Rodruey Simbul

I’m RodrueyPronounced (rod-ri) 👋
I design and build AI solutions. And I create my own products and share them online!

Applied AI Engineer · AI Implementation · AI Automation Specialist

Based in the Philippines, working with people all over the world.

01Who I am

I’m a problem solver, and I’m really good at it.

I can walk into a business, spot where AI can make a difference, and turn it into results, whether that’s time saved, efficiency, growth, and so much more.

My story is the greatest asset I have. I started in civil engineering, moved into data, then automation, then AI, and that stacked path lets me look at problems from angles others can’t see. I can explain complex AI concepts in simple terms, and I keep honing my craft, my knowledge, and my skills so I can be someone you can trust.

Above all, I just love what I do!

Six DataCamp certifications in data and AI, a degree in civil engineering, a published research paper, and courses in marketing, e-commerce, and more. The rest is on my resume.

Rodruey Simbul, in glasses and a black shirt, smiling slightly.
Rodruey, PH

02What I build

Mostly, three kinds of things.

03What I’ve built

Everything here shipped, is still running, or taught me something. Open any of them for the story.

AI solutions for teams and businesses06

  • A manufacturing client’s numbers sat locked inside a legacy ERP nobody could see into. Now the data gets pulled out, cleaned up, and put on 40-inch 4K screens across the office, machine shop, assembly, finishing, and vehicle tracking. A system nobody can see is a system people keep checking by hand.

    One Next.js codebase. Live ERP integration runs six reports in parallel with Promise.allSettled, with mutex-protected token refresh and automatic retry. A custom circle-packing layout for the office view, and a single CSS-transform scaling system that keeps every layout exact from 4K down to tablet. Each dashboard ships with a CLAUDE.md documenting its architecture, data flow, and invariants.

    When
    2025 to now
    Built with
    Next.js, TypeScript, React-Leaflet, ERP API, Claude Code

  • A cross-platform internal app for a design firm, on iOS, Android, and desktop, replacing fragmented manual workflows. Offline-first with ERP sync, full CI/CD pipelines, and careful data cleaning and request handling underneath.

    When
    October 2025 to now
    Built with
    Cross-platform, CI/CD, ERP API, Claude Code

  • Prospect research that used to take a team several days, started with two clicks inside HubSpot. A generative AI pipeline delivers a structured brief the same morning it’s asked for.

    Several days down to under 15 minutes per brief.

    When
    July to August 2025
    Built with
    n8n, HubSpot, Slack

  • A multi-agent system that watches a Gmail inbox and runs triage, drafting, and execution in sequence. Three layers of AI verification run before a draft reaches anyone, and nothing sends until a person approves it from their phone on Telegram.

    Zero emails sent without a person approving first.

    When
    September 2025
    Built with
    n8n, multi-agent, Gmail, Telegram

  • A content agency ran on Google Workspace, Trello, and Slack, and none of them talked to each other. I designed the system that connects them, with a phased rollout and a forecast of what each phase pays back, so they could approve it one stage at a time. No vendor lock-in, so it survives whatever they switch to next.

    When
    August 2025
    Built with
    n8n, Google Workspace, Trello, Slack

  • Three specialised agents: one refines a prompt, one attacks it with adversarial stress tests, one validates what survives. Trial-and-error prompt work becomes a structured, automated loop with feedback you can measure.

    When
    August to September 2025
    Built with
    Multi-agent, red teaming, n8n

Products of my own08

  • A free, open-source tool for Filipinos. Describe your legal problem in plain language and get matched to the exact statute. Not a hallucinated summary: the law itself, with section and citations.

    16,000+ statutes indexed across 140,000+ searchable sections.

    Hybrid BM25 and semantic search across Republic Acts, Presidential Decrees, Executive Orders, Batas Pambansa, and Commonwealth Acts. No login. Free forever. The thesis is simple: laws are public data, every country publishes them, we just make them findable.

    When
    2026 to now
    Built with
    Python, SQLite FTS5, Next.js, Docker, Hugging Face

    Try it on Hugging Face

  • A Chrome extension that lets freelancers make professional invoices, proposals, contracts, NDAs, and quotes with no signup, no backend, and no data leaving the browser.

    One-time $49, in place of $200 to $400 a year in subscriptions.

    Offline-first with local AES-256 encryption. Five document types with nine visual styles each, 45 templates, and a Brand Kit that puts your logo, colors, and fonts on everything. Built with Claude Code across the whole lifecycle, plus a companion content site that brings in organic traffic.

    When
    2025 to now
    Built with
    Chrome Extension, Next.js, Tailwind, Claude Code

    freelancedesk.online

    FreelanceDesk homepage: create professional documents in 2 minutes, surrounded by invoice, proposal, contract, and quote previews.

  • A calm anti-distraction tool that catches the reflex instead of walling it off. Type a distracting site and you land on a near-black page asking if this is where you meant to go. One keystroke and you’re back to work.

    A short reflective prompt grants a timed pass, then it quietly re-blocks. An honest focus dashboard shows measured stats: resist rate, time on caught sites, the reasons you typed. Everything stays on your machine. No accounts, no servers, no tracking.

    Built with
    Manifest V3, declarativeNetRequest, Claude Code

    Chrome Web Store

    Locked-In Café catching a visit to reddit.com with a calm prompt: is this where you meant to go right now? and a Back to work button.

