Douglas FernandesBuild 2026.4
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Douglas Fernandes
Full-stack / QA
01Index
Encanto, BR
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I am a full-stack developer and a QA analyst on the same product — an international healthtech SaaS running under GDPR and HIPAA. Scroll down through the stack I work in.

Interface
API
Data
Infra
Tests
Depth0000Verified 0/5
Please scroll down

Full stack — I am a full-stack developer and a QA analyst on the same product — an international healthtech SaaS running under GDPR and HIPAA. Scroll down through the stack I work in.

  • Layer 01 — Interface: Next.js, React, TypeScript, CSS
  • Layer 02 — API: Django, DRF, Python, REST
  • Layer 03 — Data: PostgreSQL, MySQL, SQL, Migrations
  • Layer 04 — Infra: Docker, VPS, Cloudflare R2, AWS / GCP
  • Layer 05 — Tests: Playwright, Pytest, E2E, MRL
02ProfileTwo roles, one product

Most teams split building from proving. I hold both ends, which is why the things I ship tend to stay shipped.

Role
Full-Stack Developer & QA Analyst — NADIC / IFRN
Domain
International healthtech SaaS · GDPR + HIPAA
Study
Systems Analysis & Development (Technologist) — IFRN
English
B2 — EF SET · open to remote roles
Base
Rio Grande do Norte, Brazil · UTC−3
Recent work04 — shipped

Patient-facing platform for an international healthtech startup, running under GDPR and HIPAA. I ship the features and I write the tests that keep a regulated product releasable every sprint — inside restricted repository access and recurring security audits.

Next.jsDjango RESTPostgreSQLDockerMulti-tenant

Recent work

Healthtech SaaS — 2025 →

Patient-facing platform for an international healthtech startup, running under GDPR and HIPAA. I ship the features and I write the tests that keep a regulated product releasable every sprint — inside restricted repository access and recurring security audits.

Next.js, Django REST, PostgreSQL, Docker, Multi-tenant

Summerpass — 2026

Event management and ticket sales, with five levels of access — admin, producer, customer, check-in agent, usher. Venue floor-plan upload drives sectioned tickets; check-in runs on QR. Financial dashboards per producer, Asaas and Mercado Pago on the payment side.

Next.js, Django REST, Asaas, Mercado Pago, Google Maps

StudioRAW — 2026

Multi-tenant SaaS for photography studios. One panel for clients, syncable calendars (Google and Apple) and galleries on Cloudflare R2 — plus the automation around it: email notifications, digitally signed contracts through Autentique, PIX charges through Asaas.

Next.js, Django REST, PostgreSQL, Cloudflare R2, Docker

TicketFace — 2026

TODO — description pending.

TODO

[ 2023 — now, what I do ]

Practice

  • Build
  • Test
  • Ship
  • Interface
  • API
  • Data
  • Infra
  • Review
  • Automate
  • Deploy
  • Debug
  • Document
  • Refactor
  • Verify
05ContactReply within one business day

Say hi

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© 2026 Douglas Fernandes Encanto, Rio Grande do Norte — Brazil
5 layers · 0 failing Built by hand