Helder Cavalcante Filho

Fullstack Developer

Location
Brazil
Desired Salary
Unspecified
Work preference
Remote Only / Full Time
Status
Open to offers
Field / Industry
Programming
Job Level: Senior
Relocation: No
Notice Period: Immediate
Category: Programming

This user has not passed any tests yet

English - Upper-Intermediate Portuguese - Native or Bilingual

About Me

Full Stack Developer and Tech Lead with 4+ years of experience developing, maintaining, and improving web applications. Experienced in feature development, system integrations, bug fixing, and delivering reliable software solutions. Skilled in integrating external systems, improving platform reliability, and supporting business-critical operations. Familiar with Clean Code and SOLID principles. Currently working as Tech Lead, providing technical guidance, performing code reviews, estimating development efforts, managing deployments, and supporting the team's technical growth while maintaining hands-on development responsibilities.

Skills

JavaScriptSaaSDockerLinuxGitHTMLCSSMySQLPHPCode ReviewREST APIsOracleAutomated TestingVue.JsPayment ProcessingjQueryClean CodeSOLIDZend Framework

Experience

Full Stack Developer → Tech Lead @ MAXNÍVEL | Direct Sales Platform Brazil
Jun 2023 - Present

Develop and maintain a multi-tenant SaaS platform focused on e-commerce, subscriptions, direct sales, ERP integrations, and payment processing. Implemented Bling ERP v3 integration, redesigned a legacy XML-based integration into REST/JSON, built retry and reprocessing mechanisms for failed payments, redesigned subscription expiration rules, investigated ERP rate-limiting issues, and resolved a critical billing incident. Promoted to Tech Lead in 2025 with responsibility for technical guidance, code reviews, effort estimation, deployment management, and team growth support.

Full Stack Developer (Intern → Full Time) @ ONISAÚDE
Jul 2022 - Jun 2023

Contributed to development and maintenance of a healthcare management platform for online consultations, appointment scheduling, patient management, and reporting. Implemented new features, resolved bugs, performed maintenance activities, and collaborated on database operations and web application development using PHP, Zend Framework, Vue.js, and Oracle.

Education

Universidade Estácio de Sá
Aug 2026

Bachelor's Degree, Information Systems

Portfolio not available.

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