Senior Technical Support Engineer

LHH is currently partnering with a company in Irvine to help them find their next Sr. IT Support Engineer. This role will play a key role in a growing managed services environment. This is a hands-on, high-impact position for someone who enjoys balancing project-based work with advanced troubleshooting and client-facing support. You’ll work across multiple client environments, owning everything from infrastructure improvements and cloud initiatives to complex escalations and technical guidance for the broader team. Candidates must be ok working onsite 5 days a week! Key Responsibilities Designing and delivering infrastructure, cloud, and security solutions across diverse client environments Serving as a senior escalation resource and resolving complex technical issues end to end Supporting Microsoft 365, Azure/Entra ID, networking, backups, and security tooling Function as the Tier 2/3 escalation resource across all managed client environments Partnering directly with client stakeholders during high-priority or sensitive situations Mentoring junior engineers and helping raise the technical bar across the team Creating and maintaining clear standards and documentation to ensure consistency and quality Required Qualifications 5+ years of experience in IT support or service desk environments Prior experience in a Managed Services Provider (MSP) environment strongly preferred Advanced knowledge in firewall administration, network design, and troubleshooting Experience with ITSM platforms (e.g., ServiceNow, ConnectWise, Jira Service Management) Strong working knowledge across Microsoft 365, Active Directory/Entra ID, endpoint management, NOC, networking fundamentals Demonstrated ability to manage multiple priorities across diverse client environments Excellent communication, leadership, and customer service skills CompTIA certifications are highly preferred Disclaimer: This is not a C2C/C2H opportunity and only accepting candidates within the US or authorized to work/not needing sponsorship now or in the future. Equal Opportunity Employer/Veterans/Disabled To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable: The California Fair Chance Act Los Angeles City Fair Chance Ordinance Los Angeles County Fair Chance Ordinance for Employers #J-18808-Ljbffr LHH