Mainframe AS400 Developer

Prophecy Technologies

$90K — $120K *
Plano, TX 75025In-Person
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelors in Computer Science or related field
  • 5 years of experience in software development and support
  • Strong hands-on experience with mainframe technologies
  • Proficiency in COBOL, JCL, DB2, and VSAM
  • Knowledge of batch processing, job scheduling, and file transfer processes
  • Strong troubleshooting and problem-solving skills
  • Good communication and teamwork abilities

Responsibilities

  • Develop, enhance, and maintain applications on mainframe and AS400 environments
  • Write and support programs using COBOL, JCL, DB2, CL, RPG, and related tools
  • Analyze business requirements and translate them into technical solutions
  • Perform debugging, testing, and provide production support for existing systems
  • Work with batch jobs, file processing, and data integration processes
  • Collaborate with business analysts, testers, and infrastructure teams
  • Support system upgrades, performance tuning, and incident resolution
  • Document technical designs and support procedures

Benefits

  • Collaborative work environment with cross-functional teams
  • Opportunities for personal and professional development
  • Involvement in critical business operations
  • Exposure to legacy technologies and systems management
  • Potential for long-term career stability in a unique tech stack
Full Job Description
Role Overview:

We are seeking a skilled Mainframe and AS400 Developer to design, develop, maintain, and support enterprise applications running on mainframe and IBM AS400/iSeries platforms. The ideal candidate will have strong experience in COBOL, JCL, DB2, CL, RPG, and related legacy technologies, along with the ability to troubleshoot production issues and support business-critical systems.

Key Responsibilities:
  • Develop, enhance, and maintain applications on mainframe and AS400 (preferred) environments.
  • Write and support programs using COBOL, JCL, DB2, CL, RPG, and related tools.
  • Analyze business requirements and translate them into technical solutions.
  • Perform debugging, testing, and production support for existing systems.
  • Work with batch jobs, file processing, and data integration processes.
  • Collaborate with business analysts, testers, and infrastructure teams.
  • Support system upgrades, performance tuning, and incident resolution.
  • Document technical designs, code changes, and support procedures.

Required Skills:
  • Strong hands-on experience with mainframe technologies.
  • Proficiency in COBOL, JCL, DB2, and VSAM.
  • Knowledge of batch processing, job scheduling, and file transfer processes.
  • Strong troubleshooting and problem-solving skills.
  • Ability to work in production support and development environments.
  • Good communication and teamwork skills.

Qualifications:
  • Bachelors in Computer Science or other related field
  • 5 years of experience

Preferred Skills:
  • Experience with IBM AS400/iSeries technologies preferred.

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