Senior Data & AI Engineer (5 to 8 years)

• 27 July 2026 • 80 - 100% • Indefinite duration • English (Fluent), French (Native language) • Multiple locations available Rue du Châble-Bet 41, 1920 Martigny Show more • Log in to see the jobup.ch salary estimate Do you want to build robust data solutions, explore concrete uses of AI, and help our clients transform their ideas into operational results? Do you enjoy both designing reliable pipelines and developing analytics, machine learning, or GenAI use cases? At Synchrotech, we support SMEs, administrations, and large accounts in French-speaking Switzerland in their data modernization, Business Intelligence, and AI innovation projects. We are looking for a hands-on, curious, and pragmatic person, capable of designing, developing, and driving the adoption of high business-value solutions. Your mission: • Lead and implement Data Engineering projects, from data extraction to restitution, to improve decision-making and operational efficiency. • Design, develop, and optimize ETL/ELT pipelines adapted to analytics, machine learning, or GenAI needs. • Model data according to business and technical needs: star, snowflake, and Data Vault models in medallion-type architectures. • Develop clear analyses, dashboards, and indicators, notably with Power BI. • Prototype and then industrialize AI use cases: predictive models, business assistants, RAG, LLM integration, process automation, or specialized agents. • Implement best practices for quality, governance, security, documentation, testing, versioning, and CI/CD. • Work on several projects in parallel, with autonomy, sense of priority, and close collaboration with internal teams and clients. • Facilitate workshops, challenge needs, translate business challenges into concrete solutions, and support users in adoption. • Contribute to the development of Synchrotech's Data & AI offerings, standards, accelerators, and best practices. Profile sought: • Confirmed experience, ideally 5 to 8 years, in Data Engineering, Data Platform, Analytics Engineering, or similar roles. • Very good mastery of SQL, Python, and concepts of data integration, transformation, orchestration, and optimization. • Experience with tools such as Azure Data Factory, SQL Server/Azure SQL, Data Lake, Synapse, Microsoft Fabric, dbt, Snowflake, Databricks, or equivalent technologies. • Solid foundations in data architecture, modeling, data quality, governance, security, and performance. • Experience in data visualization, ideally with Power BI, and the ability to design understandable, business-oriented analyses. • Good knowledge of data science or machine learning: data preparation, feature engineering, model training or evaluation, understanding the limits and biases of the approaches used. • Experience or strong interest in LLM architectures, RAG, embeddings, vector databases, prompt/context engineering, agent orchestration, and AI API integration. • Ability to prototype quickly, test hypotheses, measure the quality of results, and then structure a maintainable and industrializable solution. • Comfortable with a code-first approach, AI-assisted development, and development copilots, while maintaining a high level of requirement regarding quality, documentation, and security. • Mastery of modern development practices: Git, Azure DevOps or equivalent, CI/CD, testing, code reviews, technical documentation, and team collaboration. • Ability to communicate with business and technical interlocutors, facilitate workshops, popularize complex concepts, and defend architecture choices. • Mastery of fluent French and professional English; German is a plus. • Autonomy, curiosity, team spirit, sense of service, rigor, and desire to learn. What we offer: • A permanent contract (CDI) with an entry date as soon as possible according to your availability, ideally at 100% to allow for strong commitment to our client projects. • A visible and empowering role within the Data & AI team, with the possibility to influence our technological choices, methods, and offerings. • Varied projects with French-speaking clients, in demanding business environments where quality, reliability, and operational value truly matter. • The possibility to work on current topics: data platforms, BI, automation, LLM, business assistants, and industrialization of AI use cases. • An environment that values autonomy, knowledge sharing, technological monitoring, and learning by doing. • Certifying training with technological partners, mentoring, and medium-term evolution perspectives toward lead or expert roles depending on performance and company needs. • A respected work/life balance, with flexibility, conviviality, and modern premises in Martigny or Carouge. • A culture based on high quality standards, trust, diversity, and inclusion. A real plus: share with us a portfolio, a GitHub, a notebook, an AI prototype, a dashboard, a demo, or a personal project. We appreciate profiles that build, test, learn quickly, and know how to transform an idea into a usable solution. Ready to build useful, modern, and pragmatic Data & AI solutions with us? Send your CV accompanied by a short cover message. We commit to responding to you within 5 days. And if you are passing near us, why not come by for a coffee?