Senior Software Integration Engineer

Leidos Holding • $107K — $195K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Active TS SCI Clearance, CI Poly eligible; Must be a US Citizen
  • 8 or more years of relevant experience
  • Excellent written and verbal communication skills
  • Demonstrated ability to document processes/procedures
  • Ability to debug software issues and recommend fixes
  • SEC+ or DoD 8570 IAT Level II certification, or ability to obtain within 60 days

Responsibilities

  • Leverage project management skills to manage client integrations
  • Debug software issues and recommend solutions
  • Brief leadership on product and implementation details
  • Support authentication, Single Sign On (SSO), and cloud infrastructure
  • Document and analyze the organization's enterprise IT architecture
  • Perform software testing and validation procedures
  • Facilitate system integration and service merging

Benefits

  • Opportunity to work in a critical mission environment
  • Mentorship from industry experts in ICAM technology
  • Exposure to evolving technologies and best practices
  • Complex problem-solving in a dynamic environment
  • Support for further training and certifications
Full Job Description

The GEOAxIS system provides Identity, Credential and Access Management (ICAM) for web applications. GEOAxIS enables online, on-demand, access to NGA GEOINT content based on user’s authoritative attributes/roles. Our Mission is to maintain highly available ICAM services for protecting those critical mission applications across multiple security domains. The GxNext contract was awarded to Leidos in 2021 and runs until 2031.


In this role, you’ll work directly with the Consumer Integration team in Chantilly, Virginia to meet deadlines and improve their technical procedures. You will enjoy learning new concepts and technologies and will brief status and capabilities to technical and non-technical audiences as you support them throughout their integration. Day-to-day, you’ll be working with consumers of Gx services all over the world to support their mission activities.

Responsibilities:

  • Leverage project management skills to manage a client’s integration with our services
  • Debug software issues, investigate root causes, and recommend fixes
  • Brief Program and/or Customer leadership; Communicate to clients and partners aspects of both the product and the implementation at the technical and functional level appropriate for the situation
  • Implement, evolve, and support authentication, Single Sign On (SSO), Security Assertion Markup Language (SAML), federation, and cloud infrastructure
  • Implement methods, standards, and approaches for describing, analyzing, and documenting an organization's enterprise IT architecture
  • Perform software testing or validation procedures, improving the procedures as needed
  • Perform system integration and experience integrating services from different systems
  • Help remove impediments and raise larger issues to the Program Leadership
  • Feeding the CI/CD pipeline – requirements gathering through usability sessions

Basic Qualifications:

  • Active TS SCI Clearance, CI Poly eligible; Must be a US Citizen
  • 8 or more years of relevant experience
  • Excellent written and verbal communication skills and extensive experience working with external
  • Demonstrated ability to document processes/ procedures
  • Ability to recognize when the client requires customizations to a standard solution
  • Ability to debug software issues, investigate root causes, and recommend fixes
  • SEC+ certification or DoD 8570 IAT Level II certification, or ability to attain certification within 60 days of start

Preferred Qualifications:

  • Active TS SCI clearance with CI Poly
  • Bachelor’s degree or equivalent work experience with 8 years of relevant work experience or master’s degree with 6 years of prior relevant experience
  • Active CompTIA Sec+ Certification
  • Demonstrated experience in strong authentication technologies and protocols (e.g., PKI, SSL)
  • System administration skills with Linux systems
  • Knowledge of software development lifecycle (SDLC), Scrum, and Agile processes
  • Knowledge of Oracle Identity and Access Management (IdAM) suite, including Oracle Access Manager (OAM), and Oracle Unified Directory (OUD)
  • Knowledge of Ping, Kubernetes, Docker, and Ansible
  • Knowledge of authentication standards using OAuth, SAML, or PKI
  • Knowledge of open standards such as REST, SOAP, JSON, LDAP
  • Knowledge of Authentication (AuthN), Authorization (AuthZ), Digital Policy Management (DPM), Entitlement Management (EM), and Authoritative Attributes (AuthA)

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:
September 24, 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 $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

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For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

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Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

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Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

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