Senior C# Engineer — FinTech, Hybrid Work & Growth

Citigroup Inc.; United States; Híbrido; USD 120.000 - 180.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

27 days leave

Performance bonus

Medical & Life Insurance

Employee Assistance Program

Pension plan

Parental leave

Employee discounts

Learning resources

Descripción de la vacante

Citigroup Inc. is seeking a skilled engineer with broad technical capability and specialist knowledge of .NET Framework and .NET 5+. You will work on large, distributed teams to build high-volume, low-latency financial systems and trading platforms.

The role emphasizes unit testing, performance tuning, REST/OpenAPI, and CI/CD with Git; collaboration across global teams, adherence to design patterns, and ongoing learning in a dynamic Citi Tech environment with hybrid work options.

Formación

• Proven experience in developing large, complex systems.
• Strong C# and .NET framework knowledge.
• Experience with unit testing frameworks and performance profiling.
• Familiarity with REST, OpenAPI, TLS and security basics.

Responsabilidades

• Develop high-volume financial systems and trading platforms.
• Design, implement, test, and optimize software components.
• Collaborate with global teams and participate in code reviews.
• Analyze performance bottlenecks and debug production issues.

Conocimientos

C# expertise

NET Framework 4.5.2+

NET 5+

Unit testing

REST/OpenAPI

CI/CD (Git)

Financial systems

Linux

Python/Java

Troubleshooting

Herramientas

NUnit

xUnit

Shouldly

Git

Descripción del empleo

Citigroup Inc. is seeking a skilled engineer with broad technical capability and specialist knowledge of .NET Framework and .NET 5+. You will work on large, distributed teams to build high-volume, low-latency financial systems and trading platforms.

The role emphasizes unit testing, performance tuning, REST/OpenAPI, and CI/CD with Git; collaboration across global teams, adherence to design patterns, and ongoing learning in a dynamic Citi Tech environment with hybrid work options.