Application Support Engineer Jobs in California (NOW HIRING)

IT Support Engineer Greater San Diego Area | On-Site | $105,000-$125,000 Base

Arena Staffing has partnered with a confidential, well-established company Near Vista San Diego area that is hiring an IT Support Engineer to run day-to-day IT and business-application support from its local headquarters.

This is a hands-on, on-site individual contributor role with approximately 80% focused on business-application support and 20% on traditional IT and end-user support. The ideal candidate has experience supporting ERP, CRM, e-commerce, SaaS, shipping, or other enterprise applications and understands how technology supports departments such as Accounting, Customer Service, Operations, and Distribution.

This is not a developer role. The company needs someone who can troubleshoot problems, isolate the likely cause, resolve front-end issues when possible, and own more complex issues through escalation to the appropriate MSP, software vendor, or application expert.

Why This Role Is Worth Considering

• High-visibility role working closely with the CTO, executives, and department leaders
• Strong focus on business applications rather than traditional help desk support
• Exposure to ERP, e-commerce, shipping systems, integrations, endpoint support, and IT operations
• Opportunity to work across Accounting, Customer Service, Distribution, HR, and other departments
• Hands-on ownership of issues from initial request through final resolution
• Stable, established Southern California employer with multiple local locations
• Opportunity to improve documentation, processes, runbooks, and knowledge-base content
• Environment that values curiosity, critical thinking, communication, and resourcefulness

Role Snapshot

Title: IT Support Engineer

Location: Greater San Diego Area

Schedule: Full-time, on-site 5 days per week

Travel: Approximately 10-15%, primarily to a nearby Escondido location, with occasional travel to Anaheim

Reports to: Chief Technology Officer

Role Type: Individual Contributor

Compensation: $105,000-$120,000 base, with potential flexibility up to approximately $125,000 for exceptional experience

What You Will Do

Business-Application Support, Approximately 80%

• Provide front-end support for ERP, CRM, e-commerce, SaaS, shipping, and other business-critical applications.
• Support user accounts, permissions, configuration, access, workflows, and application-related issues.
• Troubleshoot problems affecting Accounting, Customer Service, Distribution, Operations, and other departments.
• Determine whether an issue is related to the user, data, configuration, application, integration, workstation, or another connected system.
• Troubleshoot ERP and e-commerce order, synchronization, workflow, and integration issues.
• Support shipping stations, printers, labels, FedEx-related systems, and connected Distribution applications.
• Resolve front-end issues when possible and escalate deeper problems with clear screenshots, reproduction steps, troubleshooting notes, priority, and business impact.
• Coordinate with ERP specialists, software vendors, MSPs, database resources, and other application partners until issues are fully resolved.
• Learn unfamiliar applications and workflows using documentation, online resources, and AI tools.

IT and End-User Support, Approximately 20%

• Serve as the professional, on-site face of IT for employees, executives, and department leaders.
• Support Windows and macOS computers in a mixed-device environment.
• Troubleshoot hardware, software, connectivity, printers, peripherals, conference-room technology, and user-access issues.
• Manage walk-up requests, support tickets, remote support, asset tracking, and device readiness.
• Partner with HR on onboarding, offboarding, equipment preparation, account provisioning, and access changes.
• Support SSO, MFA, identity provisioning, and access management.
• Maintain accurate IT documentation, runbooks, escalation procedures, user guides, and knowledge-base content.
• Provide limited after-hours support for critical business interruptions or outages.

What You Need to Bring

• Approximately 5-8 years of hands-on IT support, desktop support, IT operations, or related experience preferred.
• Hands-on experience supporting or administering an ERP, CRM, e-commerce, SaaS, or other enterprise business application.
• Experience troubleshooting business-application issues for departments outside of IT.
• Ability to understand business workflows and how systems affect upstream and downstream processes.
• Experience troubleshooting connected or integrated systems.
• Experience coordinating with MSPs, software vendors, or outside technical experts through resolution.
• Multi-site IT support experience.
• Strong Windows and macOS support skills.
• Experience with ticketing systems, endpoint support, remote support, asset tracking, hardware, printers, and peripherals.
• Familiarity with cloud productivity platforms, SSO, MFA, directory services, identity provisioning, and access control.
• Working knowledge of Active Directory, DNS, DHCP, and Group Policy is helpful.
• Strong troubleshooting, documentation, communication, organization, and customer-service skills.
• Ability to remain calm and effective while managing walk-up support, tickets, executive needs, and competing priorities.

Nice to Have

• Manufacturing, medical device, dental, life sciences, or other regulated-industry experience
• Computer system validation, CSV, or 21 CFR Part 11 exposure
• MSP-backed or multi-vendor IT environment experience
• Low-code or no-code application support
• PowerShell, Bash, Python, scripting, or automation experience
• Experience using AI tools such as ChatGPT, Claude, Gemini, Microsoft Copilot, or similar tools for troubleshooting, documentation, or productivity
• CompTIA A+, Network+, ITIL, cloud, identity, endpoint, or related certifications

Interview Process

Round 1: Interview with senior technology leadership

Round 2: Executive leadership interview

Final: In-person interview with technology leadership

Equal Employment Opportunity

Arena Staffing and our client are equal opportunity employers. Qualified applicants are considered for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity or expression, national origin, age, disability, genetic information, veteran status, or any other protected status under applicable law. Reasonable accommodations are available throughout the hiring process.