Senior Java Developer — UAT & L2 Support

NEWBRIDGE ALLIANCE PTE. LTD.; Singapore; On-site; SGD 60,000 - 110,000; Full time

Job summary

NEWBRIDGE ALLIANCE PTE. LTD. is seeking a Java Developer with solid L2 UAT support experience to bridge development and business users, ensure stability, quick issue resolution, and smooth UAT execution.

You will triage issues, collaborate with Dev, QA, and Ops, monitor environments, run SQL investigations, and contribute to deployment readiness. Strong Java, Spring Boot, and SQL skills with excellent communication are essential.

Qualifications

• 4–8 years of experience in Java development and/or Application Support (L2).
• Strong hands-on in Core Java, Java 8+, Spring Boot, REST APIs, Microservices.
• Good knowledge of SQL (Oracle / MySQL / PostgreSQL) - ability to write complex queries for investigation.
• Proficient in log analysis, troubleshooting tools (Splunk, ELK, Dynatrace, AppDynamics - any).
• Experience with ticketing tools - JIRA, ServiceNow, Confluence.
• Familiar with Linux/Unix commands, basic shell scripting.
• Understanding of SDLC, ITIL process (Incident, Problem, Change Management).
• Excellent communication and stakeholder management skills.

Responsibilities

• Provide L2 support for applications in the UAT environment - triage, investigate, and resolve issues within defined SLAs.
• Act as a bridge between Business Users / QA / UAT testers and L3 Development team.
• Monitor UAT environment stability, batch jobs, logs, and interfaces.
• Manage incident tickets (JIRA / ServiceNow), perform RCA, and ensure proper documentation.
• Debug and fix Java application issues - analyze logs, thread dumps, heap dumps.
• Provide quick fixes, workarounds, and configuration changes for UAT.
• Support deployments, releases, and environment sanity checks.
• Execute SQL queries for data investigation and fix data issues.
• Work closely with Development, QA, DevOps, and Infrastructure teams.
• Participate in UAT calls, war rooms, and provide timely status updates to stakeholders.
• Maintain support documentation, knowledge base, and SOPs.

Skills

Java development / Application Support

Core Java

Java 8+

Spring Boot

REST APIs

Microservices

SQL

Log analysis tools

JIRA / ServiceNow / Confluence

Linux/Unix

ITIL / SDLC

Stakeholder communication

Tools

Splunk

ELK

Dynatrace

AppDynamics

JIRA

ServiceNow

Confluence

Tomcat

WebLogic

JBoss

Control-M

Autosys

Job description

NEWBRIDGE ALLIANCE PTE. LTD. is seeking a Java Developer with solid L2 UAT support experience to bridge development and business users, ensure stability, quick issue resolution, and smooth UAT execution.

You will triage issues, collaborate with Dev, QA, and Ops, monitor environments, run SQL investigations, and contribute to deployment readiness. Strong Java, Spring Boot, and SQL skills with excellent communication are essential.