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Senior Snowflake Developer
LSEG (London Stock Exchange Group)Senior ETL Developer responsible for data integration solutions using ETL tools and cloud platforms. Working with enterprise data management and analytics needs for Snowflake.
Tech Stack
Tools & technologiesAWSAzureCloudETLMatillionSQL
About the role
Key responsibilities & impact- The Senior ETL Developer is responsible for designing, developing, and maintaining robust, scalable, and secure data integration solutions that support enterprise management information, reporting, analytics, and regulatory needs
- Focuses on end-to-end ETL design and implementation, ensuring high-quality, reconciled, and well-governed data pipelines across cloud-based data platforms
- Design, develop, and enhance complex ETL workflows to acquire, transform, and load data from diverse source systems into enterprise data platforms such as Snowflake
- Use enterprise ETL tools (e.g., AWS Glue, Ab Initio, Matillion, DataStage) to build scalable and reusable data pipelines
- Implement robust data reconciliation, validation, and error-handling processes to ensure accuracy and completeness
- Maintain strong data lineage and traceability across all ETL processes
- Design and implement unified data models, including star schemas and dimensional models, to support reporting and analytics
- Optimize data structures and ETL logic to improve performance, scalability, and cost efficiency in cloud data environments
- Partner with reporting and analytics teams to ensure ETL outputs align with downstream consumption needs
- Develop and operate ETL solutions within cloud environments (AWS and Azure)
- Leverage cloud-native storage and compute capabilities while ensuring performance and reliability
- Use Control-M to schedule, orchestrate, and monitor ETL jobs and dependencies
- Apply data governance, security, and access control standards within ETL design and execution
- Maintain metadata, documentation, and operational run books for all ETL assets
- Support audit, regulatory, and compliance requirements through repeatable and well-documented data pipelines
- Ensure audit trails and reconciliation controls are embedded within ETL processes
- Translate business and reporting requirements into detailed ETL technical designs
- Work closely with data designers, MI/reporting teams, and platform engineers
- Support production deployments
- Mentor junior ETL developers
Requirements
What you’ll need- Strong hands-on experience with ETL tools such as Ab Initio, Matillion, DataStage (or equivalent enterprise ETL platforms)
- Advanced SQL skills with performance tuning experience
- Experience working with Snowflake as an enterprise data warehouse
- Solid grasp of data modeling concepts, including star schema and dimensional modeling
- Experience with job scheduling and orchestration using Control-M
- Familiarity with cloud platforms (AWS and/or Azure) for data solutions
- Knowledge of data governance, metadata management, and data security standards
- Ability to design and detail out end-to-end data flows ensuring lineage
- Experience embedding data quality and reconciliation controls in ETL pipelines
- Experience in financial services, risk, regulatory, or management reporting environments (preferred)
- Familiarity with data cataloging tools and data quality frameworks (preferred)
- Experience supporting reporting tools such as Power BI (from a data producer perspective) (preferred)
- Strong analytical and problem-solving skills with high attention to detail
Benefits
Comp & perks- Annual Leave, Parental Leave benefits
- Upskilling opportunities with job relevant training and certifications
- Dedicate Employee Helpline
ATS Keywords
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Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
ETL designETL implementationdata integrationSQLdata modelingdata reconciliationdata validationdata governanceperformance tuningcloud data environments
Soft Skills
analytical skillsproblem-solving skillsattention to detailmentoringcollaboration