ritahuang

Full-stack engineer who came to software after a decade of process and R&D engineering in manufacturing. Part-time at Downshift by design; looking for a full-time role, available now.

- At Downshift (TypeScript/NestJS/React Native): shipped 30+ features end to end and took 260 QA-reported bugs to tested builds in a codebase I joined mid-flight. That's 92 merged PRs across API, web and mobile in 67 working days, each run through a Claude Code plan → review → implement → test pipeline I designed. - Replaced a hard paywall with a metered free tier by merging three plan checks that disagreed into one entitlement resolver. Also built In-App Purchase on iOS and Android through RevenueCat.

- Shipped app-wide dark mode on web, iOS and Android by moving widgets onto design tokens (434 hard-coded colors down to 117).

- Household Tracker (Rails 8.1, Hotwire, Web Push): replaced a family Google Sheet with a shared bill-tracking PWA. It sends daily reminders in each member's time zone that never double-send, has a CSV import that's safe to re-run, and runs ~365 tests in CI.

- Pet Tracker (Rails 8.1, Hotwire Native): turns health-checkup photos into structured records with Gemini vision. Care reminders fall back from Android push to LINE to email.

Re:Ask HN: Who wants to be hired? (October 2026) on Friday October 02, 2026 @12:02AM (#49929712)

Location: Taiwan (GMT+8) — full overlap with EU business hours, US East Coast mornings

Remote: Remote only

Willing to relocate: No

Technologies: TypeScript, NestJS, React, React Native, Ruby on Rails, StimulusJS, PostgreSQL, Tailwind, Git, Heroku

Résumé/CV: https://drive.google.com/file/d/1fVInxwiyuu4mX3hiTltXPavghAy...

Full-stack engineer who spent nine years in manufacturing process/R&D watching production data live and die in unversioned Excel files, then retrained to build the systems that should have existed. Part-time at Downshift by design; looking for a full-time role, available now.

- At Downshift (TypeScript/NestJS/React Native): wiring iOS home-screen widgets to live data, and reworking dashboard drag-and-drop to commit once on drop instead of calling the API on every move.

- Replaced a legacy Excel dataset with a Rails 8 + PostgreSQL app — schema design, data migration, and real-time dashboards in place of manual reports.

- Shipped Gemini-backed pipelines for automated i18n across 3 locales and structured extraction of medical data from uploaded images.

- Built auth from scratch in Rails, including OmniAuth for Google, GitHub, and LINE.

Re:Ask HN: Who wants to be hired? (September 2026) on Friday September 04, 2026 @07:22AM (#49563105)

Location: Taiwan (GMT+8) — work within EU business hours, evening overlap with US West Coast

Remote: Remote only

Willing to relocate: No

Technologies: TypeScript, NestJS, React, React Native, Ruby on Rails, StimulusJS, PostgreSQL, Tailwind, Git, Heroku

Résumé/CV: https://drive.google.com/file/d/1Xy3IrCV_aZx0-rtZL8B3XrwT052...

I spent nine years as a process and R&D engineer in materials manufacturing, watching critical production data live and die in unversioned Excel files. I retrained as a software engineer to build the systems that should have existed. Currently full-stack at Downshift (part-time, TypeScript/NestJS/React Native) — part-time by design, so I'm free to move full-time. Available from October.

- Replaced a legacy Excel-based dataset with a Rails 8 + PostgreSQL application — schema design, data migration, and real-time dashboards replacing manual report assembly.

- Shipped Gemini-backed pipelines for two production problems: automated i18n across 3 locales, and structured extraction of medical data from uploaded images.

- Built auth from scratch, including OmniAuth for Google, GitHub, and LINE.

Re:Ask HN: Who wants to be hired? (August 2026) on Monday August 03, 2026 @11:38AM (#49157206)

Location: Taiwan (GMT+8, limited US/Canada timezone overlap, EU-friendly)

Remote: Remote only

Willing to relocate: No

Technologies: Ruby, Ruby on Rails, JavaScript (ES6+), TypeScript, React, HTML/CSS, StimulusJS, Tailwind CSS, Bootstrap, PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/1ZezO0a1vjAPscsYlPDfGR_XeDg-...

