Sr Application Support Engineer

MGM Resorts International

97d

About The Position

The Senior Application Support Engineer is responsible for ensuring the stability, availability, and performance of applications across MGM Resorts International. This role provides advanced second- and third-level support to resolve complex operational issues in accordance with defined SLAs. The Senior Engineer conducts in-depth root cause analysis implements automated solutions to enhance system resilience and availability, and ensures applications remain self-healing and robust. They mentor junior engineers, promote knowledge sharing, and work closely with other IT teams to ensure timely and high-quality issue resolution across the enterprise.

Requirements

• Bachelor's degree in a related field required.
• Minimum of 4 years of relevant IT experience, with strong technical knowledge across hardware, software, networking, and application support, including experience developing complex solutions.
• Proficiency in troubleshooting and managing enterprise platforms such as UNIX, Windows Server, Citrix, AIX, AS400, and network protocols (TCP/IP, SNMP); MCSA or equivalent experience is a plus.
• Strong project management skills with the ability to plan, prioritize, and execute tasks efficiently while demonstrating excellent follow-through.
• Familiarity with ITIL processes and a solid understanding of system error diagnostics, system integrations, and vendor hardware certifications (DCSE, HP, IBM, etc.) preferred.
• Excellent verbal and written communication skills, with the interpersonal ability to work effectively across business units and maintain professionalism in line with MGMRI standards.

Nice To Haves

• Experience in hospitality or F&B environments, including systems such as Opera, LMS, Infogenesis, Zenoti, and integrations with hotel partners like Expedia.

Responsibilities

• Resolve escalated application issues from Operations Center Analysts, Tier 1 teams, and third-party vendors, serving as a Subject Matter Expert (SME) for complex incidents.
• Participate in and lead project and strike team meetings, acting as an escalation point and technical advisor as needed.
• Maintain in-depth understanding of system and application topologies, including interfacing systems and dependencies.
• Create, update, and manage documentation such as KBAs, FAQs, issue logs, and technical guides related to application support.
• Collaborate with IT teams, vendors, and business users to resolve issues and escalate to Tier 3 support when necessary.
• Provide mentoring and technical leadership to junior engineers, including guidance on version control and support practices.
• Demonstrate advanced knowledge across key platforms (AS400, Dell, HP, Tandem/Stratus), operating systems (Windows, Unix/Linux, OS400), and technologies (Java, Active Directory, Citrix, application installation).

Benefits

• Wellness incentive programs to help you stay healthy physically and mentally.
• Access to company hotel, food and beverage, retail, and entertainment discounts as well as discounts with company partners on things like travel, electronics, online shopping, and more.
• Free meals in our employee dining room.
• Free parking.
• Health & Income Protection benefits (for eligible employees).
• Professional and personal development through programs and networking opportunities as well as volunteer opportunities in the community.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Bachelor's degree
• Number of Employees: 5,001-10,000 employees