Senior Java & ReactJS Engineer

Apexon; Mechanicsburg (Cumberland County); On-site; USD 110,000 - 150,000; Full time

Job summary

Apexon is seeking a Sr. Java Developer with hands-on ReactJS experience to join our development team in the United States. You will build backend services in Java/Spring Boot, design REST APIs, and contribute to frontend tasks using ReactJS.

Ideal candidates have 3+ years of Java, solid OOP, knowledge of DB2 SQL, unit and integration testing, and familiarity with Git/JIRA in Agile environments. You’ll participate in code reviews, help releases, and document technical work.

Qualifications

• 3+ years of professional Java development experience.
• Strong knowledge of Core Java, OOP concepts, Collections, and Exception Handling.
• Hands-on experience with Spring Boot, REST APIs, and Microservices.
• Experience working with SQL and relational databases such as DB2.
• Knowledge of unit testing, integration testing, and API testing.
• Familiarity with Git/SVN, JIRA, and Agile development practices.

Responsibilities

• Develop and maintain backend services using Java and Spring Boot.
• Build responsive and user-friendly frontend applications using ReactJS.
• Design, develop, and integrate REST APIs.
• Work with databases and write SQL queries.
• Perform unit testing, troubleshoot issues, and fix defects.
• Participate in code reviews and Agile team discussions.
• Support application releases and maintain technical documentation.

Skills

Java backend

Core Java

OOP concepts

Collections

Exception Handling

REST APIs

Spring Boot

Microservices

SQL (DB2)

Unit testing

Git/JIRA/Agile

ReactJS frontend

Tools

Spring Boot

REST APIs

Microservices

Git

JIRA

Job description

Apexon is seeking a Sr. Java Developer with hands-on ReactJS experience to join our development team in the United States. You will build backend services in Java/Spring Boot, design REST APIs, and contribute to frontend tasks using ReactJS.

Ideal candidates have 3+ years of Java, solid OOP, knowledge of DB2 SQL, unit and integration testing, and familiarity with Git/JIRA in Agile environments. You’ll participate in code reviews, help releases, and document technical work.