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marckengland@brain: ~

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Marck England · Full Stack Software Engineer · Generative AI Engineer

Manila · GMT+8

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I build software that solves real problems.

Shipped to production, used by real businesses every day. This whole page is one: ask me anything about the work.

* ask about my work, projects, or skills, and the graph lights up what I pull from.

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The Brain

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Projects
Experience
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Selected work

Palago

FinTech · Private beta

An agentic advisor calls 15+ live tools and chains up to 5 rounds to answer in context, not guess.

A multi-asset investment platform with AI-assisted analysis, real-time market intelligence, and professional-grade risk controls. Built for retail investors who want institutional-quality tooling. Live in private beta with an invited user base.

  • Agentic AI advisor that calls 15+ live tools (your real portfolio, market data, correlations, dividends, forecasts, stress tests, and crisis scenarios), chaining up to 5 tool rounds to answer in context instead of guessing
  • AI-driven forecasting and buy/sell recommendations backed by risk scoring and geopolitical signals
Next.js 16TypeScriptPostgreSQLPrismaTanStack Query

factsh

Civic Tech · Private

Verdicts come back in seconds, checked against trusted Philippine fact-checkers.

A mobile app for iOS and Android. Share any link or screenshot from any app via the system share sheet. Within seconds, on-device classification triages the claim, and a backend NLP + RAG pipeline checks it against trusted Philippine fact-checking sources. Verdicts come back as Green (verified), Red (debunked), or Gray (needs review), and verified results auto-publish as articles anyone can browse.

  • Event-driven microservices: ingestion, NLP triage, verification, community, and notification services communicate over NATS JetStream, with pgvector RAG for retrieval
  • Share from any app: paste a Facebook post, drop a TikTok link, or hit Share in your browser
React NativeTypeScriptPythonFastAPIExpress

Flowrish

SaaS · Private beta

Build a follow-up cadence once and run it across thousands of leads on autopilot.

A multi-tenant sales CRM that automates the busywork of selling (activity logging, follow-up cadences, lead scoring, and forecasting), then surfaces each rep's single highest-value next action. Reps send and sync email from Gmail or Microsoft 365 / Outlook, call leads in-browser or via click-to-call, and migrate their book in from Salesforce or HubSpot in minutes.

  • Build a multi-step follow-up cadence once, in a step list or a drag-and-drop flow builder, and run it across thousands of leads on autopilot, with AI drafting a personalized email for every prospect
  • Built-in AI assistant answers questions and proposes next actions (log activity, draft a follow-up, update a deal) that reps approve in one click
Next.js 15TypeScriptSupabasePrisma 6Google Gemini

Bakit Kita Iboboto

Civic Tech · In development

165,000+ bills tracked to their authors, and 77 controversies cross-referenced across 2+ outlets.

A platform that puts every Philippine politician's full track record in one place: bills they authored, controversies that follow them, family connections, and how they actually voted. Built on official records and fact-checked sources, so voters decide on data, not campaign jingles.

  • AI chatbot answers questions on any politician and cites official sources for every claim, with admin-switchable models (Claude Opus / Gemini)
  • AI research pipeline fills data gaps via grounded web search, accepting only facts confirmed by 2+ credible sources with full attribution, never unsourced
Next.js 16TypeScriptPostgreSQLPrismaElasticsearch

quire: PDF Compressor & Editor

Dev Tools · Live

Up to 80% smaller files with no visible quality loss, free and without watermarks.

Drop in a PDF, pick how aggressively to compress it, and download a smaller version in seconds, with no visible quality loss. Need to fix a typo? Click any text on the page and edit it like a Word doc. Original fonts, layout, and links stay exactly as they were.

  • Up to 80% smaller files with no visible quality loss
  • Click-to-edit text fixes typos in seconds without rebuilding the document from scratch
PythonFastAPIpikepdfGhostscriptPyMuPDF
Visit live site ↗

Sari-Sari Store POS

Retail · Desktop · Private

Keeps selling through brownouts and flags every peso that does not add up.

A point-of-sale system built specifically for Philippine sari-sari stores. Works through brownouts, turns any phone into a backup scanner, and is engineered to catch the cash that quietly disappears with discrepancy alerts, immutable logs, and daily snapshots that can't be edited away.

  • Optional AI assistant lets owners ask plain-language questions about sales and inventory, with strictly read-only access to store data (OpenAI, Anthropic, or a custom endpoint)
  • Works through brownouts: keeps running offline, syncs everything the moment power returns
ElectronReactTypeScriptSQLitebetter-sqlite3

Numbers from shipped work, not adjectives.

24/7
autonomous support that hands off to your team only when you want it
RAG support agent, live since 2024
5
messaging channels unified into one inbox
WhatsApp, Messenger, Instagram, Telegram, LINE
165K+
congressional bills tracked to their authors
Voter Intelligence Platform
80%
smaller PDFs with no visible quality loss
quire, live in production

What I do.

Four things, done properly. Every engagement ends with software running in production for real users, and here is the work that proves each one.

AI chatbots & agents

Assistants trained on your actual business (products, prices, policies) that answer accurately around the clock and hand off to your team the moment a human replies.

Resolves conversations end to end, escalating only the cases you choose to a human

Try the live terminal ↑

Custom web platforms

CRMs, dashboards, point-of-sale, and internal tools built around how your team actually works. One platform instead of five subscriptions stitched together.

