Senior z/OS Developer

Minor Hotels Europe and Americas

Senior z/OS Assembler Programmer at Capgemini Engineering helping innovative companies. Develop, enhance and support enterprise z/OS products in a remote role.

Posted 7/18/2026full-timeRemote • Texas • 🇺🇸 United StatesSenior💰 $82,082 - $193,440 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Assembler Language Coding and complex legacy application analysis, with strong capabilities in dump analysis, JCL, and z/OS environments. Proficient in leading development efforts and effectively communicating with customers to manage challenging situations.

Highest-signal resume keywords

Assembler Language CodingDump AnalysisJob Control Language (JCL)Z/OS Task ManagementUNIX System Services (USS)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Assembler Language CodingDump AnalysisJob Control Language (JCL)VSAM Data StructuresPerformance TuningSMP/EREXX ScriptingTLSSystem SSLIBM C/C++ Development

Soft Skills

Effective CommunicationLeadership

Tools & Technologies

Z/OSTCP/IPSNA Networking ProtocolsManaged File Transfer (MFT)Recovery Termination Management (RTM)

Industry Keywords

MainframeBatch ProcessingFile ManagementAutomation ScriptsCore z/OS System Products

Tech Stack

Tools & technologies

TCP/IPUnix

About the role

Key responsibilities & impact

Understand complex legacy assembler applications quickly
Analyze, design and code new features
Diagnosing difficult production problems using dumps and traces and code fixes for the problems
Lead others in development and L3 work
Communicate effectively with customers and manage difficult situations

Requirements

What you’ll need

Expert in assembler language coding, with at least a decade of experience
Strong knowledge of dump analysis
Nice to have Experience working with TCP/IP and SNA networking protocols within z/OS environments
Understanding of Job Control Language (JCL) and its application in batch processing and system operations
Experience with VSAM data structures, file management, and performance tuning
Knowledge of z/OS task management, including Recovery Termination Management (RTM) and I/O support services
Familiarity with SMP/E for software installation, maintenance, and upgrade management
Experience working with UNIX System Services (USS) in z/OS environments
Knowledge of IBM C/C++ development on the mainframe platform
Experience developing and maintaining automation or utility scripts using REXX
Understanding of TLS, System SSL, and zIIP processor technologies to support secure and optimized mainframe workloads
Previous experience supporting or developing Managed File Transfer (MFT) solutions or other core z/OS system products would be highly beneficial

Benefits

Comp & perks

Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade
Company paid holidays
Personal Days
Sick Leave
Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
Life and disability insurance
Employee assistance programs
Other benefits as provided by local policy and eligibility