Haroldo Gondim

São Paulo, Brazil · Remote

• Led the technical delivery of features for the global hp.io platform, combining React, TypeScript, and Vite with PHP 8.2 and Drupal 10 integrations.
• Automated Apache access.log collection and analysis with Node.js, reducing manual work by approximately 80%. The solution retrieved files from Acquia, narrowed date ranges, and filtered requests by IP and endpoint.
• Designed an entity-level audit module to track data changes and support the investigation of suspicious behavior in the application.
• Contributed to the architecture and maintenance of REST APIs integrated through Apigee and internal microservices, with a focus on security and code quality.

São Paulo, Brazil · Remote

• Developed high-performance APIs and internal monitoring tools with Node.js, Express.js, PostgreSQL, and MySQL.
• Built asynchronous logging and integration tools to improve observability and communication between microservices.
• Modernized and refactored large distributed and legacy systems, decomposing them into more modular and maintainable components.
• Hardened partner-facing APIs and standardized environments and deployments with Docker and GitHub Actions.

Rio de Janeiro, Brazil · Remote

• Engineered and maintained modern banking microservices using Node.js and AWS Serverless architecture.
• Designed and deployed event-driven cloud workflows using AWS Lambda, API Gateway, SQS, SNS, RDS, and S3.
• Contributed to the reliability and availability of distributed services running across multiple AWS components.

Porto Alegre, Brazil · Remote

• Contributed to e-commerce features across React and Node.js, using Material UI, Styled Components, and GraphQL.
• Component architecture improvements and UI bug fixes to ensure high-quality, consistent interfaces.
• Multicultural collaboration in distributed agile teams, communicating daily in English.

São Paulo, Brazil · Remote

• Legacy systems maintenance and enhancement using pure PHP and MySQL within a microservices architecture.
• REST APIs development and front-end improvements with jQuery and Bootstrap across telecom products (IVRs, chatbots, omnichannel).
• Multi-level support — resolved critical L1–L3 tickets while keeping production systems reliable.

Rio de Janeiro, Brazil · Remote

• Founded and led a FiveM/GTA V project that reached more than 3,000 weekly active players and over 10,000 unique players.
• Built high-performance Lua scripts, Node.js microservices, REST APIs, and MySQL-backed game systems.
• Created in-game interfaces with HTML, CSS, JavaScript, and Bootstrap.
• Led the technical direction of the project, including architecture decisions, service availability, product development, and team coordination.

Rio Grande do Sul, Brazil · Remote

• Payments and internationalization — integrated Stripe and exchange-rate APIs and built multilingual support (PT, EN, ES).
• New systems and features developed for the hosting platform using PHP, JavaScript, jQuery, and Bootstrap.
• UX and layout improvements across the main website and the sales panel.

Recife, PE, Brazil · On-site

• Developed websites and systems for client projects using PHP, JavaScript, jQuery, HTML, CSS, and MySQL.
• Integrated Google Maps API and other external services into customer projects.
• Contributed to security and feature delivery for Zaite Pronto, the company's main product.

Worldwide · Remote · Self-employed

• Custom web systems development, e-commerce applications, and digital platforms engineered using PHP, JavaScript, TypeScript, and Node.js.
• Relational database modeling and cloud infrastructure layout (MySQL, PostgreSQL) focused on consistency, data safety, and query optimization.
• API integrations and third-party services implementation, leveraging modern microservices concepts and cloud elements (AWS).
• Technical consulting delivered directly to a diverse corporate client base. Portfolio and live code available in the projects section below.