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Backend & Platform Engineer · Tainan, Taiwan
DF Wu
Backend and platform engineer connecting event-driven research, production delivery, and home-lab operations.
Reliable services after the demo About
I am a software engineer and service developer with an M.S. and B.S. in Computer Science and Engineering from National Taiwan Ocean University. My strongest through-line is reliability: service design, event flow validation, deployment, and operations.
At SOSELAB, my thesis work became CCTS, a Composite Contract Testing Service for event-driven microservices. It combines Pact contracts, runtime event logs, and state-model validation so testers can detect missing transitions and execution failures instead of trusting happy-path demos.
At ITRI, I worked on the Personal Data Authorization System and a personal-data valuation/payment platform. The work touched logging, payment, blockchain, third-party fintech, CI/CD, infrastructure, and delivery on Azure Kubernetes Service.
Outside formal roles, I run a home-lab with 30+ services across storage, DNS, monitoring, media, albums, and home automation. That environment keeps my platform work honest because I live with the operational consequences.
Education
M.S. / B.S. in Computer Science and Engineering
National Taiwan Ocean University (NTOU) · Graduated 2016 - 2022
SOSELAB — Service-Oriented Software Engineering Laboratory · Advisor: Prof. Shang-Pin Ma
Thesis focus: Event-driven microservices architecture and testing methodology
Publications · IEEE
IEEE · APSEC 2022 — 29th Asia-Pacific Software Engineering Conference · 2022 · Virtual
Testing for Event-Driven Microservices Based on Consumer-Driven Contracts and State Models
Chu-Fei Wu, Shang-Pin Ma, An-Chi Shau, Hang-Wei Yeh
Introduces CCTS (Composite Contract Testing Service), a testing tool for event-driven microservices. Combines consumer-driven contract testing with event-driven state models to record state transitions of event exchange between services and automatically retrieve possible transition paths.
First author · thesis work
IEEE · ICS 2020 — International Computer Symposium · 2020 · Tainan, TaiwanPDAS: A Digital-Signature-Based Authorization Platform for Digital Personal Data
Yu-Te Wang, Chu-Fei Wu, Shang-Pin Ma, Hsuan-Tung Chen, Shih-Ying Chang, ChunSheng Li
Uses Citizen Digital Certificate, digital signature, and blockchain to establish an authorization system (PDAS) for digital personal data. Enables safe, undeniable, and tamper-proof data authorization contracts that address legality, security, and multi-user authorization.
Co-author · PDAS-team core contributor
Conference Papers · Domestic
事件驅動微服務系統之複合契約測試機制 Composite Contract Testing for Event-Driven Microservice Systems 吳朱飛、馬尚彬、邵安祺 2022 台灣軟體工程研討會 (TCSE) · 臺北 · 政治大學 · 2022 Award · 最佳中文論文獎 · Best Chinese Paper Award
數位個人資料授權之計價與雙向支付平台之系統設計 Pricing and Bidirectional Payment Platform for Digital Personal Data Authorization 馬尚彬、陳宣同、吳朱飛、王宇德、黃郁文、張仕穎 2021 全國計算機會議 (NCS) · 臺中 · 東海大學 · 2021
基於數位簽章之個資授權平台設計 Design of a Digital-Signature-Based Personal Data Authorization Platform 馬尚彬、陳宣同、張仕穎、吳朱飛、王宇德、陳筱蓉、李昀陞 2020 台灣軟體工程研討會 (TCSE) · 嘉義 · 嘉義大學 · 2020
Awards
Award · Best Chinese Paper Award · 最佳中文論文獎
2022 台灣軟體工程研討會 (TCSE) — for "事件驅動微服務系統之複合契約測試機制"
2022
Research Highlights
- Designed and implemented CCTS — an 8k+ LOC Spring Boot service combining Pact consumer-driven contracts, RabbitMQ event logs, MongoDB persistence, and state-model assertions for event-driven microservices
- Validated CCTS against execution-failure and common-error scenarios; the work became an IEEE APSEC 2022 paper and received the 2022 TCSE Best Chinese Paper Award
- Core contributor on PDAS and the personal-data valuation/payment platform — a 40k+ LOC AKS-delivered system touching logging, payment, blockchain, third-party fintech, CI/CD, and infrastructure
- Received the 2022 Best Chinese Paper Award at the Taiwan Conference on Software Engineering for the CCTS research
- Two IEEE international publications (APSEC 2022, ICS 2020) plus three domestic-conference papers across event-driven microservice testing and personal data authorization systems
Metrics
127
Repositories
605
Contributions/yr
2
IEEE Papers
23
Merged PRs
Stack
JavaGoPythonShellTypeScriptJavaScriptCSolidity
Spring BootGinDjangoNode.jsExpressAngularVueDockerLinuxNginxJenkinsKubernetesAKSESXiUnraidTrueNASMongoDBMariaDBMySQLRedisPostgreSQLSQLiteRabbitMQKafka
Microservices architectureEvent-driven designConsumer-driven contract testingDevOps & CI/CDHome-lab operations
Projects
Java · Spring Boot · RabbitMQ · MongoDB
CCTS
Composite Contract Testing Service — my NTOU thesis system and APSEC 2022 paper implementation. It combines Pact contracts, event-log sequence validation, and state-model checks to catch missing transitions and execution failures in event-driven microservices.
Java · Spring Boot · Docker · Fly.ioHideReplier
Anonymous Discord reply bot built for the NTOU CS Discord context. It grew from a course project into a containerized service with CI/CD, Docker Hub image flow, and Fly.io deployment.
