142K–162K USD / year
Senior IT Systems Engineer
OtherRemote — US
Published on 2026-09-29
These details were extracted automatically from the original listing. They may not be complete or fully up to date — it's worth checking the original job post.
About this role
Horizon3 is seeking a security-minded IT Systems Engineer specializing in networking and security management. The role involves administering identity systems, securing email collaborations, and managing network infrastructure for a remote workforce.
About the company
Horizon3.ai is a technology company specializing in cybersecurity solutions, focusing on automated penetration testing and threat detection for enterprises. They provide a range of services aimed at enhancing security posture and risk management for organizations across various sectors.
The team
Security and IT
Stack
OktaGoogle WorkspaceMicrosoft 365CiscoPalo AltoFortinet
What you'll do
- Administer and secure Okta and authentication policies
- Manage email security platform configurations
- Monitor and respond to incidents in network and email security
- Collaborate with the Help Desk team on escalated issues
- Evaluate improvements for identity architecture and email security
- Maintain network infrastructure and performance monitoring
What we're looking for
- Experience with identity/SSO platforms like Okta
- Knowledge of email security controls (SPF, DKIM, DMARC)
- Hands-on experience with enterprise network infrastructure
- Understanding of network security principles
- Ability to troubleshoot complex connectivity issues
Nice to have
- Relevant certifications (e.g., Security+, CCNA)
- Experience with Zero Trust architecture
- Scripting skills for automation tasks
Benefits
- Equity package in the form of stock options
- Flexible vacation policy
- Health, vision, and dental insurance