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 sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
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!
Your greatest work is ahead!
Leidos Defense Systems is seeking a Mid-Level Defensive Cyber Software Engineer to work with a diverse, highly skilled team to develop unique solutions for Cyber, EW, and PNT threats against US weapon systems. This position will specifically focus on leading and executing the development of network security detection algorithms for tactical edge intrusion detection systems. This position will also focus on vulnerability research and prioritization of software development tasks. This is a full-time position with the Leidos Cyber Electromagnetic Activity (CEMA) team that is based in Huntsville, Alabama.
Primary Responsibilities
-
Developing software and/or techniques in the protection of data, networks and net-centric capabilities, as well as detection of, identification of and response to attacks.
-
Research and development of signature and behavior-based defensive techniques against adversarial attacks on tactical networks.
-
Developing technical solutions that require collaboration with internal experts, deep analyses and understanding of impact on end-product/solution.
-
Developing solutions to technical problems and issues through research and experimentation.
Basic Qualifications
-
Bachelor’s Degree in computer science, computer engineering, or similar degree.
-
Candidate must have the following experience in defensive cybersecurity areas identified above:
-
5+ years of professional development in C, C++, Rust, Go, or similar compiled languages
-
A good understanding of networking – protocols at all layers of the networking stack and network architecture.
-
Experience with Agile development workflows
-
Knowledge of general software development best practices
-
Comfortable with software build systems, such as CMake, Meson, or Bazel
-
Experience with version control tools
-
Comfortable with CI/CD tools such as Jenkins or TeamCity
-
Experience using Wireshark
-
Experience developing cross platform software targeting systems such as Linux, Windows, Embedded devices, and Server-grade hardware
-
US Citizenship required
-
Must be able to obtain and maintain a TS/SCI Clearance
Preferred Qualifications
-
Experience with Git
-
Hands-on experience within a security operations center (SOC).
-
Experience with Network Security Monitoring (NSM)
-
Hands-on experience with blue/purple/red-teaming US DOD systems and/or networks
-
Certifications such as Network+, Security+, CySA+, Linux+
Original Posting:March 28, 2025
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 $85,150.00 - $153,925.00
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.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
_0.png)
