Senior Systems Administration
USA:TX:Dallas / One AT&T Plaza (208 S Akard - Whitacre Tower) - Adm:208 S Akard St, United States
USD 106K-178K Senior-level Full Time
Tasks
- Administer DNS records for email delivery
- Analyze problems and identify root causes
- Collaborate with security teams to mitigate vulnerabilities
- Conduct hardware and software audits
- Configure SMTP routing and mail flow policies
- Develop and maintain automation scripts
- Enforce enterprise email policies using ProofPoint Services
- Enforce secure mail transport using TLS
- Ensure high availability and system performance
- Implement anti spam anti virus and content filtering
- Implement security, compliance, and auditing
- Improve configuration management and maintenance workflows
- Install configure and patch Linux servers
- Maintain and troubleshoot SMTP mail queues
- Manage TLS certificates
- Manage and monitor backups
- Manage enterprise email transport systems
- Manage vendors for defect resolution and enhancements
- Monitor inbound and outbound email traffic
- Monitor system availability and troubleshoot incidents
- Plan capacity and support operational readiness and acceptance testing
Perks/Benefits
- 401k plan
- Adoption reimbursement
- Disability benefits
- Employee assistance program
- Employee discounts
- Employee wellness programs
- Life and accidental death insurance
- Medical, dental & vision coverage
- Paid caregiver leave
- Paid parental leave
- Paid time off
- Tuition assistance programs
- Tuition reimbursement
Skills/Tech-stack
Acceptance Testing | Anti-spam | Anti-virus | Automation | Backup monitoring | Bash | Capacity Planning | Certificate management | Cloud Computing | Configuration Management | Content Filtering | DNS | ESMTP | IMAP | Kubernetes | Linux | MX Records | Operational Acceptance Testing | Operational Readiness | Operational acceptance | Operational readiness testing | POP3 | Perl | Postfix | Proofpoint | Readiness Testing | SMTP | SSH | SSL/TLS | Sendmail | TCP/IP | TLS | TLS encryption | Unix
Education
Bachelor of Arts | Bachelor of Engineering | Bachelor of Science
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