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Senior Application Support Specialist

Guidehouse

WASHINGTON, DC, United States Full-time June 10, 2026
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Vacancy Description

**Job Family** **:**

Business Systems Analysis

**Travel Required** **:**

Up to 10%

**Clearance Required** **:**

Ability to Obtain Public Trust

**What You Will Do:**

+ Provide Tier III / advanced production support for complex enterprise applications, including .NET systems, Appian platforms, and microservices-based architectures.
+ Serve as a subject matter expert (SME) for application support activities, leading troubleshooting and resolution of critical incidents and outages
+ Perform deep-dive root cause analysis and implement long-term fixes for recurring issues.
+ Monitor application performance, logs, and system metrics to ensure availability, scalability, and reliability.
+ Lead coordination across development, DevOps, infrastructure, and security teams to resolve complex cross-system issues.
+ Support and oversee application deployments, releases, patches, and environment stability activities.
+...

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