Key Responsibilities:

• Maintain and enhance existing Java-based web applications and backend services
• Troubleshoot and resolve production issues with a focus on performance and reliability
• Optimize system performance and improve scalability of legacy components
• Develop and maintain features across:
• Spring MVC controllers and RESTful APIs
• Data access layers (MyBatis, PostgreSQL)
• Legacy UI components (JSP, JSTL, jQuery)
• Manage builds and deployments using Ant/Ivy and WAR packaging on Tomcat
• Support and enhance application security, including authentication and authorization mechanisms (JWT, 2FA, role-based access)
• Collaborate with cross-functional teams to identify and implement modernization opportunities
• Refactor legacy code to improve maintainability and testability

Required Qualifications:

• Strong experience with Java 8
• Experience managing PostgreSQL environments (configuration, optimization, and maintenance) beyond basic schema design
• Solid knowledge of:
• Spring MVC and Spring Security
• Servlets, JSP, and JSTL
• RESTful APIs and JSON
• Experience working with:
• Apache Tomcat
• Ant and Ivy build tools
• PostgreSQL databases
• MyBatis ORM framework
• Proven ability to debug complex issues in legacy systems
• Experience supporting production environments

Preferred Qualifications:

• Experience with security frameworks and tools (JWT, BCrypt, 2FA)
• Familiarity with:
• WebSockets / STOMP
• LDAP integration
• Messaging frameworks (ActiveMQ, Apache Camel)
• jQuery / jQuery UI
• Hibernate
• SOAP / JAX-WS services
• Experience with legacy system refactoring and modernization
• Knowledge of rules engines such as Drools

Nice-to-Have (Secondary Backend Experience in C/C++):

• Experience with C/C++ backend systems, including:
• POSIX threading, signals, and process lifecycle management
• Socket and network programming
• Event-driven architectures (e.g., reactor patterns, Poco libraries)
• Experience building native applications using Make on Linux
• Integration with XML/SOAP services (e.g., Axis2/C)
• Familiarity with native libraries for OCR/PDF processing
• Performance tuning and memory debugging in long-running services

What We’re Looking For:

• A problem-solver who thrives in complex, legacy environments
• Strong debugging and troubleshooting skills
• A pragmatic engineer who can balance maintenance with modernization
• Someone comfortable working across the full stack of a traditional Java web application

Benefits:

• Competitive salary
• Health, dental, and vision insurance
• Paid time off
• Flexible work schedule

About Us:

Gruntworx is a Drake Enterprises, LTD company based out of Franklin, NC with locations in Virginia Beach, VA and Hampton, NH . We are customer-centric, offering software products and services to professional tax-preparers. We offer unique opportunities throughout our organizations and our goal is to be the employer of choice and our customers first choice.