Senior Mainframe Software Engineer - Global Supply Chain

Job Description

Work Arrangement:

This role is categorized as hybrid. This means the successful candidate is expected to report to Austin, TX, Roswell, GA, or Warren, MI three times per week, at minimum.

The Role:

The Senior “Mainframe & Java” Software Developer will take part of a major mainframe modernization at GM. The job provides an exciting opportunity to work in a fast faced environment utilizing a modern development toolkit with the introduction of Dev Ops tools and practices for the GM Mainframe.  The ideal candidate will bring a mixed experience in mainframe, java, web, and integration development and be capable of designing multi-application cross-functional solutions.  This individual will lead or co-lead our modernization initiatives which consist of fortifying legacy applications or building new applications while developing plans to migrate key business functionality to the cloud or on-premises virtual infrastructure. 

In this role, you are responsible for developing or enhancing software applications using sound, repeatable, systematic, and quantifiable approach to application development on a foundation of industry best practices and in accordance with GM's software development/project methodology (Agile mostly). The Software Developer will contribute to the definition of technical features and stories and will work hands-on writing code based on requirements and system specifications (features and user stories). Development activities will include updating existing software and/or developing new programs to address a specific need or solve a particular business or technical problem. 

Additionally, our organization is undergoing a transformation to transform application code developed in traditional mainframe languages (PL1, Cobol) to JAVA running on Z Systems using assistance from AI LLM solutions (Generative AI). You will have exposure to this transformation and lead related activities.

What You'll Do (Responsibilities):

• Estimation, Analysis, Design, Design reviews, Coding, Code reviews, unit testing in small increments of work.
• Troubleshooting (root cause analysis) and debugging applications in different programming languages.
• Software testing and quality assurance with focus on automation at all layers (Unit, System and Integration, UI).
• Document software code and ensure that technical documentation i.e. configuration guides, install guides, system designs, others meet requirements.
• Develop and Integrate software with existing systems.
• Convert application code developed in traditional mainframe languages to JAVA and modern JAVA frameworks using Code Assistance tools and generative AI, leading development, testing, and deployment activities.
• Maintain standards compliance.
• Perform Level 3 / on-call support for GPSC mainframe or JAVA applications currently running in Production.
• Estimate, and design small increments of work for other developers.
• Mentor less experienced team members and apprentices.
• Report status of assigned software development and/or maintenance tasks consistently following the specified software development methodology.
• Promote improvements in lean software engineering practices such as test-driven development, continuous integration, and continuous delivery.
• Communicate effectively.

Additional Job Description

What You'll Need (Required Qualifications):

• Bachelors degree in Computer Science, Engineering, Mathematics, or technical discipline. Equivalent work experience will be considered in lieu of degree
• 7+ years of experience as a developer
• Languages: Java, PL/1, Cobol, and JCL
• IMS DC/TM for transactional processing
• ISPF Panels, CLIST, Skeletons, REXX
• Database: IMS & DB2, Oracle & PostgreSQL
• Scheduling tools: IWS
• Source Code and deployment Management: Azure DevOps, IBM DBB, GitHub, GitActions
• Development IDE: IBM IDz / RDz, IntelliJ, VSCode, or other Eclipse based
• Experience with modern mainframe toolsets to help with discovery, profiling, and migration automation
• CI/CD experience in defining and managing the build, deployment, and release pipelines

What Will Give You A Competitive Edge (Preferred Qualifications)

• Hands-on experience using JAVA, REST, microservices, and containers (Pivotal Cloud Foundry or Docker/Kubernetes) and integrating mainframe and midrange applications
• Solid understanding of midrange platforms and frameworks such as SpringBoot and Spring.
• Agile, SCRUM, KANBAN methodologies
• zDevOps: IBM Developer for Z Systems, ADO, GIT, IBM DBB
• IBM tools: ITOM, RACF, Connect-Direct,