Mainframe Performance and Capacity Engineer

About Us

Ensono is a hybrid IT services provider that sees a world in transformation. We understand the world of business has become more complex, layered, and interdependent because we’re enabling the IT infrastructure for that transformation. Our clients are some of the most innovative and forward-thinking companies in the world and we help keep their businesses thriving. With nearly 50 years of experience, we optimize and modernize IT infrastructure by amplifying the power of mainframes and mid-range servers with the agility of cloud. Check us out at

Job role

Are you an Mainframe expert with focus System Performance and Capacity? Do you speak zOS?

We’re looking for our Mainframe Environment for a System Engineer to:

propose and implement systems enhancements
monitor usage and performance, and troubleshoot mainframe system
evaluate complexity and feasibility of new or changed system configurations
work closely with the SME of Batch, Online, DB and Storage to avoid production Incidents
run, plan and create reports to observe potential bottlenecks in system performance and capacity
analyze outages and defective states, initiating and monitoring measures to remedy them

Your team

Infrastructure Core is a global organization within Group Technology Infrastructure & Security Engineering providing technology platforms to underpin our partners business applications. You will be part of the Mainframe Software Service team, which has a global footprint and works with clients and wider team members spread across the world. Together we drive consistency across business divisions and optimize operations and support costs, by providing timely, robust, cost effective solutions and products to our clients

You’ll be working in the performance and integration services tea. We provide application integration support, system performance and capacity operations services. As a Mainframe Performance and Capacity Engineer, you’ll play an important role in for the stability and performance of our mainframes. Team work is pivotal to our success, it plays a very important role. We offer flexibility in the workplace and equal opportunities to all our team members.

Mandatory Technical Skills

ideally 10 years of experience working a large and complex mainframe environment, financial sector background would be a plus
Strong experience with performance monitoring and capacity management in a multi-CEC & Sysplex environment
Strong knowledge of WLM, RMF, SMF
Experience with IBM SCRT and Reporting Systems
Advanced use of REXX, SQL and Excel
university degree computer science, management information systems or professional certifications
a committed and visionary team player with a logical mind-set (you can solve problems like nobody’s business)
excellent communicator, able to adapt style and detail to the audience
motivated, self-directed and driven
fluent in English
Mainview RMF

Shift Timing- 1:30PM to 10:30 PM.

We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to caste, colour, creed, religion, gender, gender identity, sexual orientation, age, disability, HIV status, or any other status protected by law. Candidates with disabilities who require accommodations during the recruitment process are encouraged to contact our Talent Acquisition team to place a request.

Senior Mainframe Capacity management