Fullstack Developer — Remote, International Real-Time Apps

ALTEN Delivery Centre Spain; España; Remote; EUR 42,000 - 64,000; Full time

Benefits offered by this job

Long-term contract

International project

Remote work option

Team integration

Travel opportunities

Training & development

Benefits & compensation

Job summary

ALTEN Delivery Centre Spain is seeking a qualified Fullstack Developer to join an international team and collaborate with engineers worldwide. The role covers frontend in React and backend in Rust/Node.js, API integration, WebSockets, and real-time data visualisations with responsive design.

You'll contribute to secure, scalable solutions with OAuth2/JWT concepts, use Git, Docker, and CI/CD, and participate in training and development. English proficiency (B2+) is required.

Qualifications

• Experience in both frontend and backend development (e.g., React + Rust/Node.js).
• Knowledge of API integration and security principles is a plus.
• Familiarity with RESTful APIs, WebSockets, and CI/CD tooling is beneficial.

Responsibilities

• Collaborate on backend services with Rust and frontend integration.
• Connect frontend and backend via APIs and WebSockets, including device interfaces.
• Implement real-time data visualisations with responsive design and state management.
• Develop security features (OAuth2/JWT) and secure communications.
• Apply Security-by-Design and optimize data access with SQL/NoSQL.

Skills

Frontend & Backend

API Integration

Security by Design

RESTful APIs

Tools

Git

Docker

Postman

Job description

ALTEN Delivery Centre Spain is seeking a qualified Fullstack Developer to join an international team and collaborate with engineers worldwide. The role covers frontend in React and backend in Rust/Node.js, API integration, WebSockets, and real-time data visualisations with responsive design.

You'll contribute to secure, scalable solutions with OAuth2/JWT concepts, use Git, Docker, and CI/CD, and participate in training and development. English proficiency (B2+) is required.