IT Jobs in Irvine, CA

Lead and manage IT Ops team delivering help desk and sysadmin services, own runbooks and SLAs, drive automation and projects (backup, virtualization, provisioning), handle escalations and cross-team compliance coordination, and hire/mentor staff.

The Technology Audit Manager leads internal and external security audits, coordinating activities, managing stakeholders, and integrating findings into risk processes.

The Manager, IT Business Partner manages IT initiatives, translating business needs into actionable projects, ensuring timely delivery, and enhancing process efficiency through stakeholder engagement and program management.

Own and operate the IT ticketing system and provide end-user support across corporate offices and hotels. Troubleshoot Windows, Microsoft 365, networking, endpoints, printers, and business apps. Use AD/Entra ID, Intune, Exchange Online, Teams, SharePoint, and PowerShell. Monitor endpoint security, assist with vulnerability remediation, support onboarding/offboarding, asset management, and infrastructure deployments.

As an IT Support Specialist, you will provide technical support to end users, troubleshoot issues, assist with IT projects, and manage employee onboarding/offboarding activities.

Provide day-to-day IT support for end users, manage new-hire provisioning and asset inventory, maintain building tech (alarms, access control, cameras), support VoIP (VTX, Amazon Connect), manage software subscriptions and vendor relationships, and create internal documentation.

Lead the IT team to plan, implement, and maintain IT infrastructure and initiatives. Manage networks, servers, cloud services, vendors, budgets, and supervise staff while ensuring secure, scalable systems and alignment with organizational goals.

Maintain and modernize enterprise IT infrastructure across networking, servers, virtualization, cloud (AWS), and security. Troubleshoot and optimize Arista networks and Palo Alto firewalls, administer Linux systems, support virtualization and migrations, implement security/patch management, participate in projects and on-call maintenance, and produce technical documentation.

Lead high-volume, full life-cycle IT recruiting for the West region, driving strategic resourcing, best practices, partner relationships and candidate experience. Source and evaluate candidates, manage pipelines, coordinate interviews and offers, negotiate fulfillment with account teams and partners, and ensure diverse hiring practices and compliance.

Senior Windows-focused Platform Engineer responsible for administering Windows server environments, supporting IBM FileNet/DataCap/BAW/ICN applications, ensuring security and performance, implementing monitoring, troubleshooting production issues, documenting systems, and collaborating with internal teams and clients to improve platform stability and processes.

Design, build, and maintain automated test frameworks and scripts. Lead test strategy, planning, and execution across functional, load, integration, security, server-side, and ETL testing. Create test artifacts, run automated tests, analyze results, report defects, participate in CI/CD, code reviews, and agile ceremonies, and drive issue resolution.

Develop prototypes, PoCs, and MVPs for GenAI solutions. Apply deep learning and ML principles using Python, Hugging Face, LangChain, OpenAI API, TensorFlow/Keras/PyTorch, and cloud model services. Work with multi-modal data and intelligent agent tools. Be self-motivated, collaborative, and focused on solving hard AI/GenAI problems.

The Senior IT Systems Engineer is responsible for designing, implementing, and managing Microsoft 365 and other enterprise IT systems, ensuring secure operations and supporting modernization initiatives.

Provide technical support, troubleshoot hardware/software issues, manage IT Help Desk tickets, and maintain IT infrastructure. Assist with onboarding and offboarding processes.

Lead IT and operational audit engagements, perform SOX/ITGC testing, assess control deficiencies, support remediation and attestations, coordinate with external auditors, and advise IT/Finance on control improvements and emerging risks such as AI governance.

Lead high-volume, full life-cycle IT recruiting for the West region: source and qualify candidates, manage partner relationships, drive strategic resourcing, educate account teams on best practices, and manage offer/background processes to fill roles from entry to director level.

Design, build, test, and maintain iOS applications using Swift (Objective-C a plus). Collaborate with designers, product and backend teams, integrate RESTful APIs, perform unit testing and debugging, participate in code reviews and Agile ceremonies, and support App Store deployment.

The IT Project Manager coordinates internal information system projects from initiation to delivery, overseeing planning, execution, and closure. Responsibilities include managing project scope, budget, team leadership, risk management, and communication with stakeholders.

Serve as the escalation point for Tier 1, resolving complex desktop, macOS, and network issues; provide high-touch support to executives; administer Microsoft 365 (Entra ID, Exchange, Intune, SharePoint/OneDrive, Teams); troubleshoot switches, wireless, and endpoint security; mentor Tier 1 staff; own root-cause diagnosis and ticket resolution; assist with equipment moves and occasional after-hours business-critical support.

Provide first-level IT support and maintenance for desktops, servers, printers, and network equipment; monitor backups and antivirus; perform hardware/software installs, upgrades, and repairs; assist on IT projects and support internal clients in a fast-paced, on-site office environment.

Lead development and implementation of preventive and predictive maintenance for onshore mechanical equipment, use CMMS to plan and monitor maintenance, analyze reliability data, perform RCA, support operations and maintenance teams, ensure safety and compliance, and recommend improvements to reduce downtime and costs.

Design, build, and operate AWS-native AI/ML systems: RAG pipelines, fine-tuned LLMs, and microservices. Implement IaC (Terraform), CI/CD, policy guardrails, and production deployments integrating Bedrock/SageMaker, LangChain, and telemetry for secure, scalable enterprise use.

Lead development and implementation of preventive and predictive maintenance programs for offshore mechanical equipment, use CMMS to plan and track work, perform RCA for failures, support offshore teams in troubleshooting, monitor equipment reliability, and ensure compliance with safety and maintenance standards.

Lead and build IT and cybersecurity functions, own the system security plan, prepare for CMMC Level 2 certification, integrate business systems, provide hands-on IT support, and scale security and IT teams in a hardware-plus-software startup.

Provide Tier 2/3 technical support for US THV Field Representatives: troubleshoot and repair desktops, laptops, peripherals; manage imaging and deployments; coordinate vendors; train users; maintain tickets and documentation; assist device readiness, onboarding, and lifecycle upgrades; escalate recurring issues and partner with identity, networking, security, and application teams to resolve field-impacting incidents.