Application Support Specialist

re-zoo-me; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

re-zoo-me is seeking a production support engineer to maintain and support business-critical applications in a fast-paced production environment. You will handle L2/L3 support, incident management, and root cause analysis with a focus on system stability.

You will work with Unix/Linux, SQL, Grafana, ELK, MQ/Kafka, and CI/CD tooling to monitor, diagnose, and resolve issues. On-call rotations and collaboration with development and infrastructure teams are essential.

Qualifications

• 4 to 6 years of experience in Application/Production Support.
• Strong Unix/Linux hands-on experience.
• Strong SQL skills for data analysis.
• Experience supporting production-critical applications.
• Proficient in incident management and root cause analysis.
• Experience with Grafana/ELK.
• Knowledge of MQ or Kafka messaging.
• Familiarity with CI/CD and release support.
• Ability to manage multiple priorities in fast-paced environments.
• Strong communication and stakeholder management.

Responsibilities

• Provide L2/L3 application support for production systems, ensuring high availability and operational stability.
• Investigate, troubleshoot, and resolve application, system, and data-related issues.
• Perform incident management, problem management, and root cause analysis for production incidents.
• Execute SQL queries to analyze data, troubleshoot issues, and support business investigations.
• Utilize Unix/Linux environments for monitoring, diagnostics, log analysis, automation, and operational support activities.
• Monitor application health using Grafana, ELK, MQ/Kafka, and related monitoring platforms.
• Collaborate with development, infrastructure, and business teams to drive timely issue resolution.
• Support deployment activities, release validation, and production readiness processes.
• Contribute to process improvements, documentation, and operational excellence initiatives.
• Participate in on-call or production support rotations as required.

Skills

Unix/Linux

SQL

Incident management

Root cause analysis

Communication

Stakeholder management

Production support

On-call

Tools

Grafana

ELK

MQ/Kafka

CI/CD

Job description

Project Description:

As a member of our Software Engineering Group, you will play a key role in supporting and maintaining business-critical applications in a production environment. The primary focus of this role is L2/L3 application support, incident management, troubleshooting, and ensuring system stability and availability. You will work closely with development teams, infrastructure teams, and business stakeholders to investigate issues, perform root cause analysis, and support continuous service improvements.

This position is ideal for professionals with a strong production support background and hands-on expertise in Unix/Linux and SQL who are comfortable operating in a fast-paced support environment.

Responsibilities:

• Provide L2/L3 application support for production systems, ensuring high availability and operational stability.
• Investigate, troubleshoot, and resolve application, system, and data-related issues.
• Perform incident management, problem management, and root cause analysis for production incidents.
• Execute SQL queries to analyze data, troubleshoot issues, and support business investigations.
• Utilize Unix/Linux environments for monitoring, diagnostics, log analysis, automation, and operational support activities.
• Monitor application health using tools such as Grafana, ELK, MQ/Kafka, and related monitoring platforms.
• Collaborate with development, infrastructure, and business teams to drive timely issue resolution.
• Support deployment activities, release validation, and production readiness processes.
• Contribute to process improvements, documentation, and operational excellence initiatives.
• Participate in on-call or production support rotations as required.

Mandatory Skills Description:

• 4 to 6 years of experience in Application Support, Production Support, or a similar L2/L3 support role.
• Strong hands‑on experience working with Unix/Linux operating systems.
• Strong hands‑on SQL skills, including query writing, troubleshooting, and data analysis.
• Proven experience supporting business-critical applications in production environments.
• Strong troubleshooting, incident management, and root cause analysis skills.
• Experience working with monitoring and observability tools such as Grafana and ELK.
• Exposure to messaging technologies such as MQ or Kafka.
• Familiarity with CI/CD processes and release support activities.
• Ability to manage multiple priorities in a fast-paced production support environment.
• Strong communication and stakeholder management skills.

Nice-to-Have Skills Description:

• Basic to intermediate knowledge of Java.
• Experience with Python or Shell (Bash) scripting for automation and operational tasks.
• Knowledge of WebSocket and SFTP integrations.
• Exposure to SRE practices and production monitoring frameworks.