Linux Systems Administrator and Engineer with 7+ years of experience optimizing Linux-based systems. Skilled in DevOps tools and automation techniques to enhance efficiency. Seeking to contribute expertise to a productive environment.
Overview
7
7
years of professional experience
Work History
Linux System Engineer
Samsung
Ridgefield Park, United States
01.2023 - 05.2024
Troubleshot hardware related issues on Linux systems including kernel panics and boot errors.
Deployed software packages using package managers such as apt-get or yum repositories.
Managed storage devices like RAID arrays and SANs using LVM or other storage management tools.
Worked closely with development teams to ensure smooth deployment of their applications.
Configured network services such as DNS, DHCP, NFS, FTP, SSH and web servers.
Developed scripts to automate various system administration tasks.
Monitored system performance, identified bottlenecks, and implemented solutions to improve performance.
Configured monitoring tools such as Nagios or Zabbix to monitor system resources.
Installed and configured Linux operating systems on physical, virtual, and cloud environments.
Created user accounts and managed permissions on the file system level for multiple users.
Implemented best practices for security hardening of Linux servers.
Researched new technologies in order to stay current with industry trends.
Performed regular maintenance tasks such as patching, security updates, log reviews, backups.
Ensured high availability of critical services through automated failover techniques.
Investigated server logs to identify potential problems or suspicious activity.
Provided technical support for users experiencing issues with Linux-based systems.
Recorded systems information and documented design specifications and installation instructions.
Led cross-functional teams in systems integration projects.
Designed and delivered mission-critical infrastructure to maintain consistent availability and performance.
Provided technical guidance for system development and troubleshooting.
Handled troubleshooting tasks for Local Area Networks, Wide Area Networks, and voice systems to reduce network connectivity problems.
Collaborated with developers in order to troubleshoot application related issues quickly.
Maintained version control systems such as GitLab for all software development projects.
Provided support for web servers configuration and maintenance activities.
Developed automated deployment processes and scripts to ensure a smooth transition from development to production.
Managed infrastructure components including virtual machines, storage devices, networks.
Created CI and CD pipelines with Jenkins and Docker to automate the build process of applications.
Coordinated with other teams for successful rollouts of new features or bug fixes.
Configured, managed, and monitored cloud-based services such as AWS EC2, S3, EBS, ELB, RDS using Terraform and Ansible.
Monitored system health using Nagios and Splunk for early detection of issues.
Resolved conflicts between different processes running simultaneously on the same server by optimizing resource allocations accordingly.
Collaborated with other teams within organization while building new projects that involved deploying applications on Linux platforms.
Set up monitoring tools like Nagios or Zabbix to track server health metrics such as CPU usage, memory consumption.
Installed, configured, maintained and upgraded Linux operating systems and services.
Deployed updates, patches and hotfixes on a regular basis to keep the system secure from vulnerabilities.
Managed user accounts on the Linux environment by creating new users and modifying existing ones as per their needs.
Investigated root causes behind service failures or unavailability of certain features in order to take corrective actions quickly when needed.
Maintained documentation related to system configurations, software installations, user accounts for future reference purposes.
Configured and updated Linux servers with latest releases and patches.
Reduced service backlog by resolving daily tickets efficiently.
Implemented and monitored network security measures, including firewalls and intrusion detection systems.
Configured and supported virtual environments using VMware and Hyper-V, optimizing resource utilization.
Oversaw storage management, data migration, backups and drive replacements.
Linux System Administrator
Chase
Jersey City, United States
03.2021 - 11.2022
Expertly managed Linux-based systems, overseeing installation, configuration, and maintenance tasks to ensure seamless operations
Leveraged Bash scripting language to automate tasks and streamline processes, significantly enhancing efficiency and reducing manual intervention
Applied comprehensive networking knowledge to configure TCP/IP, DNS, DHCP, and other networking concepts on Linux systems
Implemented Linux security best practices, encompassing user management, file permissions, and system hardening to uphold system integrity
Demonstrated strong troubleshooting skills to promptly diagnose and resolve system issues, including performance tuning and debugging
Utilized virtualization technologies such as VMware for efficient resource management
Employed version control systems like Git to effectively manage configuration files and scripts
Leveraged cloud platforms like AWS and Azure Cloud Platform for provisioning and managing Linux instances, contributing to scalable infrastructure
Exhibited strong communication skills and collaborated effectively with team members and stakeholders to achieve project objectives
Maintained a commitment to continuous learning, staying updated with the latest trends and technologies in Linux administration through self-learning and professional development activities.
Linux System Engineer
Yale University
New Haven, United States
03.2019 - 12.2020
Overlooked the management and upkeep of Linux servers and systems, overseeing every aspect from installation to performance tuning, ensuring seamless operations
Orchestrated the implementation and enforcement of security measures, safeguarding system integrity and data confidentiality through updates, patch management, and vulnerability assessments
Crafted and maintained backup and recovery protocols, safeguarding critical data and ensuring uninterrupted business continuity in the face of potential system failures or disasters
Provided hands-on technical support and guidance to users, swiftly resolving issues and inquiries concerning Linux systems and services, ensuring uninterrupted workflow
Took charge of creating and managing comprehensive documentation, guides, and procedures, serving as a crucial resource for system administration tasks, configurations, and troubleshooting processes
Collaborated among IT teams, departments, and stakeholders, deploying and integrating tailored Linux-based solutions and services to meet the unique needs of the university environment
Innovated and maintained automation scripts and tools, streamlining operations, enhancing efficiency, and elevating the management of Linux systems and services
Proactive in staying up to date with industry trends and best practices in Linux system administration, disseminating valuable insights and expertise through engaging training sessions, workshops, and documentation
Provided technical mentorship to a team of Systems Administrators, offering guidance on resolving complex problems and issues.
Linux System Administrator
HP
New York, United States
12.2016 - 03.2019
Installed and configured essential services such as NFS, NIS, AUTOFS, DHCP, DNS, and NTP, ensuring seamless operations
Employed advanced performance analysis techniques, leveraging tools like top, sar, df, and free to optimize system efficiency
Demonstrated expertise in RAID configuration (0,1,5,6,10) on both DELL and HP servers, ensuring data integrity and reliability
Installed ESXi on Dell and HP servers, laying the groundwork for robust virtualization environments
Leveraged Ansible to streamline application deployment and automate routine tasks, enhancing productivity
Exhibited proficiency in network routing, switching, and load balancer management, ensuring smooth data flow and optimal resource utilization
Demonstrated familiarity with firewall configurations and various other networking systems, contributing to comprehensive network security
Provided day-to-day systems administration and support for both production and non-production environments in coordination with best IT practices
Managed and maintained CentOS and RedHat Enterprise Linux Operating System environments, ensuring their smooth operation and compliance with standards
Overseeing troubleshooting activities related to backups, recovery, file system maintenance, software upgrades, and installation, ensuring uninterrupted workflow
Administered account management tasks, including passwords, keys, certificates, certificate authorities, and trust stores
Maintained comprehensive documentation of IT infrastructure and troubleshooting procedures, facilitating efficient knowledge transfer and decision-making
Assisted in the creation, assignment, and maintenance of systems administration-related tickets, ensuring timely resolution of issues
Provided expert-level Linux system administration support, with a focus on Red Hat Enterprise Linux (RHEL), ensuring system stability and security
Managed system patches and enforced adherence to security standards, maintaining an optimal systems security posture
Conducted thorough security scans to promptly address vulnerabilities
Enhanced system administration efficiency by developing and maintaining relevant shell scripts, automating routine tasks
Delivered timely reports on project statuses and performed other administrative tasks as required, ensuring transparency and accountability.