Open to opportunities·Singapore·SGT

Htoo Aung Win.

Cloud & DevOps Engineer

Building reliable infrastructure across networking, cloud, and security.

View work→Get in touch
FocusSRE / Cloud
StackAWS · Terraform
Certs14 active
BasedSingapore
01.// who

About

I work where networks, cloud, and security overlap — the layer that decides whether a system is reliable or fragile. My foundation is in enterprise networking and Linux systems, and I've been steadily moving deeper into cloud infrastructure and automation: AWS, Terraform, observability.

Right now I'm focused on closing the gap between "it works" and "it works at 3 AM during a regional outage." That means infrastructure as code, monitoring that actually catches what matters, and architecture that fails gracefully. I'm aiming for SRE / Cloud Engineering work where reliability is the product.

02.// work history

Experience

  1. System and Network Engineer Intern

    Sep 2025 — Feb 2026

    Zectech Pte Ltd · Singapore

    • Supported availability and reliability of infrastructure systems across multiple client environments
    • Deployed and configured enterprise network infrastructure including Layer 2/3 switches, wireless access points, and endpoint systems
    • Configured and maintained secure connectivity (VPN, firewall policies, NAT) for stable and reliable system communication
    • Used Linux CLI tools for system diagnostics, log inspection, process analysis, and performance monitoring
    • Maintained infrastructure documentation including topology diagrams, configuration backups, and asset inventory

  2. Security System Engineer

    Aug 2025 — Feb 2026

    AGB Communication Co., Ltd · Remote

    • Conducted infrastructure and network security assessments to identify risks impacting system stability
    • Performed log analysis and anomaly detection using SIEM tooling for incident detection and response workflows
    • Evaluated network segmentation, firewall policies, and access controls to improve resilience and reduce risk exposure
    • Collaborated with engineering teams to implement secure infrastructure improvements without service disruption
    • Produced technical reports with risk analysis and remediation strategies
03.// 1 service deployed

Projects

live

Highly Available AWS Web Infrastructure

Multi-tier AWS architecture designed for high availability and fault tolerance across multiple availability zones.

// implementation notes
  • 01Designed VPC with public/private subnets and route tables across multiple AZs
  • 02Implemented Application Load Balancer and Auto Scaling Group for fault tolerance
  • 03Deployed EC2 instances (Linux + Windows) using user-data scripts for automated provisioning
  • 04Configured RDS as managed database layer integrated with the application tier
  • 05Applied security groups, network segmentation, and least-privilege access between tiers
  • 06Monitored resource health and availability with CloudWatch metrics and logs
  • 07Documented limitations of RDS replication under IAM constraints and proposed improvements
  • AWS VPC
  • EC2
  • ALB
  • Auto Scaling
  • RDS
  • CloudWatch
  • IAM

More builds coming soon

04.// tech stack

Skills

Cloud & Infrastructure

  • ▸AWS (EC2, S3, VPC, IAM, CloudWatch)
  • ▸Azure Fundamentals
  • ▸Terraform (IaC)
  • ▸Windows Server
  • ▸Active Directory
  • ▸Microsoft Intune

Linux & Systems

  • ▸Advanced Linux CLI
  • ▸File systems & permissions
  • ▸Process management
  • ▸Networking stack
  • ▸Endpoint deployment

Monitoring & Observability

  • ▸Log analysis
  • ▸SIEM tooling
  • ▸Alert triage
  • ▸Anomaly detection
  • ▸Incident response
  • ▸CloudWatch metrics

Networking

  • ▸Layer 2/3 switching & routing
  • ▸VLANs & inter-VLAN routing
  • ▸TCP/IP, DNS, DHCP
  • ▸VPN (IPsec/SSL)
  • ▸NAT / port forwarding
  • ▸Firewall policy configuration

Security

  • ▸Network security assessment
  • ▸Vulnerability identification
  • ▸Firewall hardening
  • ▸Access control
  • ▸Penetration testing methodology

DevOps Fundamentals

  • ▸Git & branching workflows
  • ▸CI/CD pipeline concepts
  • ▸Infrastructure as Code
  • ▸Technical documentation
05.// 14 certs · 3 honors

Certifications & Awards

[Cloud & Infrastructure]

  • AWS Solutions Architect Associate (SAA-C03)

    AWS

  • HashiCorp Terraform Associate

    HashiCorp

  • AWS Cloud Practitioner

    AWS

  • Azure Fundamentals (AZ-900)

    Microsoft

  • Oracle Cloud Infrastructure Foundations

    Oracle

  • Oracle Cloud AI Foundations

    Oracle

[Networking]

  • Cisco CCNA

    Cisco

  • Fortinet Certified Associate

    Fortinet

  • Ruijie Certified Network Associate

    Ruijie

[Security & Monitoring]

  • Certified Ethical Hacker (CEH)

    EC-Council

  • eCPPT — Network & Application Security

    INE

  • eJPT — Network Security

    INE

  • TryHackMe SOC Analyst L1 (SAL1)

    TryHackMe

  • TryHackMe PT1

    TryHackMe

[Honors]

  1. 2024

    Lenovo Responsible Disclosure — Hall of Fame

    Identified and reported a security vulnerability in Lenovo web infrastructure through responsible disclosure.

  2. 2024

    Cisco Security Hall of Fame

    Identified and reported a security vulnerability in Cisco web infrastructure through responsible disclosure.

  3. 2025

    Cisco NetAcad Riders — Silver Award

    Ranked among top achievers for technical skills and consistent performance in Cisco networking challenges.

06.// open channel

Contact

Got a reliability problem worth solving?

Always interested in talking to teams building serious infrastructure. Internships, junior cloud / SRE roles, or just trading notes — the inbox is open.

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~/contact