L3 App Support Engineer - Java/Spring Boot & Angular

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

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.