Cyber Software Engineer

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

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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. 
 

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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 time off benefit and have access to robust learning resources to make your