Evolving Systems Tech Stack

eSIM lifecycle and real-time customer engagement platform for telecom operators

Telecommunications Manchester , England 201–500 employees Founded 1985 Public Company

Evolving Systems operates a dual-platform business: an eSIM management suite for mobile operators handling activation, distribution, and lifecycle workflows, plus Evolution, a customer engagement engine. The tech stack—PCRF, CRM, Spring Boot, React, and heavy test automation (Appium, Selenium, Playwright, HeadSpin)—reflects a mature integration platform bridging telecom provisioning APIs with marketing automation. Hiring is engineering-led (4 of 5 open roles) with junior and senior splits, suggesting both backlog work and platform scaling; active projects around test automation and web services align with that operational posture.

Tech Stack 51 technologies

Core StackSelenium Python Jenkins GitLab Linux Playwright Java React Angular JavaScript TypeScript C# .NET Docker NGINX Grafana PCRF CRM Appium WebdriverIO Espresso XCTest Tornado macOS XCUITest HeadSpin Spring Boot HTML5 CSS Git+18 more

What Evolving Systems Is Building

◆Challenges

Maintaining revenue and margin
Closing upsell opportunities

▲Active Projects

Automation test suites for headspin's platform
Dashboard for captured data
Production-grade web services and agents

Hiring Activity

Accelerating5 roles · 2 in 30d

Department

Engineering

Sales

Seniority

Junior

Senior

Mid

Company intelligence

Find more companies like Evolving Systems by tech stack, pain points and active projects

Get started free

About Evolving Systems

Evolving Systems is a public UK-based software vendor serving communications service providers (CSPs)—primarily mobile operators. The company has spent over 35 years building systems that help operators manage network disruptions like 5G and IoT adoption. Its core products are a complete eSIM lifecycle management suite (covering planning, production, distribution, activation, and reactivation) and Evolution, a real-time customer engagement platform that unifies customer data and drives marketing and retention workflows. The business model straddles infrastructure software (billing-adjacent) and marketing technology, with revenue primarily from licensing and per-transaction or per-SIM pricing from major global carriers.

HeadquartersManchester , England

Company Size201–500 employees

Founded1985

Hiring MarketsMorocco, India

Frequently Asked Questions

What tech stack does Evolving Systems use?

Core stack includes PCRF and CRM for telecom provisioning, Spring Boot and .NET for backend services, React and Angular for frontends, and extensive test automation via Appium, Selenium, Playwright, and HeadSpin. Jenkins, GitLab, Docker, and Grafana handle CI/CD and observability.

Where is Evolving Systems headquartered?

Manchester, England. The company is a public company registered in the United Kingdom with 201–500 employees.