DoD Cybersecurity Engineer: Vulnerability & SIEM Specialist

Sealing Technologies, a Parsons Company; Columbia (MD); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Health, dental, vision insurance

401(k) retirement contributions

Continuing education budgets

Tuition reimbursement

Flexible schedules

Generous vacation policies

Snacks & monthly catered lunches

Company retreats

Job summary

Sealing Technologies, a Parsons Company, is seeking a Cybersecurity Engineer to support a strategic DoD program in Columbia, MD onsite with 15% travel. The role leads vulnerability management, tunes detection capabilities, and performs incident triage to protect mission-critical DoD systems.

The position requires hands-on security engineering across Windows, Linux, and networks, with Python/Bash scripting to automate workflows and mentorship for junior engineers.

Qualifications

• U.S. Citizenship required.
• 5+ years of operational cybersecurity / security engineering experience supporting DoD or federal programs.
• Experience with SIEM platforms and vulnerability assessment tools.
• DoD 8570 IAT Level II certification (Security+ CE or equivalent) or ability to obtain within 6 months of hire.

Responsibilities

• Lead vulnerability management activities across the program platform, including scan scheduling, remediation tracking, and risk reporting.
• Develop and tune SIEM rules, alerts, and correlation logic across program environments to improve detection fidelity.
• Conduct incident triage and initial response across program systems; document findings, perform root cause analysis, and escalate appropriately.
• Apply and maintain STIGs, security baselines, and hardening configurations across Windows, Linux, and network platforms.
• Conduct vulnerability assessments using Nessus, Tenable, ACAS, or equivalent tooling; track remediation across hardware and software components.
• Analyze network traffic, packet captures, and log data across diverse program environments to identify anomalies and potential threats.

Skills

Vulnerability management

SIEM rule development

Incident triage & response

Hardening configurations

Scripting (Python/Bash/PowerShell)

Network traffic analysis

MITRE ATT&CK familiarity

DoD/federal program experience

Education

Bachelor's degree in Cybersecurity / CS / IS

Tools

Splunk

Elastic

Nessus

Tenable

ACAS

PowerShell

Python

Bash

Job description

Sealing Technologies, a Parsons Company, is seeking a Cybersecurity Engineer to support a strategic DoD program in Columbia, MD onsite with 15% travel. The role leads vulnerability management, tunes detection capabilities, and performs incident triage to protect mission-critical DoD systems.

The position requires hands-on security engineering across Windows, Linux, and networks, with Python/Bash scripting to automate workflows and mentorship for junior engineers.