Senior Backend Engineer: Java + Hadoop Modernization

Quess Selection & Services; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Quess Selection & Services in Singapore seeks an experienced Backend Engineer with strong Java and Hadoop expertise to support a Hadoop data layer modernization initiative. You will enhance backend services, integrate with existing components, and help migrate platforms while ensuring stability and quality.

The role involves testing, debugging, performance tuning, and production support across a distributed data processing environment, working with cross-functional teams to deliver reliable,

Qualifications

• Strong Java expertise with practical Hadoop ecosystem experience.
• Experience building backend services, APIs, and integration components.
• Proficient with Spring Boot / Spring Framework.
• Familiar with Git, Bitbucket, and Jira for source control and issue tracking.
• Experience with platform migration or modernization projects is a plus.

Responsibilities

• Develop and enhance Java backend services, APIs, and integration components.
• Support application modernization, platform transition, and deployment activities.
• Perform troubleshooting, performance tuning, and production support.
• Collaborate with development, QA, infrastructure, and architecture teams.
• Validate changes through testing and ensure operational readiness.

Skills

Java

Hadoop ecosystem

Distributed data platforms

Spring Boot

Back-end services

Tools

Git

Bitbucket

Jira

Job description

Quess Selection & Services in Singapore seeks an experienced Backend Engineer with strong Java and Hadoop expertise to support a Hadoop data layer modernization initiative. You will enhance backend services, integrate with existing components, and help migrate platforms while ensuring stability and quality.

The role involves testing, debugging, performance tuning, and production support across a distributed data processing environment, working with cross-functional teams to deliver reliable,