Senior Software Engineer (.NET)

About the Position

Senior Software Engineer (.NET)

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.

Responsibilities

• 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.

Requirements

• 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+).

We Offer

Your time off

• Up to 15 paid vacation days annually
• Additional unpaid days off
• 19 Colombian public holidays

Learning & growth

• Sombra University workshops and internal learning programs
• Tech Communities and knowledge sharing sessions
• Language courses and workshops
• Mentorship opportunities
• Access to the Platzi online learning platform

And even more

• Company-provided work equipment
• Internal referral program
• Bonuses for getting married or the birth of a child
• Sombra events and internal initiatives

About the Company

Our recruitment team will carefully review your profile, and if we see a good match with the role, we’ll reach out to you shortly.

If you don’t hear from us within 5 business days, it means we’ve decided to continue the process with other candidates for this position. Thanks for understanding.

Yeimy Sanchez

Recruitment Specialist

Apply now!

Thanks for applying!

We’ll take a look and get in touch within 7 days if the role feels like a good fit.

Meanwhile, feel free to explore our LinkedIn.

Contact us

Thank you for getting in touch!

We’ve received your message, and a member of our sales team will contact you within 3 business days.

In the meantime, if you have an urgent inquiry, feel free to contact us directly

at [email protected]

We look forward to connecting with you soon!