Application Support (L1 / L2)

We are looking for a proactive and detail-oriented Application Support (L1/L2) to join our IT Operations team.

The role is responsible for support the production environment across multiple systems, covering L2 support, monitoring, troubleshooting, integration support, testing, and coordination with internal/external teams.

You will be working closely with L3 support and development teams to resolve issues efficiently and maintain service quality.

Key Responsibilities

• Provide first-level support for application-related issues, , integration, data, and configuration issues. and service requests
• Monitor application performance and system health (alerts, logs, dashboards)
• Perform incident triage, analysis, and initial troubleshooting
• Escalate complex issues to L3 teams with proper documentation and logs
• Investigate issues using SQL queries, logs, and system monitoring tools
• Execute basic data validation and correction in databases when required
• Follow standard incident management and SLA processes
• Maintain proper documentation of issues, solutions, and known errors
• Participate in on call support or shift rotation if required

Requirements

Skills & Qualifications 

• Bachelor’s degree in Computer Science, IT, or related field 

• 0–3 years of experience in Application Support / IT Support / Operations 

• Basic knowledge of SQL (querying, joins, data validation) 

• Basic understanding of system architecture and integration concepts
• Strong analytical and problem-solving skills
• Good communication skills (written and verbal) - English & Thai
• Ability to work under pressure and meet SLA timelines
• Shift-based working setup (depending on the work)

Technical Skills 

• Database: SQL (SELECT, JOIN, basic troubleshooting), Shellscript, Windows Server, and Integration support
• Monitoring/Logs: Basic log analysis (application/server logs)
• Others (optional but a plus):
• Ticketing tools (ServiceNow, Jira, etc.)
• Experience with Electronic Document Management / Electronic Document Processing systems.
• Experience supporting integrated enterprise applications.