Vibe Code Rescue · AI Agent Onboarding · Where AI ends, I begin
I'm a 5+ year software engineer.
AI can compute logic and write code, but can't add tests, write docs, deploy to prod, or find customers.
The remaining 90% engineering reality — I'll guide you through in 100 days, all public, all copyable.
Mark
Mentry is a software learning brand centered on engineering discipline.
Full-stack development, software architecture, test automation, SEO and security analysis are the fields I have invested in over the years. I have also served as a Scrum Master for agile teams — an experience that taught me: great systems are never built by one person alone.
My engineering philosophy first took shape during graduate research. At NTUT (CS), I designed and implemented a Robot Framework-based test automation framework that reduced test execution time to 10% of the original and achieved 100% test coverage. That research showed me —
"An engineer's real edge is not in learning more syntax,
but in seeing that 'repetitive work can be turned into a tool.'"
In industry, I have worked across backend services, full-stack web, test automation and DevOps. From API design, database modeling, CI/CD pipelines, to production deployment — every stage convinced me of the long-term value of "engineering discipline" and "architectural thinking".
In recent years, AI has changed how we write code — and made one issue more visible: vibe coding produces output, but cannot be maintained. Many non-engineering developers ship products quickly with AI, only to get stuck the next time they need to change them. I believe: AI is a great helper, but engineering discipline is what keeps a system alive over time.
I also work deeply on AI Agent integration — from RAG knowledge bases, Tool Use, to multi-agent orchestration. I help teams transform "AI wrote a snippet" moments into trustworthy, maintainable, scalable automated workflows.
This site is the distillation of years of method. I believe: beginners do not lack more tutorials — they lack someone who has walked the same road. May the content here help you skip the detours I once took.
AI writes faster than you, 24/7. Founders make MVPs in 2 weeks with Cursor, PMs build tools with Claude, students write portfolios with ChatGPT. "I can write code" is no longer an engineer's badge — making code into a product is.
Starting-stuck (can't read AI) → Mid-stuck (fix one, break ten) → Shipped-stuck (afraid to touch prod) → Scaling-stuck (add payment, SEO). Regardless of background or job — founders, PMs, students, engineers all experience this. Mentry walks you through all 4 gates.
100 tutorials can't beat one person actually making it. I'm spending 100 days building Mentry — choosing tools, writing copy, doing SEO, integrating LINE, posting IG, getting first customer — every step public. You watch = you learn.
AI can write code, but won't tell you "what to write", "how to price", "how to market", "who's your customer". Product judgment — the skill engineers most need, the one AI can never replace. That's what Mentry writes about.
"I can't understand what AI tells me", "Can't set up the environment", "Tutorials don't work for me".
At this stage you don't need a course — you need someone to walk through step 1 with you.
"AI fixes bug but creates more bugs", "Code is a mess", "Adding features breaks everything".
30 minutes of conversation can save you 3 months of wandering.
"It runs, but I'm too scared to touch it", "Prod differs from local", "Next engineer can't take over".
Full 7-step rescue SOP: read → tests → refactor → docs → CI/CD.
"Want to add payment / membership", "Want to build AI Agent", "Want SEO + i18n", "Want mobile app".
This needs architecture + long-term partnership, not a 30-min call.
Switching careers, targeting big tech, stuck on problems? I don't write answers — I coach problem-solving thinking ─ LeetCode, whiteboard, behavioral, system design — all in one. Full session sparring with a 5+ year engineer.
Book / Consult on LINE →À la carte: Resume audit NT$2,000 · Behavioral Mock NT$2,500 · Whiteboard Mock 90min NT$3,500 (incl. recording + report) · System Design Coaching 90min NT$3,800
From code to system-level thinking
The side users actually see
Stable services, elegant interfaces
Ship with confidence, deploy with ease
The work that begins after launch
Engineers are also part of a team
RESTful API Development: Designed and implemented REST APIs for the system management interface, delivering reliable external services.
Backend Service Integration: Developed IPC / DBus interfaces across services, integrating different subsystems.
Test Automation: Designed unit and integration test pipelines to improve service correctness and stability.
Code Quality Engineering: Introduced Clang-tidy / Clang-format static analysis and established a regular Code Review cadence.
CI Automation: Helped the team build a CI pipeline for automated testing and quality gates.
System Development: Owned end-to-end product systems from planning to launch, including low-level control logic and protocol integration.
System Stability: Established troubleshooting SOPs and test verification flows to keep products in optimal shape during mass production.
Cross-team Collaboration: Regularly worked with supply chain, QA, and PM to provide technical solutions and drive project delivery.
Project Management: Set timelines, estimated effort, executed plans, and ran milestone reviews.
Technical Depth: Comfortable with various communication protocols and low-level system integration — debugging from hardware IO up to top-level APIs.
Led three projects to successful mass production and delivered multiple others.
C# WinForm Data Processing: Built batch data processing in C# WinForm, generating concise reports from large datasets for better readability.
WinForm to Web Migration: Migrated WinForm applications to ASP.NET-based web apps and built API interfaces, improving flexibility and scalability.
ASP.NET API Development: Delivered stable backend services.
MS SQL Server Data Management: Supported access and management of large datasets.
Data Visualization Features: Wrote code for data visualization functionality.
Built front-end interactions in JavaScript / HTML / CSS, with low-level data processing in C++.
Test Development: Introduced CI/CD automated testing tools.
Wrote test cases using Robot Framework, Python, and Selenium.
Built a visualization dashboard and analytics tool for user trajectories in XR applications, leveraging survey and behavior data.
A video download and transcoding tool with decoupled front-end and back-end: interactive UI + Node.js stream processing.
Full-stack marketplace with proper MVC architecture — listings, membership, cart, and order flow.
Space management backend integrating sensor data, with access control and reporting to help admins monitor venue status.
Food safety monitoring prototype on Raspberry Pi, integrating sensors and data upload.
Property management service built on Angular, with resident and admin user flows.
NTUT CS · Master's Thesis. Proposes an integrated tool for test case generation and management, reducing test execution time by 90% and achieving 100% coverage in automated testing.
Master Thesis · NTUT 2020A deep-learning-powered smart agriculture application, focusing on image recognition deployment and outcomes in agricultural scenarios.
ICSSE 2018 · International Conference on System Science and EngineeringAn elderly care system combining GPS and behavior detection, helping families track the activity range and abnormal events of dementia patients.
ICSSE 2018 · International Conference on System Science and EngineeringAn agricultural environment monitoring system integrating multiple sensor modules, with a data collection and analysis architecture.
TANET 2017 · National Computer Network ConferenceA MOST-funded research project, selected and presented at the 15th National Conference on Applied Information Technology.
15th National Conference on Applied Information TechnologyWhether you want to learn, find a solution, or build together,
reach out the way that suits you.
Stuck on learning, need a quote, or want to collaborate? Scan the QR or tap the button — LINE is the fastest way to talk.
Add Friend →