Available for new projects

Hello, I'm Leonardo

Backend developer focused on Django REST and PostgreSQL. I also build Vue.js and Next.js frontends when the project calls for it.

Professional portrait of Leonardo Costa, a man with dark skin, short hair, and a thin beard with a mustache. He wears dark-rimmed glasses and a black t-shirt, posing with a serious expression against a neutral gray background and soft studio lighting. Paulo Padilha
Professional portrait of Leonardo Costa

About Me

I've been a developer for over 3 years, focused on Django REST and PostgreSQL. Most of my time goes to the backend — APIs, integrations, async queues — and I also have hands-on experience with Vue.js on the frontend.

Latest from the Blog

Notes, solutions, and what I'm learning along the way.

Technologies & Skills

What I use day to day to ship APIs, integrations and frontends.

Django REST Framework

Django

Docker

Next.js

Python

Nuxt.js

Featured Projects

A sample of things I've built, from the CRM in production to the site you're browsing right now.

ZooUnama

ZooUnama

Promotional site for the UNAMA zoo. Beyond showcasing the animals, it raises awareness about rescues from abuse and helps gather donations to keep the work going.

DjangoBootstrap
Customer Resolve

Customer Resolve

Customer app for Resolve Energia Solar clients to track their solar installation — stages, documents and deadlines.

Django REST Framework
FBG-PA

FBG-PA

Institutional website for the Pará chapter of the Brazilian Federation of Gastroenterology.

DjangoBootstrap

Professional Experience

Where I've worked and what I delivered along the way.

  1. Present (6 months)
    current

    Portí Digital

    Belém - PA

    Software Developer

    Present · 6 months

    Fullstack developer on a receivables anticipation system for healthcare professionals, integrating with payment platforms and internal tools. Activities: - APIs with Django REST and frontends with N...

  2. (8 months)

    FebraCIS

    Belém

    Software Developer

    · 8 months

    Senior backend developer on an AI-powered CRM for managing leads, sales, courses and WhatsApp communication. The system ran in real time, classified leads automatically and served several of the group...

  3. (4 months)

    Resolve Energia Solar

    Belém - PA

    Software Developer

    · 4 months

    Development and maintenance of Resolve's internal systems — automation, ERP and mobile apps — in a fast-paced environment. Responsibilities: - Backend work and system maintenance - Features focused...

Education

Undergrad, postgrad, and what I'm studying right now.

current

Specialization in Cloud Computing Projects

Descomplica Faculdade Digital

Present

1 month

Specialization in Cloud Computing projects: distributed systems architecture, infrastructure as code, managed services, scalability, cost and observab...

Postgraduate Degree in Software Engineering

Descomplica Faculdade Digital

1 year and 1 month

Postgrad focused on applied software engineering: architecture, design patterns, automated testing, agile methods (Scrum/Kanban), DevOps, requirements...

MBA in Information Security

Descomplica Faculdade Digital

11 months

MBA focused on protecting data, systems and infrastructure: risk management, vulnerability analysis, security policies, compliance (LGPD, ISO 27001),...

Testimonials

What former colleagues and clients have said. You can also check those on my LinkedIn profile.

I had the opportunity to work with Leonardo at Resolve Energia Solar during a period of accelerated company growth. With many challenges, processes to be defined, and multiple projects underway, it was essential to have proactive and committed people. Leo consistently proved himself to be a highly collaborative professional, actively participating in problem-solving and encouraging continuous improvement. His approach is user-centered, always seeking the best possible experience, while demonstrating excellent teamwork. In summary, Leonardo is a consistent, creative, and strategic professional. His communication is assertive and clear, directly contributing to the delivery of high-quality products and the growth of both the team and the company.

Foto de Max Oliveira

Max Oliveira

Tech Lead Resolve Energia Solar

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Let's Talk?

If you want to talk about a project, a role, or just trade notes on Django, send a message.

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