Starling Tech Stack

Digital banking platform and SaaS engine for financial institutions

Banking London, London 1,001–5,000 employees Founded 2014 Privately Held

Starling operates a multi-layered fintech business: a direct-to-consumer digital bank with over four million accounts, plus Engine by Starling, a SaaS platform licensing banking technology to other institutions. The tech stack (Java, AWS, GCP, Kubernetes, PostgreSQL) reflects infrastructure scaling demands; active hiring across engineering, security, and data signals preparation for international expansion and tighter regulatory compliance. Pain points around expanding beyond the UK market, infrastructure complexity, and risk/compliance training suggest the company is navigating the operational weight of scaling both B2C and B2B2C financial services simultaneously.

Tech Stack 26 technologies

Core StackJava AWS Swift PostgreSQL TypeScript HubSpot Kubernetes Go Python SAS Looker GitHub BigQuery iOS GCP AWS ECS R SQL Excel Google Sheets Word Google Docs PowerPoint Google Slides SOC 2 ISO 27001

What Starling Is Building

◆Challenges

Increasing infrastructure complexity
Expanding into uk market
Insurance coverage for growth initiatives
Managing risk & compliance training
Manage insurance for international expansion
Manual intervention
Ensuring audit readiness
Optimising identity lifecycle
Maintaining grc program
Model risk compliance

▲Active Projects

Internal tooling
Re-engineer banking technology for global saas market
New features for uk market
Cloud native banking platform
Cloud-native warehouse and machine learning platforms
Campaign execution and marketing operations
Risk framework development
New features and products from scratch
Android app
Ai/ml model validation

Hiring Activity

Steady160 roles · 60 in 30d

Department

Engineering

Security

Data

Finance

Sales

Product

Risk

Seniority

Mid

Senior

Staff

Lead

Director

Manager

Junior

Notable leadership hires: Product Director, Head of Supplier Risk, Transformation Lead

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About Starling

Starling is a UK-based digital bank founded in 2014 with over four million customer accounts across four account types and zero physical branches. In parallel, the company operates Engine by Starling, a SaaS subsidiary that licenses its proprietary banking platform to other financial institutions. The core team spans 1,001–5,000 employees across offices in London, Cardiff, Dublin, Manchester, and Southampton. Starling serves both retail customers managing personal finances and partner banks seeking modern technology infrastructure. The company holds a full UK banking licence and operates under SOC 2 and ISO 27001 compliance frameworks.

HeadquartersLondon, London

Company Size1,001–5,000 employees

Founded2014

Hiring MarketsUnited Kingdom, United States, Australia, Canada, Ireland, United Arab Emirates

Frequently Asked Questions

What technology does Starling use?

Starling's core stack includes Java, AWS, GCP, Kubernetes, and PostgreSQL. The platform also uses Swift and TypeScript for mobile clients, Go and Python for backend services, and BigQuery, Looker, and R for analytics and data work.

What is Starling working on?

Current projects include re-engineering the banking platform for the global SaaS market, building cloud-native infrastructure and ML pipelines, launching new features in the UK market, developing the Android app, and strengthening risk frameworks and GRC programs.