Fullstack .NET Developer (Angular)

Unleash the Power of High-Volume Payment Systems — Build the Future of Digital Finance!

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

As a Mid-Level Fullstack .NET Developer – Angular & Payment Systems, you will be working for our client, a leading online banking organization dedicated to delivering secure and innovative digital financial services to a broad customer base. Join a dynamic team responsible for developing and maintaining mission-critical card processing platforms that handle authorization, settlement, and integrations with value-added services. Focused on high availability, high volume processing, your work will impact hundreds of thousands of daily transactions, where reliability, performance, security, and regulatory compliance are paramount.

Your main responsibilities:

• Develop and maintain .NET applications within the payment card domain

• Design and implement new features in line with business needs and compliance standards

• Integrate applications with external systems using REST, SOAP, and messaging queues

• Optimize system performance, scalability, and security in high-availability environments

• Collaborate with business analysts, architects, and QA teams within Agile/Scrum frameworks

• Participate in system and user acceptance testing (SIT, UAT), conduct code reviews, and produce technical documentation

You're ideal for this role if you have:

• 3+ years of experience in software development using C# and .NET (Framework and/or Core)

• Strong knowledge of ASP.NET Core, Angular, Web API, Entity Framework, LINQ, Dapper, and SQL Server (T-SQL), including query optimization

• Solid understanding of software engineering best practices, including SOLID principles, design patterns, and unit testing with xUnit or NUnit

• Hands-on experience with system integrations using REST, SOAP, JSON, and XML

• Experience working in Agile environments with Jira, Git, CI/CD pipelines, and TeamCity

It is a strong plus if you have: (optional)

• Experience in the payment cards domain or related payment solutions

• Knowledge of Docker, Kubernetes, and microservices architectures

• Experience in designing and delivering complex, distributed systems

Language Required for the role:

• Polish: Communicative level

Eligibility to work on this role:

• 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 in English or Polish, along with a statement confirming your consent to the processing and storage of your personal data.

We offer you: 

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. The offer includes: 

• Stable and long-term cooperation with very good conditions. 

• Enhance your skills and develop your expertise in various industries. 

• 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 & remote work. 

You can report violations in accordance with ITDS’s Whistleblower Procedure available here. 

Ref. number  8195