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Senior Mainframe Developer

Raas Infotek LLCTexas City, TX🇺🇸United StatesPosted Oct 23, 2026

Quick overview

SeniorityMid Senior
Work modeHybrid
LocationTexas City, TX, United States
PostedYesterday
SQLScrumCOBOLAgile

Job description

Job Title: Senior Mainframe Developer

Experience: 10+ Years
Job Type: W2 Contract

Job Description

We are looking for an experienced Senior Mainframe Developer with 10+ years of experience in designing, developing, enhancing, and maintaining mainframe applications. The ideal candidate should have strong expertise in COBOL, JCL, DB2, CICS, and mainframe batch processing, along with experience in production support and application troubleshooting.

Key Responsibilities

  • Design, develop, test, and maintain mainframe applications using COBOL, JCL, DB2, and CICS.

  • Develop and optimize batch jobs, online transactions, and application programs.

  • Write and maintain SQL queries, stored procedures, and DB2 database components.

  • Analyze business requirements and translate them into technical solutions.

  • Perform application debugging, performance tuning, root cause analysis, and defect resolution.

  • Support production environments, batch processing, incident management, and job scheduling.

  • Collaborate with business analysts, QA teams, architects, and other developers.

  • Participate in code reviews, unit testing, integration testing, and deployment activities.

  • Maintain technical documentation and follow coding standards and development best practices.

  • Support application modernization, system enhancements, and legacy migration initiatives.

Required Skills

  • 10+ years of experience in mainframe application development.

  • Strong hands-on experience with COBOL, JCL, DB2, and CICS.

  • Experience with VSAM, TSO/ISPF, and mainframe utilities.

  • Strong knowledge of SQL, batch processing, and online transaction processing.

  • Experience with mainframe debugging, performance optimization, and production support.

  • Familiarity with scheduling tools such as Control-M or CA7.

  • Experience with source control and change management tools such as Endevor or Changeman.

  • Strong analytical, problem-solving, and communication skills.

  • Ability to work independently and collaborate within a team.

Preferred Qualifications

  • Experience in banking, financial services, insurance, or other enterprise environments.

  • Knowledge of mainframe system integration and legacy modernization.

  • Experience working in Agile/Scrum environments.

  • Bachelor's degree in Computer Science, Information Technology, or a related field is preferred.

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