Java Full Stack Engineer - Modernize FinTech Apps on Kubernetes

Quantum Technologies. LLC; Boston (MA); On-site; USD 88,000 - 125,000; Full time

Job summary

Quantum Technologies LLC seeks a seasoned Java Full Stack Developer to modernize critical banking applications. You will refactor legacy code, build microservices with Spring Boot, and create responsive UIs in React while containerizing with Docker and managing deployments on Kubernetes.

You will design and implement CI/CD pipelines, collaborate with QA, Architects, and DevOps, and contribute to security and performance optimizations in cloud-native environments.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• 8-10 years of software development experience.
• Strong hands-on experience with Java and Spring Boot.
• Experience building and consuming REST APIs.
• Hands-on experience with Docker containerization.
• Experience deploying and supporting applications on Kubernetes.
• Strong knowledge of CI/CD pipeline development and automation.
• Experience with Git-based version control systems.
• Strong debugging, troubleshooting, and performance optimization skills.
• Experience working in Agile development environments.

Responsibilities

• Refactor and modernize existing Java applications to improve maintainability, scalability, and performance.
• Design, develop, and maintain microservices using Spring Boot.
• Develop and enhance responsive user interfaces using React.
• Analyze legacy applications and implement modernization strategies.
• Participate in code reviews, enforce coding standards, and best practices.
• Containerize applications using Docker.
• Deploy, configure, and manage applications on Kubernetes clusters.
• Troubleshoot deployment, performance, and scalability issues within containerized environments.
• Support Kubernetes operations, monitoring, and platform integration.
• Build and maintain CI/CD pipelines for automated build, test, and deployment processes.
• Integrate automated quality checks and security scans into deployment pipelines.
• Collaborate with DevOps and platform engineering teams to improve deployment efficiency.
• Implement Infrastructure as Code (IaC) and deployment automation where applicable.
• Develop and maintain automated test suites.
• Support functional, regression, integration, and performance testing activities.
• Create technical documentation and deployment procedures.

Skills

Java

Spring Boot

React

REST APIs

Agile

Debugging

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

Docker

Kubernetes

CI/CD

Git

IaC

Job description

Quantum Technologies LLC seeks a seasoned Java Full Stack Developer to modernize critical banking applications. You will refactor legacy code, build microservices with Spring Boot, and create responsive UIs in React while containerizing with Docker and managing deployments on Kubernetes.

You will design and implement CI/CD pipelines, collaborate with QA, Architects, and DevOps, and contribute to security and performance optimizations in cloud-native environments.