Multi-tenant CRM running cadences across thousands of leads

Autopilot Sales CRM →

Workflow automation

Reminders that send themselves, payments that verify automatically, approvals reduced to one tap. Event-driven pipelines that free your people for real work.

Intake, classification, and reporting automated end to end

Real-Time Fact Checker →

Multi-channel messaging

Every customer conversation from every app in one place, so nothing slips through the cracks and no one switches between five tabs to keep up.

WhatsApp, Messenger, Instagram, Telegram & LINE in one inbox

How it was built →

Experience

Apr 2024Aug 2026

Full Stack Software Engineer · Generative AI Engineer

Intelligence Flow, Inc. (Tech Startup) · Taguig, Metro Manila
  • Pioneer Engineer, First Revenue-Generating Product: independently built the company’s first revenue-generating product during downtime, a 24/7 RAG customer-support agent that autonomously resolves the majority of conversations and escalates complaints, refunds, and complex cases to staff, with automatic handoff the moment a human agent replies (in production since 2024).
  • Omnichannel Messaging Platform: Unified 15+ messaging apps and e-commerce marketplaces into a single inbox behind a pluggable per-channel integration layer with centralized webhook signature verification, so new channels could be added without changing the core.
  • Multi-Tenant SaaS Architecture: Re-architected the platform into a multi-tenant system with strict per-tenant data isolation, encrypted per-tenant credentials, and layered feature-flag and configuration controls.
  • Backend Re-Architecture (Flask → Litestar): Led the migration from Flask to an async Litestar + Piccolo ORM + Granian stack, structured with domain-driven design and a tenant-scoped repository pattern.
  • AI Orchestration & Cost Governance: Built agent orchestration on Pydantic AI across multiple LLM providers (Gemini, OpenAI, Anthropic, OpenRouter), with per-tenant token and cost tracking, configurable spend caps, and a per-tenant model allowlist.
  • Vector RAG Pipeline: Deployed Retrieval-Augmented Generation on PostgreSQL + pgvector with Vertex AI / Gemini embeddings and background ingestion/embedding workers, delivering accurate, context-aware responses.
  • CRM Workflow Automation: Owned end-to-end delivery of a centralized CRM with AI-integrated messaging, replacing manual processes with one-click approval and denial workflows.
  • Vertical Product Build: Delivered an industry-specific vertical on top of the shared platform with profile management, an appointment scheduling calendar, and support ticketing.
  • Automated Appointment Reminders: Built a system that sends reminders 1–2 days before each appointment, improving scheduling reliability and reducing missed bookings.
  • AI Payment Verification: Delivered an AI service that scans receipt images for real-time payment validation and notifies the finance team for confirmation before a payment is marked as paid.
  • Secure Credit & Payments System: Designed a virtual-currency top-up system with voucher support and secure, scalable transaction handling.
  • Frontend Re-Architecture: Rebuilt the web client on React Router 7 (SSR) + React 19 + Vite with TanStack Query, Jotai, Radix UI, Tailwind CSS v4, and i18next internationalization, following atomic design.
  • Generative AI Orchestration (n8n + LangChain): Built low-code n8n + LangChain workflows spanning Gemini and OpenAI for order intake, reply classification, and reporting.
  • Production Hardening & Observability: Instrumented the platform with Sentry, Apitally, and OpenTelemetry, plus Redis-backed caching, rate limiting, and idempotency keys; containerized and deployed to Google Cloud Run.
Jan 2024Apr 2024

Front-End Developer (Freelance)

Innocelf · Phoenix, Arizona
  • Stripe Notification System: Integrated Stripe for real-time updates on payments and transactions.
  • Responsive UI & Growth: Implemented SEO and site-structure improvements plus responsive UI elements to lift search visibility and user interaction.

Stack

The tools of the trade, grouped by where they live in a build.

Languages
PythonTypeScriptJavaScript
AI & LLM Engineering
LLMsVector RAGGraph RAGLangChainMCP (Model Context Protocol)prompt-flow orchestrationGoogle GeminiOpenAINLPn8n
APIs
Meta Graph APIGoogle Workspace APILINE Messaging APITwilio (Voice)DiscordResend
Cloud, DevOps & MLOps
DockerAWSGCPVercelRailwayRenderSupabaseInngestNATS JetStreamCron JobsGit
Security
OAuth 2.0AES-256 encryptiondual two-factor authentication (2FA)Cloudflare Turnstileanti-crawler defensesencrypted per-org credentials
Databases & Search
PostgreSQLMySQLMongoDBSQLitePrismapgvectorElasticsearchRedis (Upstash)IndexedDB
Testing & Environments
JestVitestPlaywrightfast-checkHypothesis (property-based testing)Testing LibraryPostmanJIRAAgile Scrum
Frameworks & Libraries
Next.jsReact.jsReact NativeElectronNode.jsExpressFastAPIFlaskDjangoTailwind CSSshadcn/uiThree.js
Education

BS Computer Science

Pamantasan ng Lungsod ng Maynila · 2019–2023 · OGWA 1.71 · Dean's Lister (2020–2023)

ICT Strand

Metropolitan Medical Center - CAST · 2016–2018
Next project

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Portrait of Marck England
Marck EnglandSoftware Engineer · Generative AI Engineer

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