Top Tech Jobs & Startup Jobs in NYC, NY

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.

Lead enterprise data discovery, inventory, classification and governance initiatives. Evaluate and run POCs for tools (OneTrust, BigID, Varonis, Cyera, Delphix, RecordPoint, Collibra, Microsoft Purview). Conduct stakeholder workshops, assess classification accuracy, security, scalability, integrations, and metadata flow. Produce recommendations, feasibility assessments, roadmaps, and support Collibra integration.

Provide operational SAP HANA and SAP S/4HANA administration including installation, upgrades, patching, backup/recovery, system replication, performance tuning, monitoring, and troubleshooting. Support SAP Basis, SDI/Smart Data Integration, Cloud Connector, and SAP Analytics Cloud integrations. Manage certificates/SSL, networking connectivity, documentation, runbooks, incident response, change management, disaster recovery, capacity planning, and on-call support in regulated enterprise environments.

Manage and administer ARO/OpenShift clusters, design scalable Kubernetes deployment patterns with Helm, build reusable Helm charts, implement ArgoCD/GitOps CI/CD pipelines, configure service mesh (Istio/Linkerd), write/manage manifests and operators, onboard application teams, and monitor/troubleshoot platform performance.

Develop and maintain security observability dashboards for vulnerability scans, actions, and traceability. Gather requirements with stream leads, design and implement dashboards, provide team training on the stack, and support ongoing dashboard creation.

Source, engage, interview, and place technology candidates nationally; manage candidate experience, diversity initiatives, offer negotiation, metrics reporting, and collaborate with hiring managers and recruiting teams.

Lead end-to-end testing for SAP Ariba and SAP S/4HANA procurement solutions. Define test coverage, create and maintain manual and automated tests (Playwright/Java or JS), validate sourcing-to-pay workflows and integrations, manage defects, support release/regression cycles, and mentor team members on QA and automation practices.

Senior developer to lead a 5-6 person team on a Member Enrollment application. Support and resolve tier 2 enrollment incidents, handle business queries, develop features, and improve performance. Requires FACETS payer experience, EDI 834/820 knowledge, strong SQL debugging and web development skills (Angular/React and .NET). 6-month contract-to-hire, remote working EST hours.