IN Team and Java in action

Check out how our teams tackle business challenges using Java technology


Senior developers in our team

“Detailed knowledge and a deep understanding of technologies form the foundation for our team’s ability to solve complex and challenging business problems through software.”

— Kamil Rostkowski / Founder of IN Team

Check out a showcase of our team's tech problem-solving powers


Scalable microservice architecture to find available payment methods

We have been working with the biggest eCommerce platform in Poland and implemented an algorithm to find available payment methods. This includes 100% service availability and complex business logic based on user and product features in a huge-scale, microservice network.


Plug-and-play checkout solution compliant with PCI DSS 4.0

To let small and mid-size merchants easily integrate with international payment providers we have built a scalable and interoperable checkout service. Huge factor was placed on the security (compliance with PCI DSS 4.0) and seamless customer and merchant journey while utilizing the solution.

Let’s meet and talk about your software challenges

Whether you need a dedicated IT team to lead your project or want to enhance your existing team with experienced engineers, we have the resources and expertise to make it a reality.

Clutch score
Diament Forbes 2023


Integration with PayPal, Klarna, MobilePay, Shift4 and more

In order to provide as many payment methods as possible we have been developing and maintaining integrations with PayPal, Klarna, MobilePay, Shift4 and more. This includes the complexity of different setups supported and many legacy systems around that the solution needs to be compatible with.


Processing 200k rps in a marketplace of 300mln+ products

We were part of the team building a service used to classify a big scale marketplace product database for special discounts/offers etc. That included building an engine using Spark jobs run on GCP that processed the database on demand and in real-time responding to product parameters updates.

Hear from our Clients

"They allowed us to deliver against our 20/21 roadmaps,
launching new products to market and increasing company revenue by over 70%."

Richard Coombes

Head of Engineering @ Equals Money
Equals money
“They’ve garnered our confidence and loyalty through their technical skills and the deep involvement.”

Graem Lourens

Co-Founder & CTO @ Lourens Systems
Lourens Systems
"They effectively assess a project and allocate the matching resources, which gives confidence that you are in good hands. Issues and tasks are handled proactively and communication stands on a firm ground of mutual understanding and goals. You are not hiring an external resource, but you are gaining a team member."

Gordian Ratajczak

Product Owner @ Neuroflash
"I’ve always found interactions with IN Team to be both streamlined, light, and effective. IN Team always seeks ways to improve, and have a process for ensuring the collaboration is going according to expectations."

Esteban Michalowski

CTO @ AltaPay
"The quality of their work is excellent. Their development support was a critical factor in successfully launching our business. They invested thoughtful consideration into the build phase and carefully tailored every aspect of the product."

Marcin Gruchała

Managing Partner @ ExeMed
"Their technical skills are exceptional compared to other local developers. The team has integrated seamlessly with the internal culture and adapted quickly to various work methodologies. They learn quickly on the job and have continuously improved over time."

IT Director
International Consulting Company

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