I am a Software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications. I specialize in full-stack architecture, migrating complex legacy processes (like unmanaged Excel data) into modern relational PostgreSQL schemas, and integrating AI workflows.

Highlights:

- Architected a Rails 8 application migrating legacy Excel datasets into PostgreSQL with real-time visualizations.

- Integrated Gemini AI to automate i18n tasks and extract medical data from uploaded images.

- Implemented robust authentication systems including OmniAuth integration for Google, GitHub, and LINE.

Re:Ask HN: Who wants to be hired? (July 2026) on Friday July 03, 2026 @07:23AM (#48773718)

Location: Taiwan (GMT+8, limited US/Canada timezone overlap, EU-friendly)

Remote: Remote only

Willing to relocate: No

Technologies: Ruby, Ruby on Rails, JavaScript (ES6+), TypeScript, HTML/CSS, StimulusJS, Tailwind CSS, Bootstrap, PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/1sJLJmlroI9jO3AcCPe9ggoUySzL...

I am a Software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications. I specialize in full-stack architecture, migrating complex legacy processes (like unmanaged Excel data) into modern relational PostgreSQL schemas, and integrating AI workflows.

Highlights:

- Architected a Rails 8 application migrating legacy Excel datasets into PostgreSQL with real-time visualizations.

- Integrated Gemini AI to automate i18n tasks and extract medical data from uploaded images.

- Implemented robust authentication systems including OmniAuth integration for Google, GitHub, and LINE.

Re:Ask HN: Who wants to be hired? (June 2026) on Monday June 01, 2026 @11:21AM (#48358038)

Location: Taiwan (UTC+8)

Remote: Remote (EU friendly, limited US/Canada hours)

Willing to relocate: Maybe

Languages: Ruby, JavaScript (ES6+), TypeScript, HTML/CSS

Frameworks: Ruby on Rails, StimulusJS, Tailwind CSS, Bootstrap

Tools/DevOps: PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/1sJLJmlroI9jO3AcCPe9ggoUySzL...

Portfolio: https://pet-feeding-tracker-v4.up.railway.app

Hello, I'm Rita, Software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications using Ruby on Rails, PostgreSQL, and Tailwind CSS. Specialized in transitioning complex legacy systems (Excel/Manual processes) into modern full-stack solutions with automated workflows and AI integration.

Looking for: Ruby on Rails Developer/ Fullstack Engineer/ Backend Engineer.

Re:Ask HN: Who wants to be hired? (May 2026) on Monday May 11, 2026 @08:42AM (#48094239)

Location: Taiwan (UTC+8)

Remote: Remote (EU friendly, limited US/Canada hours)

Willing to relocate: No

Languages: Ruby, JavaScript (ES6+), TypeScript, HTML/CSS

Frameworks: Ruby on Rails, StimulusJS, Tailwind CSS, Bootstrap

Tools/DevOps: PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/11plS8evNAqPoN2hJdbR5izabKHM...

Portfolio: https://pet-feeding-tracker-v4.up.railway.app

Hello, I'm Rita, a software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications using Ruby on Rails, PostgreSQL, and Tailwind CSS. Specialized in transitioning complex legacy systems (Excel/Manual processes) into modern full-stack solutions with automated workflows and AI integration.

Looking for: Ruby on Rails Developer/ Fullstack Engineer/ Backend Engineer.

Re:Ask HN: Who is hiring? (May 2026) on Monday May 11, 2026 @08:04AM (#48093921)

Location: Taiwan (UTC+8)

Remote: Remote (EU friendly, limited US/Canada hours)

Willing to relocate: No

Languages: Ruby, JavaScript (ES6+), TypeScript, HTML/CSS

Frameworks: Ruby on Rails, StimulusJS, Tailwind CSS, Bootstrap

Tools/DevOps: PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/11plS8evNAqPoN2hJdbR5izabKHM...

