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Rodolfo Charles

@rodolfocharles

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I build and lead scalable web platforms, SaaS products, APIs, and digital integrations.

Brazil

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What I'm looking for

I'm looking to lead and build scalable web systems, SaaS products, APIs, integrations, automation, and AI-enabled solutions, while strengthening technical standards, delivery processes, and team development.

I've built and led web platforms, SaaS products, APIs, and digital integrations for Oi Soluções B2B, OTG Open Technologies, Provider IT, and Anka Tech.

At Oi, I led B2B initiatives for the Grandes Empresas portal, migrated landing pages to Node.js and Next.js, and evolved React.js and Lumis XP applications with automations and integrations. I also helped deliver the Oi FAQ with Node.js, React, and Redux, and provided technical leadership for OiPlay.

At OTG, I led a squad responsible for multiple corporate web systems, introducing agile processes, technical standards, a shared library, and an internal CMS. My work spans Node.js, NestJS, TypeScript, React, Next.js, Java, Spring Boot, PHP, REST APIs, PostgreSQL, MySQL, AWS, and Azure DevOps.

I've also created Coach-IA, a production micro-SaaS that helps personal trainers generate AI-powered training plans with subscriptions, payments, authentication, and PDFs. I enjoy turning business rules into reliable digital products, from CRM and payment integrations to custom systems, institutional sites, landing pages, and automation.

Experience

Work history, roles, and key accomplishments

Software Engineer

Anka Tech

Jan 2026 - Mar 2026 (2 months)

Worked as a web developer analyst on projects and systems for the financial market and CRM. Developed full stack with focus on backend, frontend, and integrations with bank and BackOffice APIs.

NodeJS NestJS React Next.js APIs Back Office

Tech Lead Software Engineer

OTG Open Technologies – CNC

May 2024 - Oct 2025 (1 year 5 months)

Led a squad responsible for multiple corporate web systems. Implemented agile processes, technical standardization, shared library, and internal CMS development. Developed scalable applications with Node.js, React.js, and NestJS, and provided mentoring and code review.

NodeJS React NestJS Agile Code Review Mentorship CMS

IT Consultant / Tech Lead

Provider IT

Jan 2025 - Mar 2025 (2 months)

Provided technical leadership on a temporary project involving commercial simulators and CRM integrations. Documented technical and business processes, flows, APIs, rules, CSV/database, and HubSpot CRM integrations.

HubSpot APIs Documentation CSV Databases

Tech Lead / Full Stack Developer

Nov 2021 - Feb 2024 (2 years 3 months)

Led technical projects in B2B, focusing on the Grandes Empresas portal and migration of a landing page to Node.js/Next.js. Maintained and evolved React.js applications and Lumis XP CMS, automations, integrations, and digital channel modernization.

NodeJS Next.js React Lumis XP CMS B2B Automation

Digital Relationship Analyst

Jan 2018 - Nov 2021 (3 years 10 months)

Worked on digital solutions, e-commerce, and relationship channels. Implemented the Oi FAQ with Node.js and React + Redux, and worked on projects with Oracle Commerce Cloud. Led the OiPlay application with micro-frontend and technical documentation.

NodeJS React Redux Oracle Commerce Micro Frontends Ecommerce

Software Engineer

Provider IT

Dec 2012 - Jan 2018 (5 years 1 month)

Developed Java applications, web services, and corporate integrations. Worked on projects for Bradesco Seguros, CNSEG, Azul Seguros, and RioCard using Spring Boot, REST, IBM Integration Bus, WebSphere, SOA, and WSDL. Participated in the winning project of the IBM + Provider IT Hackathon: Sinistro Inteligente.

Java Spring Boot REST IBM Integration Bus Websphere SOA WSDL