Application Software Engineer
Company: Leidos
Location: San Diego
Posted on: April 1, 2026
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Job Description:
Leidos has a new and exciting opportunity for a Applications
Software Engineer in our National Security Sector's (NSS) Cyber &
Analytics Business Area (CABA) . Our talented team is at the
forefront in Security Engineering, Computer Network Operations
(CNO), Mission Software, Analytical Methods and Modeling, Signals
Intelligence (SIGINT), and Cryptographic Key Management. At Leidos
, we offer competitive benefits , including Paid Time Off, 11 paid
Holidays, 401K with a 6% company match and immediate vesting,
Flexible Schedules, Discounted Stock Purchase Plans, Technical
Upskilling, Education and Training Support, Parental Paid Leave,
and much more. Join us and make a difference in National Security!
PROGRAM SUMMARY: Product development includes tactical mobile
development as well as enterprise web application development. The
portfolio of products support the Cybersecurity and Information
Assurance domains. These systems deploy a variety of technologies
and communicate with infrastructure interfaces to bring secure,
modern-day Cybersecurity and Cryptographic Key Management solutions
to the warfighter. Primary Responsibilities: The successful
candidate will work on a mix of web service development, full stack
web application development and robust persistence layer
implementations in an Agile Scrum environment. This involves the
use of Themes, Epics, User Stories, acceptance criteria and other
system engineering artifacts as part of an Agile team. He/she will
use a variety of software engineering best practices and clean
coding techniques to ensure that developed code is maintainable,
efficient, reliable, understandable, secure, fault tolerant and
meets S.O.L.I.D coding principles. The candidate will be
knowledgeable about (and apply) secure software development
principles and techniques. He/she will use software tools in
cooperation with continuous integration and test automation
management process and understand software components and their
interface requirements. The candidate will interface with software
engineers, system engineers, information assurance engineers, test
engineers, quality assurance, and other project team members.
He/she will be responsible for setting the standards and helping
the team adopt and adhere to Test Driven Development (TDD)
practices within the Leidos Agile Framework to ensure the proper
degree of engineering rigor is applied to all assigned tasks. Basic
Qualifications: BS Degree in Computer Science or equivalent and 4
years of relevant experience. Will consider experience in lieu of a
degree. Active Secret Clearance (Required) Experience with
web-based (HTML, CSS, JavaScript) in a web-based environment
Experience in Scrum Methodology or other Agile environments (e.g.,
SAFe, XP) Experience with UI / Development Frameworks (E.g,
AngularJS, Ionic, GWT, SmartGWT, Qt, React, Node.js) Experience
with Automated Testing Tools/Technologies/Concepts (Selenium,
Cucumber, Gherkin, BDD) Experience with Test Driven Development
(TDD) Works well in a team environment and has excellent written
and communication skills DoD 8570 approved security certification
(i.e., Security ) (Will be required 90 days after hire). Preferred
Qualifications: Experience with Web Services Architectures (REST,
SOAP, AWS) Experience with Software CM (e.g., Git, GitHub)
Experience with Continuous Integration / Quality, and DevOps
concepts and tools / technologies (e.g., Ant / Maven, Jenkins,
SonarQube, FishEye, Crucible, Gradle, Junit) Experience with
Security Scanning (HP Fortify, HP WebInspect) Experience with Build
Scripts (e.g., Maven, ANT) Experience with Mobile Application
Development Experience with Agile Management Tools and Concepts
(e.g., VersionOne, JIRA, Rally, etc.) Experience with Web Server
Configuration (e.g., JBOSS, Wildfly, Tomcat) Experience with
Database Development (e.g., Postgres, SQL Server, MySQL, SQLite,
Oracle) 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: March 10, 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.
Keywords: Leidos, El Centro , Application Software Engineer, IT / Software / Systems , San Diego, California
