Ming-Tung Hong
Backend Engineer specializing in integrations, automation, and operational systems 7+ years experience · Python / Django
Berlin based · Remote friendly
Selected Projects
Selected backend systems, integrations, and tools.
Work history and roles → LinkedIn
DevDiplomat
A lightweight tool for refining GitHub pull request communication.
AI-assisted tool that improves pull request review quality by turning unclear feedback into precise, structured pull request comments directly inside GitHub.
- Improves clarity and structure of code review feedback in early testing
- Uses AI to transform unclear review comments into more actionable suggestions
- Integrates directly into GitHub PR review workflow via a browser extension
Built as a production-grade system demonstrating full-stack, backend engineering, authentication, billing, and browser-based integration.
View more → DevDiplomat
Django · Python · Chrome Extensions · GitHub OAuth · AI Integration · Stripe · Fly.io · UptimeRobot
Apr 2026 – Present
django-fsm-freeze
Data immutability utilities for Django models.
Open-source library for enforcing immutable state transitions in django-fsm.
Designed to improve workflow integrity in stateful systems by preventing unintended model mutations in production.
Maintained as an open-source package on GitHub and PyPI.
View more → django-fsm-freeze
Django · Python · Poetry · GitHub Actions · PyPI publishing
Jun 2021 – Present
How I help teams
- Build reliable integrations between internal and third-party systems
- Design backend systems for logistics and fulfillment operations
- Automate manual business processes and repetitive operations
- Implement billing, invoicing, and payment workflows
- Create data extraction and document-processing pipelines
Domain Expertise
- Logistics, fulfillment, and operational systems
- E-commerce and payment integrations
- Internal tools and business automation
- Operations and process improvement
Technical Stack
- Backend: Python · Django · Flask · SQLAlchemy · PostgreSQL
- Deployment: Docker · GitHub Actions · Fly.io
- Infrastructure (light usage): AWS · GCP
About
I build backend systems focused on operational workflows, integrations, and long-term maintainability.
Over the years, I’ve worked on logistics and fulfillment platforms, payment and invoicing systems, internal tools, and integrations. I’m particularly interested in software that supports real operational processes and helps teams reduce manual work.
My approach emphasizes simplicity, reliability, and clear system design. I prefer building systems that are understandable, maintainable, and practical for teams to operate over time.
Outside day-to-day backend engineering, I’m also interested in practical uses of AI for automation, integration and developer experience.
Contact
Available for backend engineering and system integration projects.