_This is us_

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX, and UI design, managed services, product development, and software development.

_This is the job_

Our client is an established American leader with decades of experience designing comprehensive, cost‑effective legal and outsourcing solutions for the residential mortgage and consumer credit industry.
_This is you_
- 3-4 years of professional.NET development experience;
- Proficient in C# across.NET Framework 4.8 and some modern.NET (9+) development;
- Practical experience with Entity Framework;
- Strong SQL Server skills: complex queries, joins, CTEs, stored procedures, and query tuning;
Familiar with dependency injection using Unity and Microsoft DI patterns;
Comfortable working in and improving legacy codebases;
- English level - Upper‑intermediate or higher;
- Ability to work US Eastern Time (EST) hours.

Nice-to-have skills:




- Experience integrating third‑party APIs and custom client integrations;
- Background in legal‑tech, service‑of‑process, mortgage, or adjacent domains;
- Experience with document and PDF processing (generation, merging, manipulation);
- Hands‑on experience with Azure services such as DevOps, Application Insights, and Key Vault;
- Practical experience with Claude Code or similar AI code assistants.

_ This is your role_
Build and maintain data layers with Entity Framework and direct SQL Server code;
- Write and optimize complex SQL; tune DB performance;
- Integrate third‑party APIs and custom client services securely and reliably;
Deploy and troubleshoot apps on IIS and on‑prem environments;
- Use logging and telemetry (App Insights or similar) to monitor production;
- Improve legacy code for readability, testability, and maintainability;
- Use AI coding assistants responsibly to boost productivity and val

📌 Middle .NET Engineer (Buenos Aires)
🏢 avenga
📍 Buenos Aires