Application Systems Java Developer

DataStaff, Inc . is in need of an Application Systems Java Developer for a long-term contract opportunity with one of our direct clients located in Raleigh, NC *This position is hybrid. Job Description: Our client is seeking a versatile Application Systems Java Developer to develop, enhance, and maintain enterprise applications, backend services, automation tools, and legacy system integrations. This role requires strong problem-solving skills, full-stack development capabilities, and an ability to work across modern and legacy technologies. Key Responsibilities: Develop and maintain backend applications and services using Java, Python, and Perl Build RESTful APIs, microservices, and integration points with internal and external systems Modernize and refactor existing Perl-based or legacy applications into modern architectures Create automation scripts, system tools, and scheduled jobs to support IT operations Write clean, efficient, and scalable code following best practices and coding standards Design and implement SQL queries, stored procedures, and data-processing workflows Participate in architecture discussions, technical design sessions, and sprint planning Debug and resolve complex issues across multiple languages and platforms Deploy applications to cloud or on-premise environments (Azure, AWS, GCP, Linux/Unix) Collaborate with cross-functional teams to gather requirements and deliver technical solutions Maintain documentation for systems, integrations, and processes Knowledge and Experience: Proficiency in Java (Spring Boot, Maven) Experience with Git/Subversion, Linux/Unix environments, and version-controlled development Strong problem-solving and debugging skills across languages and environments Experience with version control (Git/Subversion) and CI/CD pipelines Required Skills: 7 Years - Proficiency in Java, Python 7 Years - Solid understanding of SOAP/REST APIs, backend architecture, and microservices 7 Years - Strong SQL skills and experience working with relational databases (SQL Server, PostgreSQL, Oracle, MySQL, Ingres) 5 Years - Senior-level experience writing optimized SQL queries and analyzing existing SQL queries for performance improvements Desired Skills: 5 Years - Familiarity with legacy system migration projects 3 Years - Hands-on experience with Perl for scripting, system utilities, or legacy app maintenance 3 Years - Experience with cloud platforms (AWS, Azure, GCP) 3 Years - Experience with ETL, data pipelines, or batch processing This position is available as a corp-to-corp or W2 position with a competitive benefits package . DataStaff offers medical, dental, and vision coverage options as well as paid vacation, sick, and holiday leave. As many of our opportunities are long-term, we also have a 401k program available for employees after 6 months.