Linux System Administrator
Location
United States
Posted
5 days ago
Salary
0
Seniority
Junior
Job Description
Linux System Administrator
Intermedia Cloud Communications
• Provision, configure, monitor, and decommission Debian-based virtual machines across Hyper-V, VMware ESXi, and OLVM environments using Cinc (Chef) and Ansible automation. • Perform routine Linux system administration, troubleshooting, and maintenance. • Participate in operating system upgrades and lifecycle management. • Develop, review, and maintain Cinc (Chef) cookbooks, Ansible playbooks, roles, data bags, and environments. • Improve infrastructure automation and configuration consistency. • Onboard servers into internal monitoring systems and Grafana. • Configure SNMP-based monitoring and alerting. • Investigate monitoring alerts and assist in resolving operational issues. • Participate in production monitoring during scheduled shifts. • Assist in operating shared infrastructure services, including: • RabbitMQ • Elasticsearch • Graylog • Grafana • Postfix mail relay clusters • BIND DNS servers • Sentry • Apply operating system and security updates through CI/CD pipelines and unattended upgrades. • Maintain firewall configurations (iptables, IP sets, F5 LTM/GTM). • Assist with TLS certificate lifecycle management using DigiCert and internal Certificate Authorities. • Participate in production incident response, disaster recovery activities, and post-incident reviews. • Help identify root causes and contribute to long-term operational improvements. • Maintain runbooks, operational documentation, knowledge base articles, and SaaS GRID documentation in Confluence. • Participate in infrastructure modernization initiatives, including: • Hypervisor migrations (VMware ESXi and Hyper-V to OLVM) • Debian major-version upgrades • Legacy platform migrations • Data center consolidation and decommissioning
Job Requirements
- Bachelor's degree in Computer Science, Information Technology, or a related technical field, or equivalent practical experience.
- 1–4 years of hands-on Linux systems administration experience (Debian or Ubuntu preferred).
- Solid understanding of Linux fundamentals, including:
- systemd
- networking (VLANs, DNS, NTP)
- filesystems
- user and group management
- LDAP authentication
- Experience with at least one configuration management platform (Ansible or Chef/Cinc).
- Familiarity with virtualization platforms such as Hyper-V, VMware ESXi, or KVM/OLVM.
- Basic Bash scripting skills and the ability to understand and modify existing Python scripts.
- Understanding of web servers and reverse proxies, particularly Nginx.
- Basic knowledge of TLS/SSL certificate management.
- Experience using Git for source control and code reviews.
- Ability to work in production environments while following change management procedures.
- Good written English skills for documentation and collaboration across distributed teams.
Benefits
- Operating System | Debian
- Virtualization | Hyper-V, VMware ESXi, OLVM
- Configuration Management | Cinc (Chef), Ansible
- Web Services | Nginx, Apache
- Containers | Docker
- Messaging | RabbitMQ
- Search & Logging | Elasticsearch, Graylog
- Monitoring | Grafana, Telegraf, SNMP
- Mail | Postfix
- DNS | BIND
- Load Balancing | F5 LTM/GTM, A10
- Security | iptables, IP sets, Qualys, Splunk, Falcon, DigiCert, Internal CA
- Package Repositories | Sonatype Nexus, Aptly, Artifactory
- Databases | Percona MySQL, H2
- CI/CD | TeamCity, GitLab
- Collaboration | Confluence, ServiceNow, Redmine
Related Guides
Related Job Pages
More Full-stack Engineer Jobs
• Lead the design and development of products and solutions for state governments and enterprise customers • Work side-by-side with customer delivery leads, engineers, and UX designers to ensure successful projects delivery and deployments • Translate customer requirements into technical architectures and working implementations • Act as a trusted technical advisor to public sector partners, guiding them through standards adoption and best practices • Build backend software and full-stack web and mobile applications that meet public sector security, privacy, and accessibility standards • Contribute to new and existing Rust codebases that run on backend services, mobile devices, and in the browser • Manage customer deployments and support operations
• Define technical strategy and architecture for public sector deployments, ensuring both technical excellence and alignment with policy and operational needs • Act as the senior technical representative in executive-level customer meetings, bridging the gap between technical details and business or policy outcomes • Lead multiple end-to-end multi-year projects from rapid prototyping to development to operations and maintenance • Architect and build backend systems, full-stack web applications, and mobile solutions with a focus on security, privacy, and accessibility • Translate government requirements into robust, standards-based solutions that integrate with both modern and legacy systems • Mentor and guide forward deployed engineers and delivery teams, setting standards for high-quality engineering and customer collaboration • Identify and drive efficiencies across projects, ensuring knowledge and tooling are shared across teams • Collaborate with platform teams to feed customer insights into SpruceID’s roadmap and contributions to global identity standards
Senior Fullstack Engineer
RavennaAI-powered, Slack-First helpdesk for internal IT and Operations teams
• Design and build production systems • Architect and implement core platform functionality across both frontend and backend systems • Build product features using NextJS, React, and Typescript on the frontend • Take features from idea through implementation to launch based on user feedback • Design and maintain backend services powering the Ravenna platform • Monitor and improve system performance across the stack • Write clean, well-structured, well-tested code • Collaborate with product and design teams to deliver high quality features
Principal Mission Assurance Engineer
KBR, Inc.We deliver science, technology and engineering solutions to governments and companies around the world.
• Assist HON program team with Mission Assurance and Quality Assurance activities for successful program execution • Support internal and external customer meetings Assist HON program team with Mission Assurance and Quality Assurance activities for successful program execution • Identifies and implements mission assurance/quality strategies to improve program performance and customer relationships • Support risk management process including coaching on implementation of mitigation burn-down plans • Support Honeywell’s suppliers to ensure customer requirements are understood and met at the lowest levels • Champion Mission Assurance and Quality Assurance rigor across HON functional groups (e.g., Quality, Engineering, Program Management) as required • Support robust Root Cause Corrective Action (RCCA) development and implementation, and product/process improvements • Support PRB, MRB, and CCB discussions and provide recommendations • Help prepare for and participate in Customer Hardware Acceptance Reviews (HARS)



