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Cybersecurity Engineer

Castalia Systems6 months ago
Key Largo, FL, United States
On-site
Full-time
Junior Level (1-3 years)
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Job Description

Job Type: Full‑Time

Workplace Type: Onsite in Largo, FL

Clearance: Active TS/SCI clearance; must be a U.S. Citizen

Benefits: Medical, dental and vision coverage; 401(k) matching; generous PTO; paid holidays; professional training opportunities; pet insurance.

Job Summary

Castalia Systems is currently searching for a Cybersecurity Engineer to work within the Security Engineering domain. The role operates daily within a custom, air‑gapped Department of Defense IT network to perform advanced support and direct deployment of new capabilities at a sustained rate.

Responsibilities

  • Create and present materials to convey concepts and ideas to a wide range of audiences.
  • Work primarily onsite in a closed area environment with occasional off‑site opportunities.
  • Create, follow, and update system documentation, schematics, operational guides, and procedures.
  • Interface with other teams to help define, determine, and implement cyber risk posture, cyber risk mitigation, and information assurance throughout the enterprise IT service portfolio at a sustained level.

Required Qualifications

  • Degree in STEM or equivalent; minimum 8 years of relevant experience, or an advanced degree with 5 years of experience, or 12 years of experience without a degree.
  • Solid background in Systems Administration using Linux and Windows desktop/server operating systems (Windows 11/Server 2022/RHEL).
  • Active DoD 8570 IAT Level II certification (e.g., CISSP, Security+), with the ability to maintain it.
  • Proficient knowledge of Enterprise Identity Management applications and design including LDAP (Active Directory) and PKI.
  • Experience with VMware products (vSphere, vCenter, ESXi) and virtualization implementations.

Desired Qualifications

  • Broad understanding of traditional and current on‑prem enterprise IT systems and technologies and their impact on security for ICAM, secure enterprise messaging, enterprise logging ingest, cyber situational awareness and protection, and endpoint detection and response.
  • Experience with computing hardware and software platforms, including servers, workstations, and supporting various COTS software applications.
  • Experience maintaining Windows servers and troubleshooting software applications.
  • Experience with custom software applications.
  • Experience with enterprise firewalls, including firewall policies/rulesets.
  • Understanding of basic network engineering fundamentals (OSI layers, IP addressing, sub‑netting, TCP/IP stack, VLANs, well‑known ports and protocols).
  • Knowledge and experience leading or contributing to integration efforts involving Cybersecurity, Risk Management Framework, or Information Assurance.
  • Knowledge of scanning hardware/software for compliance and vulnerabilities using industry tools such as ACAS.
  • Understanding of configuring and troubleshooting anti‑virus applications such as Trellix.
  • Sound foundation in Data Management and Configuration Management principles, processes, and concepts.
  • Knowledge of Zero Trust principles.
  • Experience configuring and troubleshooting SIEM tools (e.g., Splunk).
  • Experience with command‑line interfaces and scripting (PowerShell, Bash, etc.).
  • Experience with Agile project methodologies and Jira workflows.

Physical Requirements / Work Environment

  • Normal office environment.
  • Up to 10% travel may be required.

Equal Employment Opportunity

Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, ancestry, physical or mental disability, veteran status, marital status, HIV‑positive status, or any other protected category.