About the project

• We are looking for an experienced Senior C# Developer to join a long-term project for a global banking client. You will work in an international, collaborative environment where your expertise will help shape mission-critical financial systems.
• Location: Hybrid – 2 days/week in Warsaw office
• Rate: Up to 170 PLN/h B2B
• Client: International banking sector

Your responsibilities

• Design, develop, and maintain high-quality and low-latency C# services.
• Continuously optimize performance and scalability.
• Collaborate with quants and traders to understand requirements and translate them into technical solutions.
• Participate in Agile development processes.
• Participate in code reviews.
• Implement DevOps practices to ensure continuous integration and deployment, as well as the operation of the infrastructure.
• Mentor and provide technical guidance to junior team members.

Our requirements

• Bachelor’s degree in computer science or a related field.
• Minimum of 7 years of commercial experience using C#.
• Strong knowledge of the .NET 6+ runtime.
• Demonstrated experience with low-latency programming concepts and techniques.
• Proficiency with Aeron and SBE for low-latency messaging.
• Experience with Docker and containerization technologies.
• Experience with AWS cloud platform.
• Strong understanding of DevOps practices and tools for automation and continuous integration/delivery.
• Experience working in Agile teams, following Scrum or Kanban methodologies.
• Strong communication skills using written and spoken English, and ability to collaborate effectively with team members from various backgrounds.

Technologies we use

What we offer

• 💻 Equipment? You bet. Either we or the client will provide everything you need – no coding with sticks in the sand!
• Co-financing for:
• 🏋️‍♂️ Multisport membership – because a good stretch after coding never hurt anyone.
• 🛡 Life insurance – life’s unpredictable, and we prefer it that way… but in a good way.
• 🩺 Private healthcare – because your health comes first (and nobody likes queues).
• And that’s not all:
• 🏢 A cozy office in Poznań at Kłosowa 27 – complete with a garden and grill for sunny lunch breaks.
• 👥 A great team – seriously, we’re awesome. We share memes, support each other, and enjoy working together.
• 🎲 Board games after hours – from silly games like Dobble to strategic ones like Terraforming Mars.
• 🎉 Team events & parties – we like to hang out outside of work too, whether it's for a beer or a barbecue.