Sr. Appian Systems Administrator

Join us in transforming how technology serves those who serve.

At Leidoswerenot just delivering solutions werepioneering the future of defense and intelligence technology. Our diverse teams of innovators unite around a singular purpose: empowering our customers to succeed in their critical missions. We believe in leading with integrity investing in our communities and building sustainably for tomorrow.

Shape the future of digital defense.

Our Digital Modernization sector is at the forefront of next-generation technology architectingcutting-edgesolutions in cyber defenselogisticsoptimization security operations and decision intelligence.Werethe minds behind the mission-critical systems that keep our nation secure.

Ready toengineersolutions that matter

Primary Responsibilities:

The Digital Modernization Sector at Leidos is seeking a dynamicSrAppian System Administratorto support cloud modernization initiatives for theUnited States Coast Guard (USCG)atCommand Control Communication Computer Cyber and Intelligence Service Center (C5ISC) in theAlexandria VAarea.This role is part of a high-impact program focused on delivering secure scalable cloud solutions that enable operational agility and resilience across the USCG enterprise.

AstheAppian System Administrator you willhavestrongexpertiseinAppian platform administration. This role also includes responsibilitytosupport the administration maintenance optimization and governance of enterprise low-code/no-code platforms.The ideal candidate willalsohaveexperience supporting or integrating other low-code/no-code solutions such asServiceNow Microsoft Power Platform Pega SalesforceOutSystemsMendix or similar platforms.

Key Responsibilities:

• Administer andmaintaintheAppian platformacross development test staging and production environments.
• Manage Appian upgrades patches deployments backups and disaster recovery processes.
• Configure andmaintain:
• User access and security roles
• Authentication (SSO LDAP SAML OAuth)
• Infrastructure and environment settings
• Monitoring and alerting
• Troubleshoot platform issues performance bottlenecks and integration failures.
• Support CI/CD processes and deployment automation for Appian applications.
• Collaborate with developers architects infrastructure teams and business stakeholders.
• Establish and enforce governance standards operational procedures and best practices.
• Monitor system health capacity planning and platform performance metrics.
• Support integrations with enterprise systems APIs databases and cloud services.
• Participate in platform modernization and low-code/no-code strategy initiatives.
• Provide administration and operational support foradditionallow-code/no-code platforms where applicable.

Basic Qualifications:

• Requires BS and 8 years of prior relevant experience or Masters with 6 years of prior relevant experience additional years of experience will be accepted in lieu of a degree.
• 3 years of experience administering and supporting Appian platforms in enterprise environments.
• Strong knowledge of:
  • Appian platform architecture and components
  • Environment administration and platform health monitoring
  • Application migration and deployment processes across development test and production environments
  • Security administration user provisioning and role-based access controls
  • Appian platform upgrades patching maintenance and high-availability configurations
• Experience supporting at least one additional low-code/no-code platform such as:
  • Microsoft Power Platform
  • ServiceNow
  • Pega
  • Salesforce Platform
  • UiPath
• Experience troubleshooting and resolving platform application and integration issues within production environments.
• Familiarity with:
  • Windows and/or Linux server administration
  • Cloud environments such as AWS Azure or Google Cloud Platform (GCP)
  • SQL databases and database connectivity
  • REST and SOAP APIs
  • DevOps practices and CI/CD pipeline tools (e.g. Azure DevOps Jenkins GitLab)
• Experience supporting platform security compliance patch management and operational best practices.
• Strong analytical problem-solving and troubleshooting skills.
• Excellent verbal and written communication skills with the ability to effectively document processes procedures and technical solutions.
• Ability to work collaboratively across infrastructure development cybersecurity and business stakeholder teams.

Preferred Qualifications:

• Appian Certified System Administrator certification.
• Experience with containerized or cloud-native deployments.
• Knowledge of infrastructure automation tools.