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Portfolio · Batam, Kepulauan Riau, Indonesia

Hi, I'm TEGAR ARRAHMAN 👋

Network & Infrastructure Engineer building production cloud platforms — Linux, BGP, virtualization, Go, and automated provisioning.

I'm Tegar Arrahman — Network & Infrastructure Engineer with hands-on experience across Linux servers, networking, virtualization, cloud platforms, backend development, and infrastructure automation. I currently work on enterprise infrastructure while building Kilat Cloud. I build production systems across networking, Linux, cloud platforms, and backend APIs — and I'm the founder of Kilat Cloud.

View projects182 reposGet in touch

182

Public repos

58

Original

124

Forks

22

Followers

13

Languages

6

Services

About

Who I am

I'm Tegar Arrahman — Network & Infrastructure Engineer with hands-on experience across Linux servers, networking, virtualization, cloud platforms, backend development, and infrastructure automation. I currently work on enterprise infrastructure while building Kilat Cloud.

Full bio →

Based in Batam, Kepulauan Riau, Indonesia. I focus on modern web frameworks, developer tooling, and thoughtful UI design. On GitHub I'm TEGAR-SRC — 182 public repos and counting.

BGPOSPFMikroTikLinuxProxmoxOpenStackDockerTerraformGoPostgreSQLRedisReactNext.jsTypeScriptCloudflareCI/CD

Principles

How I work

Six things that show up in every project — whether it's a one-page site or a full product.

Infrastructure as product

API-driven provisioning, automated billing, provider abstraction, and self-service — not manual server babysitting.

Full-stack troubleshooting

App → process → OS → storage → network → virtualization → hardware → provider. Problems rarely fit one layer.

Production, not mock

Real data, real databases, real CRUD, real provider integration. No dummy implementations in production systems.

Operate what you build

I run the 40+ Linux servers I help manage — design decisions come from production experience, not slides.

Scalable & observable

Monitoring, auditing, queues, and resilient systems are part of the definition of done for infrastructure.

Hands-on craft

From MikroTik and BGP to Go APIs and React consoles — I care about the details at every layer.

Process

How a project runs

No black boxes. You always know what's happening, what's next, and what I need from you.

See services →
  1. 1

    Discover

    We talk goals, users, constraints, and success criteria — including infrastructure realities if it's a platform build.

    Output: written brief + rough scope

  2. 2

    Plan

    Milestones with clear deliverables, a timeline you can hold me to, and a price that doesn't move without a conversation.

    Output: proposal + milestone map

  3. 3

    Build

    Short iterations with working demos. You see progress every few days and we steer before anything gets expensive to change.

    Output: staging URL + weekly demos

  4. 4

    Launch

    Deploy, smoke-test, wire monitoring, hand over docs. I stay available for the first stretch after launch.

    Output: live system + handoff docs

Work

Featured projects

A few things I've designed, built, and shipped recently.

See all →

Kilat Cloud

Live

An API-driven cloud platform: customer console, admin, auth, billing, queue workers, provider abstraction, and multi-region infrastructure planning.

GoPostgreSQLRedisProxmoxReactCloud
View details

Portfolio Website

Live

Static portfolio: project case studies, full CV, GitHub hub with 187 repos, and custom contribution heatmap.

AstroTailwind CSSTypeScript
View details

Services

How I can help

From a single landing page to a full product build — pick what fits, or ask for a custom scope.

All services →

Cloud & Infrastructure

Linux servers, virtualization, networking, storage, and production infrastructure operations.

Retainer / projectDetails →

Platform & Backend Engineering

Go/Node backends, APIs, billing, queues, and provider abstraction for infrastructure products.

Project-basedDetails →

Network Engineering

BGP, OSPF, MikroTik, VPN, NAT, firewall, failover, and ISP-grade network operations.

Project / day rateDetails →

DevOps & Automation

Docker, Terraform, GitHub Actions, CI/CD, Dokploy, and deployment automation.

Project-basedDetails →

Web App Development

Full-stack web applications — React/Next.js frontends with Go or Node backends.

Project-basedDetails →

Technical Consulting

Architecture reviews, stack decisions, disaster recovery, and infrastructure roadmaps.

Day rateDetails →

Open source

From GitHub

182 public repos · 58 original · 22 followers · synced from TEGAR-SRC

GitHub hub →

WEP-NIKAH

1

No description

TypeScriptDetails →

reverse-proxy-buat-bypass-cors

1

reverse proxy buat bypass cors

TypeScriptDetails →

me

1

No description

OtherDetails →

saranaakses.co.id

1

No description

TypeScriptDetails →

tahu_bunder

1

tahu_bunder

PythonDetails →

BUG-XL-AKRAB-UNLIMTED

1

BUG INI TELAH DI ENCRYPT KAALU MAU PAKE SILAHKAN EMAIL SAYA

ShellDetails →

All repositories

182 with filters

Original work

58 non-forks

Languages

13 primary langs

Activity

Recent public events

Languages

What I build with

Primary language distribution across public repositories.

Full breakdown →
Other121 repos
TypeScript15 repos
Shell12 repos
Python8 repos
JavaScript8 repos
Go6 repos
PHP4 repos
CSS3 repos

Experience

Where I've worked

From agency sprints to independent product builds.

About me →

  1. Founder / Developer / Infrastructure Engineer

    2026 — Present

    PT Kilat Cloud Indonesia (Kilat Cloud)

    Founded Kilat Cloud — cloud infrastructure platform with customer console, admin, auth, backend API, billing, wallet, automated provisioning, provider integration, monitoring, and ticketing.

