Senior Front End Developer

LumRisk Madrid, Community of Madrid, Spain

Senior Front End Developer

LumRisk S.A. is an independent provider of state‐of‐the‐art financial risk consolidation and reporting services to institutional clients. Based in Nyon, Switzerland, LumRisk has developed an interactive web‐based application that provides detailed risk analysis, reporting, and stress testing on client portfolios, based on full position‐level transparency.

In response to significant growth opportunities, LumRisk is looking to hire for its Madrid (Spain) office a Senior Front End Developer.

Responsibilities

Create and implement user interface components using React.js, Next.js, or other related technologies.

Translate user requirements into high‐quality, responsive web applications in collaboration with the development team.

Ensure the technical feasibility of UI / UX designs, optimize application performance, and maintain a clean codebase.

Collaborate with UI / UX designers, backend developers, and data engineers to deliver seamless user experiences.

Consume and integrate REST APIs while following security best practices.

Participate in code reviews, testing, debugging, and continuous quality improvement.

Keep up‐to‐date with the latest front‐end technologies and industry trends.

Qualifications

4+ years of experience with React.js / Next.js and its ecosystem.

Proficiency in responsive web design, modern front‐end best practices, and performance optimization.

Experience with REST API consumption and integration.

Experience with version control systems (e.g., Git) and unit / integration testing.

Knowledge of TypeScript and code‐splitting, lazy‐loading, memoization techniques.

Familiarity with CI / CD workflows, Agile development, and continuous integration.

Bachelor's degree in Computer Science, Software Engineering, or related field.

Fluent in English; additional languages are a plus.

Strong problem‐solving, communication, and teamwork skills.

EU citizenship or a valid work permit to work in the European Union.

Optional Qualifications

Experience with React Native, SQL, Docker, Kubernetes, or data visualization.

Background in finance or experience building financial applications.

EU citizenship or a valid work permit to work in the European Union at the time of application is a pre‐requisite. This position is for our office in Madrid, Spain.

You are a highly motivated, social, creative but pragmatic individual, with the willingness to learn and evolve in an entrepreneurial setting. LumRisk is an ambitious project and a demanding position in a fast‐growing environment offering to take on further responsibilities.

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