Ipsos Synthesio brings together data from social networks, press articles, forums, search engines, and more—processing over 70 million mentions daily and storing 3PB+ of data! Backed by AI models, we empower teams with customizable dashboards and real-time insights. 

At Ipsos Synthesio, you’ll join a highly talented R&D team that values collaboration, creativity, and innovation. Together, we deliver top-tier solutions while maintaining an exceptional company culture. 

What You’ll Do 

Here’s a glimpse into your exciting journey with us: 

• Innovate: Build sleek, modern user interfaces using ReactJS and Typescript in a clean, scalable JavaScript ecosystem. 

• Visualize Data: Create intuitive data visualizations, dashboards, and UX components that simplify the complexity of Big Data. 

• Collaborate Cross-Functionally: Work closely with Product, Design, Backend, QA, Data Engineers, and Data Scientists to shape impactful features. 

• Own Your Work: Design, develop, and test components with robust tools like Vitest, Playwright… Your code is yours to perfect and optimize! 

• Drive Efficiency: Contribute to our continuous integration, error-tracking, and agile development processes. 

• Learn and Grow: Rotate between frontend engineering projects and explore new skills by collaborating with different teams. 

Why Join Us?

• Big Data Playground: Dive into massive datasets (70M+ mentions daily) and work with cutting-edge AI models.

• Work-Life Balance: Enjoy 2 remote days per week from our Gentilly-based office.

• Dynamic Culture: Flat hierarchy, regular team-building, and a collaborative environment.

• Continuous Growth: Access training and “outside the roadmap” projects during work hours.

• Perks & Community: On-site canteen, healthcare, fun groups (CrossFit, jogging, board games), and team events.

Our Values

• Win as One: Support, humility, and team spirit drive us forward together.

• Ownership: Define your own schedules and methodologies (Scrum, Kanban, etc.).

• Test & Learn: Embrace failure as a step to success and grow from every challenge.

• Listen Up: Every voice matters. We learn more by listening and sharing.

Technical Skills: 

• Computer Science background. 

• Comfortable with HTML/CSS and JavaScript (Typescript is a plus) 

• Some experience with ReactJS or other front-end frameworks. (Projects are ok) 

• Curiosity about REST APIs and component-based architectures 

• Having a culture of testing your code (Vitest, Playwright) 

• Knowledge version control (Git) 

Soft Skills: 

• Interested in multicultural companies 

• Intellectual curiosity and passion to discuss consequences of a design choice 

• Good communicator, self-starter and collaborative enthusiast 

• Interested in understanding user needs 

• Rigour and strong appetite for software quality 

• Fluent in French and good English level

Step 1: 30-minute screening call with a Lead or a Manager. 

Step 2: 60-90 minute technical interview with some engineers of the team. It includes a situational exercise (video call possible) 

Step 3: Optional meet & greet (30 minute each) with various members of the team (Product Managers, Site Reliability Engineers, and Front-end engineers…) (video call possible) 

Step 4: Proposal: Receive your offer and begin your adventure!