L3 Senior Linux Engineer
About the role
The L3 Senior Linux Engineer will join the infrastructure and technical operations team to resolve complex technical escalations, manage and optimize Linux and cloud infrastructure, support web hosting environments, implement automation, and maintain the security and reliability of critical systems. The role involves hands-on Linux system administration, cloud technologies, networking, virtualization, web hosting, security, automation, and infrastructure management. The engineer will also provide technical guidance and mentorship to L1 and L2 support teams, and assist in resolving high-priority infrastructure incidents. Key responsibilities include troubleshooting advanced issues, managing servers and cloud environments, implementing automation, supporting CI/CD pipelines, monitoring infrastructure, and maintaining security controls.
Must have
- 7+ years of experience in Linux system administration, cloud hosting, IT infrastructure, or related fields
- Strong hands-on experience with Linux, particularly Ubuntu, RHEL, and CentOS
- Strong knowledge of Windows Server and virtualization technologies such as VMware, KVM, and Hyper-V
- Experience with at least one major cloud platform: AWS, Azure, or GCP
- Strong understanding of web hosting technologies and platforms
- Proficiency in scripting and automation using Bash, Python, Ansible, Terraform, or PowerShell
- Advanced knowledge of networking and infrastructure technologies
- Experience with monitoring, logging, security, and incident-response tools
- Strong understanding of databases such as MySQL, PostgreSQL, MongoDB, and Redis
- Strong troubleshooting and problem-solving abilities
- Excellent verbal and written communication skills
- Ability to work independently and effectively under pressure
- Willingness to work US Central Time and participate in rotational on-call support
Nice to have
- Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field
- Relevant professional certifications such as: RHCE, AWS Certified Solutions Architect, Microsoft Azure Solutions Architect Expert, Google Cloud Professional Cloud Architect, VMware VCP, Certified Kubernetes Administrator (CKA), Terraform Associate, Cisco CCNP/CCIE, CISSP or CEH
- Experience with Kubernetes and containerized environments
- Experience with CI/CD and DevOps practices
- Experience working with ISO 27001, PCI-DSS, GDPR, or similar compliance standards
- Previous experience training or mentoring technical teams
Technologies
- Ansible
- AWS
- Azure
- Bash
- BGP
- CCNP
- CEH
- CI/CD
- Cisco
- CISSP
- DevOps
- DNS
- ELK Stack
- Firewall
- GCP
- Grafana
- Hyper-V
- IAM
- Infrastructure as Code
- ISO 27001
- Kubernetes
- Linux
- MongoDB
- MySQL
- Nagios
- NGINX
- PCI DSS
- PostgreSQL
- PowerShell
- Prometheus
- Puppet
- Python
- Redis
- RHEL
- SIEM
- Splunk
- SSL
- TCP/IP
- Terraform
- TLS
- Ubuntu
- Virtualization
- VMware
- VPN
- WAF
- Windows
- Windows Server
- Zabbix
Highlights
Candidates must be willing to work US Central Time and participate in rotational shifts and on-call/emergency support. Immediate joiners or those available within 30–60 days are preferred. A hands-on technical assessment may be required as part of the selection process.
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