Telephony Systems Administrator overseeing daily operations of telephony systems for call center in Phoenix, AZ. Liaising with teams to ensure high service levels for customers.
About the role
- Systems Administrator ensuring business-critical systems remain reliable and compliant across hybrid infrastructure. Empowering teams through automation, monitoring, and incident response in dynamic work environment.
Responsibilities
- Administer Windows Server (2016–2022): AD, GPO, DNS/DHCP, IIS; manage patching and hardening
- Administer AlmaLinux/RHEL: systemd, SELinux basics, users/groups, storage, networking, patching
- Operate AWS: EC2, S3, EBS, ELB/ALB, VPC (subnets, routing, SGs/NACLs), IAM, CloudWatch (logs/metrics/alarms), backups/DR
- Build automation and configuration with Puppet; provision infrastructure with Terraform
- Monitor availability and performance with Site24x7; create/run runbooks; perform RCA and post-incident reviews
- Follow PCI DSS and SOC 2 controls: least privilege, change management, patch cadence, logging, access reviews, evidence collection
- Support application rollouts across dev/test/prod; participate in capacity planning and cost optimization in AWS
- Maintain documentation (standards, diagrams, procedures) and contribute to continuous improvement
- Participate in on-call rotation (approximately 1 week every 3 weeks)
Requirements
- 3–5 years in production systems administration across Windows and Linux
- 2+ years hands-on with AWS operations and security best practices
- Proficiency with PowerShell and Bash; Git-based workflows
- Practical experience with Puppet and Terraform
- Strong troubleshooting across OS, network, and cloud layers; understanding of VPNs, routing, load balancers, TLS
- Familiarity with ITSM and change workflows using Jira and ServiceNow
- Security mindset and experience operating under PCI and SOC 2
- Degree in Computer Science/IT or equivalent practical experience
- Desired Certifications: AWS Associate (SysOps or Solutions Architect), RHCSA/RHCE, Microsoft (Windows Server/AD)
- The following are considered a strong asset: Scripting with Python; CI/CD exposure; Web stacks (IIS, Nginx/Apache), RDS basics, container fundamentals; VMware/Hyper‑V experience; backup/restore tooling knowledge
Benefits
- Thrive in an award-winning, innovation-driven culture that champions growth, embraces diversity, and fosters inclusion for all. See our awards →
- Earn competitive pay with annual performance-based bonuses that recognize your impact
- Invest in your future with our 401(k) plan featuring company matching
- Stay healthy with comprehensive medical, dental, and vision coverage, plus HSA and FSA options
- Recharge with paid vacation and sick days — and a paid day off for your birthday
- Make an impact with two paid volunteer days to give back to your community
- Advance your skills with free access to LinkedIn Learning and our education reimbursement program
- Prioritize your mental health with a free premium Headspace membership
- Stay active with our on-site fitness center
- Refuel at fully stocked refreshment stations with complimentary drinks and snacks
- Enjoy exclusive perks with access to “Tickets at Work” discounts and memberships
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