C# senior

MARGO; Deutschland; Vor Ort; EUR 117.000 - 193.000; Vollzeit

Benefits dieser Stelle

Remote work expense reimbursement

Private medical care

Pre-paid lunch card

Pension plan

Multisport Card

Life insurance

Parking in office

Training opportunities

Zusammenfassung

MARGO in Germany seeks a Senior C# Developer to join the Non‑Linear IT team within Global Markets IT. The role focuses on core applications for XVA, liquidity, and financial-resource management, in an agile, distributed setup across London, Paris and Kraków.

You will help migrate back‑end services to a modern event‑driven architecture, deliver high‑quality code, and mentor others while embracing LLMs and agentic AI to boost development and testing in an enterprise setting.

Qualifikationen

• 5+ years of professional experience with C#/.NET (Windows Services, ASP.NET WebAPI, SignalR).
• Strong OOP, design patterns, and SOLID principles.
• Experience with service-oriented architectures and asynchronous messaging (Rebus).
• Advanced MSSQL knowledge; DevOps tools: Git/Bitbucket, TeamCity/Jenkins, Ansible.
• Familiarity with ORMs (e.g., Dapper) and build pipelines.
• Understanding of LLMs and agentic AI in software development.
• Excellent English communication (C1).

Aufgaben

• Design, develop, and evolve high-performance C#/.NET services powering XVA, liquidity, and cash-forecasting workflows.
• Migrate to a modern, event-driven architecture.
• Implement asynchronous, message-driven communication using Rebus.
• Participate in full-cycle DevOps: source control, CI/CD pipelines, and configuration management.
• Provide technical mentorship, code reviews, and champion best practices.
• Deliver high-quality software under tight deadlines with robust documentation.

Kenntnisse

C#/.NET

OOP

SOLID

English comms

Async messaging

Tools

Git/Bitbucket

TeamCity/Jenkins

Ansible

Rebus

Dapper

Jobbeschreibung

Description & Requirements

We are seeking a Senior C# Developer to join the Non‑Linear IT team within Global Markets IT. The team builds and maintains the core applications that support XVA, liquidity, and financial‑resource management.

You will work in an agile, collaborative environment in team distributed between London, Paris and Kraków, delivering clean, maintainable code while helping migrate our back‑end services to a modern event‑driven architecture.

Senior C# Developer

Responsibilities:

• Design, develop, and evolve high‑performance C#/.NET services that power XVA, liquidity and cash‑forecasting workflows.
• Contribute to the migration to a modern, event‑driven architecture.
• Implement asynchronous, message driven communication using Rebus and ensure data integrity
• Participate in full‑cycle DevOps processes: source control (Bitbucket/GIT), CI/CD pipelines (TeamCity, Jenkins), and configuration management (Ansible).
• Apply knowledge of Large Language Models (LLMs) and agentic AI to improve coding efficiency, code review, and automated testing within an enterprise setting.
• Provide technical mentorship, conduct code reviews, and champion best‑practice patterns (OO design, SOLID, clean architecture).
• Deliver high‑quality software under tight deadlines while maintaining attention to detail and robust documentation.

Requirements:

• 5+years of professional experience with C#/.NET (Windows Services,ASP.NETWebAPI, SignalR).
• Strong command of Object‑Oriented Programming, design patterns, and SOLID principles.
• Proven experience with service‑oriented architectures and asynchronous messaging (Rebus).
• Advanced knowledge of MSSQL and hands‑on with DevOps tools: Git/Bitbucket, TeamCity/Jenkins, Ansible.
• Familiarity with ORM libraries (e.g., Dapper) and version‑controlled build pipelines.
• Understanding of the capabilities of LLM's in the software development process with practical experience of agentic AI engineering in an enterprise environment.
• Excellent communication skills in English (C1)

Nice‑to‑Have:

• Front‑end development experience with HTML, JavaScript/TypeScript, React, Redux.
• Financial domain knowledge:
  • 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

We offer:

• Equivalent for remote work expenses (120 PLN per month)
• Stable employment in the international company
• Fully paid private medical care for employee
• Pre‑paid lunch card
• Employee Pension Plan
• Co‑financed Multisport Card
• Life insurance
• Car parking availability in the office building
• Trainings and development opportunities

170 zł - 190 zł an hour