Mark Sio

I'm

About

A tech enthusiast driven by a passion for solving real-world problems through innovative solutions in IT, Cloud, and Software Development.

Mark Sio Profile

DevOps / Cloud / Network / IT Engineer & Full Stack Developer

Versatile tech professional with hands-on experience in system administration, cloud infrastructure, cybersecurity, and web development.

I specialize in bridging the gap between development and operations, ensuring secure, scalable, and efficient systems.

Facts

Committed to excellence with a strong track record in delivering value to clients, handling multiple projects, and maintaining high service standards.

Happy Clients Delivered value-driven solutions to over 238 clients across various industries.

Projects Completed over 120 projects, including network deployments, cloud setups, and web development.

Hours Of Support Over 4,550 hours dedicated to providing technical support and maintaining critical systems.

Hard Workers Collaborated with 28 dedicated professionals in multidisciplinary teams to achieve project goals.

Skills

Proficient in DevOps tools, cloud platforms (AWS, GCP, Tencent Cloud, Huawei Cloud), networking, cybersecurity, and full-stack development.

AWS 75%
GCP 70%
Tencent Cloud 100%
Huawei Cloud 60%
RDS 85%
S3 90%
CloudFlare / CDN 90%
Linux 85%
NGINX / Openresty / Apache 85%
Docker 85%
Kubernetes 75%
GitLab 80%
GitLab CI/CD 90%
GitHub 80%
ELK 85%
Zabbix 85%
Grafana & Prometheus 85%
Network (WAN / SD-WAN / LAN / VLAN) 85%
FortiNet FortiGate Firewall 95%
Aruba / HPE Layer 3 Switch 90%
Aruba Layer 2 Switch 95%
Aruba Access Point 95%
Ubiquiti Switch 95%
Ubiquiti Access Point 95%
Mikrotik Switch 75%
Cisco Switch 75%
DNS & DHCP Server 85%
IT Security 75%
HTML 100%
CSS 90%
JavaScript 70%
PHP 75%
Java 70%
Python 85%
Bash / Shell Scripting 90%
MySQL 90%
MongoDB 80%
Redis 80%
WordPress / CMS 60%
Photography & Videography75%

Resume

Career Objective

  • DevOps and Cloud Infrastructure Engineer with hands-on experience across AWS, GCP, and on-premise systems.
  • Strong foundation in network engineering with a track record of supporting secure, high-availability environments.
  • Skilled in delivering automation-driven solutions to streamline deployments and operations.
  • Focused on optimizing cloud and network performance while reducing operational costs.
  • Committed to continuous improvement, secure deployments, and scalable infrastructure design.

Professional Experience

DevOps / Cloud Support Engineer

June 2024 – Present

UP DevLabs

  • Designed and maintained scalable server infrastructure across cloud platforms (AWS, GCP, Tencent Cloud) and on-premise environments to ensure high availability and performance.
  • Led complex server and data migrations, including AWS to on-premise transitions, Tencent Cloud migrations, and inter-office physical server relocations—executed with minimal downtime and increased operational efficiency.
  • Planned and deployed IT infrastructure for new office setups, including firewalls, network switches, access points, and cloud service integration.
  • Implemented automated deployment pipelines and Infrastructure as Code (IaC) using CI/CD tools, streamlining environment provisioning and reducing manual configuration errors.
  • Engineered comprehensive domain and website monitoring systems to track domain registrations, SSL expirations, and uptime. Alerts were integrated with Telegram and Slack, with logs stored in MongoDB for auditing.
  • Automated domain monitoring and server health checks using Python scripts and cron jobs to proactively detect issues.
  • Scaled Kubernetes clusters by adding server nodes and migrating pods, enhancing application reliability and load handling.
  • Monitored and resolved critical production issues, such as Dev Logstash and Kubernetes (Kuboard) crashes, maintaining system uptime and availability.
  • Utilized monitoring tools like Zabbix, Prometheus, Grafana, and AWS CloudWatch for proactive issue detection and performance optimization.
  • Optimized cloud costs and performance by continuously monitoring resource usage and billing across environments.
  • Configured NGINX and OpenResty as high-performance reverse proxies and load balancers, implementing SSL termination, HTTP/2, rate limiting, and advanced caching strategies to improve traffic handling.
  • Configured and managed Windows Server environments, including ASP.NET, IIS, Microsoft SQL Server, RabbitMQ, and Redis on GCP-based infrastructure.

Network Engineer / IT Executive

March 2021 – June 2024

Careglove Global Sdn. Bhd. (Subsidiary of CAREPLUS GROUP BERHAD)

  • Managed and supported IT infrastructure including servers, networking equipment, CCTV, VOIP systems, and access control across multiple sites.
  • Led the planning and implementation of network upgrades, cybersecurity improvements, and system automation projects.
  • Provided hands-on support for desktop setups, software installations, and internal web systems.
  • Produced video content and maintained company websites as part of broader IT responsibilities.

On-Site Support Engineer

Jan 2020 – Dec 2020 (1-Year Contract)

Sunway Computer Services Sdn. Bhd.

  • Provided technical support for Wi-Fi connectivity at Sunway University Residence.
  • Ensured consistent, high-quality Internet access for students and residents by resolving network-related issues efficiently.

Intern – Network Operations

Jan 2022 – Mar 2022 (3 Months)

Sunway Digital Wave Sdn. Bhd.

