? Remote – Colombia

We're looking for a Senior .NET Software Engineer to join an international team building and maintaining high-performance applications for the financial industry. In this role, you'll work with modern .NET technologies, optimize large-scale SQL Server databases, develop secure REST APIs, and collaborate with cross-functional teams in an Agile environment.

What You'll Do

- Design, develop, and maintain scalable web applications using C# and ASP.NET Core .
- Optimize complex SQL Server queries, stored procedures, and views for large datasets.
- Build and maintain secure RESTful APIs integrated with third-party banking systems.
- Participate in technical design discussions, code reviews, and architecture decisions.
- Collaborate closely with QA, DevOps, Product Managers, and distributed engineering teams.
- Support frontend development when needed using JavaScript, HTML, CSS , and frameworks like Angular or React .

What We're Looking For




- 5+ years of experience developing applications with C# and ASP.NET Core .
- Strong experience with Microsoft SQL Server and advanced T-SQL .
- Solid understanding of Object-Oriented Programming , SOLID principles , and software architecture.
- Experience building and consuming REST APIs.
- Experience using Git and modern development workflows.
- Familiarity with Agile methodologies.
- English level: Upper-Intermediate (B2+) .

What We Offer
- Competitive salary in USD
- Fully remote position (Colombia)
- Paid Time Off days + all public holidays
- Annual $250 wellness bonus (can be used for health insurance, pets, sports, or wellness activities).
- Sombra University, Platzi, mentorship, and English classes.
- Equipment provided.
- Referral bonus program.
- International projects with modern technologies.

If you're interested, I'd be happy to share more details and schedule a quick chat! ?

📌 Senior .NET/C# Software Engineer (Remote/Colombia)
🏢 Sombra
📍 Colombia