Senior Software Engineer

Overview

Activate Interactive Pte Ltd (“Activate”) is a leading technology consultancy headquartered in Singapore with a presence in Malaysia and Indonesia. Our clients are empowered with quality, cost-effective, and impactful end-to-end application development, like mobile and web applications, and cloud technology that remove technology roadblocks and increase their business efficiency.

We believe in positively impacting the lives of people around us and the environment we live in through the use of technology. Hence, we are committed to providing a conducive environment for all employees to realise their full potential, who in turn have the opportunity to continuously drive innovation.

We are searching for our next team members to join our growing team.

If you love the idea of being part of a growing company with exciting prospects in mobile and web technologies that create positive impact on people’s lives, then we would love to hear from you.

Co-Development Business Unit is looking for Senior BackEnd Engineer

This is a fixed term contract. The engagement is 12 months

Internal Code: A25135

We are seeking a skilled Senior Backend Engineer to join our agile development team. In this role, you will be responsible for designing, developing, and maintaining scalable backend services and APIs, while contributing to architectural decisions and mentoring junior developers.

• Design and develop robust, scalable backend services using Java Spring Boot/Kotlin/C#
• Architect and implement RESTful APIs and microservices following best practices
• Design and implement cloud-native solutions using AWS services
• Lead the design and implementation of database schemas and data models
• Ensure high performance, reliability, and security of backend systems
• Collaborate with frontend developers and other stakeholders to define and implement API contracts
• Mentor junior developers and conduct thorough code reviews
• Participate in system design discussions and technical planning
• Implement and maintain CI/CD pipelines
• Troubleshoot production issues and optimise system performance

• 8+ years of professional software development experience
• Strong expertise in either Java Spring Boot, Kotlin, or C# (.NET Core)
• Extensive experience with RESTful APIs and microservices architecture
• Proven experience with AWS services including:
• AWS Lambda and serverless architecture
• Amazon ECS/EKS
• Amazon RDS and DynamoDB
• Amazon S3
• AWS CloudFormation/CDK
• Amazon CloudWatch
• AWS IAM and security best practices
• Proficient in SQL and experience with both relational and NoSQL databases
• Strong understanding of software design patterns and principles (SOLID, DRY, etc.)
• Experience with version control systems (Git) and CI/CD practices
• Knowledge of testing methodologies and frameworks (JUnit, TestNG, NUnit)
• Experience with agile development practices
• Strong analytical and problem-solving skills

• AWS certifications (Solutions Architect, Developer)
• Experience with container orchestration (Kubernetes, Docker)
• Experience with message queuing systems (Kafka, RabbitMQ)
• Familiarity with reactive programming
• Experience with Singapore Government IT projects
• Knowledge of Singapore Government Technology Stack (SGTS)
• Experience integrating with SingPass and CorpPass authentication
• Understanding of government security policies and compliance requirements
• Experience with performance monitoring tools and APM solutions
• Experience with event-driven architecture
• Languages: Java 11+/Kotlin/C#
• Frameworks: Spring Boot, Spring Cloud, .NET Core
• Infrastructure as Code using Terraform
• Databases: PostgreSQL, MySQL, MongoDB, DynamoDB
• Tools: Maven/Gradle, Git, Jenkins/GitLab CI
• Testing: JUnit, Mockito, TestContainers
• Documentation: Swagger/OpenAPI
• Monitoring: CloudWatch, ELK Stack, Prometheus, Grafana

• Opportunity to work on impactful government digital services
• Technical leadership opportunities
• Professional development and AWS certification support
• Competitive compensation package
• Flexible working arrangements
• Regular knowledge sharing sessions
• Collaborative team environment

If you are passionate about backend development and cloud architecture, and want to contribute to meaningful public sector projects, we would love to hear from you.

Does it sound like something you are interested in exploring further? Please be in touch with our team for an initial chat at

Activate Interactive Singapore is an equal opportunity employer. Employment decisions will be based on merit, qualifications and abilities. Activate Interactive Pte Ltd does not discriminate in employment opportunities or practices on the basis of race, colour, religion, gender, sexuality, national origin, age, disability, marital status or any other characteristics protected by law.

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Your personal data will be processed for the purposes of managing Activate Interactive Pte Ltd’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results, and as is otherwise needed in the recruitment and hiring processes.

Please consult our Privacy Notice ( to know more about how we collect, use, and transfer the personal data of our candidates. Here you can find how you can request for access, correction and/or withdrawal of your Personal Data.