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Seven years of production
Technical support → system administration → operations management, across hosting providers and cloud infrastructure.
November 2025 — Present
System Administrator
Jielian Technologies Ltd
Production Linux infrastructure, automation and cloud provisioning across web hosting and client application environments.
- Managed and optimised 5 production Linux servers, ensuring 99.9% uptime across web hosting and client application environments.
- Automated server provisioning, patch management and configuration tasks using Ansible playbooks, reducing deployment effort by 40%.
- Orchestrated containerised application deployments using Kubernetes (Deployments, Services, ConfigMaps, PV/PVC) and Docker, improving system reliability.
- Provisioned cloud resources on AWS (EC2, S3, IAM, EBS, ELB) using Terraform as Infrastructure as Code to streamline environment scaling.
- Integrated Git/GitHub version control workflows and reduced manual server troubleshooting time by 30% through Bash automation scripts.
July 2024 — October 2025
Operations Manager & System Administrator
Diana Host Ltd.
Led technical operations and a team of junior administrators across a 22-node production hosting fleet.
- Leadership & Operations: led technical operations and supervised a team of Junior System Administrators, fostering cross-functional collaboration and setting clear performance targets.
- Incident & SLA Management: established 24/7 on-call rotation support and standardised Incident Response workflows, ensuring 99.9% uptime and reducing Mean Time to Resolution (MTTR) by 35%.
- Client & SLA Compliance: managed high-priority production escalations for 500+ client accounts, adhering strictly to Service Level Agreements and minimising operational risk.
- Infrastructure Security & Backups: oversaw 22 production Linux/VPS nodes, implemented Cloudflare security rules to mitigate DDoS attacks, and maintained automated JetBackup disaster recovery pipelines.
December 2021 — June 2024
System Administrator
Diana Host Ltd.
Day-to-day operation of a large shared and VPS hosting fleet serving hundreds of active websites.
- Maintained 16+ Linux-based production servers, achieving consistent system stability and service availability.
- Monitored server health (CPU, RAM, Disk I/O) and proactively resolved network, DNS and HTTP errors before client impact.
- Developed custom Bash scripts to automate daily system maintenance, log rotations and routine system checks.
- Managed SSL/TLS certificates, domain configurations and email delivery optimisation for hundreds of active websites.
August 2018 — November 2021
Technical Support Engineer
Innovadeus Pvt. Ltd.
L1/L2 hosting support across Linux and Windows server environments.
- Handled L1/L2 technical support for 50+ daily client tickets, maintaining an average resolution time under 2 hours.
- Diagnosed and resolved hosting, web server, email delivery and DNS issues across Linux and Windows server environments.
- Restored interrupted web services and collaborated with senior engineers on complex infrastructure escalations.