Java Developer jobs in United States
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Quantum World Technologies Inc. · 1 day ago

Java Developer

Quantum World Technologies Inc. is seeking a Java Fullstack Developer to design and develop responsive web applications. The role involves building backend services, creating frontend interfaces, and implementing RESTful APIs while collaborating in an Agile environment.

ConsultingHuman ResourcesInformation TechnologyStaffing Agency
Hiring Manager
Himanshu Singh
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Responsibilities

Design and develop responsive, user-friendly web applications from scratch
Build robust backend services using Java + Spring Boot
Create modern frontend interfaces using React / Angular / Vue
Design and implement RESTful APIs / GraphQL endpoints
Work with relational (PostgreSQL, MySQL) and NoSQL (MongoDB) databases
Implement business logic, authentication (JWT, OAuth2), authorization & security best practices
Write unit/integration tests (JUnit, Mockito, Jest, etc.)
Participate in code reviews, debugging, performance tuning & refactoring
Collaborate in Agile/Scrum environment (Sprint planning, daily stand-ups, retrospectives)
Deploy applications using Docker, Kubernetes, CI/CD pipelines (Jenkins/GitHub Actions/GitLab CI)
Work on cloud platforms (AWS / Azure / GCP) – especially AWS ECS, Lambda, S3, RDS, etc
Stay updated with Java 17/21+, new Spring features, frontend ecosystem changes

Qualification

JavaSpring BootReact/Angular/VueRESTful APIs/GraphQLPostgreSQL/MySQLMongoDBJWT/OAuth2Docker/KubernetesCI/CD pipelinesAWS/Azure/GCPJUnit/Mockito/JestAgile/ScrumCode reviewsDebuggingPerformance tuningRefactoring

Required

Design and develop responsive, user-friendly web applications from scratch
Build robust backend services using Java + Spring Boot
Create modern frontend interfaces using React / Angular / Vue
Design and implement RESTful APIs / GraphQL endpoints
Work with relational (PostgreSQL, MySQL) and NoSQL (MongoDB) databases
Implement business logic, authentication (JWT, OAuth2), authorization & security best practices
Write unit/integration tests (JUnit, Mockito, Jest, etc.)
Participate in code reviews, debugging, performance tuning & refactoring
Collaborate in Agile/Scrum environment (Sprint planning, daily stand-ups, retrospectives)
Deploy applications using Docker, Kubernetes, CI/CD pipelines (Jenkins/GitHub Actions/GitLab CI)
Work on cloud platforms (AWS / Azure / GCP) – especially AWS ECS, Lambda, S3, RDS, etc
Stay updated with Java 17/21+, new Spring features, frontend ecosystem changes

Company

Quantum World Technologies Inc.

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QUANTUM WORLD TECHNOLOGIES INC, is a IT Consulting and Staffing venture of QUANTUM GROUP OF COMPANIES having its presence in IT and I.T.E.S, Real Estate, Hospitality, Pharmaceuticals, and Entertainment Industries across the globe, with its headquarters in Los Alamitos CA, Parsippany – NJ, Seattle – WA, Canada, Dubai and India.

Funding

Current Stage
Late Stage

Leadership Team

A
Ashish Srivastava
Managing Director
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Company data provided by crunchbase