Mainframe High Availability Engineer

Role Overview

We are seeking an experienced Mainframe High Availability Engineer to support mainframe enhancements, production stability, and high-availability operations. The ideal candidate will have strong mainframe development skills, hands-on production support experience, and expertise in root-cause analysis, change management, testing, and technical documentation.

Key Responsibilities

• Analyze, develop, review, and implement code or configuration changes for assigned mainframe enhancements and production fixes.
• Ensure changes meet established technical requirements, quality standards, and agreed acceptance criteria.
• Prepare and maintain test evidence, implementation plans, and backout procedures for every change.
• Diagnose and resolve escalated production incidents in a high-availability mainframe environment.
• Document troubleshooting activities, resolutions, escalation paths, and root-cause analysis (RCA) findings.
• Update operational runbooks and technical documentation as required.
• Link all deliverables to the assigned team work items and provide regular status updates.
• Participate in multi-party code reviews, change reviews, and knowledge-transfer sessions.
• Support reliable system operations while minimizing service disruptions and operational risks.

Required Skills & Experience

• Hands-on experience in Mainframe Development and High-Availability Environments.
• Strong production support, incident troubleshooting, and root-cause analysis skills.
• Experience delivering mainframe code enhancements, fixes, or configuration changes.
• Knowledge of change management, implementation planning, and backout procedures.
• Experience preparing test evidence and technical implementation documentation.
• Ability to work with formal acceptance criteria and structured review processes.
• Strong analytical, problem-solving, documentation, and communication skills.
• Ability to collaborate with technical teams and provide effective knowledge transfer.

Key Deliverables

• Technical analysis documents.
• Reviewed mainframe code or configuration changes.
• Test results and supporting evidence.
• Implementation and backout notes.
• Root-cause analysis reports.
• Updated operational runbooks and knowledge-transfer documentation.