Mainframe System Programmer - z/OS

MY20 EntServ Malaysia Sdn. Bhd.; Petaling Jaya; On-site; MYR 180,000 - 240,000; Full time

Job summary

DXC Technology in Malaysia is seeking a Senior Mainframe System Programmer for z/OS to maintain, install, document and customize the mainframe operating system and installed software. The role requires diagnosing system and performance problems and implementing configuration changes.

You will collaborate with z/OS administrators, coordinate vendor software maintenance, and participate in DR planning to ensure continued operational availability of critical workloads across client environments.

Qualifications

• Bachelor’s degree required.
• 10+ years of experience in this role.
• Solid z/OS installation and maintenance.
• Proficient in JCL, REXX, and HLASM.
• Experience with installation and maintenance of IBM and third-party software.

Responsibilities

• Provide technical support to clients and other clients service lines.
• Perform z/OS systems programming activities and coordinate project resources needed to complete software maintenance and installation schedules.
• Ensure software is operating at supported and optimized levels.
• Work with z/OS administrators to analyze and resolve root cause issues.
• Provide on-call support as required for products supported by the team.
• Plan, support and manage the installation and execution of infrastructure and vendor supplied software products for the mainframe environment.
• Partake in planning and establishing of best practices for the z/OS vendor product environments.
• Analyze technical system changes and improvements made to the system software in order to determine impacts related to existing systems and guarantee continued operations and availability of systems.

Skills

z/OS

JCL

REXX

HLASM

SMPE

JES

VTAM

TCP/IP

Education

Bachelor’s degree

Job description

Job Description: We are looking for Mainframe System Programmer - z/OS, the candidate will work to maintain, install, document and customize the mainframe operating system and installed software. The candidate will be required to diagnose system and performance problems, execute configuration changes, implement vendor supplied software and work on project related tasks.

Technical Delivery

Responsibilities include (but not limited to):

• Provide technical support to clients and other clients service lines.
• Perform z/OS systems programming activities and coordinate project resources needed to complete software maintenance and installation schedules.
• Ensure software is operating at supported and optimized levels.
• Work with z/OS administrators to analyze and resolve root cause issues.
• Provide on-call support as required for products supported by the team.
• Plan, support and manage the installation and execution of infrastructure and vendor supplied software products for the mainframe environment.
• Partake in planning and establishing of best practices for the z/OS vendor product environments.
• Analyze technical system changes and improvements made to the system software in order to determine impacts related to existing systems and guarantee continued operations and availability of systems.

Knowledge and skills required

• Solid z/OS Operating System installation and maintenance.
• Installing, upgrading, and maintaining any software products of IBM and 3rd party vendor products (ISVs) as per client’s request or business requirements by both SMPE and NON-SMPE method.
• Proficient in JCL coding skills, REXX and HLASM programming languages.
• Solid problem determination and resolution skills for operating system and program products with an understanding of system monitoring tools.
• Experienced in supporting multiple client mainframe workloads.
• Understanding of z/OS services structure, JES concepts, sysplex configuration, Unix System Services, Comm Server (VTAM, TCP/IP, system catalog structures, and IODF/HCD).
• Solid understanding of Disaster Recovery planning.
• Experienced administrating 3rd Party vendor print packages.

Qualifications

• Bachelor’s degree.
• 10+ years of experience in this role.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.

DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations — helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world's most complex technology estates. Learn more on dxc.com.