Sr. Mainframe and Rest API Developer

Description of Work: • Z/OS Mainframe development, JCL, COBOL, DB2, CICS, Control-M, VSAM, SQL, relational databases, Java, RESTful, Spring Boot, JSON, XML, SOAP, SQL, Git, AWS, and TDD and familiarity with Angular • Architect, design, code, and implement applications using software engineering best practices in the latest technologies. • Develop JCL and software code using customer defined standards and software engineering best practices • Analyze root causes for batch job failures, take appropriate corrective steps to resolve issues in a timely fashion, and share findings with the team • Evaluate impacts of database schema changes on existing software components • Develop new and update existing REST APIs using the Spring Framework (Boot, Cloud, Security, Data). • Perform source code repository management and deployment using DevOps (Jenkins, Nexus, Docker, SonarQube, UrbanCode). • Perform API testing using Swagger UI and Ready API. • Investigate and repair application defects related to business logic, middleware, or database (DB2). • Perform log analysis and resolution using Splunk, Dynatrace • Provide software expertise in one or more of these areas: Java application integration, Java enterprise services, service-oriented architectures (SOA), security, and business process management/business rules processing. • Brief management, customer, team, or vendors using written or oral skills at appropriate technical level for audience • Provide guidance/support to other junior/mid-level developers. • Impact functional strategy by developing new solutions, processes, standards, or operational plans that position Leidos competitively in the marketplace. • All other duties as assigned or directed.