we’ve partnered with countless (actually counted: 50+) startups and companies, helping them build all sorts of web apps, mobile apps, and various software solutions and integrations. All these experiences have sharpened our skills and made us good at handling a wide variety of challenges.
Your success is our priority
Our main goal is to be more than just a service provider – we want to be your partner. We enjoy working closely with you, getting your vision, bouncing around ideas, and giving you expert advice. By teaming up like this, we can turn your ideas into reliable software solutions.
Shortening the gap between business and software development
We do it through direct and transparent communication, honesty, and a sense of a mission that all our people share.
During the development process, you will talk directly to the developers and testers, without additional layers of communication. But of course, you will have a dedicated tech lead from our side.
We’re not just coders – we’re here to be your software development co-pilots. With over 50 projects under our belt, we bring that experience to help you solve your challenge.
With time, we realized that a successful project is not only about code. This is why we developed an in-house Design, Quality Assurance and Marketing teams, to serve your application from different angles.
Long story short
THEY.dev company was started in 2017 by 2 full-stack developers: Wojciech and Filip.
That didn’t like the corporate, multi-layer approach to building software.
With time, we have grown to over 25 people onboard, including developers, testers, designers and more.
…and we don’t stop here!
How THEY.dev work
Effectively.
Might be the short answer. First things first, we put our energy into delivering quality work. Once we notice some recurring patterns, we grab those common pieces, so we can reduce the time spent on the menial jobs in the future, cut down on the number of bugs, and focus on the fun, creative bits.
In an established development process
Over time and dozens of projects, we came up with our own agile development process.
We took the best of Kanban and Scrum and added quality checks and continuous delivery, so we could build and deliver projects in the nick of time – and keep the feedback loop to a minimum.
Focusing on relations
We’re all about your success, no doubt. But what really makes our day is building strong, lasting relationships. That’s why some clients began with us and now treat us like their in-house tech team, and others have been with us since day one.
This approach is reflected in our reviews:
Remotely, from day 1.
A big ace up our sleeve is our remote setup, with team members spread out from the UK to Poland and even Romania. Our dedicated developers, designers, and testers crew can put their all into working with you to make sure we dish out exceptional results.
