Defensive Cyber Software Developer

Leidos; White Wolf Bridge (OK); Presencial; USD 87 000 - 157 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Paid Time Off

11 paid Holidays

401K with company match

Flexible Schedules

Resumo da oferta

Leidos in Lawton, OK, is seeking a Mid-Level Defensive Cyber Software Developer to join the CEMA team. You will design and implement software protecting data and networks, and you’ll research defensive techniques against adversaries in tactical environments.

The role requires a TS/SCI clearance eligibility and ability to travel up to 20%. Collaborate across security engineering, CN0, and mission software teams to deliver robust cyber defenses for national security missions, while advancing your

Qualificações

• ABET-accredited Bachelor's in CS/CE/Cyber Eng.
• 4+ years in C, C++, Rust, or Go.
• 2+ years Python and Bash.
• Familiar with CI/CD and build systems.
• Experience with version control and UI/UX development.
• Knowledge of networking protocols and Linux.

Responsabilidades

• Develop software for data and network protection and attack detection.
• Research signature and behavior-based defensive techniques.
• Collaborate with internal experts to impact end-product.
• Travel up to 20%.

Conhecimentos

C/C++

Rust/Go

Python/Bash

Linux

CI/CD basics

Formação académica

ABET-accredited Bachelor's in CS/CE/Cyber Eng.

Ferramentas

CMake

Jenkins

Jira

Descrição da oferta de emprego

Leidos has a new and exciting opportunity for a Mid-Level Defensive Cyber Software Developer in our INTEL Sector's 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! The Mid-Level Defensive Cyber Software Developer will work with a diverse, highly skilled team to develop unique solutions for Cyber, EW, and PNT threats against US weapon systems. Our products are responsible for alerting our varied array of customers of potential cyber and EW attacks by creative Adversaries highly skilled at attacking. With that problem set in mind, our products need to be developed by equally creative minds that enjoy digging, researching, programming, questioning, and generally learning all they can do to do those exact things the Adversaries would.

This is a full-time position with the Leidos Cyber Electromagnetic Activity (CEMA) team that is based in Lawton, OK, and will require the candidate to be able to obtain and maintain a TS/SCI Clearance.

Primary Responsibilities:

• Developing software and/or techniques in the protection of data and network capabilities, as well as detection of, identification of and response to attacks, including working toward the most effective methods to present those findings to the user.
• 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.

Basic Qualifications:

• Bachelor’s Degree in computer science, computer engineering, cyber engineering, or similar degree from an ABET-accredited program
• Minimum 4+ years of professional development in C, C++, Rust, Go, or similar compiled languages
• Minimum 2+ years of professional experience with Python and Bash or a similar scripting language
• Comfortable with software build systems, such as CMake, Meson, or Bazel
• Experience with version control tools
• Experience with UI/UX development
• Familiarity with an iterative software design process, such as Agile and/or Continuous Delivery, as well as common tooling associated with the process, such as Jira and Jenkins
• A good understanding of networking – protocols at all layers of the networking stack and network architecture
• Knowledge of general software development best practices
• Professional experience in Linux, up to and included basic administration
• Must be a US CITIZEN and able to obtain and maintain a TS/SCI Clearance
• Ability to travel to customer sites up to 20% of time

Preferred Qualifications:

• Experience using Wireshark
• Firm Grasp of Cybersecurity as well as recent tracking of cyber events
• Certifications such as Network+, Security+, CySA+, Linux+

Original Posting: October 6, 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.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.