Ubique Systems

TRCI-26-05143

Full Stack Developer (Java/Kotlin + React/TypeScript)

Contract Full Stack Developer role in Paris (2 days/week onsite, occasional remote) to build new features for Veolia’s internal GreenPath digital platform (SaaS) that consolidates environmental footprint calculation tools (water/carbon and related indicators). You will work in a Scrum team delivering tested, documented user stories each sprint, contributing to design, development, CI/CD deployments (GitLab, SonarQube), and unit/E2E testing, while collaborating daily with PO, UX, architect, DevOps and Product Manager. Strong Java/Kotlin backend and React/TypeScript frontend skills are required, along with solid engineering best practices, CI/CD proficiency, AI-assisted development usage, and spoken English for some user meetings.

Position summary

Location
France
Workplace
On-site
Employment
Contract
Experience
Minimum 4 years and Maximum 10 years
Apply now

Role overview

Why This Role Matters.

Contract Full Stack Developer role in Paris (2 days/week onsite, occasional remote) to build new features for Veolia’s internal GreenPath digital platform (SaaS) that consolidates environmental footprint calculation tools (water/carbon and related indicators). You will work in a Scrum team delivering tested, documented user stories each sprint, contributing to design, development, CI/CD deployments (GitLab, SonarQube), and unit/E2E testing, while collaborating daily with PO, UX, architect, DevOps and Product Manager. Strong Java/Kotlin backend and React/TypeScript frontend skills are required, along with solid engineering best practices, CI/CD proficiency, AI-assisted development usage, and spoken English for some user meetings.

Your Impact

Deliver Enterprise Value

Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.

Collaboration

Work Across Teams

Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.

Growth

Learn Continuously

Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.

Career Path

Grow With Ubique

Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.

Responsibilities

What You'll Be Doing.

Every role at Ubique contributes directly to solving meaningful business challenges for our clients.

01

In this context, we are looking for an experienced Full Stack Developer to ensure the development of GreenPath's new features.

02

o Puts into production the developments from a CI/CD chain. Developments are evaluated through Sonarqube

03

Is part of an Agile Development team (Scrum Framework), and thus contributes to the successful completion of the team's projects

04

Interacts on a daily basis and through Scrum ceremonies with: the Product Owner, the development team (Full Stack, DevOps), the UX Designer, the architect and the Product Manager

05

Is a source of proposals and provides technical solutions that meet the constraints and commitments of the Programme

06

Participates in defining and applying the team's best practices, skills and AI harness

07

Uses the PC and IDE of your choice (Mac + IntelliJ recommended) with a Copilot license provided by Veolia (token quota). Claude Code and/or Antigravity may be available in the future.

08

2+ years of experience in Java and/or Kotlin development, Spring/Quarkus is a plus

09

Finally, some meetings with users are in English, oral fluency in English is necessary.

10

Development machine and IDE not included (the developer comes with the machine and IDE of his choice - IntelliJ recommended)

Technology stack

Tools & Technologies.

The platforms and technologies you'll use to build modern, enterprise-grade solutions.

01

Java

02

Kotlin

03

Spring

04

Quarkus

05

React

06

TypeScript

07

Git

08

GitLab

09

CI/CD

10

SonarQube

11

GCP

12

Unit Testing

13

E2E Testing

14

Scrum

15

SaaS

16

IntelliJ

17

Copilot

Requirements

Skills & Experience.

We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.

Essential

Required Qualifications

Full stack development (backend + frontend)

Java and/or Kotlin (2+ years)

React (2+ years)

TypeScript

Agile/Scrum delivery (EPICs/User Stories, sprint increments)

Git

CI/CD pipelines

Unit testing

End-to-end (E2E) testing

Technical documentation / code documentation

English oral fluency (for user meetings)

AI-assisted development (e.g., Copilot)

Preferred

Nice to Have

GCP (Google Cloud Platform) knowledge

Spring Framework

Quarkus

SonarQube (code quality gates)

DevOps collaboration

Environmental/impact domain interest

What you'll gain

More Than Just A Job.

We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.

Global Exposure

Collaborate with international clients and multicultural teams on enterprise programmes.

Continuous Learning

Expand your expertise through mentoring, certifications and hands-on project experience.

Career Growth

Take ownership, develop leadership skills and grow your consulting career over time.

Flexible Working

Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.

People First

Join a supportive culture where collaboration, respect and long-term relationships come first.

Enterprise Projects

Work on meaningful technology initiatives for leading organisations across industries.

Apply

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