ATG Consultant with support at datamaxis – Northbrook | Jobyssey

Job Summary:

We are looking for an experienced ATG Application Support Engineer with strong expertise in Java/J2EE-based web applications, hybrid environments, and cloud-based application support. The ideal candidate will have a solid background in production support, performance troubleshooting, and monitoring, along with hands-on experience in ATG Commerce platforms and modern microservices architectures.

Key Responsibilities:

Provide end-to-end production support for ATG-based e-commerce applications across Dev, QA, and Production environments
Perform advanced troubleshooting, incident resolution, and root cause analysis (RCA)
Analyze thread dumps, heap dumps, and performance issues (memory leaks, JDBC connections, session issues)
Support application migration and operations in cloud environments (AWS/Azure/GCP)
Monitor system performance and ensure high availability and reliability
Work with Microservices (MSE) / Micro Frontend (MFE) architectures
Collaborate with development teams for bug fixes, enhancements, and system improvements
Utilize monitoring and logging tools for proactive issue detection
Participate in on-call support and handle critical production incidents

Required Skills & Experience:

Minimum 5+ years of experience supporting Java/J2EE-based web applications
Strong experience with Oracle ATG (Web Commerce) platform
Expertise in application support and operational troubleshooting
Experience in Java performance tuning and profiling (thread/heap dump analysis)
Strong knowledge of Apache Tomcat, JBoss (7.x) application servers
Hands-on experience with monitoring tools such as:
- AppDynamics (preferred)
- Splunk (preferred)
- New Relic, ExtraHop, vSphere, SolarWinds Orion
Experience with traffic analysis and debugging tools (Wireshark, Fiddler, browser dev tools)
Strong SQL and Oracle database knowledge with debugging capabilities
Experience supporting applications in cloud platforms (AWS, Azure, or GCP)
Hands-on experience with hybrid application environments
Understanding of Microservices and Micro Frontend architectures
Strong analytical, troubleshooting, and problem-solving skills
Excellent communication and collaboration skills

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Required Skills & Experience: