Funding Circle UK Tech Stack

SME lending platform accelerating loan decisioning and disbursement

Financial Services London 501–1,000 employees Founded 2010 Public Company

Funding Circle is a UK-based SME lender operating a polyglot engineering stack (Ruby, Python, Clojure, Scala, Haskell, Elixir) with modern infrastructure (Kafka, Kubernetes, AWS) and observability tooling (Segment, Amplitude). The project backlog reveals dual focus: building new credit products (credit card, flexible lines of credit) while tackling legacy friction—data migration and application processing speed appear in both projects and pain points, indicating that operational bottlenecks are slowing loan turnaround even as the company scales origination volume.

Tech Stack 43 technologies

Core StackRuby Python Scala Elixir Apache Kafka JavaScript React Kafka Amplitude Iterable AWS Kubernetes React Native TypeScript Firebase Salesforce GitLab CI/CD Jenkins GitHub Actions Clojure Haskell F# Segment LinkedIn Recruiter Serverless Gradle Xcode Git SAST DAST+13 more

What Funding Circle UK Is Building

◆Challenges

Reducing application processing time
Lengthy applications
Lead conversion rate
Legacy codebase
Risk mitigation
Modernising legacy processes
High-volume pipeline
Mitigating risks and control weaknesses
Migrating legacy data processes
Business-wide compliance

▲Active Projects

Evolving bespoke decision engine
Scaling flexipay product
Security awareness programme
Credit card product
Scaling mobile app infrastructure
Security automation across cloud infrastructure configuration
Credit risk platform
Penetration testing engagements
Legacy data process migration
Business development of new borrowers

Hiring Activity

Steady45 roles · 15 in 30d

Department

Engineering

Sales

Product

Security

Data

Marketing

Ops

Seniority

Senior

Mid

Junior

Lead

Manager

Staff

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About Funding Circle UK

Funding Circle provides digital lending to small and medium-sized businesses in the UK, offering unsecured loans, flexible credit facilities, and newer credit card products. The platform emphasizes speed and simplicity: borrowers apply online, receive automated decisions, and typically access funds within 48 hours. Since 2010, the company has processed over 130,000 business loans totaling more than £14.5 billion. The organization operates at 501–1,000 employees, headquartered in London, and went public. The current roadmap balances product expansion (new credit card vertical, scaling flexipay) against modernization (legacy codebase refactoring, data pipeline migration) and hardening (security automation, penetration testing, compliance controls).

HeadquartersLondon

Company Size501–1,000 employees

Founded2010

Hiring MarketsUnited Kingdom

Frequently Asked Questions

What tech stack does Funding Circle use?

Ruby, Python, Clojure, Scala, Haskell, Elixir, and F# for backend; React and TypeScript for frontend; Kafka for event streaming; AWS for cloud infrastructure; Kubernetes and Serverless for orchestration; Segment and Amplitude for analytics; Salesforce for CRM.

What is Funding Circle working on?

Evolving its credit decisioning engine, scaling mobile and flexipay products, launching a credit card offering, modernizing legacy data processes, and expanding security automation and compliance controls across cloud infrastructure.