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Ubique Systems

Senior Full Stack Developer

Hybrid

Paris, France

Senior

Freelance

11-03-2026

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Skills

Java JavaScript TypeScript GitHub CI/CD DevOps Docker Kubernetes Monitoring Jenkins Scrum Architecture Linux git Azure react ReactJs Agile Microservice JavaScript/TypeScript Spring Redux Spring Boot Maven CI/CD Pipelines Elastic Stack Microservices GitHub Actions

Job Specifications

Job Title: Senior Fullstack Developer

Location: Paris, France - Hybrid: 4 Days to Office Every Week

Duration: 12 Months - FTC

Employment Type: Fixed Term Contract - FTC

Roles & Responsibilities:

The Senior Full‑Stack Developer contributes to the design, development, and operation of modern Java/Spring and React/TypeScript applications within a scalable, cloud‑aligned, service‑oriented architecture. The role involves end‑to‑end delivery across back end, front end, CI/CD, testing, and deployment activities. It includes maintaining production-grade platforms, supporting qualification and production releases, and ensuring high reliability and secure engineering practices. The developer collaborates with multi‑disciplinary teams (development, data, operations, QA) in an Agile/Scrum environment. The role also supports platform evolution, documentation, and continuous improvement of engineering processes.

Responsibilities

Design, develop, and enhance Java/Spring Boot microservices and React/TypeScript front‑end components.
Build, deploy, and operate applications on Kubernetes/AKS, ensuring performance, resilience, and security.
Develop APIs and integrations, including solutions leveraging Azure cloud services and Azure Data Lake (where required).
Contribute to CI/CD pipelines, unit testing, integration testing, code quality enforcement, and secure coding practices.
Support deployments to qualification and production environments, assist in functional testing, bug fixing, and production support.
Maintain and evolve platform monitoring and alerting capabilities (where applicable) including Elastic Stack–based observability.
Participate actively in Agile/Scrum ceremonies and maintain clear technical and functional documentation.

Mandatory Skills

Backend (Java/Spring)

Strong expertise in Java, Spring Boot, REST API design, distributed systems, and production‑grade cloud applications.
Experience designing secure, scalable microservice architectures with strong operational discipline.

Frontend (React)

Proficiency in ReactJS, Redux, JavaScript/TypeScript, and UI unit testing frameworks (Jest, Enzyme).

Cloud & Platform

Hands‑on experience with Azure cloud services.

Experience with Kubernetes / AKS, Docker, and Linux environments.

DevOps & CI/CD

CI/CD tooling (e.g., Jenkins, GitHub Actions), Git, Maven, Nexus.
Strong understanding of DevOps practices and operational lifecycle management.

Architecture & Engineering

Knowledge of Hexagonal / DDD architecture concepts.
Strong analytical, debugging, and problem‑solving skills.
Unit testing, integration testing, and coding standards compliance.

About the Company

Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment, human resource management, vendor management, and outplacement services and software development on a global basis, with an objective to adopt the flexible global business practices that today enable companies to operate more efficiently and produce more value. We're a global leader in business and technology services, helping our clients bring the fut... Know more