jonleibowitz dot com
Jon Leibowitz
System Administrator | Cyber Security Enthusiast
Email: <email>
LinkedIn: jonleibowitz
GitHub: jonleibowitz
Professional Experience
Web Administrator, Los Angeles County, Public Works, ITDOI (Operations and Infrastructure), Web Admin Unit
September 2022 - Present
- Work closely with developers, server team, and other stakeholders to deploy changes to production internet and intranet sites.
- Troubleshoot application issues, ensuring optimal performance and minimal downtime.
- Manage Azure App Service Environment and Azure DevOps, implementing best practices for cloud computing.
- Utilize a variety of technologies, including Windows and Linux, to meet the diverse needs of the organization.
- Write and maintain scripts in Powershell, Python, and Bash to automate routine tasks and improve efficiency.
- Responsible for upgrading ColdFusion on web servers, ensuring the latest features and security patches are in place.
- Manage GitHub, providing support and guidance to developers in the organization.
- Maintain and update TLS / HTTPS on web servers, ensuring secure and encrypted connections.
- Practice security optimization, implementing measures to protect the organization’s data and systems.
Platform Support Associate / Advocate, DigitalOcean June 2015 - January 2018
- Spearheaded customer support during DigitalOcean’s evolution from a VPS provider to a comprehensive cloud platform, encompassing products like block storage, load balancers, VPC, Kubernetes, and App Platform.
- Instrumental in addressing the needs of ‘mid-tier’ customers ($50-300 monthly spend), effectively reducing churn by identifying and alleviating pain points, and providing operational guidance and best practices.
- Gained expertise in self-hosting and managing business and development software, focusing on security requirements and failure modes to swiftly resolve related customer issues.
- Developed diagnostic tools to help identify domain and subdomain issues, including checking resource records and domain expiry, streamlining DNS troubleshooting processes.
- Demonstrated proficiency with the DigitalOcean API, enabling efficient management and automation of cloud infrastructure tasks.
- Actively involved in onboarding users to new technologies, enhancing customer satisfaction through smooth transitions and effective problem-solving.
- Collaborated with product teams to identify and resolve bugs, driving continuous product and service improvements.
- Delivered comprehensive support across various domains including billing, virtual servers, applications, DNS, and networking, enhancing customer experience.
- Managed and optimized Linux server environments, ensuring high performance and reliability in cloud infrastructure management.
- Led incident management and critical issue escalations, minimizing downtime and maintaining high service quality.
- Contributed to fraud detection and prevention, maintaining high standards of security and trust.
- Worked in tandem with multiple teams to architect HA solutions, leveraging strong analytical skills and a deep understanding of cloud technologies.
- Maintained an extensive knowledge base in Linux, Debian, Ubuntu, Django, and specialized in troubleshooting Kubernetes, enhancing system reliability.
- Demonstrated excellent communication skills, effectively leading diverse teams and explaining complex technical concepts with clarity.
- Applied expertise in networking, storage, and virtualization, with hands-on experience in database engines like MySQL, MariaDB, PostgreSQL, Redis, MongoDB, Kafka.
- Utilized a variety of tools and technologies including Ansible, Terraform, Docker, Kubernetes, Prometheus, Grafana, and more.
Technical Resource Administrator / Render Wrangler, DreamWorks Animation 2008 - 2012
- Managed and optimized the render farm, ensuring maximum capacity and efficient delivery of rendered shots for dailies and rounds.
- Maintained rendering priorities and resource allocations across various productions, demonstrating strong organizational skills.
- Troubleshot and escalated infrastructure and render farm issues, providing reliable and efficient solutions.
- Assisted artists with render job submissions and errors, showcasing excellent communication and problem-solving skills.
- Provided world-class support for the day-to-day operations of the studio, contributing to its initiatives.
- Collaborated closely with engineering departments on supporting infrastructure upgrades and changes.
- Ensured all support incidents were triaged or resolved in a timely manner, minimizing productivity loss.
- Served as the primary point of contact for end-user support incidents, demonstrating strong customer service skills.
- Analyzed and resolved hardware and software problems, showcasing strong technical troubleshooting skills.
- Managed all aspects of software license installations, ensuring compliance and availability.
- Provided technical expertise and ownership of application debugging across most departments.
- Developed new tools to automate processes, increasing departmental efficiencies.
- Participated in and/or ran preventative maintenance tasks, ensuring system reliability and performance.
- Assisted in creating and maintaining documentation related to studio support, demonstrating strong written communication skills.
Skills:
- Proficient in a Linux/Unix environment
- Python scripting
- Technical troubleshooting
- Excellent verbal and written communication skills
- Ability to work well independently and in a team
- Ability to handle a fast-paced, occasionally high-pressure environment
- Familiarity with rendering pipeline, infrastructure, and hardware.
Education
Associate in Science Degree, Major Computer Information Systems – Cybersecurity, Pasadena City College
In progress, Expected Graduation: December 2024
Computer Information Systems – System and Network Administration – Certificate of Achievement [Pasadena City College] In progress
Cloud Computing – Certificate of Achievement Los Angeles City College 2021, required courses: Introduction to Computer Science, Introducton to Cloud Computing, Database Essentials in Amazon Web Services, Computer Engines in Amazon Web Services, Security in the Cloud, Introduction to Oracle SQL and PL/SQL, Programming in Python
Skills
- Linux System Administration
- Shell Scripting
- Python
- Cyber Security
Interests
- Hiking
- Open Source Contribution
- Cyber Security Research