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Sr. Systems Engineer - Mainframe

Posted October 26, 2020

Marriott International
Bethesda, MD

About This Job


This position is responsible for the primary 24x7x365 support, maintenance and system availability of the z/TPF mainframe platform which runs business critical Production, Test and Development application systems within this environment. Responsible for line management, task management, technical direction and overall Service Level accountabilities for the z/TPF mainframe infrastructure. The role participates in efforts researching, designing, documenting and implementing infrastructure components that are standards based, high performance, highly available and secure delivering the required business functionality. 


Education and Experience


·       Undergraduate degree or equivalent experience/certification

·       7+ years’ overall experience in information technology

·       3+ years’ overall experience in z/TPF on Z mainframe technologies.

·       3+ years performing all aspects of zTPF Coverage work


  • Graduate degree
  • Technical certifications
  • Experience with zVM and Linux on Z mainframe technologies
  • Technical leadership experience in a sourced environment
  • Mainframe hardware configuration and network management
  • Performance monitoring and tuning
  • Assembler and REXX programming.

·       Experience in 24x7x365 operational support of mainframe systems


  • Provide input, design, development and implementation strategies and initiatives for the future maintenance of a world class z/TPF System to maintain Marriott International’s competitive advantage.
  • Responsible for technical software product installation, maintenance and performance tuning.
  • Provides technical leadership and mentoring for other members of the mainframe services support team.
  • Supports the technical architects in performing research, analysis and design of technical solutions to meet current and future user requirements. 
  • Supports the capacity planning analysis and reporting on computing systems for procurement planning and performance monitoring.
  • Resolves and makes decisions on more complex, non-routine service requests. 
  • Understand the business and customer needs to introduce solutions that grow the bottom line and/or speed time to market.
  • Provide documents with a focus on how infrastructure services will be leveraged in the solution architecture.
  • Participate in the evaluation and selection of infrastructure services products.
  • Work closely with the enterprise architect to support alignment of plans with what is being delivered.
  • Support governance based on best practices and ensure proper alignment to projects and major initiatives.
  • Lead analysis of the current environment to detect critical deficiencies and recommend solutions for improvement.
  • Lead analysis of technology industry and market trends to determine their potential impact on the infrastructure architecture.
  • Support Solution and Domain Architecture by providing current environment status in terms of technology, software and infrastructure for projects in the delivery life cycle.
  • Utilize capability modeling to align systems strategy and planning with business strategy and goals.
  • Consult with project teams to identify when it is necessary to modify infrastructure services to accommodate project needs.
  • Consult with architecture teams to identify when it is necessary to modify the technical architecture to accommodate infrastructure needs.
  • Oversee the documentation of all architecture design and analysis work.
  • Define, design, implement and promote standard configuration and change management, processes and practices.
Technical Leadership
  • Trains and/or mentors other team members, and peers as appropriate
  • Provides financial input on department or project budgets, capital expenditures or other cost/resource estimates as requested
  • Identifies opportunities to enhance the service delivery processes
Delivering Technology
  • Performs more complex quantitative and qualitative analyses for service delivery processes and projects
  • Supports existing systems and large projects in a minimum of one environment
  • Facilitates achievement of expected deliverables and obligations of Services Providers
  • Validates completeness of requirements prior to Service Provider solutioning
  • Creates, updates and maintains current state documentation of designs, processes and interfaces utilized by mainframe systems
  • Through the service provider, plans and coordinates complex implementation overseeing quality control of systems functional design, usability, functionality, and implementation
  • Advises support desk on change management as it relates to support and training of new systems and processes
  • Ensures proper coordination with appropriate IT and vendor relations teams
  • Provides consultation for routine and complex systems development
  • Ensures early warning to the business stakeholder executives regarding degraded or missed service levels
IT Governance
  • Follows all defined IT standards and processes (i.e. IT Governance, SM&G, Architecture, etc.), and provides input for improvements to the appropriate process owners as needed
  • Maintains a proper balance between business and operational risk
  • Follows the defined project management standards and processes
Service Provider Management
  • Validates that Service Providers develop and manage respective aspects of a project plan, including schedules, deliverables, and appropriate metrics.
  • Makes short term plans for the team to effectively utilize resources
  • Monitors Service Provider outcomes
  • Reviews estimates of work effort for client project provided by Service Providers for accuracy
  • Facilitates timely resolution of service delivery problems and minimizes the impact to clients
Marriott International is an equal opportunity employer committed to hiring a diverse workforce and sustaining an inclusive culture. Marriott International does not discriminate on the basis of disability, veteran status or any other basis protected under federal, state or local laws.

About this Employer

Marriott International

10400 Fernwood Rd.
Bethesda, MD 20817

(301) 380-3000

Corporate Office

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It means feeling the power of belonging. We feel it each and every day. It comes from being recognized. It comes from knowing Marriott International sees talent in each of us. And, it comes from working together, as a family, to make our guests feel as much at home as we do. It's why so many of our associates come for a job, but stay for a career.


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