Senior .NET Developer – Financial Services and Payment Systems

About the project

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.

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

This is how we organize our work

This is how we work

• at the client's site

Your 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

Our requirements

• 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

Optional

• Certifications or additional skills in related technologies or security standards

What we offer

• Stable and long-term cooperation with very good conditions
• Enhance your skills and develop your expertise in the financial industry
• Work on the most strategic projects available in the market
• Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
• Participate in Social Events, training, and work in an international environment
• Access to attractive Medical Package
• Access to Multisport Program
• Access to Pluralsight
• Flexible hours

Benefits

• access to +100 projects
• access to Pluralsight
• sharing the costs of sports activities
• private medical care
• remote work opportunities
• flexible working time
• fruits
• integration events
• corporate gym
• saving & investment scheme
• no dress code
• coffee / tea
• drinks
• christmas gifts
• birthday celebration
• sharing the costs of a streaming platform subscription

Recruitment stages

• online interview
• online interview

#GETREADY to meet with us!

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people.

We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure

📌 You can report violations in accordance with ITDS’s Whistleblower Procedure available here: https://itds.pl/wp-content/uploads/2025/03/INFORMATION-ON-PROCEDURE-FOR-REPORTING-BREACHES-AND-PROTECTION-OF-WHISTLEBLOWERS-AT-ITDS-POLSKA.pdf

ITDS Polska Sp. z o.o.

ITDS supports financial service providers to take the next steps.

We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.

We see where banks, insurers, payment companies, or fintech can go and how they can get there.

That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.

ITDS in Poland - Pure player in new Technologies & Financial Industry

+300 IT implementation professionals

+20 clients in the Banking, Insurance, Payment & Fintech Industry

ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

This is how we work