Senior Java Backend Engineer — JVM Tuning & Concurrency

HireOn Tech; Alpharetta (GA); On-site; USD 120,000 - 170,000; Full time

Job summary

HireOn Tech in Alpharetta, GA is seeking a Senior Java Backend Developer to lead server-side design and implementation with a focus on core Java, multithreading, and high-performance systems.

The role requires 13+ years of Java experience, strong hands-on work with Spring Boot, REST APIs, and backend development, plus solid knowledge of JVM memory management and debugging. You will collaborate with cross-functional teams to deliver scalable software.

Qualifications

• 13+ years of Java development experience.
• Strong hands-on experience with Core Java, OOP, Collections, and Data Structures.
• Expertise in multithreading, concurrency, synchronization, thread pools, and concurrent collections.
• Strong understanding of JVM, memory management, and performance tuning.
• Experience with Spring Boot, REST APIs, and backend application development.
• Knowledge of SQL databases, design patterns, and debugging.
• Strong problem-solving and communication skills.

Skills

Java development

Core Java

OOP

Collections

Data structures

Multithreading

Memory management

Performance tuning

Spring Boot

REST APIs

Backend development

SQL databases

Design patterns

Debugging

Problem solving

Communication

Job description

HireOn Tech in Alpharetta, GA is seeking a Senior Java Backend Developer to lead server-side design and implementation with a focus on core Java, multithreading, and high-performance systems.

The role requires 13+ years of Java experience, strong hands-on work with Spring Boot, REST APIs, and backend development, plus solid knowledge of JVM memory management and debugging. You will collaborate with cross-functional teams to deliver scalable software.