Tom Sinnah

GS1 France is a non-profit organization that supports businesses in adopting international standards to improve traceability, efficiency, and transparency throughout the value chain. Specializing in identification (barcodes, GTIN, etc.), data management, and sharing, GS1 France operates across various sectors such as retail and healthcare. Through its collaborative solutions, it facilitates interoperability between business partners and helps companies in their digital transformation and sustainability commitments. As a Data Engineer, I am responsible for designing and maintaining the data platform to automate the collection and processing of information. My work contributes to delivering relevant insights to support marketing decision-making. - Contribution to building Data products alongside the Product Owner and Data Analyst as part of the Data team - Designing, maintaining, and improving data pipelines - Integrating new data sources, both internal and external, into the Data platform - Developing data transformations - Understanding the business purpose of the products as well as the functional complexity of the data handled - Ensuring the maintainability of the code and the platform - Continuously improving design, quality, and performance - Helping raise awareness among stakeholders about the challenges and benefits of Data

SIKIA is a digital services company founded in 2000, operating in various domains. One of their clients, Zadig&Voltaire, is recognized as a French clothing brand established in 1997. As a Data Engineer, I was responsible for developing and optimizing data flows between the database and various marketplaces/clients. • Optimized and refactored Azure Data Factory (ADF) pipelines to reduce costs • Migrated ADF pipelines to an internal solution developed in C# • Developed data flows to integrate information into the Zadig database and send data to third-party systems (SFTP, FTP, Blob Storage, ...) • Created an API in C# to expose certain data from the database • Secured the database to restrict access to sensitive data for specific users • Evolved the project's Cloud infrastructure (Infrastructure as Code) using Terraform and YAML for environment deployment • Designed a PowerBI monitoring template to regularly check data quality • Participated in production deployments and Code Review meetings to validate developments • Technical stack: TSQL, C#, Terraform, YAML

Alten is a company specializing in engineering and technology consulting. It supports its customers in their development strategy in the fields of innovation, Research & Development and technological information systems. As a Data Scientist, I was responsible for machine learning-based decision making and anomaly detection on time series data. • Machine Learning : Conducted exploratory data analysis, selected and tuned models (clustering, classification, anomaly detection), evaluated results, and compared multiple models to optimize performance • Developed a web platform using JavaScript • Trained new team members on the project and shared machine learning knowledge • Technical stack : Python, JavaScript

Engie is a French group specializing in low-carbon energy and services. Globally recognized, its mission is to accelerate the transition to a carbon-neutral world. As a Data Steward, I was responsible for ensuring data integrity (B2B), managing data imports, and creating technical documentation. • Ensured the coherence and integrity of databases • Managed massive data imports and data flows • Created technical and explanatory documentation • Developed advanced reports with Einstein Analytics (Tableau CRM) • Administered and managed operations on Salesforce • Technical stack: Salesforce, Talend, Excel, MySQL, Python, Selenium