Application Support Engineer (UAT & L2 Production Support)

Role Overview

The Application Support Engineer will be responsible for providing end-to-end L2 production application support and managing User Acceptance Testing (UAT) for business-critical applications. This role serves as the crucial technical link between business stakeholders, operational teams, and L3 development engineers to ensure application stability, seamless release deployments, and alignment with business requirements.

Key Responsibilities

1. User Acceptance Testing (UAT) Support & Execution

• End-to-End Testing: Support end-to-end UAT for core business applications, ensuring alignment with business workflows and acceptance criteria.
• Test Strategy & Scoping: Collaborate with business stakeholders to define UAT scope, test strategies, execution timelines, and test coverage.
• Test Case Validation: Review and validate UAT test cases covering technical specifications and end-to-end business scenarios.
• Stakeholder Bridge: Act as the technical liaison between business users and engineering teams to facilitate issue resolution and defect tracking.
• Reporting & Tracking: Deliver regular UAT status reports highlighting testing progress, identified defects, and potential project risks.

2. Production Application Support (L2) & Maintenance

• L2 Support Execution: Provide hands-on L2 application support, resolving user incidents and service requests within defined Service Level Agreements (SLAs).
• System Monitoring: Monitor application performance, system health, and batch jobs to proactively identify and mitigate technical issues.
• Troubleshooting & Log Analysis: Analyze application logs, error messages, and system behaviors in Linux environments to perform root cause analysis (RCA).
• L3 Escalation: Partner with development teams (L3 support) to investigate, troubleshoot, and resolve complex technical defects.
• Deployments & Release: Execute application builds and deployments across Linux servers following standard change management practices.

Required Qualifications & Technical Skills

• Education: Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical field.
• Experience: 3–6 years of hands-on experience in L2 Application Support, Production Support, or UAT Engineering.
• Linux Environment: Strong proficiency in Linux/Unix systems, including shell commands, log filtering, deployment scripts, and system troubleshooting.
• Database & SQL: Hands-on experience writing and executing SQL queries for data verification, log auditing, and issue diagnosis.
• Incident Management: Strong understanding of ITIL processes, SLA management, Incident Management, and Root Cause Analysis (RCA).

Preferred / Good-to-Have Experience

• Prior domain experience in Banking, Payments, Card Processing, or Financial Services.
• Experience with monitoring and ticketing tools (e.g., Jira, ServiceNow, Control-M, Geneos).
• Familiarity with CI/CD deployment pipelines and automated testing tools.

Important Note:

Please share your resume in Word format with [Confidential Information]

If this requirement is not a match for you, please feel free to refer your friends.

Interested professionals can reach out to me for a confidential discussion at +65 68177759.

Best Regards,

Arti C

Sr. Talent Acquisition

Helius Technologies Pte Ltd

36 Robinson Road, #13-05, City House, Singapore 068877

• Mobile / WhatsApp: +65 68177759
• DID: +65 6429-9407
• Email: [HIDDEN TEXT]