Portfolio: https://pet-feeding-tracker-v4.up.railway.app

Hello, I'm Rita, a software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications using Ruby on Rails, PostgreSQL, and Tailwind CSS. Specialized in transitioning complex legacy systems (Excel/Manual processes) into modern full-stack solutions with automated workflows and AI integration.

Looking for: Ruby on Rails Developer/ Fullstack Engineer/ Backend Engineer.

Re:Ask HN: Who wants to be hired? (May 2026) on Saturday May 09, 2026 @10:58PM (#48080570)

Location: Taiwan (UTC+8)

Remote: Remote (EU friendly, limited US/Canada hours)

Willing to relocate: No

Languages: Ruby, JavaScript (ES6+), TypeScript, HTML/CSS

Frameworks: Ruby on Rails, StimulusJS, Tailwind CSS, Bootstrap

Tools/DevOps: PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/11plS8evNAqPoN2hJdbR5izabKHM...

Portfolio: https://pet-feeding-tracker-v4.up.railway.app

Hello, I'm Rita, a software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications using Ruby on Rails, PostgreSQL, and Tailwind CSS. Specialized in transitioning complex legacy systems (Excel/Manual processes) into modern full-stack solutions with automated workflows and AI integration.

Looking for: Ruby on Rails Developer/ Fullstack Engineer/ Backend Engineer.

Re:Ask HN: Who wants to be hired? (May 2026) on Saturday May 02, 2026 @09:28AM (#47986235)

Location: Taiwan (UTC+8)

Remote: Remote (EU friendly, limited US/Canada hours)

Willing to relocate: No

Technologies: Ruby On Rails, Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars, Bootstrap, Tailwind CSS, Heroku, Render, Git, VS Code, OmniAuth

Résumé/CV: https://drive.google.com/file/d/1s70R5YQDzyx7cFfagbHAJ4oNI9l...

Portfolio: https://pet-feeding-tracker-v4.up.railway.app

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience. Recently, I created an app "Pet Feeder Tracker" using PostgreSQL, Ruby On Rails 8, StimulusJS, Tailwind CSS, OmniAuth(User Authentication), functional test, Gemini CLI to transformed messey datasheet to organized and visualization chart trend.

Looking for: Ruby on Rails Developer/ Fullstack Engineer/ Backend Engineer.

Re:Ask HN: Who wants to be hired? (April 2026) on Friday April 03, 2026 @09:59AM (#47626737)

Location: Taiwan (UTC+8)

Remote: Remote/ Worldwide /can work overlap within CET or work overlap at least 4 hours within EST

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars, Bootstrap, Tailwind CSS

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1-fJ_dcbkppFYoiM4C1_HnR2gL1m...

Portfolio: https://pet-feeding-tracker-v4.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience. Recently, I created an app "Pet Feeder Tracker" using Ruby on Rails 8, Ruby, Tailwind CSS, and PostgreSQL to transform unmanaged Excel datasets to a visualization chart.

Re:Ask HN: Who wants to be hired? (March 2026) on Monday March 02, 2026 @11:31PM (#47228072)

Location: Taiwan (UTC+8)

Remote: Remote/ Worldwide /can work overlap within CET or work overlap at least 4 hours within EST

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars, Bootstrap, Tailwind CSS

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/13PlJVHW7pgpM0qUvtCXfLqBeTsk...

Portfolio: https://pet-feeding-tracker-v4.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Tailwind CSS, and PostgreSQL to build the 'Pet Feeder Tracker' deployed on Render. This application is designed to help pet owners discover their pets' eating preferences and visualization of eating trends over time.

Re:Ask HN: Who wants to be hired? (February 2026) on Friday February 06, 2026 @09:44AM (#46913433)

Location: Taiwan (UTC+8)

Remote: Remote/ Worldwide /can work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars, Bootstrap, Tailwind CSS

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/13PlJVHW7pgpM0qUvtCXfLqBeTsk...

Portfolio: https://pet-feeding-tracker-v4.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Tailwind CSS, and PostgreSQL to build the 'Pet Feeder Tracker' deployed on Render. This application is designed to help pet owners discover their pets' eating preferences and visualization of eating trends over time.

