Data Engineer (FinTech)

G MASS is partnering with a global FinTech business to support the build-out of a next-generation data engineering capability within a large-scale enterprise data environment. This role sits within a highly technical engineering team focused on delivering AI-enabled, cloud-native data products used across the business. You'll join a collaborative engineering function responsible for designing and delivering robust, scalable data solutions. The work spans data ingestion, transformation, analytics and enablement, supporting both internal stakeholders and client-facing products. Key responsibilities • Design, develop and maintain scalable data pipelines for ingestion, transformation and storage • Write efficient SQL queries to support data extraction, manipulation and analysis • Use Apache Spark and Python to process large datasets and automate workflows • Partner with data scientists, engineers and business stakeholders to translate requirements into data solutions • Implement data quality checks and validation to ensure accuracy and reliability • Analyse complex datasets to identify trends, patterns and anomalies • Produce and maintain clear documentation covering data processes and architecture • Support stakeholders with data visualisation and interpretation of outputs Requirements • Strong experience in SQL for data manipulation and analysis • Hands-on experience with Apache Spark (Java, SQL or PySpark) and Python • Experience working with large, complex datasets in enterprise environments • Exposure to cloud data platforms (AWS, Azure or GCP) and big data technologies • Confident communicator, comfortable working across technical and non-technical teams • Background or exposure to financial services or capital markets Nice to have • Experience using Java in data processing or integration contexts • Knowledge of ETL processes and data warehousing concepts • Experience with data visualisation tools (Power BI, Tableau, Qlik) • Familiarity with data science notebooks (e.g. Jupyter, Zeppelin) • Version control experience (Git, GitHub, Bitbucket, Azure DevOps) Benefits Initial 6-month contract, with strong possibility of extension and/or permanency. Salary to be discussed.