Full Stack Engineer (Java)

Insight Global; Concord (CA); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Insight Global in Concord, CA is seeking a Senior Software Engineer to join a growing team. This permanent full-time role offers a hybrid schedule (2 days onsite, 3 days remote) with backend focus.

You will spend roughly 60% on backend development with Java, Spring Boot, APIs, Kafka, AWS, OCI, and React, while also contributing to frontend improvements. The role emphasizes building scalable, high-volume transaction processing capabilities.

Qualifications

• 5+ years of Java development experience.
• 4+ years of Spring Boot experience.
• 4+ years API design, build, and integration experience.
• 4+ years with Kafka, RabbitMQ or similar asynchronous messaging.
• Front-end experience with React for ~40% of time.
• Willingness to be in the office 2 days per week.

Responsibilities

• Design, build, and maintain core platform functionality using Java and Spring Boot.
• Develop and support APIs and system integrations.
• Troubleshoot and optimize performance, scalability, and memory usage.
• Work with high-volume EDI and XML document processing.
• Support PDF and image processing capabilities.
• Build asynchronous messaging solutions using Kafka or similar technologies.
• Develop user-facing features and enhancements in React.
• Contribute to architecture decisions and help shape the platform's direction.

Skills

Java

Spring Boot

API design

Kafka / RabbitMQ

React

On-site 2x a week

Tools

AWS

OCI

Job description

Title: Full Stack Developer (Backend Focused in Java)

Duration: Permanent / Full-time

Hybrid Work Model: 2 days onsite, 3 days remote

Location: Concord, CA 94520

Exact compensation may vary based on several factors, including skills, experience level, and education. Benefit package for this role includes medical, dental, and vision insurance

REQUIRED SKILLS AND EXPERIENCE

• 5+ years of Java development experience
• 4+ years of Spring Boot experience
• 4+ years of API experience designing, building, and integrating APIs
• 4+ years of experience with Kafka, RabbitMQ or similar with asynchronous messaging
• Comfortable working on the front end 40% of your time with React
• Ability to be in office 2x days per week

NICE TO HAVE SKILLS AND EXPERIENCE

• React, Angular, or Vue Experience
• EDI and XML

JOB DESCRIPTION

We're looking for a Senior Software Engineer to join a growing team that is helping modernize and expand a leading enterprise platform following a recent acquisition. This is a full-time, direct-hire position with a hybrid schedule (2 days onsite). This is a backend-focused full stack role, with approximately 60% backend development and 40% frontend development. You'll primarily work with Java, Spring Boot, APIs, Kafka, AWS, OCI, and React while helping design and enhance a high-volume platform that processes critical business transactions.

KEY RESPONSIBILITIES

• Design, build, and maintain core platform functionality using Java and Spring Boot
• Develop and support APIs and system integrations
• Troubleshoot and optimize application performance, scalability, and memory utilization
• Work with high-volume EDI and XML document processing
• Support PDF and image processing capabilities
• Build and maintain asynchronous messaging solutions using Kafka or similar technologies
• Develop user-facing features and enhancements in React
• Contribute to architecture decisions and help shape the future direction of the platform