Welcome to my portfolio
Hi, I'm Dandi Sugiarto
IT Infrastructure and Network professional with 5+ years of experience supporting enterprise IT operations, network infrastructure, and technical support across production environments. Skilled in network troubleshooting, infrastructure deployment, incident management, and maintaining reliable business-critical systems.
Bridging networks, backend, and automation
A snapshot of my experience, what I focus on day-to-day, and what keeps me curious.
IT Infrastructure and Network professional with 5+ years of experience supporting enterprise IT operations, network infrastructure, and technical support across production environments. Skilled in network troubleshooting, infrastructure deployment, incident management, and maintaining reliable business-critical systems.
MTCNA certified with hands-on experience in MikroTik administration, fiber optic networks, Metro Ethernet, and end-user support. Currently expanding expertise in backend development (Golang), cybersecurity fundamentals, and AI-powered automation to build secure, scalable, and efficient IT solutions.
Years of Experience
Companies Worked With
Certifications Earned
Technical Projects
What I work with
Core toolsets across infrastructure, backend development, automation, and security.
IT Support & Infrastructure
- End-User Support
- POS Systems
- Windows & Linux
- IT Asset Deployment
Networking
- TCP/IP & VLAN
- DHCP & DNS
- Fiber Optic
- MikroTik RouterOS
Backend & Development
- Golang
- REST APIs
- Postman
- PostgreSQL & SQLite
Automation & Integration
- n8n
- Supabase Vector
- RAG Pipelines
- Workflow Automation
Security
- Kali Linux
- Nmap
- Gobuster
- Burp Suite
Collaboration & Tools
- HubSpot
- Slack
- Git
- Technical Documentation
Things I've built
Hands-on projects exploring automation, backend development, and security.
AI Knowledge Assistant (RAG)
Retrieval-Augmented Generation workflow built with n8n and a Supabase Vector database, connected to a Telegram bot to answer questions directly from internal PDF documentation.
REST API Development
Backend CRUD REST API built with Golang and PostgreSQL, covering routing, data validation, and persistence, with all endpoints verified through Postman.
Ethical Hacking Lab
Hands-on practice in reconnaissance, enumeration, and basic web vulnerability identification using Kali Linux in controlled, authorized lab environments.
Where I've worked
5+ years across network operations, technical support, and IT infrastructure.
Technical Support
CurrentPT Intersoft Solutions
October 2022 — Present
- Installed, tested, and deployed POS solutions at customer outlets, ensuring system readiness before go-live.
- Performed REST API testing and validation using Postman to verify functionality with development teams.
- Investigated application issues, including missing transactions and data discrepancies, via SQLite Browser.
- Managed technical incidents in HubSpot, ensuring timely resolution and cross-functional coordination.
Network Operations Distribution
PT Supra Primatama Nusantara (Biznet)
October 2018 — October 2022
- Delivered field support for customer access network infrastructure, ensuring stable fiber optic connectivity.
- Installed and configured Customer Edge (CE) devices for Metro Ethernet (Metro-E) services for NOC monitoring.
- Performed SFP replacement, optical power verification, and fiber link troubleshooting at SPOP nodes.
- Supported end-to-end migration from EPON to GPON, including hardware replacement and service validation.
IT Support
PT Megah Sentral Bangunan (Dunia Bangunan)
August 2017 — September 2018
- Provided end-user technical support for hardware, software, and Windows operating systems.
- Installed, configured, and maintained desktops, printers, scanners, and peripheral devices.
- Performed routine system maintenance, software updates, and security patching.
- Executed scheduled data backups to safeguard business-critical information.
Academic background
Bachelor of Computer Science
Mercu Buana University
Graduated 2022
Continuous learning
Certificate images are placeholders — swap in scans/exports of the real certificates anytime.
MikroTik Certified Network Associate (MTCNA)
MikroTik / ID-Network
2026
Golang API Development Workshop
ID-Network
2026
Simple RAG n8n Workshop
ID-Network
2026
Linux Fundamentals Workshop
ID-Network
2025
Linux Basic Certification
ID-Network
2023
Cisco Basic Certification
ID-Network
2023
Basic Networking Certification
ID-Network
2023
Ethical Hacking for Beginners Live Class
Jagoan Siber Codepolitan
2026
Basic CyberSecurity
Jagoan Siber Codepolitan
2026
Let's work together
Have a role, project, or automation idea in mind? Reach out directly, or grab a copy of my CV.