Jems Group

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

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.

Brussels, Belgium

Hybrid

Junior

04-12-2025

Company Name

Jems Group

Job Title

Data Engineer F/H

Job Description

**Job Title:** Data Engineer **Role Summary:** Design, develop, and maintain end‑to‑end data solutions, from acquisition to exploitation, supporting business units with innovative and reliable data engineering practices. **Expectations:** - Minimum 3 years of professional experience in data‑focused projects. - Proactive, autonomous, and detail‑oriented with strong problem‑solving skills. - Continual technology watch and ability to propose improvements. **Key Responsibilities:** - Participate in the design and implementation of data architectures aligned with business needs. - Identify, collect, and integrate data required for operational and analytical use cases. - Ensure data quality by implementing measurement, monitoring, and governance controls. - Translate business requirements into data management rules and models. - Industrialize deployments using unit, integration, and regression testing. **Required Skills:** - Proficient in SQL. - Strong programming experience in an object‑oriented language (Python, Java, or Scala). - Experience with distributed processing frameworks (e.g., Spark, Flink). - Familiarity with CI/CD tools (Git, JUnit, SonarQube, Jenkins). - Working knowledge of cloud platforms (AWS, GCP, Azure) or Big Data distributions (Hortonworks, Cloudera, DataStax). - Understanding of relational and non‑relational data modeling concepts. **Required Education & Certifications:** - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (engineer school or university). - Relevant certifications (e.g., cloud provider certifications, data engineering credentials) are a plus.

Levallois-perret, France

On site

Junior

24-12-2025

Company Name

Jems Group

Job Title

Product Owner Data F/H

Job Description

**Job title** Product Owner – Data **Role Summary** Lead the product strategy and execution for data-centric solutions, ensuring maximum value for customers and stakeholders. Own the product vision, roadmap, and backlog, and serve as the central liaison among cross‑functional teams and senior leadership. **Expectations** * Demonstrate advanced product ownership in data domains (MDM, data visualisation, data quality). * Translate market and regulatory insights into actionable product decisions. * Advocate for the product at executive levels and influence strategic direction. **Key Responsibilities** 1. Define, communicate and evolve the product vision. 2. Own and prioritize the product backlog in collaboration with engineering, data science, and UX teams. 3. Create and maintain a strategic product roadmap aligned with business goals. 4. Present and defend the product’s value proposition to senior management and external stakeholders. 5. Coordinate all product contributors, ensuring alignment and smooth delivery. **Required Skills** * Deep knowledge of data environments: MDM, data visualisation, data quality management, and related tooling. * Strong sectorial and regulatory expertise relevant to data products. * Excellent communication, active listening, and stakeholder management. * Business‑oriented mindset with a proactive, value‑driven approach. * Visionary outlook—able to anticipate market trends and identify growth opportunities. * Proven leadership and the ability to articulate and defend strategic decisions at the highest level. **Required Education & Certifications** * Bachelor’s or Master’s degree from an engineering school or a technical university. * Minimum 3 years of operational experience in a Product Owner role for data products.

Levallois-perret, France

On site

Junior

24-12-2025

Company Name

Jems Group

Job Title

Tech Lead Data Engineer F/H

Job Description

**Job Title:** Tech Lead Data Engineer **Role Summary:** Lead the design, implementation, and operational excellence of data engineering solutions. Drive architectural decisions, ensure data quality, and mentor junior consultants while collaborating with stakeholders to meet business objectives. **Expectations:** - Deliver innovative, scalable, and robust data solutions. - Maintain high standards of data governance, quality, and security. - Serve as an architectural advocate to clients and internal teams. - Mentor and develop junior data engineers. - Contribute to pre‑sales and proposal activities. **Key Responsibilities:** - Design and implement data access, ingestion, and quality pipelines. - Industrialize and supervise end‑to‑end data workflows. - Author development standards and contribute to operation manuals. - Present and promote data architectures to clients. - Translate business requirements into technical solutions. - Guide and coach junior consultants. - Participate in bid responses and pre‑sales discussions. **Required Skills:** - SQL (advanced). - Object‑oriented language proficiency (Python, Java, or Scala). - Distributed computing framework (Spark, Flink, etc.). - Message bus expertise (Kafka, RabbitMQ). - Data integration tools (Talend, Matillion, Stambia). - Search/ELK stack (ElasticSearch, Logstash, Kibana, Solr). - Cloud data storage (S3, Azure Blob, HDFS, DeltaLake). - CI/CD tools (Git, Jenkins, JUnit, SonarQube). - Cloud platforms (AWS, GCP, Azure) or Big Data distributions (Hortonworks, Cloudera, Datastax). - Relational and NoSQL data modeling concepts. **Required Education & Certifications:** - Engineering or university degree in Computer Science, Information Technology, or related field. - Minimum 5 years of professional data engineering experience. - Relevant certifications (e.g., AWS Big Data, Cloudera Certified Associate) are a plus.

Levallois-perret, France

On site

Senior

14-01-2026