L3 Support Analyst

Acestack; Mount Laurel Township (NJ); On-site; USD 90,000 - 120,000; Full time

Job summary

Acestack is seeking an L3 Application Support Engineer to provide advanced production support for Java/Spring Boot/Angular-based applications. You will drive deep technical troubleshooting, root cause analysis, and permanent fixes in close collaboration with development, infrastructure, and DevOps teams to ensure high availability and performance.

The role requires 6–10 years of relevant experience and an ability to rotate shifts in a fast-paced environment.

Qualifications

• 6–10 years of relevant application support & development experience.
• Experience with Java, Spring Boot, and Angular.

Responsibilities

• Debugging & Troubleshooting: Identify and fix complex bugs in Angular applications.
• Maintenance & Enhancement: Update and optimize Angular (v2+) apps for performance.
• API Integration: Connect frontend components to RESTful services and backend systems.
• Observability: Use Dynatrace or similar tools to monitor health and performance.
• Testing & QA: Write unit tests with Jasmine or Karma to ensure quality.
• Collaboration: Work with UX/UI designers to translate designs into HTML/CSS/TypeScript.
• On-call: Participate in on-call rotations for 24x7 support.

Tools

Java

Spring Boot

Angular

Job description

Role: L3 Support Analyst

Location: Mount Laurel, NJ Onsite

Fulltime Permanent

Job Description

L3 Application Support Engineer

Technology Stack: Java, Spring Boot, Angular

Experience: 6 10 years (relevant application support & development experience)

Shift: Yes may require rotational shifts

Job Summary

The L3 Application Support Engineer will provide advanced production support for business-critical applications built using Java, Spring Boot, and Angular. This role focuses on deep technical troubleshooting, root cause analysis, and permanent fix implementation, working closely with development, infrastructure, and DevOps teams to ensure high availability and performance of applications.

Key Responsibilities

• Debugging & Troubleshooting: Identifying, analyzing, and fixing complex bugs within the Angular framework.
• Maintenance & Enhancement: Updating existing Angular (v2+) applications to improve performance and functionality.
• API Integration: Connecting frontend components with RESTful services and backend systems.
• Leverage Dynatrace and observability tools to monitor application health, analyze performance, and proactively identify issues.
• Performance Optimization: Ensuring high-performance rendering on both desktop and mobile through efficient coding and lazy loading.
• Testing & QA: Writing unit tests using frameworks like Jasmine or Karma to ensure code quality.
• Collaboration: Working with UX/UI designers to translate designs into functional HTML/CSS/TypeScript code.
• Work with L2 support teams to guide issue triage and resolution.
• Ensure adherence to SLAs, incident management, and change management processes.
• Participate in on-call / rotational shifts as part of 24x7 support coverage.
• Maintain and improve support documentation, runbooks, and SOPs.
• Proactively identify stability, performance, and security improvements.