Senior C# Developer witch Fintech experrience

REQUIRED TECHNICAL COMPETENCIES:

• Deep understanding & experience: OOP, patterns, principles. 
• Deep understanding & experience: .NET C# and its ecosystem. 
• Deep understanding & experience: service-oriented architectures. 
• Deep understanding & experience: MS SQL. 
• Demonstrable experience: DevOps tools. 
• Understanding of LLM capabilities in software development; practical experience with agentic AI engineering in an enterprise environment. 

NICE TO HAVE:

• Web development experience: HTML, JavaScript / TypeScript, React, Redux. 

CONDUCT & ATTITUDE EXPECTATIONS:

• High autonomy combined with excellent teamwork skills. 
• Excellent communication, analytical, and organisational skills. 
• Attention to detail (especially under time pressure). 
• Proactive, flexible approach to daily engineering challenges. 
• Motivation to work directly with front-office IT. 
• Integrity and discipline. 
• Role model supporting a culture of good conduct. 
• Proactivity, transparency, and accountability in managing conduct risks. 
• Considering the impact of decisions on colleagues, partners, and clients; escalation in case of doubts. 

ROLE: Senior C# Developer with Fintech experience RATE: Up to 230 PLN/h (B2B Contract) WORK MODEL: 100% Remote (from Poland) ️ TECH STACK: C# .NET, MS SQL, ASP.NET Web API, Event-Driven / Message-Driven (Rebus), ORM (Dapper), DevOps

On behalf of our client – a global financial institution – we are looking for an experienced specialist for the position of Senior C# Developer .

ABOUT THE PROJECT & TEAM: You will join a distributed, international team responsible for the development of core systems in the areas of XVA, Liquidity, and Financial Resource Management. The project is currently at an exciting turning point – migrating to a modern, highly advanced event-driven architecture on the back-end side. The developed UI tools support the daily operations of hundreds of users in a dynamic market environment. We work in a collaborative, agile environment with a strong emphasis on clean code and software craftsmanship.

⚙️ TECH STACK:

• Language & Frameworks: C# .NET, Windows Services, ASP.NET Web API, SignalR 
• Communication: Asynchronous message-driven communication (Rebus) 
• Databases & ORM: MS SQL, ORM (Dapper) 
• Tools & DevOps: GIT (Bitbucket), TeamCity, Jenkins, Ansible 

FUNCTIONAL / FINANCIAL KNOWLEDGE: Candidates are required to have expertise in at least 2 areas from the following list:

• Financial products (Listed / OTC) 
• PnL Explain, risks (Delta, Gamma, Theta, Vega...) 
• XVA (CVA, FVA, ColVA...) 
• Liquidity Risk (RNFB, NSFR...) 
• Cash Forecasting 
• Balance Sheet Metrics (Leverage Exposure...) 
• Pre-trade calculation and booking workflow 

,[] Requirements: C#, MS SQL, .NET, Web API, ORM, DevOps, Backend, UI, Clean Code, Windows, SignalR, Git, Bitbucket, TeamCity, Jenkins, Ansible, OOP, Service-oriented architecture, AI, Forecasting, Web development, HTML, JavaScript, TypeScript, React, Redux