Senior Java Developer C2C jobs O’Fallon MO (Day One Onsite

Tech Mirrors; O’Fallon (MO); On-site; USD 100,000 - 150,000; Full time

Job summary

Tech Mirrors seeks a Senior Java Developer for an on-site role in O’Fallon, MO. The candidate will lead development and debugging of J2EE RESTful services and web applications, leveraging Spring Framework and Maven.

Strong SQL/Oracle skills, JUnit/Mockito testing, and experience with Tomcat/JBoss are required to ensure robust, scalable solutions. The position requires day-one onsite work, with a focus on delivering high-quality, maintainable code and collaborating with cross-functional teams to

Qualifications

• 8+ years of development and debugging of J2EE RESTful web services and web apps.
• Strong database experience with Oracle and SQL scripting.
• Proficient in Spring frameworks including Spring Boot.
• Experience with Maven for builds and dependency management.
• JUnit/Mockito used for unit testing.
• Experience with application servers such as JBoss or Tomcat.
• Git for version control.

Skills

Java/J2EE development

RESTful Web Services

Spring Framework

Spring Boot

Unit testing (JUnit/Mockito)

Maven

Git

J2EE concepts

Tools

Oracle DB

SQL scripting

Apache Tomcat/JBoss

Job description

Senior Java Developer

O’Fallon MO (Day One Onsite)

Essential Technical Skills

• 8+ years Development and debugging of J2EE RESTful Web Services and Web Applications
• Strong database experience (Oracle, SQL scripting)
• Spring Framework, including Spring Boot
• Maven for build and dependency management
• Unit testing using JUnit and Mockito
• Application servers: JBoss and/or Apache Tomcat
• Version control using Git

Desirable Skills

• Experience with containerized environments (Kubernetes, OpenShift, Cloud Foundry)
• Integration frameworks such as Apache Camel or Spring Integration
• Experience with monitoring service performance
• Frontend exposure to Angular 2+ or modern SPA frameworks such as React + Redux
• Knowledge of HTML5, ES5/ES6, TypeScript, SASS, and CSS3