Cyber Security Engineer, Jr.

CACI is hiring a junior Cyber Security Engineer to design, implement, and remediate technical cyber controls across DoD contractor and commercial environments. The role focuses on Linux hardening, secure Python coding, compliance with NIST standards, vulnerability assessment, security monitoring, documentation, and collaboration with development teams.

Tags

Consulting

Human Resources

Recruiting

Staffing Agency

Insider Connection @Dice

2 email credits available today

Beyond your network

Kritika Rathore

HR Manager

From your previous company

Find More Connections

from your School

Responsibilities

Design, develop, and implement technical cyber controls for security applications and infrastructure

Harden Linux servers (RHEL-family, Alma Linux, Ubuntu, Kali) using SELinux, firewalled, least privilege, and shell scripting

Apply secure coding practices in Python, including input allow listing, secrets management, and constant-time authentication checks

Prepare design alternatives, deployment requirements, and testing approaches for security applications

Assess and remediate controls derived from NIST SP 800-53 and NIST SP 800-171; track remediation through POA&Ms

Conduct vulnerability assessments using Tenable Nessus and prioritize findings by CVSS score and business risk

Monitor and investigate security alerts across Splunk, Elastic, Lima Charlie, and Sentinel One; escalate confirmed threats

Author technical documentation, including POA&Ms, design specifications, deployment instructions, and testing plans

Collaborate with development teams to integrate security controls and requirements into new and existing applications

Research and configure cyber controls to align with CIS Benchmarks, DISA STIG, and FIPS 140-2 guidelines

Benefits

A culture of integrity.

An environment of trust.

A unique flexible time off benefit

Access to robust learning resources

Healthcare benefits

Wellness benefits

Financial benefits

Retirement benefits

Family support

Continuing education

Time off benefits

Dice is the go-to career marketplace for tech professionals.

Centennial, Colorado, USA

https://www.or-quest.nl/

Growth Stage

Leadership Team

Daniel Hinck

Client Success Partner

Kalyn Thorne

Client Success Partner - Enterprise

Recent News

WebProNews

68% of Tech Pros Distrust AI Hiring, Dice Study Shows

2025-08-25

PC Gamer

'It's the definition of insanity here': The Battlefield subreddit's good vibes nosedive into outrage after DICE announces there'll be no class weapon restrictions in Battlefield 6

2025-05-23

Business Insider

I'm the president of a tech career website and have over 25 years of experience. Here are 5 qualities that can get you promoted faster.

2025-04-21

Qualifications

Minimum Clearance Required to Start: Top Secret

Technical cyber controls design and implementation

Linux hardening and systems-level configuration tuning

Secure coding practices in Python and Flask (REST APIs)

Experience with NIST SP 800-53, NIST SP 800-171, NIST RMF, CMMC, POA&Ms, DoD requirements

Familiarity with CIS Benchmarks, DISA STIG, FIPS 140-2

Vulnerability assessment tools: Tenable Nessus, Splunk, Elastic, SentinelOne, Wireshark, Kali Linux

Bash and shell scripting, cron automation, PowerShell

Strong professional documentation and communication skills

Required skills

Cybersecurity Controls Design and Implementation, Linux Hardening, Secure Coding, Python, Flask REST APIs, NIST SP 800-53 and NIST SP 800-171, NIST Risk Management Framework, CMMC, Tenable Nessus, Splunk, Bash and Shell Scripting, PowerShell

Experience

Entry level