Re:Ask HN: Who wants to be hired? (January 2026) on Sunday January 11, 2026 @11:23PM (#46584087)

Location: Taiwan/Asia (UTC+8)

Remote: Remote/ Worldwide /can work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars, Bootstrap, Tailwind CSS

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1vM1q2LVk7Bk14q38P7JKrLKXz1x...

Portfolio: https://pet-feeding-tracker-v3-bv01.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Bootstrap, and PostgreSQL to build the 'Pet Feeder Tracker' and deploy on Render. This application is designed to help pet owners discover their pets' eating preferences and simplify the record-keeping process for feeding.

Re:Ask HN: Who wants to be hired? (January 2026) on Friday January 02, 2026 @10:20PM (#46472485)

Location: Taiwan/Asia (UTC+8)

Remote: Remote/ Worldwide /can work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars, Bootstrap, Tailwind CSS

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1vM1q2LVk7Bk14q38P7JKrLKXz1x...

Portfolio: https://pet-feeding-tracker-v3-bv01.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Bootstrap, and PostgreSQL to build the 'Pet Feeder Tracker' and deploy on Render. This application is designed to help pet owners discover their pets' eating preferences and simplify the record-keeping process for feeding.

Re:Ask HN: Who wants to be hired? (December 2025) on Wednesday December 10, 2025 @02:51AM (#46215214)

Location: Taiwan/Asia (UTC+8)

Remote: Remote/ Worldwide /can work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1sJLJmlroI9jO3AcCPe9ggoUySzL...

Portfolio: https://pet-feeding-tracker-v3-bv01.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Bootstrap, and PostgreSQL to build the 'Pet Feeder Tracker' and deploy on Render. This application is designed to help pet owners discover their pets' eating preferences and simplify the record-keeping process for feeding.

Re:Ask HN: Who is hiring? (December 2025) on Tuesday December 09, 2025 @10:49PM (#46213868)

Location: Taiwan/Asia (UTC+8)

Remote: Remote/ Worldwide /can work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1sJLJmlroI9jO3AcCPe9ggoUySzL...

Portfolio: https://pet-feeding-tracker-v3-bv01.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Bootstrap, and PostgreSQL to build the 'Pet Feeder Tracker' and deploy on Render. This application is designed to help pet owners discover their pets' eating preferences and simplify the record-keeping process for feeding.

Re:Ask HN: Who wants to be hired? (December 2025) on Monday December 01, 2025 @09:35PM (#46116717)

Location: Taiwan/Asia (UTC+8)

Remote: Remote/ Worldwide /can work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1sJLJmlroI9jO3AcCPe9ggoUySzL...

Portfolio: https://pet-feeding-tracker-v3-bv01.onrender.com/

Hello, I'm Rita. I am an independent software engineer with over 4 years of full-stack development experience, specializing in building clear, maintainable, secure, and reliable applications with Ruby on Rails (RoR) and postgreSQL.

I recently used RoR 8, Bootstrap, and PostgreSQL to build the 'Pet Feeder Tracker' and deploy on Render. This application is designed to help pet owners discover their pets' eating preferences and simplify the record-keeping process for feeding.

Re:Ask HN: Who wants to be hired? (November 2025) on Monday November 03, 2025 @10:12PM (#45807092)

Location: Taiwan/Asia (GMT+8)

Remote: Yes, and can also work overlap at least 4 hours within EST or work within CET

Willing to relocate: No

Technologies:

- Languages & Frameworks - Ruby, TypeScript, JavaScript, PostgreSQL, HTML/CSS, Ruby On Rails, Sinatra, Chartkick, StimulusJS, jQuery, Handlebars

- Other: Heroku, Render, Git, VS Code, User Authentication & Authorization

Résumé/CV: https://drive.google.com/file/d/1sJLJmlroI9jO3AcCPe9ggoUySzL...

Portfolio: https://pet-feeding-tracker-v3-bv01.onrender.com/