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# Software Engineer

- **Company:** MongoDB
- **Location:** Madrid, Spain
- **Salary:** €126,000.0
- **Contract:** Permanent contract
- **Skills:** ASP.NET, .NET Framework, Agile Methodology, C Sharp (Programming Language), Databases, Concurrent Computing, Data Structures, Distributed Systems, Entity Framework, High-Level Architecture, MongoDB, Open Data Protocol, Open Source Technology, Free and Open-Source Software
- **Published:** July 11, 2026
- **Apply:** https://www.jobleads.com/es/job/e83b47865f967d5506e9c3ac8cc3b4864

## About the Role

* Advocate for testing and agile development best practices
 * Can make pragmatic design tradeoffs while balancing features, maintainability, and delivery time
 * Are fascinated by, and have experience working with concurrency, parallelism and distributed systems
 * Communicate well, internally and externally, both in writing and face-to-face
 * Enjoy collaborating with and elevate the skills and expertise of those around you
 * Are excited about open source software development and communities
 * Are excited by our mission and values

For this role you must have…

 * Have 5+ years of experience writing high-quality software
 * Have substantial, demonstrable experience writing high-quality software in C#
 * Proficiency in data structures, algorithms, networking, and concurrent programming
 * Experience with databases, relational or non-relational
 * Good written and spoken English communication skills

## Description

The Database Experience team builds the libraries and tools that developers use day-to-day working with MongoDB. Our mission is to increase developer adoption, satisfaction and retention by providing a reliable, enjoyable interface for developers and other end-users., * Familiarity with the latest .NET frameworks and modern .NET paradigms such as ASP.NET Core, .NET Aspire, Native AOT, source generators, spans/memory

 * Experience working with MongoDB and the document model
 * A diversity of experience writing tests for the software you developed (unit, integration, end-to-end, performance, etc.)

You'll be on a team responsible for…

 * .NET/C# Driver for MongoDB
 * MongoDB Entity Framework Provider
 * MongoDB OData integration
 * MongoDB Analyzer
 * Contributions to the third-party open source libraries that we depend on
 * Testing, delivering, and supporting our libraries and tools across multiple operating systems and versions of MongoDB, * Working with our Product and Server teams on designs and specifications for new customer-facing MongoDB features
 * Investigating bugs and support requests from commercial and open source customers for the libraries we maintain
 * Seeking out speaking or writing opportunities to engage with our developer community
 * Mentoring junior engineers in both technical and non-technical professional skills


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