> Markdown version of [/jobs/ext/1952341-c-software-engineer-net-quant-trading](https://www.wearedevelopers.com/jobs/ext/1952341-c-software-engineer-net-quant-trading). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # C# Software Engineer .Net - Quant Trading - **Company:** Client Server - **Location:** Humanes de Madrid, Spain - **Salary:** €150,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), .NET Framework, Data Analysis, C Sharp (Programming Language), C++ (Programming Language), Computer Programming, Distributed Systems, Python (Programming Language), Standard Sql, Software Engineering, SQL Databases, Web Services, Data Processing, .NET Core - **Published:** August 6, 2026 - **Apply:** https://www.buscojobs.com.es/c-software-engineer-net-quant-trading-en-humanes-de-madrid-ID-365703684 ## About the Role About YouYou have studied at a top 10 university in Spain (or top 200 globally) and have achieved 9.0 and above in Bachillerato and 7.0 and above in University - Mathematics preferredYou have commercial experience in a Quantitative Developer position at a buyside institution or Tier 1 bankYou have advanced C# . Net programming skills including . Net Core (will also consider Java, Python or C++ background if happy to use C# going forward)You have a strong knowledge of SQL databasesYou have strong mathematics knowledgeYou're entrepreneurial with good business acumen, keen to take ownership and lead projectsYou're collaborative, enjoy problem solving and sharing ideasYou have fluent English language skillsWhat's In It For YouAs a C# Software Engineer / Developer you will receive a competitive package:Salary (to €150,000)Bonus25 days holidayBupa healthcareGenerous pension contributionContinuous career development opportunitiesSocial team atmosphere with a range of events and early finish for drinks on Fridays ## Description C# Software Engineer / Developer Madrid onsite to €150,000Join a highly regarded Financial Technology Consultancy developing sophisticated software used by Investment Banks, Hedge Funds and Asset Managers.This is an opportunity to work at the intersection of software engineering, quantitative finance and large scale distributed systems, building the platforms that bring complex trading and risk models into production.As a C# Software Engineer you will design and develop high performance applications, APIs and services that support cross asset trading, analytics and risk management workflows.Collaborating with quantitative researchers and financial specialists, you'll tackle challenging technical problems involving scalability, performance, data processing and system design, using modern C# and SQL technologies.Location:You will be based in Madrid on a fulltime basis (Monday to Friday).About YouYou have studied at a top 10 university in Spain (or top 200 globally) and have achieved 9.0 and above in Bachillerato and 7.0 and above in University - Mathematics preferredYou have commercial experience in a Quantitative Developer position at a buyside institution or Tier 1 bankYou have advanced C# .Net programming skills including .Net Core (will also consider Java, Python or C++ background if happy to use C# going forward)You have a strong knowledge of SQL databasesYou have strong mathematics knowledgeYou're entrepreneurial with good business acumen, keen to take ownership and lead projectsYou're collaborative, enjoy problem solving and sharing ideasYou have fluent English language skillsWhat's In It For YouAs a C# Software Engineer / Developer you will receive a competitive package:Salary (to €150,000)Bonus25 days holidayBupa healthcareGenerous pension contributionContinuous career development opportunitiesSocial team atmosphere with a range of events and early finish for drinks on Fridays#J-*****-Ljbffr ## Related Videos - [Functions Triggers using Azure Event Grids in Azure Blob Storage](https://www.wearedevelopers.com/videos/47-functions-triggers-using-azure-event-grids-in-azure-blob-storage) - [How building an industry DBMS differs from building a research one](https://www.wearedevelopers.com/videos/768-how-building-an-industry-dbms-differs-from-building-a-research-one) - [Developer Time Is Valuable - Use the Right Tools - Kilian Valkhof](https://www.wearedevelopers.com/videos/1792-developer-time-is-valuable-use-the-right-tools-kilian-valkhof) - [Your next 10x engineer isn't in your city. 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