Job Title: Cyber Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity: Join the Cyber Science & Technology (CS&T) team supporting advanced research, development, experimentation, and operational support to tackle challenges in networking and cybersecurity.
CS&T engineers help design, prototype, and transition cutting‑ edge capabilities that enhance national security missions. You will contribute to mission ‑ driven R&D, including customer ‑aligned demonstrations, internal IRAD efforts, and cyber capability development supporting programs and customers across the DoD and IC. Responsibilities : • Assist in the design and development of innovative cyber tools, techniques, and prototypes that advance next‑ generation cybersecurity and networking capabilities.
• Support integration and demonstration of experimental capabilities for customer engagements, including planning and execution of capability demonstrations. • Implement and evaluate algorithms, automation approaches, analytics, and modeling techniques relevant to cyber missions. • Assist with the design and implementation of realistic cyber ‑ physical test environments to measure system resilience, performance, and operational utility.
• Collaborate with software engineers, systems engineers, data scientists, and mission operators to transition prototypes into operational workflows. • Prepare technical documentation, status reports, experiment plans, and demonstration materials for internal and external stakeholders. • Participate in technical reviews, program planning sessions, and cross ‑organizational coordination with CS&T leadership.
• Support staffing, capability planning, and technical assessments tied to program requirements. Qualifications: Required: • Active Secret clearance • Bachelor's degree in computer science or related field with a minimum of 5 years' experience. • Hands‑ on experience in software design & development, cybersecurity R&D, systems analysis, or capability development.
• Strong background in networking, distributed systems, or cyber operations concepts. • High proficiency in Python and C/C++. • Familiarity with networking and cyberspace modeling & simulation capabilities. • Ability to work in research ‑oriented, fast‑moving environments with multidisciplinary teams. • Strong Algorithms & Data Structures knowledge • Understanding of networking concepts and protocols.
(E.g., TCP/IP, TLS) • Systems engineering experience including profiling and code optimization (CPU, memory, latency) • Experience with Python – incl. Pytorch, tensorflow, sklearn, scipy, virtual environment management • Experience with network programing and protocol: Socket programing such as TCP/UDP, routing protocols, L2/L3 tunneling. Desired: • Experience supporting government research-oriented customers or service cyber components.
• Experience developing cyber‑physical test ranges, simulation environments, or digital twins. • Familiarity with orchestration frameworks, cloud environments, or advanced analytics. • Experience in computer vision, machine learning, mathematical optimization, understanding of video encoding • Experience working on multithreaded, distributed high-performance systems • Active TS/SCI clearance.
- What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day.
You’ll have the autonomy to take the time you need through a unique flexible