We help our clients bring their product vision from zero to one
Who we are
Founded in 2016 in Warsaw, Poland, we began as a small group of six dedicated professionals. Today, we’ve grown to a team of over 80 tech experts, all focused on building software solutions that drive change and help businesses scale.
Over the years, we’ve earned the trust of leading enterprises and ambitious scale-ups worldwide. Our portfolio includes world-renowned brands such as Virgin Money, Sonova, Millennium Bank, Credit Agricole Bank Polska, Tide, Maspex, Shell, Viessmann, NOS, and E. Wedel. We deliver scalable, secure, and compliant mobile, web, and desktop solutions – even for the most demanding and highly regulated industries such as financial services, banking, real estate, healthcare, education, and retail.
What sets us apart? Our deep technical expertise is combined with a strong business mindset. Flutter, Google’s leading cross-platform development framework, lies at the core of our work, enabling us to deliver complex projects faster, shorten time-to-market, and ensure top-tier performance.
We’re proud to be one of the most active voices in the Flutter community. We organize meetups and conferences, create our own tools (such as Patrol for automated UI testing), contribute to open-source projects, share knowledge on stages across Europe and beyond, and continuously contribute to the growth of the ecosystem we believe in. Our commitment and expertise have been confirmed by Google, which listed us as official Flutter consultants and appointed two of our engineers as Google Developer Experts (GDEs) for Dart and Flutter.
Numbers
Other technologies
History of LeanCode
Łukasz Kosman and Jakub Wojtczak founded LeanCode, and at first, the team consisted of only 6 people. Today we’re much bigger and deliver apps to clients worldwide.
Core Values
Growth
At LeanCode, we prioritize the ongoing development of both our skills and knowledge. This commitment extends to how we approach the growth of our company as well—we see LeanCode as a platform that fosters every team member's personal and professional growth.
Honesty
We carefully assess both the project requirements and our capabilities, ensuring transparency in every aspect. We avoid making unrealistic promises, and our experts provide honest, constructive feedback to both clients and the team. This integrity is key to delivering high-quality apps.
Open mind
While we focus on becoming global leaders in our core technologies—Flutter, .NET, and React—we remain open to exploring new solutions. We continuously embrace new challenges and technologies, always seeking opportunities to innovate and grow.
Engagement
At LeanCode, we believe that our client's success is our success. That’s why each team member is fully dedicated to overcoming challenges and finding the best solutions possible, ensuring the success of every project we take on.
Meet our top experts
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Flutter Warsaw Community
Our mission has always been to create a platform for Flutter enthusiasts to exchange knowledge and gain insights from keynotes that enhance mobile app development. So far, we have organized 20 Flutter Warsaw events, some of which attracted up to 130 onsite attendees, with past editions also live-streamed for broader accessibility.
We’ve hosted leading Flutter experts, whose talks are available on the Flutter Warsaw YouTube channel. Our ongoing goal is to foster the growth of Flutter technology and inspire others to join this journey.
Photos from the event
Other initiatives
Patrol Framework
Speaking at conferences
Flutter Tech Summit
Flutter Europe
LeanCode Internship
LeanCode Day
Inspiring Academy
We created Patrol, an open-source UI testing framework designed for Flutter apps. Released in 2022, Patrol enhances Flutter's core UI testing capabilities, enabling developers to achieve what was previously unattainable. Our expert team continues to actively develop and refine the framework.
