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Principal Software Engineer, Backend

Date: 01-Dec-2022

Location: Singapore, Singapore

Company: Singtel Group

At Singtel, we're working on projects that push the boundaries of digital, realising our vision and purpose to Empower Every Generation. We have a dynamic and diverse team, with a passion for innovation, and talent to deliver cutting-edge digital solutions and immersive customer experience.


In Group IT, we create great technology that can change the future, and we're looking for people to be part of our digital and 5G journey. If you like to work in a dynamic, leading communications technology group to deliver innovations and excellence across the region, come join our digital, software engineering, data and cyber security teams!



As a Principal Software Engineer in the Backend Chapter, you will be responsible for building applications that run in the cloud or in the data centre to support both web and mobile apps.  Using engineering best practices, the applications you build will be the highest quality and confirm to development standards.  The applications you right will be primarily written in the Java programming language with specialized services written in other languages such as JavaScript or Golang, Python, other.


You will understand service implementation approaches that support consistent and eventually-consistent data models using synchronous and asynchronous techniques and understand the fundamentals of resource optimization and concurrency. You will understand how and contribute to the design and building highly scalable applications running in both the cloud and on-premise data centres and the principles of micro-services. You will mentor and guide the software engineering teams to the best practices and build an awesome engineering culture in a diverse engineering team.


Key Responsibilities

  • Development of High Performance Java Service API and Business Systems
  • Using SpringBoot to build microsservices in Java
  • Writing deployment pipelines to deploy Java microservices in Kubernetes
  • Working with AWS Services to optimize your Java applications (SQS, SNS, SES, Lambda, S3, DynamoDB, RDS, and more)
  • Contributing to the Chapter java library and framework development
  • Write integration tests for API endpoints
  • Focus on Technical leadership
  • Ensure best practices are followed in the Chapter
  • Provides mentoring and guidance


The ideal candidate should possess:

  • Bachelor's degree in Computer Science or Computer Engineering

  • Min. 15 years of software engineering experience in Java and currently in a leadership position

  • Hands-on coding & design is central part of the job of a Software Engineer (regardless of seniority)

  • Technical stack: Java 8 / Java lambda, SpringBoot, RESTFul Services, JSON API, HTTP Protocols / CORS / CSRF, Cache Control (Redis), Microservice Architectures, Containerization, Maven, Junit, Mockito, Contract testing​​​​​, Caching Systems (Hazelcast, Redis, Aerospike), RabbitMQ / Kafka / SQS, NoSQL Databases, Lambda (Serverless) Concepts

  • Deep understanding of Algorithmic Design

  • Deep understanding of Software Development Lifecycles

  • Can work in diverse large teams

  • Ability to communicate effectively



We are committed to a safe and healthy environment for our employees & customers and will require all prospective employees to be fully vaccinated.



Apply now, and ignite our digital future together.