Lead z/OS Connect Specialist / System Administrator

Infinite Computer Solutions

Job details:
Role: Lead z/OS Connect Specialist / System Administrator

Duration : 6 Months

Shift: 08:00 AM EST to 5:00 PM EST

Remote (US)

Total Experience: 15+ Years

Relevant Experience: 10+ Years

Job description:

As a z/OS Connect Specialist / System Administrator you will solve complex technical problems and support modernization across mainframe platforms and services. You will work with critical enterprise clients to enable secure API integration between core mainframe applications and modern distributed, digital, and cloud platforms.

There is no typical day in this role, as each client environment and integration requirement may be different. You will be responsible for supporting z/OS Connect runtime environments, configuring API services, managing security, troubleshooting production issues, supporting deployments, and working closely with application, infrastructure, security, network, and architecture teams.

You will also contribute to modernization initiatives by helping expose mainframe applications and data through secure REST APIs, improving integration capabilities, reducing operational risk, and supporting faster delivery of business requirements.
Key Responsibilities

Install, configure, customize, upgrade, and maintain IBM z/OS Connect environments.

Perform end-to-end administration of z/OS Connect Enterprise Edition, including runtime setup, server configuration, API/service deployment, security configuration, and operational support.

Configure and manage z/OS Connect server.xml, started tasks, runtime libraries, configuration files, and related system components.

Support API provider and API requester configurations within z/OS Connect.

Create, deploy, validate, and troubleshoot REST API services using JSON, OpenAPI/Swagger definitions, and service archives.

Configure and support backend integration with:

CICS

IMS

Db2

MQ

Batch or REST-enabled mainframe services

Administer and troubleshoot WebSphere Liberty profile components used by z/OS Connect.

Configure and manage security for z/OS Connect environments, including:

RACF / SAF authentication and authorization

TLS / SSL certificates

Keyrings and keystores

User and group access controls

API-level security policies

Support certificate management, secure communication, network connectivity, and port configuration.

Troubleshoot z/OS Connect startup issues, API invocation failures, backend connectivity problems, security failures, response delays, and runtime errors.

Analyze logs, traces, dumps, Liberty messages, z/OS Connect diagnostics, and system logs to resolve technical issues.

Support performance monitoring, tuning, and capacity review for z/OS Connect API workloads.

Work with application teams to expose existing mainframe transactions and data as secure APIs.

Collaborate with architecture, security, network, middleware, and application teams to support API modernization requirements.

Manage incident, problem, change, release, and service request activities as per ITIL processes.

Support production deployments, planned maintenance, DR activities, upgrades, patching, and audit/compliance requirements.

Create and maintain technical documentation, including installation guides, configuration documents, runbooks, troubleshooting guides, and operational procedures.

Recommend modernization, automation, and continuous improvement opportunities related to mainframe API enablement.

Required Technical and Professional Expertise

14+ years of experience with IBM z/OS Connect Enterprise Edition

Proven expertise in installation, customization, configuration, and support of z/OS Connect environments

Deep understanding of z/OS Connect server configuration and runtime components, API provider/requester configuration

REST API enablement, JSON processing, and OpenAPI/Swagger definitions

Policy management and service archive deployment

Strong experience integrating z/OS Connect with CICS, IMS, Db2, and MQ

Expertise in troubleshooting API-related issues including performance, connectivity, and authentication failures

Strong z/OS System Programming / Administration experience, including SMP/E, JCL, JES2, TSO/ISPF, USS, RACF, TCP/IP, and SDSF

Experience managing system datasets, libraries, and configuration components

Strong knowledge of WebSphere Liberty profile on z/OS, including JVM and deployment configuration

Hands-on experience with RACF/SAF security, TLS/SSL, and certificate management

Strong understanding of enterprise production support processes (incident, problem, change, release management)

Preferred Technical and Professional Experience

Experience with mainframe API modernization initiatives and hybrid cloud integration

Exposure to enterprise integration patterns and microservices architecture

Experience working in large-scale, global delivery or managed services environments

Domain experience in Banking, Financial Services, Insurance (BFSI), Retail, or Healthcare

Familiarity with automation tools and DevOps practices in mainframe environments

Experience with performance monitoring and tuning for API workloads and z/OS systems

Apply

Vacancy posted 1 day ago

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