Mainframe Infrastructure Engineer

The Mainframe Engineering team in Enterprise Operations & Technology is accountable for providing a stable, secure, resilient and risk managed platform for our business teams to develop, deploy and integrate applications on Mainframe. Client leverages a managed service provider to enable "Mainframe Platform as a Service" yet provides governance and oversight on the contractual engagements with the supplier and functions as an integrator between the supplier and internal Freddie Mac teams including the business partners. Freddie Mac is simultaneously executing a 3 Year roadmap to migrate off Mainframe applications to cloud, to sunset Mainframe in a safe and data retention compliant manner., * Technical Lead for Mainframe Platform (z/OS, Dell Storage, IMS, DB2, RACF, CA JobTrac) to govern operations, changes and sustainability upgrade projects.

• Interface between Freddie Mac teams and Managed Service Supplier for issue resolution & change coordination.
• Accountable for governance and oversight on contractual SLAs and key metrics.
• Perform technical review, validation, coordination and compliance assurance for Vendor Managed and business requested Mainframe infrastructure changes (maintenance and sustainability upgrades)
• Execute risk management controls, Baseline Security Compliance activities and audit support, involving technical review and execution of z/OS, IMS, DB2 and zSecure subsystems, involving RACF security.
• Work as client side - technical SME for Mainframe infrastructure subsystems, to hold Managed Service Provider accountable to deliver on the changes and contracted services
• Requires detailed knowledge of z/OS, IMS and DB2 subsystems and RACF security services
• Flexibility for unscheduled engagement to lead & drive major incident resolutions & planned after-hour releases.
• Perform root cause analysis with corrective and preventive measures.
• Communicates and Influences effectively.

Your Impact:

• Identifies technical risks to planned system upgrades and works toward implementing mitigations to those risks.
• Reviews completion and implementation of system upgrades and/or enhancements and makes recommendations to management on opportunities for improvement.
• Identifies, analyzes, and resolves system problems., * Purchase any product, service, or gift cards from us or for us as part of an application, interview, or selection process.
• Provide sensitive financial information such as credit card numbers or banking information. Successfully placed or hired candidates would only be asked for banking details after accepting an offer from us during our official onboarding processes as part of payroll setup.

• Must have 10+ years as a Mainframe Programmer with hands on technical expertise supporting Z/OS environments.
• Candidate should have strong mainframe programming and system experience, with mortgage/financial service experience preferred but not required., * 5+ years of hands on experience in mainframe infrastructure engineering
• Knowledge of z/OS architectures and z/OS internals
• Knowledge of the zSecure tool and its is own language, Carla, for customization a plus
• Knowledge of mainframe security and RACF
• Knowledge of mainframe security related to supporting audits & findings - in reference to BSCs, key managements a plus
• Knowledge of IBM Mainframe System - JCL, CICS, SQL, z/OS, DB2, IMS, VSAM, XML, TSO/ISPF, zconnect

Keys to Success in this Role:

• Proactive and ability to think creatively and execute in a manner that respects and meets appropriate internal controls.
• Very strong attention to detail, ability to execute process, and follow through on tasks, with significant organizational, project and program management skills.
• Excellent communications skills, including comfort interacting with internal management and external stakeholders.

Pay Range: $70-80/hr. The specific compensation for this position will be determined by several factors, including the scope, complexity, and location of the role, as well as the cost of labor in the market; the skills, education, training, credentials, and experience of the candidate; and other conditions of employment. Our full-time consultants have access to benefits, including medical, dental, vision, and 401K contributions, as well as PTO, sick leave, and other benefits mandated by applicable state or localities where you reside or work. If you receive a suspicious message, email, or phone call claiming to be from PTR Global, do not respond or click on any links. Instead, contact us directly at +1 . To report any concerns, please email us at

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