Software Engineer

Leidos Holdings Inc

Huntsville, AL

JOB DETAILS
SALARY
$69,550–$125,725 Per Year
SKILLS
ABET (Accreditation Board for Engineering and Technology), Aerospace and Defense, ArcGIS, Artificial Intelligence (AI), C++ Programming Language, Computer Engineering, Computer Science, Concurrency, Concurrent Programming Language Family, Continuous Deployment/Delivery, Continuous Integration, Cost Engineering, Cross-Functional, Cyberspace, Data Analysis, Data Management, Data Processing, Data Visualization, Electrical Engineering, Geospatial Analysis, High Throughput, Information Technology & Information Systems, Integration Testing, Intelligence Analysis, Internet Security, Large-Scale Systems, Legal, Logistics, Multithreaded Programming, Operational Audit, Operational Support, Performance Analysis, Performance Management, Problem Solving Skills, Python Programming/Scripting Language, Radio Frequency, SQL Databases, Secret Clearance, Software Administration, Software Development, Software Engineering, Spatial Data, Systems Administration/Management, Systems Engineering, Systems Scalability, Team Building, Team Player, Technical Support
LOCATION
Huntsville, AL
POSTED
13 days ago

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to doing the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Your greatest work is ahead!

Leidos Defense Systems is seeking a talented Software Engineer to develop high-performance applications and backend systems supporting advanced sensor and mission systems. This role is ideal for engineers who enjoy building performant software today while growing into broader system-level and real-time development over time. We have offices across the United States engaging in the defense, space, cyber and commercial fields, we provide responsive, cost-effective engineering, scientific and IT solutions.

If this sounds like the kind of environment where you can thrive, keep reading!

Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world's toughest security challenges for customers with "can't fail" missions. To explore and learn more, click here!

Are you ready to make an impact? Share your resume with us today!

Primary Responsibilities:

Candidate will support advanced technology radar programs develop user-facing and backend software that interfaces with high-performance sensor and data processing systems. These applications are tightly coupled with real-time data pipelines and hardware systems, requiring strong understanding of performance, data flow, and system behavior.

Engineers in this role are expected to grow into broader system ownership over time, contributing across application, middleware, and real-time components as needed.

  • Design, develop, and maintain C++-based applications and backend systems
  • Build software supporting data processing, visualization, and system control
  • Analyze and improve performance, latency, and scalability of software systems
  • Collaborate with cross-functional teams including software, systems, and hardware engineers
  • Support integration, testing, and deployment of software in operational environments
  • Contribute to evolving system capabilities, including future real-time and high-throughput processing components
  • Contribute to systems and features end-to-end, from development through deployment and improvement

Basic Qualifications:

Candidate must possess a Bachelor's degree or higher in Electrical Engineering, Computer Engineering, or Computer Science degree from an ABET-accredited school with a strong demonstration of the skills listed below.

Candidate must have 2-4 years of experience in software development.

Candidate must have excellent teamwork skills and possess strong fundamentals in the following:

  • Proficiency in modern C++
  • Experience with Linux-based systems
  • Experience with higher-level user application development
  • Experience working in performance-sensitive, distributed, or systems-oriented applications
  • Experience with multithreaded or concurrent programming
  • Problem-solving skills and ability to work effectively in a team environment
  • Must have the ability to obtain and maintain a secret clearance.

Preferred Qualifications:

Candidate with additional skills in the following is preferred:

  • Experience with messaging frameworks (e.g., ZeroMQ or similar)
  • Experience with containerization and CI/CD pipelines
  • Exposure to radar, RF, or sensor systems
  • Experience with Python
  • Experience with Flask, Angular TS, and SCSS
  • Experience with SQL-based Databases
  • Familiarity with mapping / GIS frameworks (ArcGIS, Openlayers, Mapproxy, Worldwind, etc)
  • Familiarity with AI coding assistants (e.g. Claude Code)

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:

July 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 $69,550.00 - $125,725.00

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

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Leidos Holdings Inc

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions. We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.
COMPANY SIZE
10,000 employees or more
INDUSTRY
Computer/IT Services
FOUNDED
2013
WEBSITE
https://jobs.saic.com/