all_systems_operational
→ free_audit
available · taking on 2 new clients this month

Your Linux server,
expertly managed.

Setup, hardening, monitoring & maintenance — done by one expert who owns your infra end-to-end. Stop firefighting. Start shipping.

// 24h reply · no commitment · stays free even if you don't hire me

★★★★★ 5.0 · 23+ reviews · 10y experience · 100% job success
~/clients/fleet · live
connected
UPTIME · 30d 99.98%
latency p95
98ms
err rate
0.01%
incidents
0
last actions
  • 12:42 apt upgrade · 14 pkgs · prod-03
  • 12:18 ssl renew · *.client.io
  • 11:55 backup verified · 480GB
  • 11:30 ! alert resolved · disk 82→64%
  • 10:04 deploy · zero-downtime · v1.4.2
fleet · 7 servers ● 6 healthy · 1 degraded
// composite view across active fleet
Ubuntu · Debian · CentOS
Nginx · Caddy · Apache
Docker · K8s · Compose
Postgres · MySQL · Redis
⟶ 01 / sysadmin as a service

One expert.
Owning your server end-to-end.

No revolving door of contractors. No "your server is in a queue." A single engineer who knows every corner of your stack and treats it like their own.

01 setup

Server Setup

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

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

Monitoring & Alerts

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

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

Ongoing Maintenance

Security patches, dependency updates, performance tuning & hands-on support whenever you need it.

  • OS & package security updates
  • Performance optimization
  • Incident response & recovery
  • Priority email/chat support
⟶ 02 / how it works

From SSH key
to peace of mind — in 4 steps.

  1. 01

    Send me your details ~24h reply

    Tell me about your server, stack & what you need. Could be: "I have a DO droplet, no idea what I'm doing." Or: "Multi-region K8s setup." All welcome.

    // you say
    "DigitalOcean droplet, Node + Postgres,
    need monitoring & backups"
  2. 02

    Free audit & written proposal no commitment

    I audit your current setup (or plan a new one) and send a clear proposal. Exact deliverables, timeline, fixed price. No jargon. No surprises.

    // you receive
    audit_report.pdf
    proposal.pdf · 4 pages
  3. 03

    Grant SSH access (revokable) your control

    Add my dedicated SSH key. Every change is documented in your activity log. You see what was done, when, and why — full visibility, always.

    revoke in 1 command sudo only when needed every action logged
    $ ssh-key add
    + logged: yes
  4. 04

    I handle everything you ship product

    Server is my responsibility. Updates, alerts, incidents, optimizations — I own it. You get a calendar, focus on your product, and let infra be a non-issue.

    $ status
    ● handled
    your_focus = product
⟶ 03 / pricing

Simple pricing.
Transparent value.

You bring your own VPS (or I recommend one). Month-to-month — cancel anytime with full handoff doc. Setup fee waived on annual plans.

→ START HERE
solo & smb

Starter

1 server · basic stack

$75 /mo
  • 1 VPS managed
  • Setup + hardening
  • Uptime monitoring
  • Security updates
  • Email support · 6h SLA
  • CI/CD pipeline
  • Performance tuning
Start free audit → or sign up directly →
★ BEST VALUE
startups

Professional

Up to 3 servers · CI/CD · priority

$150 /mo
  • Up to 3 VPS managed
  • Everything in Starter
  • CI/CD pipeline setup
  • Performance optimization
  • Priority support · 30min SLA
  • Slack/Telegram channel
  • SLA agreement
Start free audit → or sign up directly →
agency · k8s

Custom

Complex infra · multi-env · SLA

Custom
  • Unlimited servers
  • Everything in Professional
  • K8s / container orchestration
  • SLA agreement
  • Dedicated Slack channel
  • Quarterly review call
  • White-label option
Let's talk →
setup_fee
$150 once
waived on annual
contract
Month-to-month
cancel anytime
handoff_doc
Always included
never locked-in
payment
Paddle · card
vat-compliant
⟶ 04 / devops as a service

Ship faster.
Break less.

Beyond day-to-day management — pipelines, containers and cloud infra so your team moves fast without breaking things.

[ ci_cd ]

CI/CD Pipelines

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

[ containers ]

Docker & Compose

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

[ iac ]

Infra as Code

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

[ observability ]

Observability Stack

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

Fixed price. Clearly scoped.

No hourly billing surprises. Free discovery call & written proposal first.

  1. [1]
    30-min discovery call
    within 48h · stack · goals · constraints
  2. [2]
    Written proposal
    within 3 days · deliverables · timeline · DoD
  3. [3]
    Build & hand off
    1–4 weeks · you own all code & runbooks
  4. [4]
    Optional retainer
    starts when you're ready · long-term plan
$300–500
CI/CD
$500+
full stack
custom
k8s · iac

// no commitment · written proposal before any work begins

⟶ 05 / verified reviews

Trusted by clients
worldwide.

5.0
avg rating
100%
job success
23+
reviews
★★★★★ verified

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

Hashim A.
Founder · Tasleem (Food & Grocery)
★★★★★ 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."

Roy S.
Web Dev Manager · XS Developments
★★★★★ verified

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

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."

Andrian V.
CEO
★★★★★ verified

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

Pau Fung F.
MD · Office Booking App
your review →

Be the next 5-star.

Every client gets the same care: clear communication, documented work, and a partner who treats your infra like their own.

Start your project →
⟶ 06 / faq

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 6 hours. Professional: within 30 minutes. 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.

Is the free audit really free? Any obligation?+

Yes, genuinely free. You'll get a written audit (PDF, 2–4 pages) covering security, performance and recommendations — yours to keep regardless of whether you hire me. No upsell calls, no "limited-time offer." If my proposal isn't a fit, the audit is still useful for whoever you work with next.

How do I know my server & data are safe with you?+

Three layers: (1) dedicated SSH key per client — revokable from your side in one command, (2) every change logged in a shared activity log you can audit anytime, (3) NDA available on request before any access is granted. I never store credentials outside the agreed-upon location, and your data never leaves your server.

⟶ 07 / get in touch

Let's talk about
your server.

Reply within 24h with a free audit and proposal.

POST /contact · secured · hcaptcha

// reply within 24h · 100% free audit · no commitment

// still scrolling?

Let's just talk.

30-min call · no slides · no pitch · just your infra and what's keeping you up at night.

Book a call →
Free audit → Pricing