Available for new clients

Your server,
expertly managed.

Linux server setup, hardening, monitoring, and maintenance — done for you. Stop worrying about infra. Start shipping.

No commitment. Audit is 100% free.

Ubuntu / Debian / CentOS Nginx / Apache / Caddy Docker / Docker Compose PostgreSQL / MySQL / Redis SSL / Cloudflare / Firewall
⭐ Core Service

Sysadmin as a Service

One expert owning your Linux server end-to-end. Setup, security, monitoring, and maintenance — so you can focus entirely on building your product.

Server Setup

Full provisioning from bare OS — hardening, firewall rules, SSL, reverse proxy, app stack, and automated backups.

  • OS hardening & SSH security
  • Nginx/Caddy + SSL (Let's Encrypt)
  • App deployment (Docker or bare)
  • Automated backup configuration
Most Popular

Monitoring & Alerts

24/7 uptime and performance monitoring. You get alerted when something's wrong — I fix it before it becomes a crisis.

  • Uptime monitoring (1-min checks)
  • CPU / RAM / disk alerts
  • Log aggregation & error alerts
  • Monthly health reports

Ongoing Maintenance

Security patches, dependency updates, performance tuning, and hands-on support when you need it.

  • OS & package security updates
  • Performance optimization
  • Incident response & recovery
  • Priority email support

How it works

Simple onboarding. No lock-in.

1

Send me your details

Tell me about your server, stack, and what you need. I'll review and respond within 24 hours.

2

Free audit & proposal

I audit your current setup (or plan the new one) and send a clear proposal — no jargon, no surprises.

3

I handle everything

Once onboarded, your server is my responsibility. You focus on your product, I keep the infra running.

Simple, transparent pricing

Bring your own VPS or I can recommend one. No hidden fees.

Starter

1 server, basic stack

$80 /month
  • 1 VPS managed
  • Setup + hardening
  • Uptime monitoring
  • Security updates
  • Email support
Get Started
Best Value

Professional

Up to 3 servers

$150 /month
  • Up to 3 VPS managed
  • Everything in Starter
  • CI/CD pipeline setup
  • Performance tuning
  • Priority support (4h response)
Get Started

Custom

Complex infra / agencies

Custom
  • Unlimited servers
  • Everything in Professional
  • Kubernetes / container orchestration
  • SLA agreement
  • Dedicated Slack channel
Let's Talk

One-time setup fee of $150 for new servers. Waived on annual plans.

DevOps as a Service

Ship faster with the right infrastructure.

Beyond day-to-day management — I design and implement the pipelines, containers, and cloud infra that let your team move fast without breaking things.

CI/CD Pipelines

GitHub Actions, GitLab CI — automated test, build & zero-downtime deploy.

Docker & Containers

Production-grade Compose, private registry, optimized image builds.

Infrastructure as Code

Terraform & Ansible — version-controlled, reproducible, disaster-proof.

Observability Stack

Grafana + Prometheus + Loki — full metrics, logs & alerting dashboards.

Fixed-price. Clearly scoped.

No hourly billing surprises. Every project starts with a free discovery call and a written proposal.

1

Free 30-min discovery call

Understand your stack, goals, and constraints.

2

Written proposal with fixed price

Exact deliverables, timeline, and definition of done.

3

Build, document & hand off

You own all code, configs, and runbooks.

4

Optional: roll into managed plan

Keep it healthy long-term with a Sysadmin retainer.

Typical project range

$300–500

CI/CD setup

From $500

Full stack setup

Custom

IaC / K8s

Start with a free discovery call →

No commitment. I'll send a written proposal before any work begins.

Client Reviews

Trusted by clients worldwide.

Verified reviews from past Upwork engagements.

★★★★★

"He has the right skills to handle all the DevOps operations in my server. He is talented and well-educated for this job."

H

Hashim A.

Founder · Food & Grocery Delivery (Tasleem)

Verified
★★★★★

"Dat has been one of our key system administrators keeping our deployment of servers running including database, web, VPN and backup services. He is attentive and follows through on tasks."

R

Roy S.

Web Development Manager · XS Developments

Verified
★★★★★

"He has consistently proven 1st class, very friendly and has saved us a lot of time and money. Highly recommendable."

M

Mark A.

CEO · andhype.com

Verified
★★★★★

"I hired Dat to help setup my server. Now he monitors all my websites and the server to keep working and maintain the uptime. He's very flexible and always comes with ideas on how to optimize the process and servers."

A

Andrian V.

CEO

Verified
★★★★★

"I hired Dat to work as our project server administrator, he is doing a brilliant job. Highly recommended."

P

Pau Fung F.

Managing Director · Office Booking App

Verified

Common questions

Do I need to provide my own VPS?

Yes — you keep ownership of your server and pay the hosting provider directly. I just manage it. This keeps things simple: you're never locked in, and your infrastructure stays yours.

What hosting providers do you support?

Any provider that gives you SSH access — DigitalOcean, Vultr, Hetzner, Linode, AWS EC2, GCP Compute, and others. I can also recommend the best option for your use case and budget.

How do you access my server?

Via SSH with a dedicated key. You grant access and can revoke it at any time. I document every change made to your server so you always have full visibility.

What's your response time for incidents?

Starter plan: best effort within 12 hours. Professional: within 4 hours. Custom plans can include an SLA with defined response times. I'm in UTC+7 (Vietnam) but actively monitor alerts.

Can I cancel anytime?

Yes, month-to-month with no lock-in. Cancel before your next billing cycle and I'll provide a full handoff document so you or another engineer can take over smoothly.

Get in touch

Tell me about your setup. I'll reply within 24 hours with a free audit and proposal.