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I'm Matheus Carvalho de Oliveira, a full-stack developer based in Braga, Portugal, with solid experience building back-end services in Python and Django, integrating with relational databases and REST APIs. I enjoy designing scalable architectures, improving performance, and delivering reliable software with a strong focus on quality and collaboration. I thrive in cross-functional teams, use agile methodologies, and care about observability and maintainable code.…I'm Matheus Carvalho de Oliveira, a full-stack developer based in Braga, Portugal, with solid experience building back-end services in Python and Django, integrating with relational databases and REST APIs. I enjoy designing scalable architectures, improving performance, and delivering reliable software with a strong focus on quality and collaboration. I thrive in cross-functional teams, use agile methodologies, and care about observability and maintainable code.

Matheus Carvalho de Oliveira

Full Stack Developer, Web Developer, Back-End Developer, +2

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I'm Matheus Carvalho de Oliveira, a full-stack developer based in Braga, Portugal, with solid experience building back-end services in Python and Django, integrating with relational databases and REST APIs. I enjoy designing scalable architectures, improving performance, and delivering reliable software with a strong focus on quality and collaboration. I thrive in cross-functional teams, use agile methodologies, and care about observability and maintainable code.…I'm Matheus Carvalho de Oliveira, a full-stack developer based in Braga, Portugal, with solid experience building back-end services in Python and Django, integrating with relational databases and REST APIs. I enjoy designing scalable architectures, improving performance, and delivering reliable software with a strong focus on quality and collaboration. I thrive in cross-functional teams, use agile methodologies, and care about observability and maintainable code.

Available to hire

I’m Matheus Carvalho de Oliveira, a full-stack developer based in Braga, Portugal, with solid experience building back-end services in Python and Django, integrating with relational databases and REST APIs. I enjoy designing scalable architectures, improving performance, and delivering reliable software with a strong focus on quality and collaboration.

I thrive in cross-functional teams, use agile methodologies, and care about observability and maintainable code.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Portuguese

Fluent

English

Fluent

Work Experience

Full Stack Developer at Mobiweb

August 1, 2025 - Present

Diagnosed and resolved critical data inconsistencies blocking production deployment of an automotive sales analytics platform by correcting FTP ingestion mappings and reconciling database state. Redesigned a performance-critical API for a hotel/experiences booking platform, cutting response time from 30+ seconds to under 3 seconds through architecture improvements, repository-based queries, and proper serialization. Implemented revenue-sharing with Stripe Connected Accounts for automated commissions and created thorough technical documentation. Added OpenTelemetry-based backend observability with Grafana dashboards. Built frontend features for web (React.js) and mobile (React Native), including improved authentication with automatic session expiry handling. Managed multi-platform CI/CD pipelines (GitLab, GitHub, Bitbucket) with deployments to Heroku and AWS using GitHub Actions.

Consultant / Python Developer at Ernst & Young

January 1, 2021 - November 1, 2024

Performed quality control tests for SAP database migrations and supported data integration tasks. Worked in an agile team participating in planning, stand-ups, and retrospectives. Developed and optimized SQL queries for Oracle and PostgreSQL. Implemented backend integrations using Python/Django with a focus on reliability and maintainability. Maintained CI/CD pipelines using GitLab and Jenkins across dev, test, staging, and production. Wrote unit tests in Python and created technical documentation to share knowledge across the team.

Systems Development Analyst at Labware

May 1, 2019 - August 1, 2019

Analyzed client requirements and customized LIMS software to meet specific needs. Configured LIMS using native interface and proprietary LIMS Basic language. Developed and optimized advanced SQL queries in Oracle for data extraction and analysis. Collaborated with clients' technical and business teams to propose and implement tailored improvements to the LIMS system.