Sr. Java Developer with ReactJS

ITMC Systems, Inc; Mechanicsburg (Cumberland County); On-site; USD 110,000 - 140,000; Full time

Job summary

ITMC Systems, Inc. is seeking a Sr Java Developer with ReactJS to join our onsite teams in Lake Mary, FL or Mechanicsburg, PA. You will develop backend services and microservices using Core Java and Spring Boot, and design RESTful APIs to support scalable applications.

The role includes writing tests, collaborating in code reviews and Agile ceremonies, and maintaining clear technical documentation. Strong Java, REST, and database skills (DB2 a plus) are essential for success.

Qualifications

• 3+ years of professional Java development experience.
• Strong knowledge of Core Java, OOP, collections and exceptions.
• Experience building and consuming REST APIs.
• Familiarity with SQL and DB2 preferred.
• Proficient with Git/SVN, JIRA, and API testing practices.
• Excellent onsite collaboration in Lake Mary, FL or Mechanicsburg, PA.

Responsibilities

• Develop and maintain backend services and microservices using Core Java and Spring Boot.
• Design, build, and integrate well-documented RESTful APIs.
• Work with relational databases to write SQL queries and manage data.
• Write comprehensive unit and integration tests, troubleshoot defects, and support production releases.
• Participate in code reviews, technical discussions, Agile ceremonies, and maintain clear technical documentation.

Skills

Core Java

OOP Principles

REST APIs

SQL/Relational DBs

Git/JIRA

Testing Practices

Communication

On-site Collaboration

Tools

Spring Boot

DB2

REST API Testing Tools

Job description

Position: Sr Java Developer with ReactJS

Locations: Onsite – Lake Mary, FL and Mechanicsburg, PA

Role Overview & Key Responsibilities:

• Develop and maintain backend services and microservices using Core Java and Spring Boot.
• Design, build, and integrate well-documented RESTful APIs.
• Work with relational databases (such as DB2) to write SQL queries and manage application data.
• Write comprehensive unit and integration tests, troubleshoot defects, and support production releases.
• Participate in code reviews, technical discussions, Agile ceremonies, and maintain clear technical documentation.

Required Qualifications & Skills:

• 3+ years of professional Java development experience.
• Strong knowledge of Core Java, OOP principles, collections, and exception handling.
• Proven experience building and consuming REST APIs.
• Familiarity with SQL and relational databases (DB2 experience preferred).
• Working knowledge of Git/SVN, JIRA, and software/API testing practices.
• Strong communication, problem-solving skills, and ability to work onsite in Lake Mary, FL or Mechanicsburg, PA.