E-commerce
Payment integrations
Stripe and PagSeguro checkouts for small online stores, including webhooks and order reconciliation.
Stripe · PagSeguro · Node.js · PHP
Open to work · in Okazaki right now
I build the parts of a product that have to keep working:APIs, payments, auth, and the cloud underneath.
Four years across a global SaaS, a small software house and a year of freelancing. Mostly TypeScript, Next.js, Node and AWS. Brazilian, currently living in Japan.
§01Recent project
Freelance · Co-built, in production — 2026
Sunano.
A Brazilian community for gaming peripherals — reviews, tier lists, a forum, a store and paid memberships, all in one Next.js app.
Two developers, one codebase, real customers paying real money. I spent most of my time on the parts that can't fail quietly: payments, subscriptions, auth and data protection.
Visit sunano.com.brWhat I worked on
- 01Store and checkout with Stripe (cards) and Asaas (Pix / boleto), driven by webhooks
- 02Recurring VIP memberships: subscribe, cancel, expiry jobs and Discord role sync
- 03MFA, password-reset edge cases, admin roles and rate limiting
- 04Server-only data layer: the browser never talks to the database directly
- 05SEO, social cards and cost tuning on Vercel
Stack
Next.js 16 / React 19 / TypeScript / Supabase / Postgres / Stripe / Asaas / Vercel Cron / Zod
- API routes
- 250+
- DB migrations
- 250+
- scheduled jobs
- 7
- payment providers
- 2
§02Experience
Where I've worked
Freelance
Remote
Full-time freelancing since leaving Skedway.
Freelance Software Engineer
Sep 2025 – Present- Co-built Sunano (sunano.com.br) with one other developer: a gaming-peripherals community with a store, forum, rankings and paid memberships
- Owned the money path — checkout, Stripe and Asaas webhooks, recurring VIP subscriptions, pending-order expiry jobs
- Hardened auth and admin: MFA flows, role-based permissions, rate limiting, and a security + LGPD review
- Payment gateway integrations (Stripe, PagSeguro) for smaller e-commerce clients
Mid-level Software Engineer
Jun 2023 – Aug 2025- Built and maintained product features on AWS for a SaaS used by companies in several countries
- Designed and shipped serverless services and APIs meant to grow with customer load
- Migrated legacy modules to a modern stack while the product kept shipping
- Worked with infrastructure-as-code (Terraform) and containerised services (Docker)
Opctec
Londrina, PR, Brazil
Small regional software house — my first job.
Software Developer
Oct 2022 – Apr 2023- Built and maintained Laravel web applications end to end
- Helped move legacy systems onto current versions of the stack
Software Development Intern
Sep 2021 – Nov 2022- Shipped features in Laravel (web) and Flutter (mobile)
Smaller freelance jobs
Enterprise desktop
Lab desktop software
Several Windows desktop apps built from scratch and rolled out across a large clinical laboratory in my home city. I kept supporting them after launch.
Windows · Desktop · Deployment
Games
Roblox experiences
Small games on Roblox, scripted in Lua. Mostly for fun — and a good lesson in shipping to impatient users.
Roblox · Lua
Toolbox
- Every day
- TypeScriptReactNext.jsNode.jsPostgreSQLSupabaseREST APIs
- Cloud & infra
- AWSServerlessTerraformDockerVercelMicroservices
- Payments
- StripeAsaasPagSeguroWebhooksSubscriptions
- Also shipped with
- PHP / LaravelNestJSPythonFlutter / DartNoSQLLua
One of the smartest and most efficient developers I have had the pleasure to work with. Pedro has very deep technical knowledge and combines it with top notch problem solving skills and logical thinking. He can deliver clean and readable code and meet deadlines with ease, and he has great attention to detail.
§03Writing
Notes from the work
Education
- Jul 2026 – Present● now
Japanese language program — Okazaki, Japan
- 2022 – Dec 2025
B.Sc. Computer Science — UniFil — Centro Universitário Filadélfia
Capstone: AI churn-prediction microservice for an agribusiness cooperative's CRM.
- 2019 – 2021
Computer Technician (technical high school) — Senac Brasil
§04Contact
Hiring? Let's talk.
Email is the fastest way to reach me. I usually reply within a day — I'm on Japan time, so evenings in the Americas work well.