Docker · Linux · NAS · MariaDB · SDNmyServices
Home-lab service configuration and operations notes. The broader environment runs 30+ services across storage, DNS, monitoring, media, albums, and home automation with VM/container integration.
Shell · Docker · IPMI · ESXi · NVIDIAiDRACFanSpeedControl
Dell PowerEdge fan control through iDRAC/IPMI with Docker deployment, NVMe/GPU temperature inputs, configurable thresholds, and a recent README/code audit around fail-safe behavior.
Experience
Research Assistant · Thesis Author · SOSELAB, NTOU CSE
Designed and implemented CCTS — a contract-testing framework for event-driven microservice systems. Published at IEEE APSEC 2022, received the 2022 TCSE Best Chinese Paper Award, and maintained related PoC services for orchestrator/payment/points/logging flows.
2020 – 2022
Software Engineer Intern · Industrial Technology Research Institute (ITRI) · PDAS-team
Researched, designed, implemented, and delivered personal-data authorization and valuation/payment systems. Worked across decentralized architecture, microservices, event-driven design, CI/CD, security, blockchain, third-party finance, AKS deployment, and delivery documentation.
Jul 2021 – Dec 2021
MIS / Internal Systems Maintainer · Ming-Chyuan Ltd.
Maintains and modernizes digital systems for CNC manufacturing workflows, moving legacy products toward more reliable internal architecture while targeting high availability.
Jul 2012 – Present
Teaching Assistant · National Taiwan Ocean University
Helped migrate legacy course content into a newer content-management workflow and supported professors with lesson design and assigned customization.
After graduation
Open-source Collaborator · g0v civic tech community · public OSS projects
Contribute across personal infrastructure, team projects, and public OSS workflows. Pattern: cleanup, integration, correctness.
Ongoing
Open Source
Cleanup Quality refinement for maintainable iteration stanley2058/lilac-mono #5 Integration Custom Tavily API endpoint support stanley2058/lilac-mono #4 Feature Exa web search provider integration stanley2058/lilac-mono #1 i18n Traditional Chinese localization and documentation Minidoracat/mcp-feedback-enhanced #138 Fix Documentation correctness yym68686/ChatGPT-Telegram-Bot #111 Infra Custom domain registration is-a-dev/register #19293
Role Fit
Backend Engineer
Service delivery with microservice, event-driven, API, messaging, and persistence experience
CCTS, PDAS, HideReplier
Platform Engineer
Deployment-aware engineering across containers, Linux, storage, network, and operational automation
HomeLab, AKS delivery, iDRACFanSpeedControl
Systems-Oriented SWE
Practical architecture decisions under research, customer-delivery, and public collaboration constraints
SOSELAB, ITRI, OSS contributions
First 90 Days
Month 1 Map architecture boundaries. Find where the team loses time.
Month 2 Small, targeted fixes. Reduce friction before adding features.
Month 3 Measurable reliability gains. Nobody stayed late because of my code.
Beyond Code
Event-driven distributed systemsHome-lab infrastructure and self-hostingCivic tech (g0v community)Archery — former university club leader
Looking for reliable execution?
I build systems that stay standing after the demo. Let's connect.
Portfolio intelligence layer
Research evidence, APIs, charts, and blog-grade operating notes.
This shared layer turns every variant into a richer portfolio surface: API endpoints, command search, live GitHub enrichment, article cards, timeline context, and machine-readable data.
GitHub public API slot
The client can fetch current public profile data without requiring secrets. If the network fails, static evidence remains complete.
Static fallback 127 repositories / 23 merged PRs
Feature coverage
Static JSON APIs all variants
Command palette all variants
Live GitHub fetch progressive enhancement
Chart layer all variants
Documentation pack ten variants
Proof distribution
Context map
Internal systems under real business constraints
Ming-Chyuan MIS work creates a long-running baseline: software has to survive legacy systems, manufacturing workflows, and maintenance pressure.
Computer science training at NTOU
B.S. and M.S. work converge on service-oriented architecture, event-driven testing, and maintainability under research constraints.
CCTS and SOSELab research line
CCTS turns consumer-driven contracts, event logs, and state models into a composite test service for event-driven microservices.
ITRI PDAS delivery work
Personal-data authorization and valuation/payment platform work spans logging, payment, blockchain, CI/CD, fintech integration, and AKS delivery.
Home-lab and public collaboration
Self-hosted systems, server automation, and public PRs keep the engineering habit grounded in operational feedback.
Engineering journal
Blog-grade essays distilled into portfolio proof.
Contracts Are Only Useful When They Meet Runtime Evidence
CCTS matters because it connects contract definitions with event-log paths and state-model assertions, closing the gap between interface agreement and actual behavior.
CCTScontract testingevent-driven systems
Delivery Documentation Is Architecture Work
The PDAS work shows why deployment, CI/CD notes, infrastructure constraints, and customer handoff are not afterthoughts; they decide whether the system can be trusted.
PDASAKSCI/CD
A Home-lab Keeps Platform Taste Honest
Running storage, DNS, monitoring, media, albums, and automation changes how architecture feels: failures become personal, and clarity becomes operational leverage.
HomeLabDockeroperations
Small Open-source PRs Show How Someone Enters a Codebase
Integration, localization, and documentation fixes reveal a practical collaboration style: learn the boundary, reduce friction, and leave a clearer path behind.
OSSintegrationdocumentation