Portfolio

Built systems, shown as craft.

Architecture, product engineering, and operational delivery — from event platforms to community products designed to stay clear in production.

Work

Work

Selected production systems

Live products with notes on scope, architecture, and what had to hold up in daily use.

The Potter's Awards homepage — gala and Masters Cup platform

01Events platform

The Potter's Awards

Gala and Masters Cup, one operating system.

Booking, sales, finance, email, and admin controls for a prestige dance awards program — built regional-first with a clear path to global rollout.

  • Dual booking: invitation-gated gala redemption and public Masters Cup seats
  • Sales dashboard covering order tracking and payment lifecycle
  • Transactional email for confirmations, invitations, and payment follow-ups
Next.jsTypeScriptCloudflare PagesCloudflare Workers
Live site
Tokugawa Syndicate member directory with live presence

02Community product

Tokugawa Syndicate

Discord identity with live presence in the product.

A member directory and profile experience for a Discord community — OAuth onboarding, presence indicators, and member-owned profile surfaces.

  • OAuth-driven onboarding for community members
  • Live presence state surfaced in the directory
  • Profile overlays with member-owned customization and media
React 19Cloudflare WorkersDiscord OAuth
Live site

Craft

Practice behind the builds

Architecture, UI/UX/CX, product engineering, data & operations, and infrastructure — the disciplines in every shipping system.

01

Architecture

Boundaries, domain models, and integration shape decided before the stack — so the system stays explainable as it grows.

Domain modelingService boundariesData-flow reviewRisk mapping
02

UI / UX / CX

Interfaces and journeys shaped around real tasks — clarity, accessibility, and customer experience treated as system requirements, not decoration.

Interface designInteraction flowsAccessibilityCustomer experience
03

Product engineering

Full-stack delivery for tools that need reliable APIs, maintainable code, and experiences that hold up under use.

TypeScriptNext.js / ReactNestJSAPI design
04

Data & operations

Operational systems with roles, audit trails, and recovery paths — built for people who run the process, not just demos.

PostgreSQLRBACAudit logsOffline sync
05

Infrastructure

Production delivery with deployment, observability, and handoff that matches how the system will actually be run.

AWS ECSCloudflare WorkersDockerObservability
Portrait of Alf Vincent Gesulga

About

Alf Vincent Gesulga

Senior software engineer focused on greenfield systems, architecture, and product engineering. The work sits between strategy and implementation: modeling workflows, choosing boundaries, and shipping software teams can operate day to day.

Recent work spans event platforms, community products, and operational tooling — with an emphasis on clear systems over disposable demos.

Contact

Start a project conversation

For product builds, architecture reviews, or systems that need to become reliable software — share the problem, users, and constraints. Replies go through email.

avpgesulga@gmail.com