Leidos

Builds technology for defense and civil agencies

Software Developer

Backend EngineeringPosted on Nov 10

Full-timeColorado Springs, CO, USA$87.1k - $157.4kIn-person

About the Job

Requirements

A bachelor's degree in software development or a related discipline and 4 or more years of relevant experience are required; additional related experience, training, and/or certifications may substitute for degree requirements.
U.S. citizenship and an active Department of Defense Secret security clearance are required.
Expertise in C++ and Java programming is required.
Experience developing microservices and containerized environments is required.
Familiarity with Agile software development processes is required.
Ability to work independently and collaboratively within engineering teams is required.

Responsibilities

Design and implement containerized environments for Java and C++ applications.
Develop mission-critical software supporting missile defense systems.
Communicate and document technical solutions for integrated engineering teams.
Stay updated on state-of-the-art programming techniques and technologies.
Conduct software design and code reviews to ensure product quality.
Collaborate with Systems Engineering teams to synchronize, schedule, and demonstrate capabilities to customers.
Manage regression coding and deployment delays with third-party contractors and stakeholders.
Perform trade studies, systems engineering, model-based systems engineering, portfolio analysis, software development demonstrations, and product testing and deployment to Cheyenne Mountain.

Desired Qualifications

A master's degree in an associated field is preferred.
Effective communication skills and experience managing multiple tasks are preferred.
Experience with FORTRAN is preferred.
Experience with missile warning and missile defense is preferred.
Understanding of missile warning message types is preferred.

POSITION: Software Developer

Location: Colorado Springs, CO

Make an Impact with Leidos!

Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile Defense mission areas.

Your Greatest Work is Ahead!

This Software Developer role includes trade studies, system engineering, model-based system engineering, portfolio analysis, software development demonstration and product testing and deployment to Cheyenne Mountain. Leidos is focused on finding the best people, processes, and tools that will provide solutions in data integration and fusion, data analytics, data mining, predictive analytics, data visualization, and decision support tools. This position will report directly to the Program Manager.

Primary Responsibilities:

Design and implement containerized environments for Java and C++ applications.
Develop mission-critical software supporting missile defense systems.
Communicate and document technical solutions for integrated engineering teams in a fast-paced environment.
Stay updated on state-of-the-art programming techniques and technologies.
Conduct software design and code reviews to ensure product quality.
Collaborate with System Engineering teams to synchronize, schedule, and demonstrate capabilities to customers.
Manage regression coding and deployment delays with third-party contractors and stakeholders.

Required Qualifications:

Bachelor’s degree in Software development or related discipline with 4+ years of relevant experience. (Additional related experience, training, and/or certifications may substitute degree requirements)
US Citizen; Currently possess an active DoD Secret security clearance.
Expertise in C++ and Java programming.
Experience in developing micro-services and containerized environments.
Strong ability to work independently and collaboratively within engineering teams.
Familiarity with Agile software development processes.

Preferred Qualifications:

Master's degree in associated field
Effective communication skills and experience managing multiple tasks.
Experience in FORTRAN
Experience with missile warning and missile defense
Understanding of missile warning message types

AMSOPP1

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:

November 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.

About the Company

Leidos

Builds technology for defense and civil agencies

Leidos develops technology and runs services for defense, intelligence and civilian agencies, as well as healthcare and commercial customers. It combines software and engineering work with systems integration, building secure networks and equipment used in demanding operations. Its portfolio includes medical services, energy infrastructure design and technology that supports military missions, linking specialist businesses under one parent. Customers pay through contracts for delivered systems and services, with payment tied to labor, costs or agreed project milestones. Leidos traces its roots to a company founded in 1969 and is headquartered in Reston, Virginia.

Company size: 10,001+
Company stage: IPO
Headquarters: Reston, VA
Founded: 1969

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