Hands-On Cybersecurity Engineer & Technical Lead

Leidos Inc; Bethesda (MD); On-site; USD 154,050 - 278,475; Full time

Benefits offered by this job

Paid time off

11 paid holidays

401K with 6% match

Flexible schedules

Discounted stock purchase plans

Education and training support

Parental paid leave

Job summary

Leidos is seeking a Cyber Security Engineer-Technical Lead in Bethesda, MD to protect customer information systems and networks from cyber threats. The role blends hands‑on engineering (about 75%) with technical leadership, coordinating security efforts across the team in a DevSecOps lifecycle.

You will implement secure architectures, manage firewalls, IDS/IPS, and SIEM tooling, and drive incident response in production environments.

Qualifications

• Experience implementing and managing SIEM tools such as Splunk or similar platforms.
• Experience working with endpoint and network security technologies, including IDS/IPS, HBSS/Trellix, and related defensive security tools.
• Expert with automation (e.g., Ansible, CloudFormation)
• Demonstrated history of personally implementing, troubleshooting, and maintaining security technologies in production environments.
• Proven ability to balance technical leadership responsibilities with significant hands‑on engineering work.

Responsibilities

• Plan, implement, manage, monitor, and upgrade security controls and tools used to protect enterprise systems and networks, while identifying opportunities to automate repeatable operations tasks.
• Design, configure, implement, troubleshoot, and maintain security technologies such as firewalls (security groups), endpoint protection tools (HBSS/Trellix), SIEM platforms (Splunk).
• Formulate systems and methodologies as well as respond to security related events and assist in remediation efforts of cyber security incidents (system and/or network breaches, malware attacks)
• Participate in change management processes to ensure system changes maintain security compliance and do not introduce new vulnerabilities.
• Conduct routine vulnerability scanning and assessment activities, provide formal and informal reports to technical teams, and track remediation efforts to closure.
• Provide technical leadership and subject matter expertise to the security engineering team while coordinating with peer Technical Leads across infrastructure and application domains to ensure alignment of architecture and security controls.
• Serve as the primary technical escalation point for complex or cross-domain security issues while mentoring junior engineers through collaborative troubleshooting and hands‑on technical guidance.

Skills

SIEM (Splunk)

Endpoint security

IDS/IPS

Automation

Security engineering

Threat intelligence

Education

Master's degree + 15+ years experience

Tools

HBSS/Trellix

Splunk

Ansible

CloudFormation

GitHub

GitLab

SonarQube

Job description

Leidos is seeking a Cyber Security Engineer-Technical Lead in Bethesda, MD to protect customer information systems and networks from cyber threats. The role blends hands‑on engineering (about 75%) with technical leadership, coordinating security efforts across the team in a DevSecOps lifecycle.

You will implement secure architectures, manage firewalls, IDS/IPS, and SIEM tooling, and drive incident response in production environments.