Staff Systems Mainframe Engineer (Remote)

The Home Depot•TEXAS - VIRTUAL - TX01, TX

2d•$90,000 - $180,000•Remote

About The Position

The Staff Systems Mainframe Engineer is responsible for leading a team of engineers designing, building, and supporting The Home Depot's technical infrastructure of hardware and system software that drives the success of Home Depot and our customers. This is a senior z/OS mainframe engineer role responsible for the reliability, performance, and security of our enterprise mainframe environment. This role backfills critical expertise lost to recent retirements and eliminates single-person dependencies across Parallel Sysplex, scheduling and automation, networking, security, and diagnostics. The ideal candidate is a broad z/OS generalist who installs, configures, tunes, and maintains z/OS and ISV products, operates independently across multiple platforms, and actively cross-trains the team to reduce single-point-of-failure risk.

Requirements

Must be eighteen years of age or older.
Must be legally permitted to work in the United States.
8+ years supporting production enterprise z/OS mainframe infrastructure.
Core z/OS systems programming: base control program, JES2/JES3, JCL, IPL, JES2 commands, and batch management.
Software installation & maintenance: hands-on experience with SMP/E for product installation and maintenance.
Hardware: z/Architecture hardware experience across z13 / z14 / z15 / z16.
Parallel Sysplex / High Availability: Sysplex Distributor, Coupling Facility, GRS (Global Resource Serialization), and Workload Manager (WLM).
I/O configuration: HCD / HCM administration of IODF / IOCDS / IOCP.
Workload automation & scheduling: CA-7 / CA-11, automated operations tooling (AutoOps and/or OPS/MVS), and batch optimization (ThruPut Manager or equivalent).
Extensive Mainframe networking: TCP/IP (ports, devices, VIPA, SMTP), VTAM, NFS, and SAN (FCIP) / Fibre Channel / FICON connectivity.
Experience in security administration: RACF and/or ACF2 including digital certificates and keyrings, plus authentication and data-protection tooling (Vanguard, Imperva, zSecure, ICSF cryptography).
Performance, capacity & monitoring: RMF/SMF analysis, plus ISV monitoring tools (OMEGAMON and/or MAINVIEW).
Scripting & customization: REXX, CLIST, system utilities, and exit routines.
Modern management: zOSMF (z/OS Management Facility).
Demonstrated ability to document platforms and cross-train peers to reduce single-person dependencies.
Diagnostics / problem determination: Debug Tool for z/OS, Fault Analyzer, IPCS/GTF.
Output management: Deliver, View, and spool/print operations.
Storage / data-copy: BCV4 (ESAI) or comparable replication/copy tooling.
Virtualization: z/VM operating system exposure.
DB2 for z/OS: administration, DB2 utilities / IBM Admin Tool, DB2 Connect, replication (DPROPR), and SQL / SPUFI / QMF.
DB2 specialty tooling (Broadcom / Platinum): Insight for DB2, RC tools (RC/Migrator, RC/Compare), Log Analyzer, Subsystem Analyzer, Plan Analyzer.
Middleware: MQ Series / IBM MQ support.
Modernization / configuration management: Ansible, Zowe, Python
The knowledge, skills and abilities typically acquired through the completion of a bachelor's degree program or equivalent degree in a field of study related to the job.

Nice To Haves

No additional education
No additional years of experience
None

Responsibilities

Leads configuration, debugging, and support for information technology solutions
Leads field and corporate rollouts of technology
Leads the stand up of necessary system software, hardware, and equipment (physical or virtual) to meet changing infrastructure needs
Creates and optimizes specifications for technology solutions
Produces and manages purchase requests for hardware and software
Leads development of test suites (functional, destructive, etc) to enable successful rapid deployment of infrastructure as code to production
Keeps abreast of innovations and industry trends as well as changes to internal systems and determines how they impacts tools, training, and support necessary to keep systems up, running, and secure
Participates in and contributes to learning activities around modern systems engineering core practices (communities of practice)
Proactively views articles, tutorials, and videos to learn about new technologies and best practices being used within other technology organizations
Researches and analyzes business trends and behavioral data to identify strategic opportunities for improvements and new initiatives
Leads the evaluation, development, and recommendation of specific strategic technology to provide cost-effective solutions that meet THD requirements
Researches and designs best fit infrastructure, network, database, cloud, AI, and security architectures for products
Proactively creates and maintains infrastructure as code and AI models for continuous improvement
Participates in strategic project planning and management across multiple efforts
Develops formal training courses
Collaborates with product and project teams to understand needs and enable them with infrastructure
Supports technology architecture design review efforts for project and product teams
Leverages tooling and custom applications to monitor the operational status of applications, infrastructure, networks, databases, and security; optimizes and tunes performance as appropriate
Drives root cause analysis, debugging, support, and post-mortem analysis for security incidents and service interruptions
Maintains, upgrades, and supports existing systems and infrastructure to ensure operational stability
Acts as a vendor liaison, owning resourcing, issue management, and documentation
Leads the production of in-house documentation around solutions
Provides application support for software running in production
Acts as a mentor to more junior Systems Engineers
Drives converting KB articles into AI models
Drives changes to analytic models used to analyze performance