o Revenue growth, customer experience, differentiation
o Business continuity, operational backbone
o Cost optimization, operational stability
o Data-driven decision making
o Scalability, resilience, efficiency
o Risk mitigation, regulatory compliance
o Cross-system connectivity and business agility
Impact of the role
1. Business & Customer Impact- Translates business requirements into reliable digital solutions, directly enabling revenue generation, customer experience, and service differentiation.
Improves time-to-market by delivering scalable, reusable, and automation-friendly solutions.
Enhances customer satisfaction through performant, secure, and resilient applications.
2. Operational Stability & Efficiency- Builds systems that reduce manual effort, defects, and operational incidents. Improves system reliability and availability through well-develop architectures and proactive defect prevention. Helps incident reduction and faster recovery by writing maintainable and observable code.
3. Scalability & Long-Term Sustainability- Designs applications that scale with business growth using modular, microservices-based approaches. Controls technical debt by following clean code, design patterns, and coding standards. Ensures systems are adaptable to future requirements, regulatory needs, and technology upgrades.
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What you’ll be doing
Develop, and maintain backend services and APIs using Java 8/17/21.
Build and manage microservices using Spring Boot and related frameworks.
Implement clean, efficient, and reusable code following best practices.
Develop data access layers using Hibernate / JPA.
Make effective use of Java Streams, lambda expressions, and functional programming concepts.
Work with SQL databases (e.g., MySQL, PostgreSQL, Oracle) and NoSQL databases (e.g., MongoDB, Cassandra).
Optimize application performance, scalability, and reliability.
Implement unit and integration tests and help CI/CD pipelines.
Collaborate with architects, DevOps, QA, and product teams.
Participate in code reviews and contribute to develop discussions.
Troubleshoot production issues and root cause analysis.
Essential Skills / Experience
4–9 years of hands-on experience in Java backend development.
What they ask for vs. your profile
Must have
Java
CI/CD
Customer experience
Microservices
SQL
DevOps
MongoDB
Oracle
Postgres
Root cause analysis
Strong expertise in Java 8 / 17 / 21, including Streams and concurrency concepts.
Good experience in Spring Boot and microservices architecture.
Solid understanding of Hibernate / JPA and ORM concepts.
Experience with RESTful APIs and API security.
Working knowledge of SQL and NoSQL databases.
Familiarity with Git, Maven/Gradle, and CI/CD tools.
Understanding of application performance tuning and JVM concepts.
Strong problem-solving and Data Driven skills.
Desirable Skills / Experience
Work with SQL databases (e.g., MySQL, PostgreSQL, Oracle) and NoSQL databases (e.g., MongoDB, Cassandra).
Optimize application performance, scalability, and reliability.
Implement unit and integration tests and help CI/CD pipelines.
Collaborate with architects, DevOps, QA, and product teams.
Participate in code reviews and contribute to develop discussions.
Troubleshoot production issues and help root cause analysis.
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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