Remote - Linux Systems Administrator

About World Business Lenders (www.wbl.com) World Business Lenders (WBL) is proud to offer short-term, real estate-backed commercial loans to a diverse range of small and medium-sized businesses across the United States, especially those who may find it challenging to secure traditional financing.

Typically, the work schedule is from 9:00am to 6:00pm Eastern Time, Monday through Friday, though there might be times when additional hours are needed to meet business demands.

We’re looking for someone with strong communication skills in both English, both spoken and written.

• Please note that all resumes should be submitted in English.

We are seeking a Linux System Administrator who will be responsible for installing, configuring, securing, and maintaining the organization's Linux-based servers and associated infrastructure within an Azure Cloud environment. This position ensures that critical systems remain reliable, efficient, and recoverable, allowing business applications and services to operate seamlessly and securely.

Key Responsibilities

System Installation, Configuration & Maintenance

• Install, configure, and maintain Linux servers (physical and virtual) in production, test, and development environments.
• Apply OS patches, kernel updates, and software upgrades in a controlled, documented manner.
• Configure and manage key system services (e.g., SSH, web, database, cron, logging) according to standards and application requirements.
• Maintain accurate system documentation, including build sheets, runbooks, and configuration records.

Availability, Performance & Monitoring

• Monitor system health, capacity, and performance using standard tools and dashboards; proactively address emerging issues.
• Troubleshoot and resolve OS‑level, hardware, and basic network issues impacting Linux servers.
• Implement and maintain backup and recovery procedures; regularly test restores for critical systems and data.

Security & Compliance

• Harden Linux systems by configuring firewalls, access controls, logging, and OS security settings aligned with company policies.
• Manage user and group accounts, permissions, and sudo access to enforce least‑privilege principles.
• Apply security patches promptly, monitor logs for suspicious activity, and support incident investigation as needed.

Automation, Scripting & Standards

• Develop and maintain shell scripts or simple automation to streamline routine administration tasks (e.g., deployments, checks, housekeeping).
• Contribute to standard operating procedures and configuration baselines for Linux systems.
• Support use of configuration management or orchestration tools where in place (e.g., Ansible, similar).

Requirements

Required Education

• A Bachelor’s degree in Computer Science, Information Systems, or a related field is preferred — but we also highly value equivalent hands-on experience!

Required Experience

• 3 to 5 years of hands‑on experience administering Linux servers in a production environment (e.g., RHEL, CentOS, Rocky, Ubuntu).
• Strong knowledge of Linux command line, system services, filesystems, and package management.
• Experience with system monitoring tools and log analysis for troubleshooting performance and availability issues.
• Solid understanding of TCP/IP networking fundamentals as they relate to Linux servers (DNS, routing basics, firewalls).
• Demonstrated experience with user and permission management, SSH, sudo, and basic security hardening.
• Scripting proficiency in Bash; exposure to another scripting language (e.g., Python) is a plus.

Preferred Background / Industry Experience

• Previous experience as a system administrator within a cloud environment, including proficiency with container infrastructure such as Docker.

Key Soft Skills

• Collaborates effectively across teams, partnering with application, database, networking, and security groups to ensure environments are delivered and supported in alignment with business needs.
• Provides dependable Tier 2/3 support, approaching Linux‑related incidents and service requests with ownership, professionalism, and a calm presence during on‑call rotations.
• Communicates with clarity and empathy, translating technical details into language that is accessible to both technical and non‑technical stakeholders, especially during system changes, incidents, and impact discussions.

Technical Skills

• Linux server management, shell/Bash scripting, SSH, Linux security hardening.
• Python knowledge is a plus.

Benefits

• USD Base Salary.
• Enjoy Paid Time Off (PTO) after just 6 months of service.
• Full-time opportunity.
• Enjoy the freedom of a completely remote work environment!