Senior Development Engineer

Do you want to take an active role in building the payment processing engine that enables instant transfers across the world, all hosted in the cloud? Then we might have the perfect role for you.

Banking Circle is a fully licensed, technology enabled bank processing over €1 trillion in payments every year - and growing. We exist to power the global economy’s most ambitious payments businesses with infrastructure that is fast, modern, and engineered for scale. Today, more than 800 people across 11 countries work together as one global team. We move fast, we think boldly, and we build with intent - because our clients depend on us to keep pace with the world’s most dynamic payments flows. We are expanding globally, scaling our capabilities, and deepening our impact, so if you want to shape the future of financial infrastructure - this is the place.

Your team welcomes you with open arms
As our new Senior Development Engineer in the Clearing Technology department in Poland, you’ll experience an open and knowledge driven culture, where everyone can thrive, connect with colleagues, learn and grow. Here you will be empowered to make an impact every day.

In this role, you will have the opportunity not only to build high-quality systems, but also to expand the reach of our Clearing capabilities, opening the world to our customers and supporting our ambition for true global scale. Clearing is the critical technology and integration layer that connects Banking Circle to payment schemes and clearing infrastructures across markets, enabling the secure, reliable, and efficient processing of payment transactions. You will help shape and evolve a high-end fintech platform where quality, performance, and reliability are our core focus. You will contribute to mission-critical payment and transactional systems that must operate with uncompromising 24/7/365 robustness, high throughput, active-active resilience, and the ability to scale seamlessly as we continue to broaden our international footprint.

We are an agile .NET backend team working with a modern technology stack centred around Microsoft Azure, including Azure Data and Messaging Services (Service Bus, Event Hub) and Azure DevOps (Pipelines, Repos), all running in a cloud-hosted Kubernetes environment. At the same time, we are accelerating the use of AI-driven capabilities across the organisation to enhance productivity, streamline engineering workflows, and support smarter ways of working at scale.

We offer a hybrid work model for our employees to allow for flexibility and productivity. However, we do expect you to spend most of your time in the office to build community and efficiency in the team.

Exciting work is waiting for you

• Development of backend solutions in C# on Microsoft Azure
• Apply good engineering practices with an eye for performance and reliability
• Carry the technical responsibility of complex feature implementations
• Critically assess our way of working and contribute to improve and mature it
• Critically assess the current solution we work on
• Contribute with ideas to continuously improve and scale our platform
• Collaborate with the team and internal stakeholders

Things we’ll look for on your resume
To succeed in this role, we expect you to already have experience from a similar role where you have gained experience within .NET. You might already have worked with backend solutions that process high volumes of data with a focus on throughput and availability.

You have experience working with performance sensitive applications and you are comfortable with caching strategies, both in-process and distributed. We run our entire core platform in Azure so you will get a chance to work with modern cloud services and solutions. Therefore, Azure experience is a definite plus, but not a requirement. You are also motivated and skilled in designing clean and maintainable solutions.

As a person you are pro-active, responsible, and quality oriented. You have strong analytical skills and a structured way of working and courage to try new things. You are a dependable and knowledge-sharing team player that thrives with collaboration, and you can accept the choices made in the team, even if your individual choices would have been different.

Banking Circle is an international company. Our internal workforce consists of over 50 nationalities, and our clients and partners are located all over the globe. Therefore, our company language is English.

Go ahead and take the first step
We look forward to hearing from you. We review applications and interview candidates continuously. Please note that we don’t accept or consider CVs received through email or direct messages. If you have questions, please reach out to our recruitment team on Se e-mailadresse på jobbank.dk – delays in response may occur due to Summer Holidays. No recruitment agencies, please.

We are proud to be an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, age, religion, sexual orientation, national origin or any other characteristic protected under federal, state or local laws, regulations and ordinances. To learn more about Banking Circle, visit us at

Lokation: Warsaw (PL)