System Administrator

The Role: Halo Security is seeking a skilled System Administrator / Cloud Operations Specialist to manage and optimize our infrastructure, ensuring the seamless operation of critical systems. The ideal candidate will have extensive experience with AWS, Linux management, and automation, along with a proven ability to troubleshoot and resolve complex production issues. You'll work in a hybrid model, with a combination of remote work and regular in-office days at our Scottsdale, Arizona location to collaborate with the team in person.

Responsibilities: Maintain and monitor the production environment, ensuring uptime and reliability. Troubleshoot and resolve technical issues in case of system failures. Scale infrastructure by adding servers and resources as needed. Develop, update, and enhance automation scripts and workflows. Create and maintain comprehensive documentation, including runbooks and SOPs. Debug complex problems in the production environment and deliver technical solutions. Deploy and maintain critical applications and services. Install and manage colocation hardware and ISP cross-connects.

Technical Skills: AWS Cloud Management Compute: EC2, Application Load Balancers (ALB).Storage: S3, Elastic File System (EFS), Backup services. Database: RDS, DynamoDB, Elasti Cache. Networking: Virtual Private Cloud (VPC), Cloud Front, Route 53.Security: IAM, Certificate Manager, Web Application Firewall (WAF).Monitoring and Management: Cloud Watch. Linux Administration CentOS and Amazon Linux. Configuration and management using Ansible. System Patching and maintenance. Scripting: Proficient in Bash and Python for automation tasks. Colocation Services Installation and maintenance of hardware in colocation facilities. Management of ISP cross-connects.

Experience: 5+ years in System Administration, Cloud Operations, or Dev Ops.

Skills: Strong problem-solving abilities, technical troubleshooting, and a deep understanding of Linux systems. Proven ability to manage and optimize production environments under pressure. Flexibility: Willing to work rotational shifts, including weekends.

Location: Located near Scottsdale, Arizona We Offer Competitive salary and benefits Hybrid work model: Work from home some days, with regular in-office collaboration days in Scottsdale, Arizona. Flexible PTO: Enjoy freedom, independence, and flexibility with your time off. Tools and support: Get everything you need to succeed—both at home and in the office. Collaborative small team environment: Make a meaningful impact, take ownership of your work, and move quickly without layers of bureaucracy. About Halo Security At Halo Security, a Trusted Site brand, our mission is to help organizations protect data from external attackers and earn trust with their customers. Our attack surface management, penetration testing and vulnerability scanning solutions help thousands of organizations secure their most critical assets.