Senior C# Developer

About the role

We are looking for a Senior C# Developer to join our Buenos Aires team and help drive digital transformation in the Oil & Gas industry. You will work on high‑load, micro‑service based solutions that aggregate and manage operational data for our global clients.

Key responsibilities

• Develop and maintain C# applications and web services for data aggregation.
• Design, implement, and integrate new functionality into existing projects.
• Participate in architectural decisions and optimise code performance.
• Refactor code, conduct code reviews and ensure comprehensive test coverage.
• Monitor, troubleshoot and resolve system errors.
• Collaborate with analysts, developers and other specialists to achieve project goals.

Required profile

• Residence in the Greater Buenos Aires area.
• Minimum 5 years of professional C# development experience.
• Strong English communication skills.
• Ability to work both independently and within a team.

Required skills

• C# and the .NET platform.
• PostgreSQL and Microsoft SQL Server.
• Entity Framework and SQL query optimisation.
• Design and implementation of micro‑service architectures.
• Experience with high‑load systems and performance tuning.
• Automated testing and code review practices.

What we offer

• Competitive salary and comprehensive benefits.
• Opportunities for professional growth and development.
• Inclusive and diverse work environment.
• Chance to work on cutting‑edge solutions for the Oil & Gas sector.