I build things that work.
Fullstack developer. Integration architect. Full Stack Engineer at Vértere Global Solutions. Experimenting with product ideas at Tulay Tech on the side.
about
A bit about me
I'm Alysstair — a fullstack developer based in the Philippines with 4+ years of building production systems that actually ship.
I've spent most of my career in the messy middle of software: connecting ERPs to e-commerce platforms, building data pipelines that don't fall over at 3am, and making systems talk to each other when they really don't want to. I've worked with Acumatica, Cin7, Shopify, and BigCommerce — sometimes all in the same project.
Right now I'm a Full Stack Engineer at Vértere Global Solutions, and on the side I run Tulay Tech — an independent product studio where I experiment with business software ideas for Philippine small businesses.
Before that, I was at Four13 Group designing integration systems for US e-commerce clients, at Prosperna building backend services for a multi-tenant SaaS platform serving 1,000+ merchants, and doing contract work on everything from dating apps to Shopify storefronts.
I like hard infrastructure problems, fast teams, and shipping things that people actually use. I don't have a CS degree — I studied Political Science — and I think that's made me a better engineer. I learned to build by building.
When I'm not coding, I'm probably doing water changes for my ranchu goldfish. They're more work than most microservices.
current focus
What I'm experimenting with
Tulay Tech is my side project — an independent product studio where I explore ideas for business software built specifically for Philippine small businesses. The name means "bridge" in Filipino.
Right now I'm in experimentation mode. I'm prototyping product concepts, testing technical architectures, and figuring out which problems are actually worth solving. Nothing is launched yet, and I'm being honest about that — I'd rather ship one thing that works than promise five that don't.
Follow along on the blog if you want to see what I'm trying →
work
Things I've shipped
Multi-Tenant Custom Pricing System
Revamped a custom pricing ETL platform — hybrid serverful/edge approach with self-hosted Inngest, Cloudflare Workers for public routes, and PlanetScale. Designed to cut $1K–$7K/month serverless costs to ~$400 total. Code handed off to Four13, not yet deployed.
Incremental Migration & Integration App
Self-hosted migration platform connecting any two data sources — Shopify, BigCommerce, Cin7 — with support for 90,000+ record migrations. Development stopped, project archived.
Matchmake Pro — Dating App Overhaul
Parachuted into an existing codebase, audited backend and frontend, resolved critical bugs, and integrated PayPal payments. Ongoing engagement resuming April 2026.
For Goodness Sake — Shopify Storefront
Custom Shopify theme designed and developed from scratch. Fully responsive, performance-optimized, no paid theme as a starting point.
career
Where I've worked
Full Stack Engineer — Vértere Global Solutions, Inc.
Apr 2026 – PresentMakati, Philippines · Hybrid
Full stack engineer working on platform integration using the MEAN stack (MongoDB, Express, Angular, Node.js).
Independent Builder — Tulay Tech
Mar 2026 – Present · Side projectRemote, Philippines
Independent product studio exploring business software ideas for Philippine SMEs. Experimenting with product concepts, technical architectures, and go-to-market approaches.
Full Stack Engineer — Matchmake Pro
Nov 2025 – PresentRemote, Contract
Audited and stabilized a Next.js + Supabase application. Refactored data access patterns, resolved critical bugs, and integrated PayPal payment workflows. Ongoing engagement.
Shopify Theme Developer — For Goodness Sake
Feb 2026 – Mar 2026Remote, Contract
Custom Shopify storefront from scratch using Liquid, Tailwind CSS, and DaisyUI. Performance-optimized, fully responsive.
Associate Developer II — Four13 Group
Jan 2025 – Apr 2026Remote
Designed and built backend integration solutions connecting Acumatica ERP with e-commerce platforms (Shopify, BigCommerce, Cin7) for US-based clients in healthcare, manufacturing, retail, and construction. Built advanced data-mapping systems, durable data pipelines, and ETL processes. Architected infrastructure improvements projected to reduce compute costs by 90%.
Backend Developer — Prosperna
Feb 2024 – Jan 2025Philippines
Started as a backend engineer on a multi-tenant e-commerce SaaS serving 1,000+ merchants, then grew into a dual role across both the product team and enterprise team. On the product side, I built core platform features — discount engines, dynamic templates, product review systems. On the enterprise side, I maintained and shipped custom-coded solutions for individual clients. Optimized SQL queries to cut response times by 40%, built admin dashboards with real-time data and VoIP integrations, and led onboarding that got new engineers shipping in their first week.
Freelance Web Developer
Mar 2021 – Aug 2023Remote
Delivered 20+ production websites and web applications for small businesses. Full lifecycle: requirements, architecture, development, deployment, and maintenance.
writing
Notes on building products, integration engineering, and figuring things out in public.
What agency integration work taught me about systems design
Two years of connecting ERPs to storefronts taught me more about software architecture than any textbook. Here's what I learned.
Inngest and durable workflows: a practical take
I've used Inngest across two production systems now. Here's what works, what's tricky, and why durable workflows changed how I think about backend architecture.
contact
Let's talk
I'm currently employed at Vértere Global Solutions and not actively looking for new roles. But I'm always happy to chat about integrations, infrastructure, product ideas, or anything you're building. Reach out if you want to talk shop.