Meet your fintech team
Banking apps, payments and core banking systems
Where the team has worked
Our fintech team came together from data storage, cloud, telecoms and banking. Most of them have spent the better part of a decade inside financial institutions.
They have worked on projects for HSBC, Nordea, Nest Bank, Goldman Sachs, PBS Bank, SGB Bank and PKO Bank Polski. These are projects team members delivered at previous employers, not client engagements of BranchWise.
Mostly on the parts that are hard to get right: how a mobile app talks to a bank backend, and how to keep that fast and secure.
Learn more about our Knowledge Transfer process to see how a handover works.
Fintech areas of competence
What the team actually works on:
- Payments: payment systems and a payment SDK, with Google Pay, Apple Pay and BLIK integrated.
- Core banking: the systems that hold accounts and move money — building them and keeping them running.
- Savings and mortgages: savings and mortgage products, and the interfaces customers use to manage them.
- Fraud detection: systems that spot and block fraudulent activity before it settles.
- Biometrics: fingerprint and face authentication on mobile.
- Security: encryption, secure communication protocols and authentication across the stack.
Key accomplishments
Microservices & Backend Development
Replaced monolithic core banking systems with Golang microservices — lower running costs, better performance under load.
Security and Compliance
Biometric authentication and encrypted data storage in production banking apps.
Award-Winning Projects
People on this team worked on banking apps that have won international awards for design and usability.
Projects we delivered
Award-Winning Banking Apps
We worked on IKO, the mobile app of PKO Bank Polski, repeatedly rated the best banking app in the world. It holds a 4.7 average rating from millions of users. For more details, visit IKO Best Banking App.
Autopay SDK for Payments
A payments SDK for mobile, with a customisable UI, Google Pay and Apple Pay support, and card OCR. We also wrote the documentation, the automated test pipelines and the demo app. For more details, visit Autopay SDK.
Autopay App for Automatic Toll Payments
The Autopay app pays motorway tolls automatically. We designed the architecture, built the UI from the mockups, integrated the Autopay SDK and added native biometric login, working with the UX designers and the business side throughout. For more details, visit Autopay App.
Extensive Banking Projects
New features built from mockups, unit and UI tests, and the core libraries for cryptography and network communication. Delivered solutions for PKO Bank Polski, Goldman Sachs and multiple HSBC projects.
Technological Expertise
The stack we work with:
- Backend Technologies: Golang, Python, Kafka PostgreSQL, MongoDB, Terraform.
- Mobile Development: Android SDK, Kotlin, Java, Android Jetpack, Material Design, Google Firebase.
- Development Tools: Git, GitLab, CI/CD pipelines, Gradle, Docker, Kubernetes, Google Cloud Platform, Amazon Web Services, Postman.
- Security Technologies: Advanced cryptography, secure network communication, biometric authentication.
Interested in opening your fintech subsidiary in Poland?
Tell us what you are building and we will tell you who we would put on it. If you are still working out the structure, here is how working with us goes, and what setting up the company costs and how long it takes.