As a Software Engineer on the Billing & Collections platforms, you contribute directly to the systems that keep the company financially healthy. Your work helps ensure customers receive accurate bills, can make seamless payments, and experience smooth interactions throughout their billing journey. By building reliable, scalable, and high quality software, you help maintain consistent cashflow, reduce revenue leakage, and support strong customer trust. This role gives you the opportunity to make a measurable impact on mission critical business operations while growing your engineering skills in a complex, high visibility domain.
What you’ll be doing
Front-End Engineering & Solution Implementation
Support the implementation of UI technical solutions across billing applications.
Work with backend/API teams to resolve integration issues and deliver smooth cross-system functionality.
Contribute to UI components, design systems, and reusable front-end frameworks.
Architecture & Technical Decision Support
Participate in evaluating technology options (Angular/React, Node, Webpack, NPM, etc.).
Support front-end architecture discussions to balance short‑term delivery with long‑term platform modernization (micro-frontends, containerization, cloud readiness).
UI Design & Development
Implement screens, workflows, dashboards, and customer‑facing modules aligned with BT security, accessibility, and performance standards.
Convert UX wireframes into pixel-perfect, responsive UI components.
Code Review & Engineering Best Practices
Participate in UI code reviews, ensuring adherence to coding standards, performance tuning, and maintainability.
Keep updated with modern UI trends, frameworks, and industry best practices.
Technical Specifications & Documentation
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Strong end-to-end debugging across UI, Node, and backend layers
Good to Have Skills
Spring MVC + JSP (deep understanding)
Oracle APEX / MedAdmin UI workflows
Micro Frontends & modular architecture
NgRx/Redux state management
UI performance optimization & Core Web Vitals
Telecom billing/finance workflows
Podman/Docker containerization
Exposure to Grafana, Prometheus, Kibana, ELK
Understanding of rating/charging systems (e.g., Netcracker)
CI/CD, Automation & Observability
UI build pipelines (Jenkins, Azure DevOps)
Automated deployments for UI and Java services
Shell/Python scripting for monitoring or utility tools
Experience with Prometheus, Grafana, ELK, OEM, Dynatrace, Application Insights
Experience
3–7 years of hands-on front-end engineering experience building enterprise-grade applications using Angular, React, TypeScript, HTML5, CSS/SCSS, and Bootstrap—preferably within billing, collections, finance, or other large-scale transactional domains.
Strong experience delivering UI solutions integrated with Spring MVC and JSP-based backends, including designing front-end flows, optimizing page rendering, and supporting production-grade customer and back-office applications.
Good understanding of backend concepts and J2EE/Spring MVC flows, with the ability to collaborate effectively with backend engineers and troubleshoot UI–API interaction issues, response mismatches, and data-flow inconsistencies.
Proven track record in building scalable, maintainable UI components using modern JavaScript frameworks, shared libraries, and enterprise UI architecture patterns.
Demonstrated capability in writing robust unit, integration, and acceptance tests using Jasmine/Karma, Jest, or related tools—ensuring predictable delivery, regression safety, and production stability.
Hands-on experience with CI/CD pipelines (Azure DevOps/Jenkins), including automated builds, test execution, deployments, linting, and secure NPM package management.
Comfortable working in Agile/Kanban environments, delivering features through continuous flow, incremental releases, and close collaboration with cross-functional squads.
Extensive experience with Jira workflows for managing requirements, defects, technical tasks, engineering stories, and delivery boards.
Strong debugging and analytical skills, with the ability to investigate complex issues across the UI, browser, API, caching, PLSQL/database, and network layers.
Experience collaborating in multi-disciplinary engineering teams, actively participating in peer code reviews, design discussions, UI architecture decisions, incident triage, and production support rotations.
Exposure to observability and monitoring tools (ELK, Kibana, Prometheus, Grafana) and familiarity with analysing logs and metrics to identify UI performance or reliability issues.
BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.
BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.
Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.
We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.
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