Senior Java / Spring Boot / TypeScript (Angular or React) / Kafka Developer

Alten, the house of engineers, who are we?

Founded in 1988, ALTEN is a world leader in engineering and technology consulting. Present in more than 30 countries, the group supports large companies in their innovation, R&D, and digital transformation projects. With several tens of thousands of employees across the world, ALTEN operates in strategic sectors such as: Banking & Insurance

Industry & Manufacturing

Energy

Telecommunications

Retail & Distribution

Aerospace & Defense

Life Sciences

In Boulogne-Billancourt, at the heart of the Île-de-France technological ecosystem, ALTEN develops its IT & Digital expertise around ERP, data, cloud, and critical systems. Joining ALTEN means joining a high-growth group, recognized for its operational excellence, its capacity for innovation, and its support for talent.

Why join us?

A strong CSR approach: our engineers work on projects that contribute to a better future. Also, ALTEN Group is a signatory and member of several programs in favor of the environment (Planet Tech’Care, La Charte de l’ingénierie, Climate ambition accelerator)

The skills of our engineers at the heart of our concerns: everyone's skill development is optimized throughout your career path.

High corporate culture: Unifying events, solidarity actions, innovation webinars, various challenges … Experience a stimulating environment where you can share your talents and your passions.

As part of strategic digital transformation projects for our key accounts, we are looking for a Senior Full Stack Java / TypeScript Developer. You will work on: The design and development of microservices architectures in Java / Spring Boot

Front-end development in TypeScript (Angular or React)

The implementation and integration of event-driven flows via Kafka

The design and optimization of REST APIs

Participation in technical architecture choices

Improving application performance, scalability, and resilience

Implementation of best practices (Clean Code, TDD, code review)

Collaboration in an Agile environment (Scrum / SAFe)

Technical mentoring of more junior developers

Graduate of an engineering school or Master's degree (Bac+5) in computer science

Minimum 7 years of experience in Java development

Excellent mastery of: Java 11+ / Spring Boot

TypeScript (Angular or React)

Kafka (event-driven architecture)

Good knowledge of microservices architectures

Experience with relational databases (PostgreSQL, Oracle, MySQL)

Mastery of CI/CD environments (Git, GitLab CI, Jenkins…)

Knowledge of containerized environments (Docker, Kubernetes) is appreciated

Professional English required