Senior Backend Engineer
Location: Corporate Office-Kuala Lumpur
Time Type: Full time
Job Description
Join DayOne – Shaping the Future of Data Infrastructure
DayOne is a global leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started.
As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure.
If you're passionate about innovation, technology, and growth, we invite you to be part of DayOne’s next chapter.
Key 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.
Technical Skills
• 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
DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
If you're ready to grow with one of the fastest-moving companies in the data center industry, apply now and be part of our global journey.
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