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United Fintech

Front-End Developer - Madrid, Spain

United Fintech
Spain · Full-time · Entry

Athena Systems ( Unitedfintech/Athena ) is seeking a Front-End Developer to join our team in Madrid.

We are looking for motivated and enthusiastic individuals with a "getting-things-done" mindset to reinforce the team on strategic projects with our clients.

You'll be responsible for building modern and efficient interfaces, collaborating with international teams, and contributing to high-performance product development within our .

NET environment.

What you'll do:

  • Develop modern, efficient, and scalable user interfaces using front-end frameworks such as React , Angular , or Blazor .
  • Build components and application logic using HTML , CSS , JavaScript , and TypeScript .
  • Work closely with our backend team within the .

NET ecosystem to deliver seamless integrations.

  • Apply best practices using SVN for version control.
  • Participate in UX improvements, feature development, and performance optimization.
  • Collaborate with international teams to deliver new features and troubleshoot issues.
  • Contribute to CI/CD pipelines and support automated deployment workflows.
  • (Optional) Assist with build automation using Jenkins .
  • Utilize Docker, with basic knowledge of Kubernetes , to support development and deployment workflows.
  • Find innovative ways to leverage AI for the above objectives.

What we're looking for: 5+ years of front-end development experience.

Strong expertise in at least one modern framework: React, Angular, or Blazor (knowledge of multiple is a plus).

Proficiency with HTML, CSS, JavaScript, and TypeScript .

Experience working within .

NET environments is a plus.

  • Familiarity with CI/CD practices , and optional experience with Jenkins .
  • Knowledge of Docker and a fundamental understanding of Kubernetes .

Fluent English (required), Spanish is optional.

Proactive, detail-oriented, and comfortable working across regions.

Why Athena: You will play a key role in designing and developing front-end solutions used by clients worldwide.

Athena offers a dynamic environment, meaningful technical challenges, and clear opportunities for career growth within the United Fintech group.

To apply, please send your CV to Julia Barcala (******)

Key Skills

Ranked by relevance

javascript kubernetes typescript angular jenkins docker react cicd css svn ai ux
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Posted
Jan 07, 2026
Type
Full-time
Level
Entry
Location
Madrid

Industries

Armed Forces

Categories

Business Development

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