Sr. Linux Administrator

Sr. Linux Administrator 

About IEX:

At IEX, we’re passionate about building technology that moves industries forward. Our story began when we built a stock exchange designed to deliver high-performance results for all investors. Our belief is that technology should level the playing field so that opportunity is equitable. We are applying what we learned from building a high-performance stock exchange to build technology that solves for complexity and accelerates growth in other areas. We aspire to build a trusted, disciplined, and diversified business. Our goal is to build transformative technology without ever compromising our integrity - and we’re just getting started!

Role Overview:

We are seeking a highly skilled and experienced Senior Linux Administrator with strong expertise in Linux Administration and automation using Python and developing/consuming APIs. The ideal candidate will be responsible for managing complex Linux-based environments, driving infrastructure automation, improving system reliability, and enabling integrations through robust APIs. 

If the following motto applies to you: "Obsessed about building platforms through Automation and Tooling, and getting Clarity through Observability and Monitoring,"  then we should talk. 

 

Key Responsibilities: 

Linux Systems Administration 

• Manage, configure, and maintain enterprise-scale Linux systems (primarily Ubuntu). 

• Monitor system performance in Prometheus, conduct tuning, and ensure high availability and disaster recovery readiness. 

• Apply security best practices, patch management, and hardening of systems. 

Automation & Scripting 

• Design and implement automation tools/scripts using Python for routine system tasks, deployments, monitoring, and reporting. 

• Develop and maintain Ansible playbooks, shell scripts, or other IaC tools to automate infrastructure management. 

• Create self-service tools and scripts to enable developer and DevOps efficiency. 

API Development & Integration 

• Develop and maintain RESTful APIs to enable system integrations and services. 

• Create Python-based tools to consume third-party APIs for orchestration or reporting purposes. 

• Document and maintain API endpoints, security configurations, and access control mechanisms. 

Monitoring & Logging 

• Implement and maintain centralized logging and monitoring solutions (e.g.,  Prometheus/Grafana, Graylog, etc.). 

• Automate alerting and remediation actions based on system health and performance metrics. 

Collaboration & Support 

• Work closely with DevOps, developers, and security teams to ensure seamless CI/CD pipeline integrations and secure infrastructure. 

• Provide tier-3 support for developer issues, troubleshooting system and application problems. 

Documentation & Knowledge Sharing 

• Create detailed documentation for system configurations, procedures, automation scripts, and APIs. 

• Mentor junior team members and participate in training sessions or technical knowledge sharing. 

 

Required Skills & Experience: 

• 5+ years of experience in Linux administration in production environments. 

• Strong hands-on experience with Python for automation and tool development. 

• Proficiency with RESTful API design, development, and integration. 

• Experience with configuration management tools (e.g., Ansible ). 

• Solid understanding of networking concepts, firewalls, and security practices.