  • Maintained and configured network infrastructure across Bandar Sunway, including Access Points, Switches, and Routers.
  • Proactively identified and resolved network issues to ensure minimal service disruption.
  • Contributed to the overall improvement of customer experience by ensuring optimal network performance.

Junior Mobile App Developer

Jan 2018 – Aug 2018 (8-Month Contract)

Visual Solutions (M) Sdn. Bhd.

  • Maintained and enhanced an HR mobile app by fixing bugs and implementing 20+ new features.
  • Independently developed a prototype shopping app using Ionic Framework and ASP.NET.
  • Collaborated in agile development cycles, contributing to both frontend and backend tasks.

Intern – Web Development

Aug 2017 – Dec 2017 (3 Months)

iScholar Sdn. Bhd.

  • Assisted in enhancing the iScholar web platform alongside a senior software engineer and a fellow intern.
  • Resolved key bugs and contributed over 10 system improvements, optimizing usability and stability.
  • Met project deadlines consistently and ensured delivery of quality work under minimal supervision.

Education

Bachelor (Hons) in Information Technology (Computer Networking & Security) - Cybersecurity

2018 - 2020

Lancaster University & Sunway University

  • CGPA: 3.60 (68.07%)
  • Recipient of the Jeffrey Cheah Community Scholarship

Courses & Activities:

Developed a strong foundation in cybersecurity and networking, reinforced by hands-on experiences, professional certifications, and leadership in tech communities.

Diploma in Information Technology

2015 - 2017

Sunway University

  • CGPA: 3.89 (75.06%)
  • Recipient of the Jeffrey Cheah Community Scholarship

Courses & Activities:

Achieved academic excellence while actively participating in leadership, social impact, and youth development initiatives.

Sijil Pelajaran Malaysia (SPM)

2013 - 2014

SMK Sri Utama

  • Science Stream: 6A, 2B, 1C

Activities:

  • Secretary, Koperasi

Other Courses & Activities

  • Attended Management Development Program by Glorified (Facilitator: Nur Ainnee @ Eunee) — Emphasized leadership, strategic planning, and professional growth.
  • Outdoor Expeditions & Mountain Hiking — Demonstrated perseverance and teamwork through:
    • Climbed Mount Kota Kinabalu (Highest peak in Malaysia)
    • Hiked Gunung Datuk Recreational Forest
    • Hiked Gunung Angsi
    • Explored Tip of Borneo – Coastal trekking and cultural experience

These experiences reflect strong discipline, adaptability, and leadership in both professional development and physically demanding environments.

Portfolio

Showcasing selected projects that demonstrate my expertise in web development, mobile apps, network and IT solutions.

  • All
  • App
  • IT
  • Network
  • Web
Rumah Juara Webpage
Advancenlk Webpage
Bookmark URL Webpage
Book Store Webpage

Services

Offering reliable and tailored IT and web solutions for individuals and businesses to elevate your digital presence and operational efficiency.

Resume Webpage

Create a sleek, modern digital resume that showcases your experience, skills, and personality—perfect for job applications or professional networking.

IT Infrastructure

Plan, implement, and manage IT infrastructure for small offices or home setups, including networking, storage, and system configurations.

Personal & Company Branding

Design and develop custom websites, logos, and digital tools to give your brand a professional and memorable identity online.

Resume Consultation & Optimization

Get expert advice and content revamp to make your resume more appealing, ATS-friendly, and impactful for recruiters and employers.

Custom IT Solutions

Need something unique? I provide customized IT solutions, from software setup to tailored automation and system integration based on your needs.

System Security & Uptime

Improve system stability and data protection through smart configurations, firewall setups, and proactive monitoring to ensure business continuity.

Testimonials

See how my work has helped clients on their digital journey.

Working with Mark has been one of the highlights of my professional journey. He’s not only incredibly skilled and knowledgeable, but also consistently reliable, supportive, and a fantastic communicator. Mark brings a positive energy to every project and always delivers with precision and excellence. Truly a colleague you can count on and learn from.

User Profile

Chong Xing Zi

IT Executive of Careplus Group Berhad

Delivered a seamless setup for our company’s internal systems. Professional, responsive, and technically sharp.

User Profile

Yang Kok Kian

COO of NexV Sygnergy Sdn. Bhd. (Subsidiary of CAREPLUS GROUP BERHAD)

Built a wonderful company website for Advanced NLK Sdn. Bhd. that communicates our brand and values clearly. Fantastic work!

User Profile

Neo Teng Yi

CEO/COO of Advanced NLK Sdn. Bhd.

Mark’s knowledge in IT and problem-solving ability really stood out. Always ready to offer the right solution.

User Profile

Yang Kong King

CEO/COO of Shelterguard Multitrading Sdn. Bhd.

Mark was easy to work with and communicated clearly at every step. A true partner in delivering results.

User Profile

Lim Kian Ang

CEO/COO of Annex Computer Sales and Service

Working with Mark was a seamless experience—his clarity in communication, reliability, and collaborative spirit made him an exceptional partner in achieving our goals.

User Profile

Eugene Teow

CEO/COO of Cygnus Technology Solutions

Contact

Got a project in mind or need IT help? Reach out—I’m always happy to chat or assist.

Location:

Avenue 10 8, Jalan Kerinchi, Bangsar South, 59200 Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur

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