Senior Java Full Stack Developer
Job in
Holyoke, Hampden County, Massachusetts, 01040, USA
Listed on 2026-07-23
Listing for:
Delphi-US, LLC - Peacemakers in the Talent War
Full Time
position Listed on 2026-07-23
Job specializations:
-
Software Development
Java Developer, Backend Developer, Full Stack Developer, SQL Developer
Job Description & How to Apply Below
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.
- 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.
- 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.
Position Requirements
10+ Years
work experience
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