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Sr. Mainframe developer to support and maintain systems(z/OS, IDMS related system and utilities, COBOL, ADS/o, and JCL) for a Government client

Toronto, ON
  • Number of positions available : 1

  • To be discussed
  • Contract job

  • Starting date : 1 position to fill as soon as possible

Our client is looking for a Sr. Mainframe developer to support and maintain systems(z/OS, IDMS related system and utilities, COBOL, ADS/o, and JCL) for a Government client.


Overview:

You are a highly skilled Senior Mainframe Developer. The ideal candidate will play a critical role in maintaining, enhancing, and supporting Mainframe systems to meet evolving business needs. This position requires an expert in z/OS, IDMS related system and utilities, COBOL, ADS/o, and JCL. They must also possess a strong ability to collaborate with cross-functional teams to deliver high-quality solutions and analysis of Mainframe systems.


Must Have's:

  • 8+ years of experience in mainframe application development and maintenance
  • 6+ years with z/OS, IDMS related system and utilities, COBOL, ADS/o, and JCL
  • 6+ years of experience in mainframe IDMS development and maintenance
  • Experience with IDMS replication tool Experience in database management with OCF, SCHEMA, SSC
  • Proven track record in debugging, performance tuning, and problem resolution in mainframe environments
  • Experience mainframe emulators such as Quick3270 and TN3270 Plus
  • Strong knowledge of batch and online processing


Key Responsibilities:

System Development, Maintenance & Problem Resolution:

  • Analyze business requirements and translate them into robust and mainframe application designs
  • Develop, enhance, and maintain mainframe programs using in z/OS, IDMS, COBOL, ADS/o, and JCL to ensure functionality aligns with business objectives
  • Perform comprehensive testing to validate solutions before deployment
  • Further develop the Mainframe application to implement enhancements and resolve issues as per business requirements
  • Troubleshoot production issues by analyzing logs, debugging code, and resolving errors to ensure minimal downtime
  • Provide root cause analysis for recurring issues and implement permanent solutions to prevent future disruptions
  • Collaborate with other IT teams to resolve complex cross-platform integration problems.

Mainframe Database Management

  • Design, implement, and maintain IDMS database structures to support application development and business requirements
  • Monitor Mainframe performance, conduct capacity planning and resolution to ensure ongoing sustainability
  • Coordinate with key database administrators and stakeholders to ensure proper backup, recovery, and data security procedures are followed and executed.

Documentation, Integration & Collaboration:

  • Collaborate with technical enterprise and modernization teams to integrate or document mainframe systems related to batch jobs, APIs, shared drives, or mainframe application functionality
  • Prepare and maintain detailed technical documentation, including program specifications, user guides, system workflows, and architectural diagrams
  • Work closely with business analysts to understand end-user requirements and translate them into technical specifications
  • Act as a liaison between the mainframe team and other IT teams to facilitate seamless cross-platform development and support
  • Ensure all system changes and enhancements are documented and approved according to organizational protocols
  • Engage with business stakeholders to provide technical insights, explain system functionalities, and recommend solutions to business challenges
  • Act as a subject matter expert (SME) for mainframe systems during audits, technical discussions, and strategy meetings


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Requirements

Level of education

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Work experience (years)

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Written languages

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Spoken languages

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