Backend Engineer

MANDATORY SKILLS:

• Technical Skills
• Degree or Diploma in Computer Science, Computer or Electronic
• Engineering, Information Technology, or related disciplines.
• Experience with Git and modern branching workflows (GitFlow, trunk-based development).
• Proficiency in modern backend programming languages: Java, Kotlin, Python, Golang, Node.js, Ruby.
• Experience with cloud platforms (AWS, Azure, Google Cloud).
• Strong understanding of RESTful APIs, GraphQL, gRPC, WebSockets.
• Familiarity with microservices architecture and event-driven patterns (Kafka, RabbitMQ).
• Hands-on experience with containerization and orchestration tools (Docker, Kubernetes).
• Experience with CI/CD pipelines (GitHub Actions, GitLab CI, ArgoCD). Knowledge of database technologies (PostgreSQL, MySQL, MongoDB, DynamoDB, Redis).
• Experience with observability tools (Prometheus, OpenTelemetry, Grafana, ELK stack).
• Experience with Infrastructure as Code (IaC) tools (Terraform, CloudFormation, Pulumi).
• Experience with API documentation using Swagger.
• Experience with Search technologies (Elastic, Redis)

• Experience working in Agile teams (Scrum, Kanban) with strong collaboration skills.
• Knowledge of Extreme Programming (XP) practices such as TDD, pair programming, continuous refactoring.
• Strong understanding of test automation frameworks (JUnit, PyTest, Jest, Playwright).
• Adherence to software craftsmanship principles, ensuring clean, maintainable, and efficient code.

EXPERIENCE ADVANTAGE:

• Understanding of Domain-Driven Design (DDD) and Clean Architecture principles.
• Experience working with government digital services and authentication mechanisms (SingPass, CorpPass).
• Experience with API gateways and service meshes (Kong, Istio, Apigee).
• Experience with serverless computing (AWS Lambda, Azure Functions).
• Hands on development and tuning of Elasticsearch clusters.
• Implement hybrid search that blends BM25 with dense and sparse semantic embeddings or graph based embeddings to enrich search results.

JOB RESPONSIBILITIES:

• The Backend Engineer is responsible for designing, developing, and maintaining scalable and secure backend services that power digital products. The role requires expertise in software engineering principles, modern development practices, and cloud-native architecture. Engineers must work in an agile, DevOps driven environment, ensuring high software quality, reliability, and security.
• Collaborate with Business Analysts (BA) and Product Managers to refine user stories and translate them into technical requirements.
• Work with Quality Assurance (QA) engineers to ensure automated test coverage and proactively fix bugs and defects.
• Partner with DevOps teams to automate build, deployment, and monitoring pipelines.
• Develop and maintain scalable, high-performance APIs and backend services in a cloud-native environment.
• Implement modern software development practices, including TDD, pair programming, and CI/CD.
• Conduct code reviews, enforce security best practices, and ensure software craftsmanship standards.
• Design and document system architecture, ensuring compliance with government security and regulatory standards.
• Optimize and improve backend systems for scalability, observability, and reliability. Where applicable, contribute to blockchain and smart contract development.