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60 Real Careers Jobs Hiring Near You

Colt Tree Service

Groundsman

Camdenton, MO · On-site

$19.68/hr

Profit Sharing If you are looking for more than just a job and a check, join the team the offers real careers and advancement opportunities. So, if you like to work hard, enjoy the outdoors and have ...

Apex Manufacturing

Extraction Technician

Los Angeles, CA · On-site

$20 - $25/hr

Company Description Apex Manufacturing is a fast‐growing, quality‐driven manufacturing and extraction company where people come to build real careers--not just punch a clock. We focus on clean ...

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Infographic showing various job openings at Real Careers in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 67% Physical, and 33% Hybrid job distribution.

z/OS Mainframe Performance Engineer - Tampa

Real Careers

Tampa, FL • Hybrid

$132K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 14 days ago

Job description

z/OS Mainframe Performance Engineer - Tampa

Tampa, FL 33603/ Dallas, TX 75203


Flexible/Hybrid Work Arrangements– Onsite in the office on Tuesday & Wednesday every week but can change.

Must be a US Citizen or Green Card holder.

  • The Systems Engineering family is responsible for the entire technical effort to evolve and verify solutions that satisfy client needs. The primary focus is centered on reducing risk and improving the efficiency, performance, stability, security, and quality of all systems and platforms.
  • The Principal Platform Engineer is a member of the Mainframe Performance team and is a highly technical position responsible for the overall performance of the Mainframe environment, including balancing resources across multiple CECs and analyzing and reporting on performance and tuning metrics. This position requires proven leadership skills to coordinate and lead initiatives regarding Performance & Tuning and effectively coordinate with various IT groups and Product Managers.

RESPONSIBILITIES:

  • z/OS real time performance diagnostics and L2 production support in a large mainframe environment
  • Identification of performance bottlenecks and their alleviation through z/OS components and application tuning
  • Proactive, exceptions driven component performance management & optimization
  • CPU, Memory, I/O, Network, CF, etc.
  • Synergy with other performance SME - DB, CICS, Network, Storage, etc
  • Sysplex analysis and maintenance
  • LPAR configurations design, and tuning
  • Hiperdispatch/IRD, capping
  • ThruPut Manager & Work Load Manager policy design
  • Performance test configuration, analysis and support
  • Improving mainframe cost effectiveness
  • Batch workloads critical path prioritization
  • Real-time performance monitoring
  • Operations staff training in L1 performance diagnostics
  • Provide consultative services to IT staffs on performance issues.
  • Mitigates risk by following established procedures and monitoring controls, spotting key errors and demonstrating strong ethical behavior.
  • Serves as a trusted coach or mentor within the organization.
  • Communicates openly keeping everyone across the organization informed.

Pay and Benefits:

Competitive compensation, including base pay and annual incentive

Comprehensive health and life insurance and well-being benefits, based on location

Retirement benefits

Paid Time Off and other leave of absence

Flexible/Hybrid Work Arrangements– Onsite in the office on Tuesday & Wednesday every week but can change.

Required Knowledge, Skills, and Abilities: (Submission Summary):

  1. Minimum of 8 years of related experience
  2. Bachelor's degree preferred or equivalent experience
  3. Strong teamwork skills
  4. Expertise in z/OS performance diagnostics, problem resolution and proactive performance management
  5. Expertise with BMC Mainview
  6. Expertise in z/OS Workload Manager Policy design in a large Sysplex environment
  7. Expertise in ThruPut Manager
  8. Intermediate to strong SAS coding skills including SAS macros and SAS/GRAPH. Working knowledge of MICS and SAS/MXG
  9. Working knowledge of z/OS components – ASM, RSM, IOS, HSM, JES2, etc.
  10. Understanding of the functionality and performance aspects of z/OS secondary subsystems – DB2, CICS, MQ - preferred
  11. Must be a US Citizen or Green Card holder.
Employment Type: FULL_TIME

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