    • Service-separated architecture: console / auth / core / admin
    • Go + Fiber + GORM + PostgreSQL + Redis backend
    • Queue/worker provisioning with provider abstraction
    • Planning own ASN, BGP, RPKI, IX, colocation

  2. Network & Infrastructure Engineer

    2025 — Present

    SANAK CYBER

    Operate 40+ enterprise/dedicated Linux servers: networking, virtualization, deployment, monitoring, and infrastructure management.

    • MikroTik, BGP, OSPF, VPN, NAT, firewall, failover
    • Proxmox VE, VMware ESXi, Docker
    • Dell iDRAC / HPE iLO out-of-band management
    • Terraform, GitHub Actions, CI/CD, server automation

  3. IT Support / System Administrator

    Jan 2024 — 2025

    PT Roy Stone Indonesia

    Internal IT: servers, computers, networking, troubleshooting, and systems supporting company operations (incl. marketplace platforms).

    • Computer & network troubleshooting
    • Server / system administration
    • Workstation maintenance & hardware support

  4. NOC Network Engineer

    2020 — 2022

    Gigabit Exchange / Gigabit Hosting

    Network monitoring, NOC operations, incident response, VPN infrastructure, and routing support.

    • Network availability monitoring
    • VPN / tunneling infrastructure
    • Connectivity troubleshooting

  5. Computer & Laptop Technician

    ~1.5 years

    Selogiri Komputer

    Desktop/laptop repair, hardware diagnosis, software troubleshooting, networking, plus CCTV install (DVR/NVR, fiber, OLT).

    • Hardware & software repair
    • CCTV + long-distance networking
    • Fiber optic / HTB / OLT deployments

  6. Remote Website Developer

    Jul 2021 — ~2 months

    X-Rates.com

    Remote website development work.

    • Remote delivery
    • Website development

  7. Network Technician Intern (PKL)

    ~6 months

    ISP LDP

    Network installation & maintenance, ISP infrastructure, customer connectivity, field networking.

    • ISP infrastructure exposure
    • Field networking & troubleshooting

  8. AI Trainer

    Past

    Gronk AI

    Early AI exposure alongside networking and web work.

    • AI training work

Timeline

Milestones

A quick history of how I got here.

  1. 2018

    VPN / tunneling websites

    Started building and managing VPN/tunneling sites (SSH Ocean, Howdy ID, JagoanSSH, IndoSSH) plus early website development.

  2. 2019

    Tmail + early products

    Launched Tmail temporary email (~20k monthly users) and continued web development work.

  3. 2020–2022

    NOC at Gigabit Exchange

    Network monitoring, NOC operations, incident response, VPN infrastructure, and routing support.

  4. 2021

    Remote website developer

    Remote website development for X-Rates.com starting around July 2021.

  5. 2021

    GitHub era begins

    Opened the TEGAR-SRC GitHub account and started publishing projects publicly.

  6. 2024

    SMK TKJ graduate + IT support

    Graduated SMK PGRI 2 Wonogiri (Teknik Komputer dan Jaringan). Joined PT Roy Stone Indonesia as IT Support / System Administrator.

  7. 2025

    Network & Infrastructure Engineer

    Joined SANAK CYBER — managing 40+ enterprise/dedicated Linux servers, MikroTik, BGP/OSPF, virtualization, and automation.

  8. 2026

    Founded Kilat Cloud

    Founded PT Kilat Cloud Indonesia / Kilat Cloud — cloud platform with compute, networking, storage, billing, and automated provisioning.

Kind words

What clients say

Feedback from people I've worked with.

“Migrated production school server storage (~1 TB) while preserving application paths — zero downtime on critical services.”
School infrastructure client

Production storage migration

“Managed 40+ enterprise Linux servers with monitoring, failover, and automation across MikroTik and virtualized hosts.”
SANAK CYBER

Network & Infrastructure Engineer

“Built SPMB as a production government-style admission system — multi-actor, verified documents, real rankings.”
Education platform

Multi-role admission system

Writing

Latest from the blog

Notes on building for the web, shipping products, and keeping things simple.

All posts →

Infrastructure as a product, not a pile of servers

Why Kilat Cloud is built as an abstraction layer — API-driven provisioning instead of manual config.

CloudPlatform

Your GitHub is a portfolio — treat it like one

187 public repos: consistency and good READMEs matter more than any single flashy project.

GitHubOpen Source

Why I ship static-first when I can

Static HTML is still undefeated for content sites — here's how I decide when to reach for it.

AstroPerformance

FAQ

Quick answers

Common questions about working together.

Full FAQ →
What do you actually do?

Network & infrastructure engineering (Linux, MikroTik, BGP, virtualization), cloud/platform backend (Go, PostgreSQL, Redis, APIs), and founding Kilat Cloud. I also build web apps when the product needs it.

What is Kilat Cloud?

Kilat Cloud (PT Kilat Cloud Indonesia) is the cloud infrastructure platform I founded — compute, networking, object/block storage, billing, wallet, and automated provisioning with a customer console and admin platform.

How many servers have you managed?

40+ enterprise and dedicated Linux servers in production at SANAK CYBER, plus virtualization (Proxmox, ESXi), MikroTik networking, and out-of-band hardware management (iDRAC, iLO).

What's your typical timeline for a project?

Infrastructure engagements range from days (storage migration, audit) to ongoing retainers. Web/platform builds: 3–10 weeks depending on scope. I give a clear estimate after the first call.

Let's work together

Have a project in mind, a problem to solve, or just want to say hi? I read every message and reply personally.

Contact meRead the FAQ