About the Role
Company Overview
Coexya, a leader in digital solutions and multi-specialist consultancy (advisory, integration & development), employs over 950 professionals across Lyon, Paris, Rennes, Brest, and Lille. The company supports enterprises in their digital transformation while contributing to societal progress in areas such as health, environment, and responsible digital practices.
In 2024, Coexya joined the Talan Group — an international consultancy and technology expert accelerating client transformation through innovation, technology, and data.
Coexya by Talan is committed to diversity and inclusion: all positions are open to people with disabilities, and reasonable accommodations are provided throughout the recruitment process and career progression.
Job Description
Position Title: GIS Developer (F/H) – Develop an AI-Assisted SLD Generation Web Module
Context
Coexya’s web-based SIG platform aims to make geospatial data sharing more accessible and efficient. To further enhance data visualization, the company seeks to integrate an AI-assisted feature for generating cartographic styles.
This project involves developing a web module that automatically generates SLD (Style Layer Descriptor) files based on:
Data layer characteristics (attributes, geometry types, values, etc.)
Natural language instructions from users
The generated styles must comply with the SLD standard and be directly usable by the platform’s mapping services.
Your Missions
Study and select the technical framework for module development and AI integration
Develop generation and validation mechanisms for AI-generated SLD files
Integrate the module into existing platform mapping components
Objectives
Full-stack development
GIS technology
Generative AI
Tool adaptation to user needs
Team collaboration
Supervision & Support
Design phase guided by a technical expert from the team
Implementation led by a lead developer
Oversight by the platform development manager
Qualifications
Technical Skills
Knowledge of TypeScript or Java
Solid understanding of object-oriented programming
Personal Attributes
Team spirit and logical thinking
Autonomy, methodical approach, and organizational skills
Technical Environment
TypeScript
Java
HTML/CSS
Angular
Docker
OpenLayers
CI/CD pipelines
Why Join Coexya by Talan?
Part of the international Talan Group — a recognized leader in tech and consulting with socially impactful projects
A supportive work environment rated highly by employees (72% recommend it)
Low turnover (<15%) and high average tenure (5 years)
Personalized onboarding over several months, including a welcome pack
Proximity management, regular training (e.g., Escales by Coexya, Coexya Academy), and internal mobility programs
Pleasant office environment in Lyon: multimodal access (10 min from public transit), shared library, on-site gym, urban garden, food trucks, and internal events
Sustainable mobility program: e-bikes, e-cars, carpooling, and mobility allowance
30% of employees are shareholders, reinforcing collective commitment
Recruitment Process
Phone pre-screening with the recruitment team (if CV is selected)
Peer interview to align on expectations and role vision
Final interview with your future manager (BU Director) to discuss career aspirations and opportunities
The entire process is designed to be swift — typically completed within 10 days from first contact to offer.
Location
Coexya – Lyon Office
9 avenue Charles de Gaulle
69370 Saint-Didier-au-Mont-d’Or, France