Backend Applications Support Administrator 3/4 - Secret

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological solutions to enable strategic objectives. We’re looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours by expanding your personal network and developing skills, whether you are new to the field or an industry thought leader. At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career. The Northrop Grumman CIDO Classified Solutions team is seeking a Backend Applications Support Administrator to support information system lifecycle activities. The selected candidate will be required to work on-site, full-time at our Redondo Beach, CA location. Note: Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site. Responsibilities will include but not be limited to the following: Perform as a backend applications administrator for major enterprise and cyber applications. Messaging & collaboration: Microsoft Exchange, Skype for Business / Microsoft Teams–based services. Engineering & workflow tools: Atlassian stack (Jira, Confluence, Bitbucket) and related integrations. Data & databases: SQL-based applications and databases (e.g., MS SQL Server, Oracle, Postgres). License management: FLEXlm / FlexNet license servers and license-file management. Cybersecurity applications: Trellix (endpoint/host security), Nessus (vulnerability scanning), Splunk (logging, SIEM), and related toolsets. Focus on backend functions. Server and service configuration (Windows / Linux). Application service deployment, clustering/high availability, and performance tuning. Integration with Active Directory, DNS, PKI/certificates, and network components. Backend role/permission models as required for security and compliance. Troubleshoot complex issues affecting application services. Service outages, degraded performance, and connectivity failures. Integration problems between applications, databases, and cyber tools (Trellix/Nessus/Splunk). Failures in licensing (FLEXlm/FlexNet), authentication, or messaging services. Configure, patch, upgrade, and maintain. Exchange/Skype/Teams servers and supporting components. Atlassian servers and application-level integrations. Database instances supporting these applications. Trellix, Nessus, Splunk and related cyber platforms, including connectors, agents, and data feeds. Implement and maintain backend security controls. Coordinate with Cyber and ISSM/ISSO teams to align applications with NISPOM, RMF, JSIG, and internal security requirements. Support hardening and STIG implementation for application servers. Ensure