Summary
Overview
Work history
Education
Skills
Websites
Certification
References
Timeline
Generic

Vikas Viswanath

Westbyfleet,United Kingdom

Summary

Results-driven and certified Linux System Administrator with over 5 years of experience in managing, configuring, and troubleshooting Linux environments. Proven expertise in system performance tuning, security hardening, automation with scripting, and ensuring high availability of mission-critical applications. Adept at working in fast-paced, dynamic environments and delivering scalable infrastructure solutions

Overview

7
7
years of professional experience
2028
2028
years of post-secondary education
1
1
Certification

Work history

Technical Consultant (Remote)

GD Innovative Solution
Thiruvananthapuram
12.2022 - 09.2025
  • Administered and maintained Linux systems (RHEL, CentOS), handling system updates, user management, and security configurations.
  • Managed VMware virtualization and implemented Ansible automation for efficient and consistent infrastructure provisioning.
  • Developed Python and Bash scripts to streamline system operations, deployments, and monitoring.
  • Performed MySQL administration, including backups, replication, and performance tuning.
  • Deployed and optimized LAMP stacks for hosting dynamic web applications.
  • Built and maintained cloud infrastructure on AWS, Google Cloud, and DigitalOcean, focusing on scalability and cost-efficiency.
  • Delivered production-ready environments for Magento, WordPress, and Laravel, ensuring high availability and security.
  • Managed deployments from staging to production, including domain setup, SSL, load balancing, and auto-scaling.
  • Supported development teams with environment setup, dependency management, and issue resolution.
  • Conducted infrastructure reviews, implemented backup strategies, and contributed to security audits and system hardening.

Associate III - Cloud Infrastructure Services

UST Global
Thiruvananthapuram
09.2021 - 11.2022
  • Performed regular OS patching across dev, test, and prod Linux servers to maintain security and compliance within a PCI-DSS certified environment.
  • Managed and deployed custom server/application patches, including Apache, Tomcat, OpenJDK, PHP, and other dependencies.
  • Automated patching and updates using Puppet, and verified compliance with GOSS and custom validation scripts.
  • Resolved Level 3 support tickets, addressing performance issues, configuration errors, and security vulnerabilities.
  • Conducted and analyzed security audits with tools like ClamAV, resolving identified threats.
  • Migrated legacy servers and applications to modern platforms with minimal downtime and complete data integrity.
  • Deployed, configured, and administered RedHat Satellite, enabling efficient package inclusion/exclusion, patch management, and system provisioning across enterprise environments.

Linux Administrator

OrsysIndia Consultancy Service LLP
Thiruvananthapuram
05.2018 - 09.2021
  • Resolved complex Linux server issues across cloud and on-premise environments, and managed production server setups with PHP/Laravel and MySQL/MariaDB (LAMP) to ensure high availability and performance.
  • Managed and troubleshot mail servers (Postfix, iRedMail, SendGrid) for reliable delivery and security.
  • Handled networking fundamentals and basic firewall operations to ensure system integrity.
  • Supported developers with on-prem system setups, installations, and troubleshooting; performed system audits, compliance logging, and proactive server monitoring with Nagios and other tools, including performance tuning for optimal server health.
  • Collaborated with cross-functional teams to resolve issues and improve infrastructure.
  • Maintained clear documentation and ensured effective communication with stakeholders.
  • Handled domain and hosting management on platforms like GoDaddy and ResellerClub using cPanel and WHM; maintained and backed up critical systems including repositories and databases.
  • Configured and maintained network infrastructure (routers, switches, firewalls) and PBX systems like Issabel to support secure and efficient communication.

Education

Master of Science - Cyber Security

University of Hertfordshire

Bachelor of Science - Computer Science

University of Kerala
01.2009 - 01.2012

Skills

  • Operating Systems: Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu, Debian, RockyLinux
  • Scripting: Bash, Python
  • Web & application servers: Apache,Tomcat,Nginx
  • Automation & Tools: Ansible, Puppet
  • Virtualisation & Cloud: VMware vSphere, AWS, Digital Ocean
  • Containers: Docker, Kubernetes
  • Monitoring: Nagios, Prometheus, Grafana
  • Networking: DNS, DHCP, NFS, SSH, IPTables, Firewall
  • Security: OS Hardening
  • CI/CD & DevOps Tools: Git, GitLab
  • Backup and Recovery: Rsync, LVM Snapshots
  • ITSM tools: Jira, ServiceNow,HP Service Manager

Websites

Certification

  • RedHat Certified Engineer with automation (RHCE) both Rhel 7 and 8–(170-137-061)
  • Certified Kubernetes Administrator (LF-us8woaikd8)
  • ITILv4 Foundation (GR671373729VV)
  • AWS Certified Solutions Architect - Associate (KR2L026KN2E11SGC)

References

Available upon request.

Timeline

Technical Consultant (Remote)

GD Innovative Solution
12.2022 - 09.2025

Associate III - Cloud Infrastructure Services

UST Global
09.2021 - 11.2022

Linux Administrator

OrsysIndia Consultancy Service LLP
05.2018 - 09.2021

Bachelor of Science - Computer Science

University of Kerala
01.2009 - 01.2012

Master of Science - Cyber Security

University of Hertfordshire

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