Cyber Software Engineer, Junior — AI & Network Security R&D

CACI International Inc.; Florham Park (NJ); On-site; USD 67,000 - 133,000; Full time

Job summary

CACI International Inc. seeks a Junior Cyber Software Engineer to join the Cyber Science & Technology team in Florham Park, NJ.

You will contribute to mission-driven R&D, supporting DoD and IC programs through software design, integration, and demonstrations. You will prototype cyber tools, apply Python and ML frameworks, and work with multidisciplinary teams to transition prototypes into operational workflows.

Qualifications

• Hands-on experience in software design & development, cybersecurity R&D, systems analysis, or capability development.
• Strong background in networking, distributed/autonomous systems, or cyber operations concepts.
• Proficiency in Python and ML frameworks such as PyTorch, TensorFlow, NumPy, SciPy, or scikit-learn.
• Ability to work in fast-moving, multidisciplinary, research-oriented environments.
• Experience with ML in perception, planning or control of autonomous systems.
• Strong knowledge of algorithms and data structures.
• Understanding TCP/IP and TLS networking concepts.

Responsibilities

• Support integration and demonstration of experimental capabilities for customer engagements.
• 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.
• Assist in the design and development of innovative cyber tools, techniques, and prototypes that advance next‑generation cybersecurity, autonomous systems, and networking capabilities.

Skills

Python

Machine Learning

Algorithms & Data Structures

Networking concepts

Cybersecurity R&D

Job description

CACI International Inc. seeks a Junior Cyber Software Engineer to join the Cyber Science & Technology team in Florham Park, NJ.

You will contribute to mission-driven R&D, supporting DoD and IC programs through software design, integration, and demonstrations. You will prototype cyber tools, apply Python and ML frameworks, and work with multidisciplinary teams to transition prototypes into operational workflows.