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# Senior Front End Developer Typescript React

- **Company:** Client Server
- **Location:** Madrid, Spain
- **Salary:** €120,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Algorithmic Trading, Data Structures, Software Design Patterns, Design of User Interfaces, Object-Oriented Software Development, Software Construction, Software Engineering, TypeScript, ReactJS, Information Technology, Front End Software Development
- **Published:** August 26, 2026
- **Apply:** https://www.buscojobs.com.es/senior-front-end-developer-typescript-react-en-madrid-ID-369039917

## About the Role

Senior Front End Developer / Engineer (TypeScript React) *Madrid onsite* to €120k Do you have strong Front End technical skills combined with a consultative approach and strategic, commercial outlook?
You could be joining a FinTech start-up within the consulting division of the Madrid office, the company has secure backing and an established Hedge Fund client as a partner.
As a Senior Front End Developer you'll take ownership of client based technical projects, designing and developing user interfaces and client dashboards for cutting edge trading systems technology.
You'll join a small team and be empowered to work independently and leverage new and emerging technology.
Location: You'll join colleagues in the Madrid office on a full-time basis (Monday to Friday), working hours ********* with some flexibility.
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 have strong front end development experience with TypeScript / JavaScript and React You have advanced communication and client relationship building skills gained within a consultancy environment You have strong business acumen You're a technologist who enjoys collaborating and problem solving You have a good knowledge of modern software engineering best practices 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 What's in it for you: As a Senior Front End Developer you will earn a competitive package: Salary (to €120k, negotiable) Bonus 25 days holiday Generous pension
contribution Continuous career development opportunities Social team atmosphere with a range of events and early finish for drinks on Fridays

## Description

Senior Front End Developer / Engineer (TypeScript React) *Madrid onsite* to €120k Do you have strong Front End technical skills combined with a consultative approach and strategic, commercial outlook?You could be joining a FinTech start-up within the consulting division of the Madrid office, the company has secure backing and an established Hedge Fund client as a partner.As a Senior Front End Developer you'll take ownership of client based technical projects, designing and developing user interfaces and client dashboards for cutting edge trading systems technology.You'll join a small team and be empowered to work independently and leverage new and emerging technology.Location: You'll join colleagues in the Madrid office on a full-time basis (Monday to Friday), working hours ********* with some flexibility.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 have strong front end development experience with TypeScript / JavaScript and React You have advanced communication and client relationship building skills gained within a consultancy environment You have strong business acumen You're a technologist who enjoys collaborating and problem solving You have a good knowledge of modern software engineering best practices 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 What's in it for you: As a Senior Front End Developer you will earn a competitive package: Salary (to €120k, negotiable) Bonus 25 days holiday Generous pension contribution Continuous career development opportunities Social team atmosphere with a range of events and early finish for drinks on Fridays


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