Full Stack Developer × Product Design × Systems Builder

I turn operational complexity into clear, dependable software.

I'm Iommi Mandela Fuentes. I turn messy workflows into operational software, connected automations, and focused websites, from product architecture through deployment.

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Iommi Mandela Fuentes

00 / About

Product thinking, architecture, and execution in one practice.

I've been building since 2019, working across SaaS, internal tools, commerce, automation, and business websites. The common thread is practical software that makes complicated work easier to understand and operate.

Projects delivered
100+
Revenue generated for clients
₱50M+
Building since
2019

01 / Selected systems

Work built around real operations.

Flagship platform · Membership and commerce

Viewprint Academy

I architected and built this production platform end to end, connecting membership commerce, finance and staff operations, creator programs, workflow automation, and Discord-native community tooling.

Across the monorepo, I engineered products and plans, forms and onboarding, a durable workflow engine, event-driven Discord integrations, the creator bounty pipeline, unified ticketing, and the services that run the platform.

  • Visual automation with durable Inngest execution
  • Signed webhooks, REST APIs, and one Discord bot
  • Commerce, finance, staff operations, and bounties
Read the case studyVisit Viewprint Academy
Viewprint Academy public homepage
Viewprint visual automation editor showing an AI agent and Discord workflow nodes

Supporting system · Functional prototype

Property operations system

A role-scoped maintenance platform for agents, owners, tenants, and vendors. It covers property hierarchy, work-order dispatch, saved operational views, and mobile field workflows.

The prototype includes real-time work-order conversations, recurring maintenance jobs, notifications, vendor completion, and invoice review without presenting unfinished integrations as shipped work.

Additional work

Content Creator Lab

Client website

A conversion-focused site for a creator education brand, with offer pages, social proof, analytics, and conversion tracking.

Digital Freedom PH

Payment platform

Designed and engineered Xendit payments and subscriptions with an idempotent double-entry ledger, equity and referral splits, and reconciliation tools.

Frictionless

Product

Invoice tooling designed for independent freelancers.

FlowCord

Automation

A visual workflow builder for Discord communities.

ZhypForge

AI product

Content tooling for generating hooks, scripts, and ideas.

02 / Services

From the operating problem to the software people use.

  1. 01

    Workflow software

    Dashboards, staff tools, CRMs, portals, and workflows shaped around how the business actually runs.

  2. 02

    Product engineering

    Multi-role web products built from data model and permissions through polished, responsive interfaces.

  3. 03

    Connected operations

    Background jobs, webhooks, bots, APIs, and real-time features that connect work and reduce repetition.

  4. 04

    High-intent web experiences

    Fast, clear websites that explain the offer, guide the visitor, and connect cleanly to the next action.

  5. 05

    AI application development

    Useful AI features, assistants, and workflow tools built around real product data and business needs.

Working stack

Deep experience in my core stack, backed by a broad toolkit.

I use AI to research, design, and build faster, but I review and audit every implementation before it ships. My background in web security shapes how I use AI: I verify its output, question unsafe assumptions, and treat generated code with the same scrutiny as any other dependency.

Product engineering

  • Next.js
  • React
  • TypeScript
  • Node.js
  • Prisma
  • PostgreSQL
  • Redis
  • Tailwind CSS

Infrastructure and delivery

  • Docker
  • GitHub Actions
  • Vercel
  • Cloudflare
  • Nginx
  • AWS S3

Broader toolkit

Languages, frameworks, infrastructure, and tools I have used across shipped work and earlier projects.

Languages

  • JavaScript
  • HTML
  • CSS
  • Java
  • C# / .NET
  • C++

Frameworks and libraries

  • Express
  • Fastify
  • NestJS
  • Vercel AI SDK
  • shadcn/ui
  • Socket.IO

Data and storage

  • MySQL
  • MongoDB
  • Supabase
  • Elasticsearch
  • pgvector
  • SQLite

Infrastructure

  • Docker Compose
  • Inngest
  • Linux
  • Ubuntu / Debian
  • DigitalOcean
  • Hetzner

AI platforms and tooling

  • OpenAI
  • Claude
  • Gemini
  • Vercel AI Gateway
  • Ollama

Observability and monitoring

  • Sentry
  • Grafana
  • Prometheus

Payment systems

  • Stripe
  • Polar
  • PayPal
  • Xendit
  • Lemon Squeezy

Business operations and collaboration

  • GoHighLevel (GHL)
  • n8n
  • Cal.com
  • GitHub Projects
  • ClickUp
  • Slack

Development and creative tools

  • Git
  • GitHub
  • VS Code
  • Cursor
  • pnpm
  • Bun

03 / Process

Understand deeply. Build only what helps.

  1. 01

    Understand the workflow

    Map how the work happens today, including manual steps, edge cases, and the decisions that slow people down.

  2. 02

    Design the system

    Turn the real process into clear flows, permissions, interfaces, and a technical shape that can grow.

  3. 03

    Build and ship

    Deliver in reviewable stages, test the important journeys, deploy the system, and support the handoff.

Client feedback

“He is an excellent team member, always ensuring that tasks were completed on time and that our website is secure. He is a reliable, responsible and hardworking member of the team.”

Sina, Co-founder at SecurityBot

“A very responsible and knowledgeable developer, he did what I asked him to do in a short time and was there to help me integrate as well.”

Benjamin P., Client

“He listened to each of my requests and delivered them every time! Design is a long process, and he was there throughout its entirety to make sure I was satisfied with the webpage's look and functionality.”

Christopher G., Founder at Atomix Network

“He delivered a stunning website that perfectly represents our vision. His technical skills and responsiveness made the collaboration seamless.”

Alex L., Client

“He is a skilled and professional developer. He made an excellent app for me at a fair price, and was easy to work with.”

Rykoly, Client

“Working with him was a pleasure. His professionalism and attention to detail exceeded our expectations. We highly recommend his services.”

Mark S., Client
Project inquiryIommi / Systems builderHave a process that feels harder than it should?Let's simplify it.Tell me where the work gets stuck. I'll help design the right software or automation to move it forward.Start a conversation[email protected]