Senior IT Systems Engineer: Identity & Network Security

NightDragon Acquisition Corp.; United States; Remote; USD 142,000 - 162,000; Full time

Benefits offered by this job

Inclusive team

Growth opportunities

Innovative culture

Hybrid & Remote work

Competitive compensation

Job summary

Horizon3 is a fully remote cybersecurity company delivering NodeZero autonomous pentests and security assessments across diverse environments. We seek a security-minded IT Systems Engineer who will own identity, email, and network security for a distributed workforce, collaborat­ing with Security and Help Desk teams to ensure standards are met.

The role blends ~60% security/identity/email infrastructure with ~40% network engineering, including design, monitoring, incident response, and

Qualifications

• Must have hands-on experience administering an identity/SSO platform (e.g., Okta) in a production environment.

Responsibilities

• Administer and secure Okta (or equivalent IdP/SSO), managing authentication policies, access provisioning, and integration with downstream applications

Skills

Identity/SSO administration

Email security controls

Enterprise network infrastructure

Networking and security monitoring

Remote-first workforce experience

Scripting (Python/PowerShell)

Tools

Okta

Google Workspace

Microsoft 365

Proofpoint/Mimecast

Palo Alto

Fortinet

Cisco Meraki

VPN

Network monitoring tools

Job description

Horizon3 is a fully remote cybersecurity company delivering NodeZero autonomous pentests and security assessments across diverse environments. We seek a security-minded IT Systems Engineer who will own identity, email, and network security for a distributed workforce, collaborat­ing with Security and Help Desk teams to ensure standards are met.

The role blends ~60% security/identity/email infrastructure with ~40% network engineering, including design, monitoring, incident response, and