Coexya

About the Company

Coexya has been an independent entity since October 1st 2020 when it was acquired by the operational management team with the support of the European private equity group Argos Wityu, once part of Sword Group's French IT business created in November 2000.

Coexya's mission is to continue and accelerate the growth of its IT activities to become a major player in the valuation of data through its specialisations.

Coexya covers six fields of expertise: Customer experience, content & modern workplace, health, legal, location intelligence and smart data. Coexya works with more than 370 clients.

Created in November 2000, the company currently counts with more than 710 employees in France (Lyon, Paris and Rennes). On November 30, 2021, Geomod joined Coexya.

Listed Jobs

Company Name

Coexya

Job Title

Développeur F/H

Job Description

**Job Title:** Mobility Account Service Developer (Java/React) **Role Summary:** Develop and deliver a unified Mobility‑as‑a‑Service (MaaS) account platform within an agile Business Unit. Design, implement, and secure both back‑end and front‑end components using Java, Spring Boot, and modern JavaScript/TypeScript frameworks, while collaborating closely with a technical lead and project manager. **Expectations:** - Proficient in Java and a JavaScript/TypeScript framework. - Ability to propose optimal technical solutions and take initiative. - Strong teamwork, logical thinking, and eagerness to learn business domain concepts. - Understand and translate business requirements into technical designs. **Key Responsibilities:** - Contribute to functional specifications and solution design. - Implement security controls for the service. - Design, code, test, and deploy backend modules (Java/Spring Boot) and frontend modules (ReactJS). - Suggest and evaluate technical alternatives to improve quality and performance. - Participate in agile ceremonies and maintain close communication with the technical referent and BU project manager. **Required Skills:** - Java (Core, OOP) and Spring Boot. - JavaScript/TypeScript with ReactJS. - Docker containerization; basic Kubernetes knowledge. - Version control (GitLab) and code quality tools (SonarQube). - Familiarity with mobile development concepts (Android, Kotlin, Flutter, iOS) is a plus. - Agile development methodology (Scrum/Kanban). - Problem‑solving, communication, and collaborative skills. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent professional experience). - Relevant certifications (e.g., Oracle Certified Java Programmer, Spring Professional, or comparable) are advantageous but not mandatory.

Saint-didier-au-mont-d’or, France

Hybrid

16-12-2025

Company Name

Coexya

Job Title

Développeur.se SIG F/H

Job Description

**Job Title:** GIS Developer **Role Summary** Develop and maintain customized geographical information systems (GIS) for mapping, spatial analysis, and geospatial data integration. Focus on web and mobile platforms, supporting domains such as energy, transport, urban planning, ecology, and digital twins. **Expectations** Minimum 2 years of experience in Java or JavaScript. Proficiency in GIS software (e.g., ArcGIS, QGIS) and relational databases (PostgreSQL, Oracle). Strong technical curiosity, collaboration skills, and attention to detail. **Key Responsibilities** - Analyze project requirements and design technical solutions. - Develop GIS applications and data processing workflows (web/mobile). - Test, debug, and optimize geospatial systems. - Collaborate on technical evaluations and architectural decisions. - Integrate GIS tools with backend databases and APIs. **Required Skills** - Java, JavaScript, Python, or equivalent programming languages. - ArcGIS Desktop, ArcGIS Server, QGIS, GeoServer, OpenLayers. - Database management (PostgreSQL, Oracle, PL/SQL, SQL). - Frontend frameworks: HTML, React, Angular. - APIs/server tools: RESTful, IIS, Apache Tomcat. - Version control: Git, GitLab, Jira. - Agile methodology and development environments (Eclipse, JetBrains). **Required Education & Certifications** Bachelor’s degree in computer science, geomatics, or related field. Familiarity with geospatial workflows and data standards preferred. Certification in GIS (e.g., Esri) is an advantage.

Paris, France

Hybrid

Junior

16-01-2026

Company Name

Coexya

Job Title

Développeur fullstack expérimenté F/H

Job Description

Job Title: Senior Fullstack Developer (Geographic Information Systems) Role Summary: Design, develop, and maintain large‑scale web and mapping applications for GIS solutions. Lead technical implementation from concept through delivery, ensuring quality, performance, and scalability while collaborating with cross‑functional teams. Expectations: - Minimum 2 years of full‑stack development experience, preferably on enterprise or GIS projects. - Proven ability to produce production‑ready code and lead technical discussions. - Strong understanding of Git, CI/CD pipelines, and DevOps practices. Key Responsibilities: - Architect and build responsive web front‑ends using React and TypeScript (ArcGIS Experience Builder). - Develop robust back‑ends in Java or .NET (ArcGIS Enterprise) and expose APIs. - Integrate and manage GIS data layers, services, and spatial analytics. - Implement and maintain CI/CD pipelines to accelerate delivery and ensure code quality. - Write and maintain technical documentation, test plans, and conduct unit/integration tests. - Participate in code reviews, peer mentoring, and knowledge sharing sessions. - Conduct continuous learning and technology scouting in GIS, web development, and related tools. Required Skills: - Front‑end: React, TypeScript, HTML5, CSS3, ES6+. - Back‑end: Java (Spring) or .NET (C#) with RESTful services. - GIS: ArcGIS Platform (Experience Builder, Enterprise) and spatial data handling. - DevOps: CI/CD tools (e.g., Jenkins, GitLab CI, Azure DevOps), containerization (Docker), automated testing. - Version control: Git, branching strategies, pull request workflow. - Soft skills: strong analytical thinking, meticulous quality focus, excellent communication, and teamwork capabilities. Required Education & Certifications: - Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field (not explicitly required but preferred). - Relevant certifications (e.g., ArcGIS Professional, Java Developer) are beneficial but not mandatory.

Saint-didier-au-mont-d'or, France

On site

Junior

27-01-2026