Tier 2 System Maintainer (day staff)

Leidos has an opening for an experienced System Maintainer supporting mission applications maintenance in Aurora, CO. This is an exciting opportunity to apply your experience to support our customer's mission.

What you will do:

Ensure the availability of mission processors through proactive Tier 2 SW maintenance Lead the performance of incident and problem management to resolve or escalate issues Support configuration management and change management activities Support service transitions including migrations to cloud infrastructure Lead request fulfillment activities including account management and configuration changes Coordinate with other software maintenance, operations and engineering contracts as required Lead and ensure the documentation all work performed via ticketing system Create, update or enhance maintenance and operations documentation Ensure security of mission processors and IT infrastructure Provide call-in support as required Basic Qualifications United States' citizen with current TS/SCI with Polygraph Bachelor's Degree with 4+ years of experience or 4 additional years in lieu of degree Current DoD 8570 certification applicable to the position (typically Security+) 4+ years' experience performing Tier 2 software maintenance on mission critical systems Proven experience with one or more of the following technical disciplines: Current and legacy software development languages and tools (i.e. C, C++, Java, XMIDAS) Linux, including extensive command line use Enterprise storage management and configuration Database management systems and tools (i.e. Oracle, MySQL) TCP/IP networking in an enterprise environment Information system security, including IAVA management and ICD 503 compliance Experience supporting configuration management, change management and service transition Excellent verbal and written communication skills Proven ability to work collaboratively and constructively as part of a team Must be willing to perform call-in support as required Preferred Qualifications Mission operations experience Systems engineering and integration experience Mission-specific technical knowledge Software development ITIL Framework If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

April 28, 2026 For U.S.

Positions:

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $87,100.00 - $157,450.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.

Leidos.com. 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 here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. Commitment and Diversity 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.