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BT Group Tech Stack

UK telecom operator scaling cloud infrastructure and AI integration across 25M premises

Telecommunications London 10,001+ employees Public Company

BT Group operates one of the world's largest telecommunications networks, serving the UK with fixed-line, mobile, and broadband connectivity. The tech stack reflects a mature enterprise infrastructure (Cisco, Juniper, Palo Alto, AWS, Kubernetes) undergoing modernization: the company is actively replacing Oracle, adopting gRPC and CRM tooling, and running concurrent projects on data mesh, API-first architecture, and AI integration patterns. Hiring velocity is accelerating across engineering (115 roles), security (43), and data (23)—indicating simultaneous efforts in infrastructure hardening, platform transformation, and analytics.

Tech Stack 200 technologies

Core StackCisco Palo Alto Networks AWS Kubernetes Docker Elastic Stack Elasticsearch GitLab CI/CD GitHub Actions Python JavaScript Go Grafana ArgoCD Jira Juniper F5 Avaya HPE Blackberry SD-WAN Edge Cisco Meraki Teams Five9 Cisco Unified Communications Manager Genesys Cloud Genesys Engage MPLS DMVPN+170 more

AdoptinggRPC CRM PPPoE

ReplacingOracle

What BT Group Is Building

◆Challenges

Meeting security and compliance objectives
Improving customer service processes
Risk mitigation
Automating time intensive processes
Thousands of cyber-attacks
Transition creative delivery in house
Regulation and competition
Radical simplification of systems, structures, and processes
Platform transformation
Vendor rationalization

▲Active Projects

Bss modernization
Customer service management plan implementation
Building new processes and workflows for in-house creative delivery
Data mesh implementation
Api-first integration architecture
Digital infrastructure project connecting 25 million premises to full fibre broadband
Ai integration patterns
Cloud infrastructure automation
Implement complex voice, network, wireless and security solutions
Customer migration planning and implementation

Hiring Activity

Accelerating320 roles · 160 in 30d

Department

Engineering

115

Security

43

Support

28

Data

23

Ops

23

Sales

20

Finance

15

HR

12

Seniority

Senior

118

Mid

105

Manager

43

Junior

16

Principal

12

Lead

10

Intern

5

Director

1

Notable leadership hires: Associate Creative Director, Account Director, Organisational Performance Lead

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About BT Group

BT Group is a public telecommunications company headquartered in London with 10,000+ employees. The company provides superfast broadband, fixed-line voice, mobile services, sports broadcasting, networked IT services, cyber security, and managed cloud solutions. Current initiatives include a digital infrastructure project connecting 25 million premises to full-fiber broadband, modernization of billing and customer service systems (BSS transformation), migration of creative delivery in-house, and implementation of a data mesh architecture. The organization faces competing demands around security compliance, vendor rationalization, and process automation—all while managing thousands of cyber-attacks annually and navigating regulatory and competitive pressures.

HeadquartersLondon

Company Size10,001+ employees

Hiring MarketsUnited Kingdom, China, Hungary, India, Colombia, Spain, South Korea, Singapore

Frequently Asked Questions

What is BT Group's tech stack?

BT uses Cisco, Juniper, Palo Alto Networks, AWS, HPE, Kubernetes, Docker, and Elastic Stack. Currently adopting CRM and gRPC; replacing Oracle infrastructure.

What is BT Group working on?

Major projects include: fiber broadband rollout to 25M premises, BSS modernization, data mesh implementation, API-first integration, cloud automation, and AI integration patterns.