Senior Java Developer (Night Shift) - W2 ONLY

***Candidates MUST BE local to Reston, VA, (or) Washington, DC ***This is strictly a W2 position and a NIGHT SHIFT role after the training. ***C2C / OPT-EAD Candidates are not eligible for this role. Title: Senior Java Engineer W2 Contract, 9 Months This position is primarily remote. Candidates must be willing to work onsite in Reston, VA or Washington, DC once per month for all-hands meetings. The first one-to-two weeks will be day-shift (9am-5pm) training (onsite). Thereafter, this will be a permanent night shift . Rotating weekend shifts approximately once a month. Overview & Responsibilities: We are seeking a Java Engineer for a permanent night shift production support role with a leading healthcare services client. The ideal candidate is a strong back-end developer with a passion for troubleshooting and ensuring system stability. You will be responsible for fixing production issues during night hours and collaborating with the day-shift team. This role offers a unique opportunity to get trained on other enterprise tools (like Big Data and B2B) and gain exposure to AWS cloud environments. You will Provide production support for enterprise Java/JEE applications during the night shift. Troubleshoot, analyze, and resolve production issues in a timely manner. Collaborate with day-shift teams for knowledge transfer and issue handoff. Write efficient, clean, and reliable code for maintenance and fixes. Participate in a quarterly shift rotation that includes weekend support. Required Qualifications: Must be available for a mandatory in-person interview in Reston, VA, or Washington, D.C. Must be willing and able to work a permanent night shift. BS in computer science or equivalent degree, and 3-5 years of professional software development experience using Enterprise Java technologies 3-5 years of professional Java/JEE software development experience. Strong experience with the Spring ecosystem (Spring Boot, Spring MVC, Spring Batch, Spring Security). Experience with RESTful and SOAP Web Services. Minimum 3 years of APIM experience. Experience with production support. Experience with frameworks like Hibernate or MyBatis. Familiarity with JavaScript frameworks (Angular, React, JQuery). Excellent troubleshooting and problem-solving skills. Preferred Qualifications: AWS (Amazon Web Services) background is a significant plus. Experience with Spring Integration. Experience with Big Data platforms. Experience with security protocols (SSO, Oauth2).