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Backend Applications Support Administrator - Secret

Job in Redondo Beach, Los Angeles County, California, 90278, USA
Listing for: Northrop Grumman
Full Time position
Listed on 2026-09-14
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Salary/Wage Range or Industry Benchmark: 120000 - 190000 USD Yearly USD 120000.00 190000.00 YEAR
Job Description & How to Apply Below

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.

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 / Flex Net 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/Flex Net), 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 vulnerability management workflows (Nessus) and logging/monitoring pipelines (Splunk, Trellix) are functioning and integrated.
  • Monitor application and cyber-tool health.
  • Configure dashboards/alerts (e.g., in Splunk or other monitoring tools) for service status, capacity, and errors.
  • Analyze logs to identify root causes and recurring issues, then drive remediation.
  • Support configuration management and change control.
  • Maintain standard builds and baselines for backend services.
  • Document and execute changes through appropriate change management processes.
  • Work across disciplines (systems engineering, networking, database administration, cyber security, and application teams) to isolate issues between application and operating system, application and database, cyber tools and monitored endpoints/servers, and license services (FLEXlm/Flex Net) and application usage.
  • Maintain and develop technical documentation for backend application architecture, configuration, and…
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