Sr. Appian Systems Administrator

Description Join us in transforming how technology serves those who serve. At Leidos,we'renot just delivering solutions -we'repioneering 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. Primary Responsibilities The Digital Modernization Sector at Leidos is seeking a dynamic SrAppian System Administrator to support cloud modernization initiatives for the United States Coast Guard (USCG) atCommand, Control, Communication, Computer, Cyber, and Intelligence Service Center (C5ISC) in the Alexandria, VA area.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 willhavestrongexpertisein Appian 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, Salesforce,OutSystems,Mendix, or similar platforms. Key Responsibilities Administer andmaintainthe Appian platform across 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 foradditionalallow-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. Pay Range $92,300.00 - $166,850.00 Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at Securing Your Data Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at View email address on click.appcast.io. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. Original Posting June 10, 2026 #J-18808-Ljbffr Leidos Inc