Top Tech Jobs & Startup Jobs in Chicago, IL

Designs, implements, and supports secure, highly available IBM MQ and MFT integration environments. Responsibilities include AWS cloud infrastructure, Terraform-based infrastructure automation, Python scripting, CI/CD collaboration, security, monitoring, logging, disaster recovery, troubleshooting, and optimization of enterprise messaging and cloud platforms.

Develop and support RPGLE applications on IBM iSeries/AS400 platforms. Responsibilities include designing, coding, testing, debugging, maintaining legacy applications, writing CL programs and embedded SQL, optimizing DB2 performance, translating business requirements, and documenting technical solutions within an Agile SDLC environment.

Performs primarily manual QA testing across PeopleSoft, Workday, Archer, SaaS, EPM, compliance, and other enterprise applications. Executes functional, regression, integration, and UAT testing; creates test documentation; validates enhancements and fixes; conducts SQL-based data validation; supports automation; and partners with business, development, and project teams to identify risks and testing gaps.

Own the architecture, development, performance, and support of interactive 3D product configurators using WebGL and JavaScript frameworks. Integrate configurator recipes with Salesforce Commerce Cloud, SAP S/4HANA, PLM, PIM/MDM, middleware, OMS, and WMS systems to ensure accurate SKUs, BOMs, pricing, availability, and fulfillment. Lead technical design, code reviews, performance optimization, accessibility, data contracts, asset pipelines, personalization moderation, and end-to-end commerce integration.

Leads enterprise change management for organizational and technology transformations. Develops change, communication, stakeholder engagement, and adoption strategies; conducts impact and readiness assessments; supports change champions; creates training materials; facilitates workshops; monitors adoption metrics; coaches leaders; and promotes sustainable implementation across the enterprise.

Provides mainframe patch-management expertise using SMP/E and z/OSMF. Responsibilities include CVE reporting, patch automation, response modeling, validation cadence, package stability reviews, dashboard improvements, baseline dataset development, vulnerability-tool integration, and secure patch deployment. The role also develops AI-driven prompts and automation for testing, RFB validation, and impact analysis while supporting z/OS and ISV software installation, maintenance, customization, and testing.

Administer and troubleshoot IBM z/OS network systems and connectivity, including VTAM, TCP/IP, TN3270, FTP, Policy Agent, and SMTP. Manage TSO, ISPF, JCL, VSAM, catalogs, and JES2 operations. Develop automation scripts and monitoring or reporting tools, support MQ, DB2, CICS, file transmission, printing, and email infrastructure, and collaborate with enterprise network and security teams.

Administer and support IBM z/OS environments, including installations, upgrades, maintenance, lifecycle management, and complex troubleshooting. Use SMP/E for software maintenance, PTFs, APARs, and HOLDDATA processing. Develop REXX automation and administer z/OSMF services and workflows. Monitor performance, availability, capacity, and system health; support upgrades, migrations, disaster recovery testing, production operations, and on-call activities. Collaborate across infrastructure teams, maintain technical documentation, and mentor other mainframe administrators.

Validate and implement AI fencing controls across z/OS environments through adversarial testing, monitoring, alerting, forensic analysis, and sanitized validation. Design disruptive AI testing labs, test non-privileged user operations, support secure AI adoption, and assess GenieZ production readiness. Requires deep z/OS internals expertise, catalog management, USS security, software installation, complex troubleshooting, advanced testing, REXX, Python, and 10+ years of experience.

Design, build, test, and maintain scalable web applications. Create responsive UIs with Angular or React (TypeScript), implement Python/Flask backends and RESTful APIs, design relational schemas, troubleshoot production issues, perform code reviews, and mentor junior developers.