  • A suite of connected Claude skills. One drives Playwright through MCP across YouTube, Google Maps, and websites, extracting only verified contact information from public URLs. No email guessing, and full deduplication across runs. Another turns those leads into personalised Gmail drafts, with a person reviewing before anything sends.

    When
    2025 to now
    Built with
    Claude Code, MCP, Playwright, Gmail, n8n

  • Six coordinated Claude skills covering a seven-day content strategy, keyword research, MDX writing, SEO and E-E-A-T quality gates, and auto-indexing through the Google Indexing API and Bing IndexNow on every deploy.

    When
    2025 to now
    Built with
    Claude Code, MDX, SEO

  • A full-stack SaaS that pairs a deterministic rules engine with AI market intelligence (events, weather, holidays, occupancy trends) to recommend nightly prices across a 60-day horizon. Built solo as a deep dive into hybrid pricing architecture. Not for sale.

    A sub-50ms rules engine with weekly AI insights per market, seven pricing factors, and min and max guardrails. Better Auth, Stripe subscriptions, Drizzle ORM on Neon Postgres, and a mock Airbnb integration.

    Built with
    Next.js, Postgres, Stripe, Drizzle

    Watch the demo

    PriceFlow landing page showing an AI-powered revenue optimization dashboard.

  • A gamified income tracker. Each chicken is an income stream, active or passive, racing toward $1M on a side-scrolling pixel track. Around it: to-dos, a Pomodoro timer, daily goals, streaks, and a journal with a time capsule. Built solo as a motivation engine.

    Canvas pixel art with a particle engine and chicken moods, the timer in a web worker, push notifications through Vercel cron, and Supabase Postgres with row-level security. 12,460 lines across five phases.

    Built with
    Next.js, Supabase, Canvas, Zustand
    Four pixel-art chickens named for income streams racing across a green side-scrolling track toward a $1M goal.

  • An end-to-end system that turns long-form video into short-form clips. Whisper for speech, TransNetV2 for shot boundaries, and custom adaptive weighting with fuzzy logic deciding what makes the cut.

    35 to 40 minutes instead of 2 to 3 hours, with 70 to 80% of picks matching a human editor’s.

    When
    October 2024 to January 2025
    Built with
    Python, Whisper, TransNetV2

The code lives on GitHub, open models and demos on Hugging Face, launches on Product Hunt.

04How I got here

None of it was planned.

But every step was preparing me for the next one. I just didn’t know it at the time.

  1. Civil engineering

    Where I discovered my passion for teaching and found my edge: I learn insanely fast, I can apply what I learn right away, and I look at problems from different angles. Plus a lot of math and problem solving.

    BS Civil Engineering, Don Honorio Ventura State University, 2020 to 2025. Led and published a study on soil permeability.

  2. Data

    I realized I wasn’t cut out for structures. I was drawn to insights, and there’s something almost mystifying about data. It’s also the foundation of all AI work. In civil engineering I worked with foundations in the physical world. Data turned out to be the digital one. So I learned everything I could…

    Certified by DataCamp: Data Literacy, 2024. SQL Associate, 2024. Data Analyst Associate, 2024. Python Data Associate, 2025.

  3. AI

    This is where I found my calling. I needed to automate a process in my own business, stumbled into AI automation, and from there things just snowballed. I built all kinds of projects, then advised on and built AI solutions for businesses: strategic plans, roadmaps, audits, RAG systems, AI applications, and so much more. And the one thread running through all of it? A solution to a problem.

    Certified by DataCamp: AI Fundamentals, 2024. AI Engineer for Data Scientists Associate, 2025.

  4. Software and products

    AI changes fast, and for a lot of it there’s no clear roadmap. I wanted to be the best at this and deliver solutions and products I could be proud of. So I learned proper software development by building actual software: evaluation and reliability practices, full-stack development, APIs and databases, CI/CD and deployment, authentication and payments, and documentation the next person can pick up.

    FreelanceDesk, Locked-In Café, LawMatch, and software for clients. 2025 to now.

  5. AI solutions

    Now I use the entirety of my skill set to design and build AI solutions for businesses, with a focus on evaluation and reliability.

    2026.

  6. Building in public

    I also document the work and teach it, and I want to keep growing as a speaker and build a bigger presence online. In short, I want to turn my five-star social skills into ten stars!

    YouTube, LinkedIn, and X.

05What I’m doing now

Right now, mostly building.

Building
Business infrastructure on n8n.
Learning
Mathematics for Machine Learning.
Reading
AI Engineering, by Chip Huyen.
Open to
New projects.If you have an AI solution you want built for your business, drop by my inbox!

Updated September 2026

06Off the keyboard

When I’m not building.

Music
I play five different instruments.And the 86 soundtrack is my favorite playlist. I love orchestral music.
Games
Mobile games: Wuthering Waves, and mostly Wild Rift.
Books
I read tons of them.Favorite genre: Eastern fantasy.
Staying active
I run, bike, swim, lift, and a lot more.Send me an email if you want to know more about them, lol.

07Where I’m going

More products of my own, more skills (going deeper into design engineering), a deeper understanding of AI engineering, and getting better at content creation. And above all, to be worthy of the trust people give me when we work together.

I build. I learn. I experiment. I ship. I document. I share. I keep moving.

08Say hello

Want to build something, or have a chat? Open to both!

Based in the Philippines.