Software Engineer C# .Net - Fintech

Client Server; Humanes de Madrid; Presencial; EUR 108.000 - 132.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Salary up to €120k

Bonus

25 days holiday

Healthcare

Pension contribution

Career development

Descripción de la vacante

Client Server in Madrid is seeking a Senior Software Engineer to join a fintech-scale team and own core platform development using C# .NET in a Windows environment. The role focuses on building high‑impact systems, ownership of technical projects, and end‑to‑end delivery in a fast-growing setting.

You should have a top-tier university background with strong math/CS grades, multilingual English, and a passion for solving complex distributed problems.

Formación

• Top university in Spain or top 200 globally; Bachillerato 9.0+ and university CS/Math 7.0+ preferred.
• Technologist who enjoys collaborating and solving problems on complex distributed systems.
• Experience with modern C# .Net; willing to use C# going forward.

Responsabilidades

• Deliver the core platform within a Microsoft environment using the latest C# .Net versions.
• Own technical projects across the full development lifecycle.
• Contribute to growth and progress of the company from ground up.

Conocimientos

C# .Net

OO languages

Full software development lifecycle

Problem solving

Herramientas

Java

C++

Python

Descripción del empleo

Software Engineer / Developer Madrid onsite to €120,000

Are you a back end focused Software Engineer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing FinTech scale-up with solid financial backing, a major Hedge Fund partnership, and ambitious plans for expansion.

What's In It For You

As a Software Engineer / Developer you will earn a competitive package:

• Salary to €120,000
• Bonus
• 25 days holiday
• Healthcare
• Generous pension contribution
• Continuous career development opportunities
• Social team atmosphere with a range of events

Your Role

As a Senior Software Engineer you will collaborate with a small, talented team to deliver the core platform within a Microsoft environment using the latest versions of C# .Net to produce high quality code. You'll take ownership of technical projects, working across the full development lifecycle to understand business needs.

The company has ambitious growth plans, this is a great opportunity to be involved from the ground up and progress your career.

Location

You’ll be based in Madrid on a fulltime basis (Monday to Friday).

About You

• You 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 - Computer Science or Mathematics preferred
• You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems
• You have expertise with modern C# .Net (will also consider other OO languages e.g. Java, C++, Python but you must be happy to use C# going forward)
• You have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle
• You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms
• You're excited to join a start-up in a role that you can shape and influence
• You have fluent English language skills