TalkTalk Tech Stack

Broadband and mobile provider modernizing infrastructure with cloud and data platforms

Telecommunications Salford, England 201–500 employees Privately Held

TalkTalk operates a telecommunications backbone serving UK customers across broadband, mobile, TV, and telephony. The tech stack reveals a data and infrastructure-heavy organization: Databricks, Spark, and MLflow sit alongside Azure, Terraform, and Azure DevOps, indicating active migration toward cloud-native analytics and IaC. The hiring mix is heavily skewed to data roles (12 open positions) relative to engineering (4), and the project list shows active work on cloud governance, cost management, and CI/CD — suggesting TalkTalk is mid-transformation, moving from legacy network operations toward cloud-first infrastructure and data-driven decision-making.

Tech Stack 27 technologies

Core StackDatabricks Scala PySpark Apache Spark Azure DevOps Terraform Azure AD Confluence Jira Figma Python MLflow Power BI AWS SQL Microsoft Office Azure Git Azure Entra ID Application Insights ProductBoard Excel GCP Microsoft Entra

AdoptingDatabricks Unity Catalog Delta Lake CI/CD

What TalkTalk Is Building

◆Challenges

Increasing demand for data science products
Compliance with data governance regulations
Identifying opportunities
Maintaining strong cloud security posture
Optimizing spend
Improving cloud security approach
Identifying vulnerabilities and misconfigurations
Maintaining secure network infrastructure
Supplier reconciliation and dispute resolution
Reducing friction in retention moments

▲Active Projects

Build and maintain public cloud shared infrastructure
Manage cloud subscription financial metrics
Design public cloud solution
Digital product change analysis and experimentation rollouts
Data governance frameworks
Network strategy development
Contract negotiations
Performance management of network supply
Azure infrastructure with terraform
Ci/cd pipelines in azure devops

Hiring Activity

Steady30 roles · 10 in 30d

Department

Data

Engineering

Procurement

Finance

Marketing

Product

Commercial

Communications

Seniority

Senior

Lead

Manager

Mid

Junior

Director

Notable leadership hires: Head of Insights

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About TalkTalk

TalkTalk is a telecommunications provider based in Salford, England, serving residential and business customers across the UK with broadband, mobile, TV, and voice services. Internally, the organization is undergoing significant infrastructure modernization: core projects span public cloud architecture design, Azure infrastructure automation, data governance frameworks, and network strategy development. The tech stack combines legacy telecommunications systems with modern cloud platforms (Azure, AWS, GCP) and big-data tools (Databricks, Spark), reflecting a bridging phase between traditional network operations and cloud-enabled analytics. Current pain points center on compliance, cloud security posture, cost optimization, and scaling data science capabilities — typical friction points for large infrastructure companies moving to cloud.

HeadquartersSalford, England

Company Size201–500 employees

Hiring MarketsUnited Kingdom

Frequently Asked Questions

What tech stack does TalkTalk use?

TalkTalk uses SQL, Python, Scala, and PySpark for analytics, paired with Databricks, Apache Spark, and Azure for cloud infrastructure. DevOps tooling includes Azure DevOps, Terraform, and Git. Data visualization runs on Power BI; collaboration uses Jira and Confluence.

What is TalkTalk working on?

Active projects include building public cloud shared infrastructure, designing cloud solutions, implementing CI/CD pipelines in Azure DevOps, establishing data governance frameworks, and optimizing cloud subscription costs and security posture.