Senior Java Full Stack Developer

Senior Java Full Stack Developer (Contract) | Springfield, MA | Hourly Pay Range: $40-$80 Our client in the Springfield, MA area is seeking a highly skilled Senior Java Full Stack Developer to join their team on a contract basis. This role involves designing and implementing enterprise integration solutions, leveraging AWS cloud technologies, and developing scalable data pipelines to support high-volume workloads. The position offers an exciting opportunity to work on cutting‑edge projects in a hybrid remote environment. Key Responsibilities Enhance existing applications using Java 17/21 and Spring Boot to improve functionality and performance. Develop and maintain front‑end interfaces with HTML, CSS, Bootstrap, and AJAX, ensuring a seamless user experience. Interact with Oracle databases using SQL and PL/SQL to optimize data retrieval and storage processes. Design and implement data pipelines for extracting, transforming, and integrating data from multiple source systems. Deploy containerized applications on AWS ECS with Fargate, utilizing S3 for object storage and SQS for asynchronous messaging. Build and optimize database schemas with partitioning strategies for high-volume tables exceeding 10 million rows. Develop integration adapters using Apache Camel for message routing, transformation, and orchestration across messaging systems such as AMQ, JMS, and SQS. Collaborate with architects on technology evaluations, document integration designs, and mentor team members on Spring Boot and AWS best practices. Write comprehensive unit tests with JUnit and Mockito, and deploy code through Jenkins CI/CD pipelines. Interact with end users to gather requirements and translate them into technical solutions. Required Qualifications Strong proficiency in Java 17/21 and Spring MVC. Experience working with Oracle databases and SQL/PLSQL. Hands‑on experience with AWS services including ECS, S3, and SQS. Proven ability to develop front‑end components using HTML, CSS, Bootstrap, and AJAX. Experience with enterprise integration patterns using Apache Camel and messaging systems like JMS or ActiveMQ. Skilled in database schema design, partitioning, and performance optimization for high-volume data environments. Knowledge of RESTful API design and microservices architecture. Experience with Thymeleaf or similar server‑side templating engines. Familiarity with CI/CD pipelines, especially Jenkins. Ability to work independently, troubleshoot issues, and communicate effectively. Preferred Qualifications Experience with Python scripting for data processing and file manipulation. Knowledge of Spring Batch for batch processing. Prior experience in regulated environments or with legacy systems is a plus. #J-18808-Ljbffr Delphi-US, LLC - Peacemakers in the Talent War