Software Engineering Professional

BT Group; Bengaluru; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

BT plc in Bengaluru is seeking a seasoned Java backend developer to design, build, and maintain scalable microservices and RESTful APIs. You will work with Spring Boot, Hibernate/JPA, and diverse data stores in a collaborative, DevOps-aware environment.

The role focuses on performance, reliability, and growth, with emphasis on clean code, design patterns, and scalable architectures that support business needs and customer experiences.

Qualifications

• 4–9 years of hands-on Java backend development.
• Strong experience with Java 8/11/17/21, streams, and concurrency.
• Proven expertise 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 CI/CD tools, Git, and build systems.
• Ability to troubleshoot production issues and support root cause analysis.

Responsibilities

• Design, develop, and maintain backend services and APIs using Java 8/17/21.
• Build and manage microservices with Spring Boot and related frameworks.

Skills

Java backend

Spring Boot

Hibernate / JPA

RESTful APIs

SQL & NoSQL

CI/CD & DevOps

GIT / version control

Tools

Git

Maven/Gradle

Docker

Kubernetes

Job description

Req ID: 64117Job Function: Software EngineeringPosting Start Date: 29/10/2026Posting End Date: 15/11/2026Division: NetworksJob Location: IND-Bengaluru-PritechAdvertised Salary: CompetitiveJob Req ID: 64117Posting Date: 15-Nov-2026Function: Software EngineeringLocation: BengaluruSalary: CompetitiveAbout the role• Specific business area:o Revenue growth, customer experience, differentiationo Business continuity, operational backboneo Cost optimization, operational stabilityo Data-driven decision makingo Scalability, resilience, efficiencyo Risk mitigation, regulatory complianceo 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-designed architectures and proactive defect prevention. Supports 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.• Link to strategy:1. Core Technical Foundation (Must-Have) -Be strong in fundamentals that never change.Focus Areas:Data Structures & AlgorithmsObject-Oriented Design & SOLID principlesDesign PatternsClean Code & Refactoring2. Programming Language Mastery (Java-Focused)- Go deep rather than wide.Focus Areas:Java 8/11/17/21 featuresStreams, Lambdas, ConcurrencyJVM internals & performance3. Backend & Microservices Architecture - Build scalable, production-ready systems.Focus Areas:Spring Boot, Spring CloudRESTful APIsMicroservices design patternsResilience, Circuit Breakers4. Database & Data Strategy- the right data store and model efficiently.Focus Areas:SQL (Postgres, MySQL)NoSQL (MongoDB, Cassandra)Transactions, Indexing, Performance5. DevOps & Cloud Readiness - Develop with deployment and scalability in mind.Focus Areas:Docker & KubernetesCI/CD pipelinesCloud basics (AWS/Azure/GCP)6. Engineering Excellence & Quality - Write code that is reliable, testable, and secure.Focus Areas:Unit & Integration TestingCode reviewsObservability (logs, metrics, tracing)7. Career Progression StrategyGoal: Move from Developer Senior Tech Lead / Architect.What you’ll be doing• Design, 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 support CI/CD pipelines.• Collaborate with architects, DevOps, QA, and product teams.• Participate in code reviews and contribute to design discussions.• Troubleshoot production issues and support root cause analysis.Essential Skills / Experience• 4–9 years of hands-on experience in Java backend development.• Strong expertise in Java 8 / 17 / 21, including Streams and concurrency concepts.• Proven 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 analytical 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 support CI/CD pipelines.• Collaborate with architects, DevOps, QA, and product teams.• Participate in code reviews and contribute to design discussions.• Troubleshoot production issues and support 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.