Barclays Tech Stack

Universal bank scaling data, compliance, and infrastructure across 40+ countries

Financial Services London 10,001+ employees Public Company

Barclays is a diversified universal bank with consumer, corporate, wealth, investment, and specialist US franchises operating across 40+ countries. The tech stack reveals a major architectural shift: heavy adoption of cloud data platforms (Redshift, BigQuery, Snowflake, Databricks) alongside Spring AI and SageMaker, while phasing out legacy systems (Angular, Red Hat, Visual Basic 6). The hiring velocity is accelerating with 668 engineering and 157 data roles open — a composition that signals simultaneous platform modernization and real-time financial intelligence buildout.

Tech Stack 200 technologies

Core Stack.NET C# Angular React Jenkins Jira SonarQube SQL Server AWS Python C++ SAP Java Rust Autosys Control-M TeamCity Chef Git Veracode Azure R Microsoft Office SQL OPA KDB+ ForgeRock PingGateway PingAM PingIDM+170 more

AdoptingRedshift BigQuery Snowflake Jenkins Spring AI Dart Spring Cloud Locust+24 more

ReplacingAngular Red Hat Enterprise Linux Visual Basic 6

What Barclays Is Building

◆Challenges

Risk mitigation
Ensuring compliance with laws
Streamlining processes
Risk and controls
Managing legal and reputational risks
Process inefficiencies
Ensuring data accuracy and security
Enhancing automation of financial crime processes
Identifying business problems and opportunities
Automating manual processes

▲Active Projects

Development and implementation of best practice legal strategies for risk management and compliance
Data pipelines
Data lakes
Subm system development
Valuation
Evolution of infrastructure and deployment pipelines
Financial systems integration
Financial policies implementation
Sales platform
Control framework implementation

Hiring Activity

Accelerating1,700 roles · 750 in 30d

Department

Engineering

668

Finance

296

Data

157

Ops

128

Support

Legal

Product

Security

Seniority

Senior

604

Mid

458

217

Lead

119

Manager

Intern

Director

Junior

Notable leadership hires: Regulatory Director, Chief Cyber Officer, Journey Optimization Lead, Data Governance Lead, Chief Controls Officer

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About Barclays

Barclays operates as a universal bank with five main divisions: UK consumer banking, corporate banking, wealth and private banking, investment banking, and US consumer specialist banking. The organization employs approximately 83,500 people across more than 40 countries. Core operational challenges center on risk mitigation, regulatory compliance, financial crime automation, and process efficiency — reflected in active projects around legal strategy, data pipelines, data lakes, and control frameworks. The bank's infrastructure is transitioning from on-premises to hybrid cloud (AWS, Azure) with emerging data lake and analytics platforms to support real-time decision-making across trading, lending, and customer management functions.

HeadquartersLondon

Company Size10,001+ employees

Hiring MarketsIndia, Luxembourg, Isle of Man, Singapore, United Kingdom, Germany, Canada, Czechia

Frequently Asked Questions

What tech stack does Barclays use?

Core: .NET, C#, Java, SQL Server, AWS, Azure. Analytics/data: Python, R, KDB+, Redshift, BigQuery, Snowflake. Adoption: Spring AI, SageMaker, Databricks, Spring Cloud. CI/CD: Jenkins, TeamCity, Chef, Git. Phasing out: Visual Basic 6, Red Hat Enterprise Linux.

What is Barclays working on?

Active projects include data pipelines and lakes, financial systems integration, infrastructure modernization, compliance and risk control frameworks, sales platform development, and automation of financial crime processes. Leadership hires (Chief Cyber Officer, Data Governance Lead) indicate priority on security and data governance.