Job Description
Job Title:  Software Engineering Specialist
Req ID:  59262
Job Function:  Software Engineering
Posting Start Date:  01/06/2026
Posting End Date:  02/06/2026
Division:  Digital
Job Location:  IND Gurugram - Tower B and C
Advertised Salary:  Competitve

About the role

The Software Engineering Specialist independently executes advanced activities to deliver the engineering strategy and roadmap that supports BT's commercial strategy through cross functional business partnering and the participation of a team that pursues innovation as well as engineering excellence.

What you’ll be doing

Application Development: Design, build, and maintain scalable, high-performance React Native applications with a strong focus on reliability and user experience.
Feature Ownership: Drive end-to-end delivery of complex features from requirements and design to implementation, testing, and production rollout.
Code Quality: Write clean, maintainable, and well-documented code, adhering to best practices, coding standards, and reusable component design.
Performance Optimization: Identify and resolve bottlenecks to deliver smooth, responsive, and efficient mobile experiences.
API Integration: Integrate REST/GraphQL APIs and third-party services, ensuring secure and reliable data flow.
Testing & Debugging: Develop unit and integration tests; proactively troubleshoot production issues with strong root cause analysis.
Platform & Native Expertise: Ensure consistent behaviour across iOS and Android while handling platform-specific challenges. Possess intermediate experience in Android (Java/Kotlin) and iOS (Swift), with the ability to build and maintain custom native modules/plugins in React Native.
Dependency Management: Evaluate, integrate, and manage third-party libraries with a focus on stability and long-term maintainability.
CI/CD & Releases: Collaborate with DevOps to support build automation, CI/CD pipelines, and app store release processes.
Documentation: Maintain clear technical documentation covering architecture, design decisions, and implementation details.
Continuous Improvement: Explore and adopt new tools, frameworks, and best practices to improve development efficiency and product quality.
Collaboration: Partner with product, design, and backend teams to deliver high-impact, user-centric features.
Platform Thinking: Contribute to building scalable mobile platforms and shared frameworks with proven experience in designing systems from scratch and scaling them across teams.

Essential Skills / Experience

Core Technical Skills

  • React Native (advanced)
  • JavaScript (ES6+) / TypeScript
  • Mobile Application Architecture & Design Patterns
  • Cross-platform development (iOS & Android)

Development & Engineering

  • End-to-end feature development & ownership
  • Scalable and high-performance mobile app development
  • Reusable component design & clean coding practices
  • Code review, standards, and best practices adherence

Performance & Optimization

  • Mobile app performance tuning & optimization
  • Memory management & responsiveness improvement
  • Debugging performance bottlenecks

API & Integration

  • REST API integration
  • GraphQL implementation
  • Third-party SDK/service integration

Testing & Debugging

  • Unit testing & integration testing
  • Debugging & troubleshooting (production issues)
  • Root cause analysis

Platform & Native Expertise

  • Android (Java/Kotlin – intermediate)
  • iOS (Swift – intermediate)
  • Native module/plugin development in React Native
  • Handling platform-specific behaviors

DevOps & Release Management

  • CI/CD pipelines for mobile apps
  • Build automation
  • App Store & Play Store release management

Dependency & Code Management

  • Third-party library evaluation & integration
  • Dependency management & version control (Git)

Documentation & Practices

  • Technical documentation & architecture documentation
  • Coding standards and maintainability practices

Collaboration & Product Mindset

  • Cross-functional collaboration (Product, Design, Backend)
  • Agile/Scrum methodologies
  • User-centric feature development

Advanced / Differentiating Skills

  • Platform thinking & scalable mobile frameworks
  • System design for mobile applications
  • Building applications from scratch & scaling across teams
  • Continuous learning & adoption of new tools/frameworks

Desirable Skills / Experience

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.