Mainframe and REST API Developer

Senior Mainframe and REST API Developer
Baltimore MD Fulltime On site (HYBRID)

Description of Work:
Z/OS Mainframe development JCL COBOL DB2 CICS ControlM 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/midlevel 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.
Basic Qualifications: Minimum knowledge skills abilities needed.
Bachelors Degree in Computer Science Mathematics Engineering or a related field.
Masters or Doctorate degree may substitute for required experience
10 years of experience with Mainframe development using z/OS Mainframe development JCL COBOL DB2 CICS
ControlM and VSAM
7 years of experience with Java systems/application analysis and design
7 years of combined experience SOA/Microservice architecture/RESTful web service
4 years of combined experience with building responsive UIs with modern frontend technologies
Strong knowledge of SQL and relational databases like DB2.
Excellent experience with Spring Framework (Boot Batch Cloud Security and Data)
Excellent knowledge with Java EE Java generics and concurrent programming
Solid experience with unit testing TDD and associated technologies (Junit Mockito and Karma/Jasmine)
Basic knowledge of relational databases (PostgreSQL DB2 and Oracle) SQL and ORM technologies (JPA2 Hibernate
and Spring JDBC.
Strong experience developing unit tests using Junit using build automation tools such as Maven Jenkins and SonarQube.
Knowledge/Experience on Webmethods will be an additional advantage.
Familiarity with modern frontend build pipelines and tools.
Excellent communication and written skills
Must be able to obtain and maintain a US Public Trust clearance.
Preferred Qualifications: Candidates with these skills will be given preferential consideration.
Experience with modern development software tools and methodologies.
Experience working on Agile projects and understanding Agile terminology.
Solid knowledge with building responsive UIs with modern frontend technologies such as Angular Node Typescript
or Bootstrap
Solid knowledge of frontend technologies (HTML Modern Javascript JQuery and CSS)

Work in DevOps Environment.
Experience with Linux environments.
Selected candidate must
reside within two (2) hours of SSA Headquarters in Woodlawn MD***
Candidate must report to work onsite and work from the Leidos Woodlawn facility every Tuesday.