Willy Candra
AI systems engineer

I connect the tools a company already pays for, and build the ones it's missing.

Internal apps and AI integrations for teams that have outgrown spreadsheets and copy-paste. I lead the build end to end, from the first process map to support after launch.

Based in Bali. Working with teams in the US and Asia-Pacific.

Free 30-minute consultation

Walk me through one workflow. I'll tell you what I'd build, or tell you if you don't need me.

Your tools
AI integrationAgents that read, sort and draft, inside your tools.
Custom appThe internal tool your team is missing.

Your business

Less copy-paste between tools, one source of truth, and reports ready when you need them.

Estimate what you'd save
Simplified. Tap a tool to trace it.

AI estimate

What is manual work costing your team?

Tell me about the repetitive work. You'll see what it costs today, and what published research says automation could give back.

1. Your team

Salary plus taxes and benefits, in the currency above. I turn it into an hourly cost.

2. The repetitive work

Add roughly how many hours a week your whole team spends on each. Leave the rest empty.

h a week
h a week
h a week
h a week
h a week

No names or client details needed.0/300

No sign-up needed. Your answers are saved anonymously to improve the estimator.

Today
0hours a year
Add the hours a week for at least one task.
Add what one person costs to see this in money.

Already know what you need? Contact me

Portfolio

Systems I've built and shipped.

Internal systems for clients, and products of my own.

Screenshot of KostEZ Indonesia
Personal, web application

KostEZ Indonesia

KostEZ Indonesia is an innovative SaaS platform co-founded to revolutionize rental property management for owners of "Kost" properties in Indonesia.

Next.js, Node.js, PostgreSQL, React, Supabase, Vercel

See the project
Personal, website

Utillio

Utillio is a powerful, client-side suite of utility tools designed for rapid, privacy-friendly processing of images, PDFs, and various media directly in the…

Next.js, Tailwind CSS, Vercel

Client, web application

PT BRO Bali Tour and Travel

Developed an automated accounting system for PT BRO Bali Tour and Travel, transforming their manual, error-prone Excel processes into a standardized, secure…

Next.js, Node.js, PostgreSQL, Supabase, Tailwind CSS, Vercel

Personal, web application

Flowstate AI

Flowstate AI is an innovative platform empowering solo founders and entrepreneurs with a sophisticated AI thinking partner.

MongoDB, Node.js, React, Tailwind CSS, Vercel

Most of my integration and AI work is for clients under NDA, so it isn't shown here. Those case studies are being written up without names.

See all 17 projects

How I work

From the first call to three months after launch.

One person leads the whole build, so nothing gets lost between a salesperson, a designer and a developer.

  1. Free consultation

    We talk through one workflow for 30 minutes. I tell you what I'd build, or tell you if you don't need me.

    You get: a straight answer, free.
  2. Understand first

    I map how your team works today, the tools, the handoffs and the spreadsheets, before proposing anything.

    You get: a written scope and a fixed-price quote.
  3. Design for clarity

    Screens your team can use without extra training. You review them before the build starts.

    You get: screens to try and comment on.
  4. Build to last

    A modern, maintainable stack: Next.js, React, Node.js, Supabase and PostgreSQL, deployed on Vercel. A working first version early, then refined with your team.

    You get: a first version to use with real data.
  5. Deliver with care

    Tested properly, launched, and handed over with the knowledge your team needs to run it.

    You get: three months of support after delivery.

Blog

What I'd do if it were my business.

Short reads for owners on which AI is worth paying for, and which isn't.

Willy working on a laptop at a garden cafe in Bali

About me

I ran businesses before I built their systems.

Retail, food and beverage, services. That's where I learned what a broken process costs, and what a team will actually use. Now I lead the whole build: architecture, frontend, backend, databases, integrations and deployment.

AI systems engineerAgents and workflows wired into the tools you already run.
Forward-deployed engineerI work inside your team, on your real problems.
Solutions architectI design how your systems fit together before anything is built.
Technical leadI own the build from the first call to support after launch.

Tell me how the work flows today.

I'll tell you what I'd build, and what I'd leave alone. The first 30 minutes are free.

Calls during US Eastern mornings or Asia-Pacific business hours.