Cyber Software Engineer, Junior

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

Job Title: Cyber Software Engineer, JuniorJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *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: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.Assist in the design and development of innovative cyber tools, techniques, and prototypes that advance next‑generation cybersecurity, autonomous systems, and networking capabilities.Qualifications:Required :Hands‑on experience in software design & development, cybersecurity R&D, systems analysis, or capability development.Strong background in networking, distributed systems, autonomous systems, or cyber operations concepts.Proficiency in Python and machine learning frameworks like PyTorch, Tensorflow, numpy, scipy or sklearn.Ability to work in research‑oriented, fast‑moving environments with multidisciplinary teams.Experience with machine learning in perception, planning or control of autonomous systems.Strong Algorithms & Data Structures knowledgeUnderstanding of networking concepts and protocols. (E.g., TCP/IP, TLS)U.S. citizenship with ability to obtain and maintain a security clearance Desired :Experience supporting government research-oriented customers or service cyber components. • Experience developing algorithms for embedded systems and platforms. • Experience in computer vision, machine learning, mathematical optimization, understanding of video encodingExperience working on multithreaded and distributed systemsActive Secret, TS, or 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 time off benefit and have access to robust learning resources to make your ambitions a reality.A focus on continuous growth.Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.Pay Range :There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.The proposed salary range for this position is:$66,700 - $133,300CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.