Senior Mainframe Developer


Website Application Development

Reference Code: 4469

Title: Senior Mainframe Developer

Company: General Motors (GM)

Duration: 26 Weeks with possibility of extension.

Location: Roswell, GA, 30076

Type: Contract

Shift: M-F

Job ID: 129244-1



  • Minimum 10 years’ experience
  • Required: PL1, JCL, DB2, IMS
  • Highly recommended: Cobol, RPP, IMS DC/TM, IDz or RDz, Cobol, Agile, Scrum or SAFe methodologies, zDevOps, Any other relational DBMS
  • Nice to have: REXX, Easytrieve, Endevor, CA7, Test Automation, IBM Tools (IWS, UCD, Connect Direct)
  • BS in computer science, engineering, math or technical discipline or equivalent combination of education and recent, relevant work experience
  • Work remotely until COVID-19 restrictions are lifted. Once restrictions are lifted, workers must be willing to sit onsite at any of the GM Innovation Centers (Austin, Atlanta, Phoenix, Warren/Detroit)


Additional Job Description:

In addition, the candidate will possess some or all of the following skills:

  • Fully qualified individual contributor who has knowledge and understanding of all aspects of function
  • Ability to operate with a high level of independent judgment and are typically responsible for implementing functional strategy, administering and coordinating programs, counseling and advising management
  • Broad technical knowledge, training and understanding combined with creative and independent thinking
  • Proficiency in many technical functions and ability to integrate across disciplines and platforms
  • Performs complex assignments requiring a wider application of principles, theories and concepts
  • Ability to interact with other senior personnel
  • Ability to lead and provide direction to a team of professionals


Major Duties/Responsibilities:

1. Estimation, Analysis, Design, Design reviews, Coding, Code reviews, unit testing in small increments of work (mainframe)

2. Troubleshooting (root cause analysis) and debugging applications in different mainframe programming languages

3. Software testing and quality assurance

4. Document software code and ensure that technical documentation i.e. configuration guides, install guides, system designs, others meet requirements

5. Develop and Integrate software with existing systems

6. Maintain standards compliance

7. Report status of assigned software development and/or maintenance tasks consistently following the specified software development methodology

8. Communicate effectively with a positive and confident attitude


Required Qualifications and Technical skills:

  • BS in computer science, engineering, math or technical discipline or equivalent combination of education and recent, relevant work experience is required
  • Languages: PL/1 (Required), Cobol (important) and JCL
  • IMS DC/TM for transactional processing
  • Database: IMS and DB2
  • Scheduling tools: IWS and/or CA7
  • IDE: IBM Developer for Z Systems
  • SCM: Endevor and/or IBM DBB
  • Solid understanding of midrange platforms


Preferred Work Schedule: M-F



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