DB
Available for new projects

Davi Bezerra

// Full-Stack Developer & Consultant

I design and build systems that hold up in production — from the data model to the interface people use every day.

architecture · reference
cachequeryasyncclientweb · mobileapidjango · nestcacheredisdatabasepostgres · mysqlqueuescelery · workers
p95 latency · 120mscontinuous deploy
PythonDjangoTypeScriptReactNext.jsNestJSPostgreSQLMySQLRedisDockerAWSLinuxNginxCeleryPrismaTailwindPythonDjangoTypeScriptReactNext.jsNestJSPostgreSQLMySQLRedisDockerAWSLinuxNginxCeleryPrismaTailwind
~/about

Engineering before frameworks

I have been building software for over 8 years, working end to end: data modelling, APIs, integrations, front end and infrastructure. I have shipped with startups, agencies and non-profits across healthcare, education, events, logistics and content.

Beyond writing code, I help teams make better technical decisions — choosing architecture, reducing infrastructure cost, organising deployment and breaking out of the technical debt cycle.

years shipping software
0+years shipping software
projects delivered
0+projects delivered
technologies in production
0+technologies in production
consulting tracks
0consulting tracks
~/services

Consulting and development on demand

Three tracks that often go together: building the product, getting IT operations in order and designing the architecture for what comes next.

~/services/development

Software development

I build web products end to end: from the data model to the interface, including APIs, authentication, integrations and deployment.

  • Custom web applications (Django, Next.js, NestJS)
  • REST APIs and third-party integrations
  • Authentication, permissions and admin panels
  • Deployment, CI/CD and production monitoring
~/services/it-consulting

IT consulting

I review your current technical setup and propose a workable path: what to keep, what to refactor and what to drop — with clear priorities and cost.

  • Technical assessment and prioritised action plan
  • Architecture, code and infrastructure review
  • Database and performance optimisation
  • Cloud and server cost reduction
~/services/system-design

System Design

I design the architecture of systems that need to grow: service boundaries, queues, caching, consistency and a scalability strategy.

  • System architecture and reference diagrams
  • Scalability, caching and messaging strategy
  • Data modelling, partitioning and migrations
  • Observability, resilience and cost planning

~/services/how-it-works

  1. 01

    Intro call

    A 30-minute call to understand the context, the problem and the timeline. No cost, no commitment.

  2. 02

    Assessment

    I dig into the code, the infrastructure and the data to find the real bottlenecks before proposing anything.

  3. 03

    Written proposal

    Scope, deliverables, timeline and price agreed in writing. You decide with clarity, not a vague estimate.

  4. 04

    Build and handover

    Short cycles with close communication, a repository you can follow and incremental delivery.

Need help with a specific project?

Walk me through the situation on a 30-minute call. If I am not the right person for the problem, I will say so straight away.

~/skills

The stack I put into production

Not a wish list: these are the tools that have already carried running systems, with real users and real traffic.

Languages

~/languages

Python95
TypeScript / JavaScript90
C#80
PHP75
C++70

Frameworks & libraries

~/frameworks

Django / DRF95
React92
Next.js88
NestJS80
Laravel75
Tailwind CSS92

Tools & infrastructure

~/infra

PostgreSQL / MySQL90
Redis85
Docker88
Linux / Nginx90
CI/CD & Git90
AWS78
~/projects

Systems that are live today

A selection of some products I designed, built and maintained — from a mobile app with WebSockets to an institutional site with a CMS.

9 projects
Mobile app + platform

GOFit

The first fuel delivery app in Latin America. I was involved in the entire development process, from the initial concept and first MVP through the full production launch, ongoing maintenance, and continuous product evolution.

  • Python
  • Django
  • JavaScript
  • Socket.IO
  • Redis
  • MySQL
  • Docker
  • AWS
what’s inside
  • Payment gateway integration and subscriptions
  • Live workout location over WebSocket
  • High-availability deployment on AWS

Anende - Agência Nacional de Ensaios Não Destrutivos

Institutional showcase website for ANENDE RJ, focused on simplicity, speed, easy deployment, and showcasing images and services.

  • Modern and custom design
  • Fast response times and cost-effective deployment
  • Visitor monitoring and reporting
  • Vite
  • React
  • Cloudflare
  • Tailwind
  • Analytics
Event management

CDPP Events

Full event system with invitations, guest lists, QR code check-in and live attendance tracking.

  • Role-based access control
  • Queues and scheduled tasks with Celery
  • Live attendance statistics
  • Django
  • Celery
  • Python
  • MySQL
  • Docker
  • DRF
Event logistics

Leva Aí

Guest list management for events, with transport planning and boarding control per departure point.

  • Social login with Google and GitHub
  • Guests grouped by route and time slot
  • Attendance and boarding control
  • Next.js
  • Prisma
  • Better Auth
  • Zod
Developer tool

Multi Edit

Web editor for processing and modifying large volumes of text in bulk, built for people working with content and data.

  • Bulk editing across multiple entries
  • Block editor powered by BlockNote
  • Social login with Google and GitHub
  • Next.js
  • Zod
  • BlockNote
  • Auth.js
  • Prisma
Institutional website

CDPP

Website for a non-profit: news, projects, events and organisational information in a CMS the team maintains on its own.

  • Headless backend with Strapi
  • Next.js front end focused on SEO
  • Content published by the team itself
  • Next.js
  • TypeScript
  • Strapi
  • MySQL
  • Docker

Link Menor

Fast, lightweight URL shortener with link management and access tracking.

  • Create and manage short links
  • Per-link access metrics
  • Lightweight API validated with Zod
  • Next.js
  • Vercel
  • Prisma
  • bcrypt
  • Auth.js
  • Zod

WordPress Post Exporter

Command-line tool that exports WordPress posts into structured formats, making content migration and processing easier.

  • Bulk export of posts
  • Structured output for migration
  • Open-source project on GitHub
  • Python
Event platform

TecSports

Sports event management system with athlete registration, payment processing and admin tooling for organisers.

  • REST API consumed by web and mobile clients
  • Registration and payments with batch control
  • Admin panel for organisers
  • Django
  • Django REST Framework
  • Python
  • React
  • MySQL
  • Redis
  • Docker
~/contact

Let’s get the project moving

If you need to build a product, unblock a team or design the architecture for something that will grow, tell me what is stuck today.

Rio de Janeiro, Brazil · GMT-3 · available for new projects

what happens next
  1. 1

    You write to me

    Describe the situation in a few lines. I reply within 24 hours on business days, directly to you.

  2. 2

    Discovery call

    30 minutes to understand the context, the constraints, the timeline and what already exists.

  3. 3

    Written proposal

    Scope, deliverables, timeline and price agreed in writing. You decide with clarity.

Prefer LinkedIn? Reach out there