Jems Group

3 Jobs

640 Employees

About the Company

JEMS is a French company specializing in Big Data. With 900 employees and sales of €93 million, the company is present in 13 French cities, as well as in Switzerland, Belgium, Romania, Spain, Morocco and Tunisia.

JEMS' business is to create, manage and operate our customers' data patrimony, which then becomes a genuine company asset.

We have a unique manufacturing process that enables us to literally industrialize the creation of use cases and innovative services based on AI or pure analytics.
From source to use, we design data-driven services for our key account customers in the banking, insurance, energy, e-commerce, automotive, luxury goods, transport and agritech sectors.

Listed Jobs

Company Name: Jems Group
Job Title: Data Engineer F/H
Job Description: Job title: Data Engineer Role Summary: Design, build, and maintain end‑to‑end data solutions from acquisition through analytics, ensuring data quality, governance, and operational efficiency. Expactations: Deliver innovative, scalable data pipelines; translate business requirements into data governance rules; automate deployment with CI/CD; stay current with emerging data technologies and propose improvements. Key Responsibilities: - Collaborate with business units to define data strategy and architecture. - Extract, transform, and load (ETL) data from diverse sources into data lakes or warehouses. - Implement data quality metrics, monitoring, and governance controls. - Convert business rules into executable data logic and schemas. - Develop and maintain unit, integration, and regression tests. - Deploy and automate solutions using CI/CD pipelines. - Monitor and optimize performance of distributed data processing jobs. Required Skills: - Advanced SQL; proficient in a procedural language (Python, Java, or Scala). - Experience with distributed computing frameworks (e.g., Spark, Hadoop). - Familiarity with CI/CD tools (Git, Jenkins, SonarQube, JUnit). - Hands‑on with a major cloud platform (AWS, GCP, Azure) or a Big Data distribution (Hortonworks, Cloudera, Datastax). - Strong understanding of relational and NoSQL data modeling. Required Education & Certifications: - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. - Minimum 3 years of professional data engineering experience in project environments. - Certifications in cloud platforms or big data technologies are a plus.

Lyon, France

On site

16-10-2025

Company Name: Jems Group
Job Title: Developpeur Back-End Java F/H
Job Description: **Job Title**: Java Back-End Developer **Role Summary** Lead the development, testing, and maintenance of robust back-end solutions while collaborating with cross-functional teams to deliver scalable and high-quality applications. Focus on technical design, code optimization, and adherence to industry best practices. **Expectations** - Deliver well-documented, maintainable code aligned with user and technical requirements. - Contribute to architectural improvements and application performance enhancements. - Collaborate on technical documentation and knowledge-sharing initiatives. **Key Responsibilities** - Design and implement back-end solutions using Java frameworks (e.g., Spring). - Conduct technical analysis, impact studies, and code reviews. - Develop and test APIs (REST/GraphQL/SOAP) and integrate with front-end components (Angular2+). - Optimize application performance and scalability. - Participate in agile workflows and DevOps practices (e.g., Jenkins, Docker, Git). **Required Skills** - Java, Spring, and RESTful API design. - Build tools (NPM, Webpack/Gulp/Grunt). - JavaScript, Angular2+, NGRX, HTML/CSS frameworks (Bootstrap/Core-UI/Materialize). - Database expertise (relational and NoSQL). - Cloud provider understanding (AWS/Azure/GCP). - Agile methodology and DevOps tools (Jenkins, Docker, Git, unit testing). **Required Education & Certifications** - Bachelor’s degree in Engineering, Computer Science, or equivalent technical field. - Minimum 3 years’ experience in back-end development. - Proven proficiency in Java and Spring, with a strong foundation in full-stack technologies.

Company Name: Jems Group
Job Title: Business Analyst H/F
Job Description: **Job Title** Business Analyst **Role Summary** Mid‑level Business Analyst responsible for capturing and translating business needs into functional specifications within an Agile framework. Coordinates with development teams, external vendors, and stakeholders to deliver robust data‑management solutions. Conducts functional and regression testing, manages production incidents, and ensures clear communication across multilingual teams (French, Dutch, English). **Expectations** - 3+ years professional experience as a Business Analyst. - Strong written and oral communication in French, Dutch, and English. - Ability to work independently while collaborating effectively in cross‑functional teams. - Basic IT literacy to understand implementation possibilities in IT systems. - Proven project‑management experience and analytical mindset. **Key Responsibilities** - Elicit, analyse, and document business requirements from business lines. - Create iterative functional specifications (user stories, use cases, acceptance criteria) aligned with Agile methodology. - Define functional test cases, execute Functional Acceptance Tests (FAT), and perform regression testing. - Coordinate with external vendors to assess market tools and manage integration activities. - Document, analyse, and resolve production incidents and third‑level support requests. - Liaise between business stakeholders and development teams to ensure clear understanding of requirements. **Required Skills** - Functional analysis and specification writing. - Agile practices (Scrum/Kanban). - Test design and execution (FAT, regression). - Incident and change management. - Multilingual communication (French, Dutch, English). - Strong analytical and synthesis capabilities. **Required Education & Certifications** - Bachelor’s degree or higher from an engineering school or university. - Minimum of 3 years experience as a Business Analyst. - Certifications in Business Analysis (e.g., CBAP, PMI‑BA, Certified ScrumMaster) are a plus but not mandatory.