Senior .NET Developer with Fintech

MARGO; Deutschland; Vor Ort; EUR 38.294 - 43.081; Vollzeit

Zusammenfassung

MARGO is seeking a Senior .NET Developer to drive backend solutions within a secure, large-scale enterprise environment. Based in Łódź, Poland, the role offers a hybrid work model requiring only 2 days per month in the office, with a start date of 15 June 2026.

You will design, develop, and maintain critical applications that support sophisticated financial operations. The position emphasizes technical autonomy, robust engineering practices, and architectural input in a modern environment.

Qualifikationen

• Advanced .NET programming and system design expertise.
• Unit testing and test automation to meet financial software standards.
• At least 4 years delivering IT projects using C#, .NET, WCF, SQL, SSIS, HTML, MVC.NET, and ASP.NET.
• Proficiency with MSSQL, Visual Studio, Git, JIRA, MSBuild, TeamCity, and PowerShell.
• Strong English language skills for technical documentation.

Aufgaben

• Backend ecosystem development focusing on .NET/C# and MSSQL/T-SQL to ensure performance, security, and scalability of banking systems.
• Design, develop, and maintain critical applications supporting financial operations.
• Collaborate with engineering teams to deliver robust software in a large-scale enterprise environment.

Kenntnisse

C# / .NET

MSSQL

Unit testing

CI/CD

English

Tools

Visual Studio

Git

JIRA

MSBuild

TeamCity

PowerShell

Jobbeschreibung

Are you a seasoned software engineer looking to drive impactful backend solutions within a secure, large-scale enterprise environment? A leading international financial institution is seeking a Senior .NET Developer to join a highly specialized engineering team. In this role, you will play a pivotal part in designing, developing, and maintaining critical applications that support sophisticated financial operations. This is an exceptional opportunity for a senior professional who thrives on technical autonomy, values robust engineering practices, and is looking for a stable yet modern environment where their architectural input truly matters.

120 zł - 135 zł an hour

Technical Profile & Responsibilities

In this role, your core focus will center on backend ecosystem development (.NET/C# + MSSQL/T-SQL), ensuring high performance, security, and scalability of the banking systems.

Key Responsibilities & Requirements:

• Advanced Software Engineering: Apply deep knowledge of advanced .NET programming, system design methodologies, and user requirements analysis to deliver clean, maintainable code.
• Testing & Automation: Drive quality through rigorous unit testing and test automation methodologies to uphold strict financial software standards.
• Professional Experience: A minimum of 4 years of hands-on experience delivering IT projects using C#, .NET, WCF, SQL, SQL Server Integration Services (SSIS), HTML, MVC.NET, and ASP.NET.
• Tools & Environment: Proficiency with MSSQL, Visual Studio, Git, JIRA, MSBuild, TeamCity, and PowerShell.
• Language Proficiency: Strong command of English, at least sufficient to seamlessly understand and work with complex technical documentation.

Nice-to-Have Qualifications:

• Foundational knowledge of frontend technologies and practical experience with Blazor.
• Hands-on experience or familiarity with containerization and orchestration via Kubernetes (K8s).
• Professional certifications such as MCTS: .NET Framework 4.0, ASP.NET Applications.
• Readiness to validate technical expertise through competency tests during the recruitment process.

Join the Team

This position is based out of our modern office space in Łódź, Poland, and offers an excellent work-life balance through a highly flexible hybrid work model requiring only 2 days per month in the office.

The targeted start date for this vacancy is 15 June 2026.