We create trust in the digital age with integrated security technologies in three business areas: Digital Security, Financial Platforms and Currency Technology. We are an international technology group and traditional family business with over 14,000 employees in 40 countries. We are looking for a Senior Frontend Software Engineer with +5 years experience, to help us design and ship secure, high-quality Web Applications and TypeScript SDKs. You will own features end-to-end - from APIs and SDK design to polished UIs - while working closely with backend, security and product teams.

This role is idóneo if you care deeply about security, code quality, and thoughtful engineering, and enjoy collaborating with others to build reliable systems.

Build web applications (Node.js, React) that showcase and validate our core product.
Integrate with REST APIs and collaborate closely with backend teams.
testing -
deployment, with security in mind at every step.
Design, develop, and maintain TypeScript SDKs and libraries used by developers.




Contribute to TDD and E2E testing practices.
Strong experience with TypeScript, Node.js and React.
Experience with testing libraries such as jest, vitest, bun.test.
Knowledge of relational databases (e.g. PostgreSQL).
Deploying Next.js applications outside of Vercel (Docker is a big plus).
Experience with messaging platforms like Kafka or RabbitMQ.
Interest in learning Go to contribute to backend services.
You write secure, test-driven code, enjoy collaborating with teammates, and like helping others to grow. Shadow senior engineers and attend product demos.

Participate in secure coding workshops.
Contribute to E2E tests and CI/CD improvements.
deployment).
Propose new test cases and DX or performance improvements.
Mentor newcomers on secure coding fundamentals.
We value thoughtful engineers who care about security, quality, and continuous learning.

📌 Front End Software Engineer - JavaScript (Vitoria-Gasteiz)
🏢 Talent
📍 Vitoria-Gasteiz