Senior Software Engineer

Haroldo Gondim

10+ years turning complex problems into reliable web systems — from legacy modernization to cloud microservices, across the PHP and TypeScript ecosystems.

Recife, PE — Brazil · Remote worldwide

Get in Touch Resume

01 — About

I wrote my first line of code when I was 13 — and never stopped.

My name is Haroldo, a self-taught Software Engineer from Brazil. I turned building fan sites for an online game into a 10-year career in full-stack development, shipping web systems for companies like HP, banks, insurance and security firms — plus dozens of freelance products along the way.

Today I work as a Senior Software Developer at HP (through Wipro) on hp.io, a global developer portal: new front-end features in React and TypeScript, enterprise REST APIs, and security hardening on PHP 8.2 and Drupal 10.

My core ecosystem is PHP (Laravel, Drupal) and JavaScript/TypeScript (Node.js, React, Next.js), backed by MySQL, PostgreSQL, Docker, and AWS. I hold engineering standards high — Clean Code, SOLID, OOP — and I'm a Golang enthusiast looking for an excuse to ship it to production.

02 — Work Experience

Senior Software Engineer @ HP (by Wipro)

Jul 2024 — Present

São Paulo, Brazil · Remote

Core backend development and feature implementation for the global hp.io platform leveraging PHP 8.2 and Drupal 10, seamlessly integrated with modern React and TypeScript front-ends.
Architected and implemented a custom entity-level audit trail module to track data mutations in real-time, successfully mitigating critical vulnerabilities and securing the application against malicious internal exploits.
Built automated Node.js tools for production Apache log ingestion and forensic analysis, drastically reducing incident response times for identifying suspicious IPs and security breaches.
Enterprise REST APIs architecture and maintenance using modern PHP design patterns, integrated with Apigee gateways and internal distributed microservices.

PHP 8.2Drupal 10Node.jsReactTypeScriptViteREST APIsApigeeScrum

Senior Software Engineer @ AltSec

Aug 2022 — Jul 2024

São Paulo, Brazil · Remote

High-performance APIs and critical internal monitoring tools developed using Node.js, Express.js, and PostgreSQL.
Structural modernization and refactoring of large-scale distributed systems backed by MySQL and PostgreSQL databases.
Security hardening and advanced API design patterns enforced across backend systems to prevent third-party integration vulnerabilities.
Docker containerization to ensure consistent environments and smooth automated deployments via GitHub Actions.

PHP 7/8LaravelNode.jsExpress.jsTypeScriptMySQLPostgreSQLDockerREST APIsGitHub Actions

Back-end Developer @ .add (BrasilCap)

Mar 2022 — Jul 2022

Rio de Janeiro, Brazil · Remote

Engineered and maintained modern banking microservices using Node.js, TypeScript, and AWS Serverless architecture.
Designed and deployed event-driven cloud workflows using AWS Lambda, API Gateway, SQS, SNS, RDS, and S3.
Ensured high availability and strict service resilience across distributed production environments.

Node.jsMySQLAWS LambdaAPI GatewaySQSSNSSwaggerScrum

Front-end Developer @ Object Edge

Nov 2021 — Feb 2022

Porto Alegre, Brazil · Remote

E-commerce interfaces built for an international platform using React.js, 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.

React.jsNode.jsGraphQLMaterial UIStyled ComponentsAWSScrum

Full Stack Developer @ Callflex

Apr 2021 — Oct 2021

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.

PHPJavaScriptjQueryBootstrapMySQLMicroservices

Software Engineer · Project Leader @ KSRP

Dec 2019 — Nov 2020

Rio de Janeiro, Brazil · Remote

Founded and led KSRP, the top GTA V roleplay server in Brazil (FiveM), with 1,000+ weekly active players and a staff team of 10+.
High-performance scripts, microservices, and REST APIs built with Lua, Node.js, Express.js, and MySQL.
In-game UIs created with HTML, CSS, JavaScript, and Bootstrap, with 24/7 service availability.

LuaNode.jsExpress.jsDiscord.jsMySQLBootstrap

Full Stack Developer @ VirtusHost

Aug 2018 — Dec 2019

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.

PHPJavaScriptjQueryBootstrapMySQLStripe API

Full Stack Developer @ Freelance / Independent Projects

2011 — Present

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.