Hongtu Zang

About Me

👋 Hi, I’m Hongtu Zang — a Senior R&D Manager and full-stack engineer with over 15 years of experience building cloud platforms,
industrial IoT systems, telemedicine solutions, and high-performance backend architectures.

I focus on designing robust, secure, and scalable systems from the ground up.
My work spans backend engineering, cloud infrastructure, DevOps automation, and full-stack product delivery.

Currently based in Berlin, Germany with a valid Chancenkarte, I’m exploring new opportunities in backend engineering,
cloud platforms, and digital health innovation.

🚀 Summary

  • 15+ years experience in cloud computing, system architecture, and full-stack development
  • Extensive background in high-concurrency backend systems, multi-tenant architectures, and distributed platforms
  • Hands-on experience leading engineering teams and delivering 0-1 products
  • Built multiple healthcare IT solutions including emergency telemedicine and rural health-check systems
  • Deep experience across virtualization, DevOps tooling, and modern cloud-native development

💼 Professional Experience

Citic Cloud Network Co. Ltd — Senior R&D Manager (2017–2025)

Led the end-to-end modernization of Citic’s enterprise cloud platform, covering system architecture, core module design,
DevOps pipelines, and technical leadership.

Key work:

  • Designed a modular AIoT platform (Web of Things) used by industrial clients (SaaS + on-premise)
  • Deployed OPS monitoring systems for hospital operating rooms
  • Rolled out infrastructure used across McDonald’s China stores
  • Co-developed a 5G-based stroke emergency consultation system with Xuanwu Hospital & IBM
  • Built a mobile health-check platform for rural medical vehicles
  • Participated in large-scale annual security drills and custom cloud deployment projects

Achievements:

  • Passed CAICT Trusted Cloud certification
  • Platform adopted in national-level digital initiatives
  • Recipient of Citic Group Technology Innovation Awards

58.com — Senior Software Developer (2014–2017)

Engineered high-traffic backend systems for one of China’s largest online marketplaces.

Highlights:

  • Architected a private cloud using OpenStack Icehouse
  • Integrated Redis, DNS, CI/CD automation for internal cloud workflows

  • Re-designed two core systems handling massive daily traffic:

    • IMC (Information Management Center) — ~4B daily requests
    • UMC (User Management Center) — ~1B daily requests

  • Achieved:

    • 10× performance improvement
    • 60% storage cost reduction
    • 30% network usage reduction
  • Ensured system stability during national promotions with peak loads exceeding 50B/day
  • Unified post & image infrastructure after the Ganji acquisition, building an SOA-based data platform
  • Led cross-datacenter migration with zero downtime

Glodon — Senior Software Developer (2014)

Designed and deployed an OpenStack-based private cloud for multiple business units.

Key tasks:

  • Integrated smart DNS (DLZ), Varnish caching, and VM monitoring
  • Created automated one-click deployment tools
  • Built CI/CD & orchestration pipelines improving delivery speed
  • Unified infra monitoring and release management

Achievement:

  • Delivered a DevOps-ready cloud foundation that accelerated software delivery across teams

Beijing TcloudComputing — Senior Software Developer (2010–2014)

Core developer for Elaster / ElasterStack — a multi-hypervisor cloud infrastructure platform.

Responsibilities:

  • VM orchestration, monitoring, storage automation, provisioning tools
  • Customized Apache CloudStack for enterprise HA (including upstream contributions)
  • Designed a full-stack monitoring solution using Ganglia + heartbeat
  • Developed a control plane supporting XenServer & VMware ESXi
  • Implemented cloud management modules using Python/Django/PostgreSQL
  • Delivered solutions for telecom clients (China Mobile, China Unicom, Chunghwa Telecom)

Achievement:

  • Led multiple product generations, enabling successful commercial deployment across telecom and government clients

🧠 Technical Expertise

System Architecture & Backend Engineering

  • High-concurrency backend design
  • Distributed systems & event-driven architecture
  • Multi-tenant platforms
  • API design (REST, WebSocket, RPC)
  • Fault-tolerance & HA systems

Cloud & Infrastructure

  • OpenStack (Icehouse, Grizzly) — deep experience
  • Docker, Kubernetes, microservices
  • Bare-metal & VM orchestration
  • Cloud deployment automation

DevOps & Reliability Engineering

  • CI/CD (Jenkins, GitLab CI)
  • Deployment automation (Ansible, Puppet, Shell)
  • Monitoring stacks (Prometheus, Ganglia, heartbeat)
  • Security, RBAC, TLS, WAF integration

Frontend & UI

  • Vue.js for dashboards and internal tools
  • SPA architecture, component-based design

Data & Storage

  • MySQL, PostgreSQL, MongoDB
  • Distributed caching (Redis)
  • Message queues (Kafka, RocketMQ)

Virtualization & Hypervisors

  • KVM, XenServer, VMware ESXi
  • Snapshot management, VM takeover, HA

🎓 Education

  • Heilongjiang Institute of Science and Technology
    Bachelor of Engineering — Computer Science (2005–2009)

  • Northern Alberta Institute of Technology (NAIT), Canada
    Certificate — Computer Systems Technology (2005–2008)

📫 Contact

  • Email: zanghongtu2006@gmail.com
  • Location: Berlin, Germany
  • GitHub: https://zanghongtu2006.github.io
  • Personal Site: https://YOUR_GITHUB_PAGES_URL

“Engineering is not only about building systems — it’s about building systems that last.”