Senior Java Developer: Spring Boot, Microservices & APIs

Quantumtech Inc; United States; On-site; USD 110,000 - 150,000; Full time

Job summary

Quantumtech Inc. in the United States is seeking an experienced Java Developer with 4+ years of hands-on experience to design, develop, and maintain scalable Java-based applications, leveraging Core Java, Spring Boot, and microservices.

You will build RESTful APIs, work with relational and NoSQL databases, ensure security and performance, and collaborate with frontend, QA, and DevOps teams in an Agile/Scrum environment, delivering high-quality code and documentation.

Qualifications

• 4+ years of hands-on Java development experience.
• Strong knowledge of Core Java, Spring Framework, and Spring Boot.
• Experience with REST APIs, microservices, and database technologies.
• Familiarity with SQL and NoSQL databases.
• Proficient with Git, CI/CD, and unit testing (JUnit/Mockito).

Responsibilities

• Design, develop, test, and maintain Java-based applications.
• Build scalable backend services using Java and Spring Boot.
• Develop RESTful APIs and microservices.
• Write clean, efficient code and perform code reviews.
• Collaborate with cross-functional teams including frontend, QA, and DevOps.
• Ensure application performance and security.

Skills

Java Development

Spring Boot

Microservices

REST APIs

SQL/NoSQL

JUnit/Mockito

Agile/Scrum

Education

Bachelor's or Master's in CS/IT

Tools

Hibernate/JPA

Maven/Gradle

Git/Jenkins

Docker

Kubernetes

Job description

Quantumtech Inc. in the United States is seeking an experienced Java Developer with 4+ years of hands-on experience to design, develop, and maintain scalable Java-based applications, leveraging Core Java, Spring Boot, and microservices.

You will build RESTful APIs, work with relational and NoSQL databases, ensure security and performance, and collaborate with frontend, QA, and DevOps teams in an Agile/Scrum environment, delivering high-quality code and documentation.