Lead Linux Engineer

Monitoring system for IoT sensor data GreenFarm Solutions (Vietnam)

Automating Academic Publishing Workflows

Client Industry: Academic Publications

Tech Stack

  • Monitoring: Zabbix, Grafana
  • Security: OpenVAS, Fail2Ban, CIS-CAT
  • Backup: BorgBackup, AWS S3
  • Configuration: Ansible, Terraform
  • OS: Ubuntu LTS, Debian Stable

Project Team

  • Lead Linux Engineer: [Name], RHCE, 10+ years experience
  • Security Specialist: [Name], CISSP, OSCP
  • Database Administrator: [Name], PostgreSQL Certified

Engagement Model: 12-month renewable contract
Service Level Agreement: 99.9% uptime guarantee

Our Challenge

Monitoring system for IoT sensor data GreenFarm Solutions (Vietnam)

GreenFarm operates smart greenhouses across Vietnam. Their monitoring system, hosted on on‑premises servers, frequently crashed under increasing IoT sensor data. They needed a scalable, resilient infrastructure to process real‑time environmental data and support future expansion.

Solution & Steps.

  1. Assessment & Roadmap. Audited existing infrastructure and data pipelines. Identified latency bottlenecks and high availability requirements.
  2. Hybrid Cloud Design. Architected a hybrid solution combining an on‑premises OpenStack cluster for sensor ingestion with AWS for analytics and visualization. This balanced latency and scalability requirements while remaining cloud‑agnostic.
  3. IaC & Automation. Implemented Terraform and Ansible scripts to provision virtual private clouds, load balancers and Kubernetes clusters, mirroring our emphasis on IaC.
  4. Migration & Integration. Containerized legacy applications using Docker and deployed them to Amazon EKS. Established secure VPN tunnels between greenhouses and cloud resources.
  5. Optimization & Monitoring. Set up Prometheus and Grafana dashboards for infrastructure and application metrics. Adjusted autoscaling policies to match diurnal temperature variations.

Results.

The system now handles 4× more sensor data without downtime. Real‑time alerts reduced crop losses by 20 %, and the scalable architecture supports new farms without major capital expenditure.

Business Impact Result

Results & Benefits

  • Reduced average incident resolution time from 4 hours to 35 minutes
  • Eliminated 90% of after-hours emergency calls
  • Cut monthly maintenance time by 60%

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"The Linux administration team became true partners in our operations. Their proactive approach prevented crises before they impacted our researchers, and their documentation finally gave us clarity about our own systems."
Miroslav
CTO

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