Senior .NET Developer – Financial Services and Payment Systems

Unleash innovation in digital banking — shape the future of secure, high-performance financial solutions!

Łódź-based opportunity with hybrid work model (2 times in the office/month).

As a Senior .NET Developer, you will be working for our client, a leader in online banking, supporting the development and maintenance of innovative, reliable financial systems. Join a dedicated team focused on building advanced payment functionalities and ensuring the highest standards of digital transaction security. This is a chance to influence the future of digital banking while advancing your career in a dynamic, distributed Agile environment.

Your main responsibilities:

• Design and develop new features in .NET 8 to enhance banking solutions
• Develop and optimize database solutions using Microsoft SQL Server
• Implement and maintain integrations with messaging systems such as Kafka and IBM MQ
• Build and maintain containerized applications using Docker and Kubernetes
• Collaborate with cross-functional teams in an Agile environment to deliver robust solutions
• Participate in the development of secure payment systems and share expertise across teams
• Conduct code reviews, tests, and ensure code quality standards are met
• Resolve production issues and maintain existing functionalities

You're ideal for this role if you have:

• At least 5 years of experience in developing complex IT systems
• Hands-on expertise with .NET Core, .NET 6, .NET 8, and SQL Server
• Knowledge of Kubernetes, Docker, and Azure DevOps tools
• Familiarity with Jira, Confluence, Bitbucket, Jenkins, TeamCity, and SonarQube
• Experience with messaging and data integration technologies such as Kafka, IBM MQ, Redis or KeyDB, and SSIS
• Practical understanding of Agile software development methodologies
• Strong communication and collaboration skills in distributed teams
• Ability to work independently, manage your time effectively, and take ownership of tasks
• Passion for continuous learning and software excellence

It is a strong plus if you have:

• Certifications or additional skills in related technologies or security standards

Language Required for the role:

• Polish (Good command)
• English (Communicative level)

Eligibility to work in Europe:

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

#MAKEYourCareerBETTER

Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

Tech stack

• .NET Core / .NET 8
• Microsoft SQL Server
• Kafka
• Docker
• Kubernetes
• Azure DevOps
• Agile / Scrum
• CI/CD (Jenkins / TeamCity)
• IBM MQ
• Redis