Senior Full-Stack Engineer – Java/React, Scalable Systems

Fanatics; New York (NY); On-site; USD 121,000 - 181,000; Full time

Job summary

Fanatics Betting and Gaming is seeking a Software Engineer III in the US to design, develop, test, and maintain scalable, low-latency systems. You will work across frontend and backend with Java (Spring) and React, partnering with product managers and engineers to deliver reliable features.

The role requires 3+ years of full-stack experience, familiarity with MongoDB and CI/CD, and strong problem-solving in a fast-growing environment.

Qualifications

• 3+ years of full-stack experience with Java (Spring) and React.
• Strong software engineering principles and system design knowledge.
• Experience with databases (NoSQL/relational) and data modeling.

Responsibilities

• Contribute to frontend and backend design, development, testing, and deployment.
• Collaborate with product managers and engineers to deliver features.
• Participate in code reviews and on-call rotation; improve engineering processes.

Skills

Java (Spring)

React

System design

Agile/SCRUM

Problem-solving

Communication

Ownership mindset

Tools

MongoDB

CI/CD tools

Cloud platforms

Job description

Fanatics Betting and Gaming is seeking a Software Engineer III in the US to design, develop, test, and maintain scalable, low-latency systems. You will work across frontend and backend with Java (Spring) and React, partnering with product managers and engineers to deliver reliable features.

The role requires 3+ years of full-stack experience, familiarity with MongoDB and CI/CD, and strong problem-solving in a fast-growing environment.