We have been using Swift at Funding Circle for a couple of years now. One particular subject that was interesting to get to the bottom of was the usage of weak vs unowned reference types. Why are there three ways (strong, weak, unowned) of referencing...

Debugging Kafka Connect Sinks

When we had to scale into billions of dollars of originations and multiple currencies at the same time here at Funding Circle, we chose Kafka for our new global marketplace lending platform. We still have a legacy stack...

We rely heavily on Kafka and Kafka Streams at Funding Circle to build event-driven microservices, so, testing those Kafka Streams topologies is key to validate the correctness of our platform.

The aim of this blog post is to compare two integration...

This talk was done at the March event of the London CSS Meetup, hosted in our office.

I took the opportunity to talk about our internal styleguide, specifically the mistakes we’ve done while building it and what we’ve learned and how we tried to fix them.

Funding Circle is one of Europe’s leading FinTech companies. Our headquarters are based in the City of London, one of the oldest financial centres in the world and still a global leader. Naturally there is a lot of financial regulations with which...