Senior Application Support Engineer

EPAM Systems Inc; United States; Remote; USD 90,000 - 140,000; Full time

Job summary

EPAM Systems Inc. is seeking a Senior Application Support Engineer to ensure reliable operation of critical web applications across a complex environment. You will troubleshoot incidents end-to-end, monitor systems, and support deployments and on-call coverage.

You will analyze Java logs, run advanced SQL queries, and collaborate in Jira and Confluence to document runbooks and communicate status to clients across shifts and cross-functional teams.

Qualifications

• 3+ years of application support in a medium-to-large environment.
• Strong Core Java troubleshooting and log analysis.
• 3+ years of hands-on SQL querying.
• ITSM processes for incidents, problems, and changes.
• Familiarity with Elastic logs and APM tooling.
• Experience with CI/CD and Jenkins pipelines.
• Cloud experience with GCP.
• Windows IIS admin knowledge is a plus.

Responsibilities

• Resolve incidents with end-to-end troubleshooting across web, app, and DB layers.
• Analyze Java logs to identify root causes and corrective actions.
• Execute advanced SQL queries to validate data and support investigations.
• Follow ITSM/ITIL practices with clear documentation.
• Monitor systems using Elastic logs and APM to detect anomalies.
• Operate and validate Jenkins pipelines to support deployments.
• Collaborate in Jira and Confluence to track work and runbooks.
• Support releases and on-call coverage across shifts.
• Coordinate with cross-functional teams to restore service and communicate with clients.
• Capture diagnostic artifacts such as HAR files and SSL/HTTP traces when needed.

Skills

Java troubleshooting

SQL querying

ITSM/ITIL

Log analysis

Monitoring

Communication skills

English proficiency

Problem solving

Tools

Jira

Confluence

Elastic

APM

Jenkins

GCP

IIS

Job description

We are looking for a Senior Application Support Engineer to help ensure reliable operation of business-critical web applications across a complex environment. You will troubleshoot issues end-to-end, collaborate through ITSM processes, and improve monitoring and support practices.

Responsibilities

• Resolve application incidents by performing end-to-end troubleshooting across web, application, and database layers
• Analyze Java core application logs to identify root causes and recommend corrective actions
• Execute advanced SQL queries to validate data, diagnose issues, and support investigations
• Follow ITSM/ITIL practices to handle incidents, problems, and changes with clear documentation
• Monitor systems using Elastic and APM logs to detect anomalies and prevent recurrence
• Operate and validate pre-built Jenkins pipelines to support deployments and routine operational tasks
• Collaborate in Jira and Confluence to track work, document runbooks, and share knowledge
• Support releases and on-call coverage across shifts, including evenings, weekends, and scheduled windows
• Coordinate with cross-functional teams to restore service quickly and communicate status to clients
• Capture and interpret diagnostic artifacts such as browser HAR files and SSL/HTTP traces when needed

Requirements

• 3+ years of application support experience in a medium-to-large ecosystem
• Strong Core Java Development experience for troubleshooting and log-based analysis
• Strong SQL skills with 3+ years of hands-on querying and problem investigation
• ITSM process knowledge with practical incident, problem, and change management exposure
• Web application architecture understanding across web/app/DB tiers and common network fundamentals
• Log and monitoring experience with Elastic logs and APM tooling
• Strong communication skills for clear verbal and written updates and stakeholder coordination
• Upper-Intermediate English proficiency (B2) for daily collaboration and documentation
• Nice to have Windows administration knowledge including IIS Virtualization and containerization familiarity
• CI/CD principles understanding
• Cloud exposure with managing applications in GCP
• SQL performance tuning experience with indexes, transactions, procedures, and functions