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Telco
Powering member-centric growth for a telco giant
Full-scale cloud transformation with Snowflake Vault and dbt
Key results and metrics
98%
faster reporting, with month-end runs cut from 8 hours to under 15 minutes
15+
isparate feeds unified into a single, GDPR-compliant source of truth
Zero business downtime
during the £2 M migration, completed on schedule (14 months)
Future-proof Data Vault 2.0
model ready for new products and member-first analytics
Self-service
finance and BI
Data teams iterating
without SQL Server/SSIS bottlenecks
The challenge
A legacy SQL Server warehouse and SSIS pipelines used to hinder the client’s ability to launch flexible products and meet strict GDPR mandates.
Two parallel platforms, fragile ETL, and eight-hour report cycles would keep data teams in maintenance mode and block a true member-centric view.
The solution
Infinite Lambda delivered a full-scale cloud transformation that involved:
- Lift-and-validate migration of all SQL Server logic to Snowflake and dbt with automated tests;
- Data Vault 2.0 modelling to embed business logic centrally and integrate 15+ feeds;
- AWS + Kubernetes orchestration for near-real-time ingestion and quality monitoring;
- Documentation and training via dbt Docs and pair-programming to ensure in-house excellence and empowerment.
The result is a governed, scalable platform where every team shares one language for data, while reports appear in minutes, not hours.
Looking for more details?
The client’s modern data stack
Infinite Lambda helped us turn a complex migration into a catalyst for faster insights and new member experiences.
— Chief Data Officer
Let’s walk the walk together
Our data expertise translates into cutting-edge, modular solutions that empower people and help organisations thrive in the era of AI.
Are you considering
building a Data Vault?
Tune in to the webinar to see the benefits of this modelling technique for enterprise projects. You will learn how dbt Cloud and Snowflake contribute to agility and scalability, and hear insights from giffgaff's data transformation success story.
Success Stories
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