Senior Software Engineer

DAYONE DATA CENTERS SINGAPORE PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading cloud services provider in Singapore is looking for a Senior Backend Software Engineer to design and maintain scalable backend services and APIs. The ideal candidate should have 8 to 10 years of experience, strong skills in Java and Python, and familiarity with microservices and cloud technologies. You'll work in an agile environment, focusing on high-quality software delivery and collaboration with cross-functional teams.

Qualifications

• 8 to 10 years of experience in backend software engineering.
• Strong programming skills in Java (Spring Boot) and Python.
• Proven experience with microservices and REST APIs.

Responsibilities

• Design, build, and maintain scalable backend services and APIs.
• Integrate services with databases and external systems.
• Collaborate in Agile/Scrum teams for delivery.

Skills

Java

Python

REST API Development

Microservices Architecture

Event-driven Systems

Containerization (Docker)

Kubernetes

Agile Methodologies

Security Best Practices

React or Angular

Tools

Spring Boot

GitHub

Jenkins

Prometheus

ELK

Grafana

Kafka

Job description

We are looking for a Senior Backend Software Engineer with about 8 to 10 years’ experience to design, build, and maintain scalable backend services and APIs for our cloud-based and on-prem platforms. The ideal candidate has experience in Java and Python, strong knowledge of API development, microservices architecture, event-driven systems, and is capable of working in an agile environment to deliver high-quality, secure, and maintainable software. Good knowledge of Containerization (Docker) and Orchestrations (k8’s) is required. Strong knowledge of Python libraries for machine learning is a plus.

Responsibilities

Backend & API Development

• Architect, develop, and maintain backend services and microservices using Java (Spring Boot) and/or Python
• Design and implement RESTful and/or gRPC APIs, ensuring high performance, scalability, and reliability.
• Integrate backend services with databases, message queues, and external systems such as SAP, BMS (OT systems) etc.

System Architecture & Scalability

• Design and implement distributed, event-driven, and real-time data streaming systems.
• Contribute to system architecture and design decisions (domain-driven design, microservice decomposition, API contracts, caching strategies, etc.)
• Optimize system performance and scalability, including async processing, caching, load balancing, and DB optimization.

Cloud, DevOps & CI/CD

• Deploy and operate services on AWS / Azure / GCP with containerization (Docker, Kubernetes).
• Collaborate with DevOps teams on CI/CD pipelines (GitHub, Jenkins), monitoring, and logging tools (Prometheus, ELK, Grafana).

Software Quality & Collaboration

• Write clean, testable, and maintainable code using unit tests, integration tests, TDD and code review best practices.
• Work closely with frontend, DevOps, QA, and product teams in Agile/Scrum delivery.

Requirements

• Strong programming skills in Java (Spring Boot) and Python
• Strong experience in building REST API’s & Microservices
• Strong understanding of Software architecture
• Experience with message queues & streaming (MQTT, Kafka etc)
• Experience deploying on cloud with docker & Kubernetes
• Experience with node.js runtime env
• Proven experience of implementing security best practices such as OAuth2, JWT, Zero Trust
• Experience in React or Angular
• Understanding of Edge services is a plus