Full Stack Java Developer

The ideal candidate will help to replace legacy JSP and Taglib-based views with a modern, responsive React, TypeScript, and Node.js stack Build and maintain end-to-end features, ensuring seamless integration between modern React components and Spring-based RESTful APIs Help with leading the technical transition of legacy Spring MVC/Hibernate applications (JDK 7) to modern Java 21 standards Manage and optimize relational databases (PostgreSQL/MySQL), ensuring data integrity and performance during the transition from legacy Hibernate mappings to modern ORM practices Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act". Quadrant, Inc. is an equal opportunity and affirmative action employer. Quadrant is committed to administering all employment and personnel actions on the basis of merit and free of discrimination based on race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, or status as an individual with a disability. Consistent with this commitment, we are dedicated to the employment and advancement of qualified minorities, women, individuals with disabilities, protected veterans, persons of all ethnic backgrounds and religions according to their abilities.

Eligible for standard Public Trust clearance 10+ years of progressive full stack development experience Mastery of HTML5, CSS3, and Modern JavaScript (ES6+) Proven track record of building/migrating enterprise applications from the ground up Expertise in java migration stacks : JAVA 21, Spring MVC, TypeScript, Node.JS languages and React, Hibernate and Node Frameworks Strong knowledge of responsive design and cross-browser compatibility Understanding of security best practices for web applications Advanced Relational Database skills (SQL, schema design, query optimization) with PostgreSQL or MySQL Proficiency in GitHub, JIRA, Confluence, or similar Experience documenting technical requirements Excellent communication skills both written and verbal High attention to details Strong problem-solving skills and highly analytical BS Degree in related field