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Defensive Cyber Software Developer with Security Clearance

OASYS, INC.
Lawton, OK Full Time
POSTED ON 11/9/2026
AVAILABLE BEFORE 12/3/2026
Defensive Cyber Software Developer OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Defensive Cyber Software Developer position to join a talented multi-contractor team in Lawton, Oklahoma. With several offices across the Unites States engaging in the defense, cyber, and commercial fields, OASYS, INC. provides responsive, cost-effective engineering, scientific, and IT solutions. Position Description: The 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. The products under development are responsible for alerting a varied array of customers of potential cyber and EW attacks by creative and high skilled Adversaries. With that problem set in mind, these products must be developed by equally creative minds that enjoy digging, researching, programming, questioning, and generally learning all they can to proactively replicate the attacks of the Adversaries. Primary Responsibilities: Assisting the team in working on customer-sponsored research and development projects developing defensive cyber security solutions for military weapon systems.

Building simulations to emulate threat-realistic CEMA environments.

Developing offensive and defensive cyber tools focused on Command and Control (C2) and Radar systems.

Researching current and future cyber security threats against military systems.

Qualifications: Bachelor's Degree in computer science, computer engineering, cyber engineering or similar degree

Minimum 2 years of professional development in C, C , Rust, Go, or similar compiled languages

Minimum 2 years of experience (professional or not) with Python and various scripting languages.

Experience using Linux at a comfortable daily use level

Experience with version control tools

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

Must be a US Citizen and be able to obtain and maintain a TS/SCI security clearance.

Ability to travel to customer sites up to 20% of time

Preferred Qualifications: Experience using Wireshark

Firm understanding of Cybersecurity

Basic understanding of UI/UX principles along with familiarity of web development

Certifications such as Network , Security , CySA , Linux

Required Education: Candidates should possess a bachelor's degree, preferably in Computer or Cyber Engineering, Computer Science, Math, Physics, or other STEM discipline, however, years of experience may be substituted for a degree. Eligibility: Candidates must have the ability to obtain and maintain a DoD Secret Clearance. An Active Clearance is highly desired. About OASYS, INC.: Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs. Benefits: OASYS, INC. offers a robust benefit plan to include: BC/BS of Alabama Heath & Dental, VSP Vision, Employee Stock Ownership Plan (ESOP), 401-K with Matching, Flexible Spending Account, Tuition Reimbursement, Holidays, Vacation, Short-term/Long-term Disability. www.oasys-incorporated.com

Salary.com Estimation for Defensive Cyber Software Developer with Security Clearance in Lawton, OK
$66,998 to $82,456
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