The Challenge
CityFibre, the UK’s largest independent full-fibre platform, is rapidly scaling its network to serve high-speed connectivity to at least 8 million premises across cities, towns, and rural areas. Sustained company growth and a major new partnership with Sky, has increased demand on its data infrastructure and the need for enhanced stability within a governed data platform. To aid delivery and acceleration, CityFibre needed a real-time data integration solution that could handle increasing volumes, maintain reliability, and support an API-first approach.
Previous solutions, including Salesforce and Kafka native solution, struggled with real-time data ingestion, often failing to meet the company’s operational demands. As CityFibre continued to grow through both build and network asset acquisition, it became even more critical to process large data volumes efficiently while ensuring stability and governance.
- UK’s largest independent full-fibre platform
- On track to serve at least a third of the UK market
- Accelerating nationwide digital transformation
- Partnered with Vodafone, Sky, TalkTalk and more
- Growing through build and consolidation of acquired assets
- API-first, digitally driven service model
- Development squads aligned to business functions for faster delivery
The Solution
After evaluating real-time streaming solutions, CityFibre selected Striim to replace its legacy platform and scale data capabilities. A successful on-site proof-of-concept confirmed Striim’s ability to meet performance benchmarks, including integration with Kafka, high-volume processing, CDC from Oracle and Salesforce, and compatibility with CI/CD workflows. Striim centralized ingestion from Oracle, Salesforce, and Kafka, with all targets standardized into Kafka for further processing and downstream consumption into Snowflake, giving CityFibre a consistent, repeatable approach to building data pipelines across squads.
Striim’s reliable, continuous CDC avoided the limitations of polling-based methods and was deployed quickly with technical guidance and regular check-ins. With best in class availability and performance desired by all its partners, Striim helped CityFibre scale confidently, ensuring real-time data delivery across systems to support proactive network management and customer service.
The Result
Key outcomes include:
- Accelerated Time to Insight: By enabling real-time data pipelines, Striim supports instant processing and delivery of critical information for internal APIs, powering diagnostics and customer-facing tools.
Automated CDC at Scale: Striim replaced brittle connectors with robust CDC, providing continuous ingestion without data loss—even during schema changes or surges in volume.
DevOps and CI/CD Integration: Striim’s flexibility allowed CityFibre to integrate seamlessly into their CI/CD pipeline, enabling fast, reliable deployments across squads without sacrificing governance or oversight.
Increased Developer Productivity: With Striim managing ingestion and schema evolution, developers spend less time maintaining pipelines and more time delivering value—building new use cases, features, and insights for the business.
Future-Proof Architecture: As CityFibre grows and develops AI-driven analytics and predictive diagnostics, Striim’s real-time foundation is ready to scale— helping teams detect issues, respond faster, and offer a world-class, API- driven experience.
As CityFibre continues to grow, Striim remains a core component of its data strategy, ensuring the company can scale efficiently while delivering high-quality service to customers and partners. CityFibre’s journey is a model for how high-growth telcos can modernize infrastructure, support digital-first services, and stay ahead of market expectations—powered by a real-time data backbone built with Striim.
