L2 Application Support Engineer

L2 Application Support Engineer Location: Singapore Employment Type: Full-time Experience: 1 to 9 Years About the Role We are looking for motivated and technically strong Application Support Engineers to support business-critical enterprise applications in a high-availability environment. You will be responsible for monitoring production systems, resolving incidents, performing root cause analysis, and ensuring smooth day-to-day operations of mission-critical applications. This role is ideal for candidates who enjoy troubleshooting complex technical issues, working with cross-functional teams, and supporting large-scale Java-based applications. Key Responsibilities

• Provide Level 2 application support for production environments.

• Investigate, troubleshoot, and resolve production incidents within agreed service levels.

• Perform root cause analysis (RCA) and recommend preventive measures.

• Monitor production applications and ensure system availability.

• Write and optimize SQL queries for troubleshooting, reporting, and data validation.

• Analyse application logs and identify performance bottlenecks.

• Coordinate with development, infrastructure, database, and business teams during incident resolution.

• Support deployment activities, rollback procedures, and production releases.

• Monitor and restart batch jobs where required.

• Maintain operational documentation, SOPs, runbooks, and knowledge articles.

• Prepare operational reports and participate in service review meetings.

• Ensure compliance with operational and security standards.

Required Technical Skills

• Strong knowledge of Java (Core Java)

• Experience with Spring Boot and Microservices

• SQL query writing, troubleshooting, and performance tuning

• Hibernate ORM

• REST APIs and API troubleshooting

• Exception handling and debugging

• Basic understanding of Kafka or messaging platforms

Platform & Tools

• Splunk

• Kibana

• Jenkins

• OpenShift or Kubernetes

• MariaDB or other relational databases

• Git or other version control tools

Functional Knowledge

• Production Support (L2/L3)

• Incident Management

• Problem Management

• Change Management

• Core Banking application exposure is advantageous

• Understanding of transaction processing

• Basic knowledge of Savings and Current Account interest calculations is an advantage

Preferred Knowledge

• ACID database principles

• Distributed systems

• Horizontal and vertical scalability concepts

• Middleware and API Gateway technologies

• Batch processing environments

Experience Levels Junior Application Support Engineer (1 to 3 Years)

• Support production incidents.

• Monitor application health.

• Restart failed batch jobs.

• Maintain operational documentation.

• Assist senior engineers during troubleshooting.

Application Support Engineer (4 to 6 Years)

• Independently resolve production incidents.

• Perform SQL analysis and troubleshooting.

• Support deployment and rollback activities.

• Participate in root cause analysis.

• Collaborate with multiple technical teams.

Senior Application Support Engineer (6 to 9 Years)

• Lead complex production incident resolution.

• Perform advanced debugging of Java applications.

• Drive RCA and continuous service improvements.

• Mentor junior support engineers.

• Participate in service governance and operational reviews.

Requirements

• Diploma or Bachelor's Degree in Computer Science, Information Technology, Engineering, or a related discipline.

• Strong analytical and problem-solving abilities.

• Excellent communication and stakeholder management skills.

• Ability to work in a fast-paced production support environment.

• Good documentation and reporting skills.

• Proficiency in Microsoft Office applications.

Preferred Candidates Singapore Citizens are encouraged to apply. How to Apply Interested applicants may submit their updated resume to: [email protected]