Open to opportunities

João Vitor de Souza

@joaovitordesouza

Message

Senior TypeScript engineer building reliable cross-platform product systems.

Portugal

Message

What I'm looking for

I’m looking for senior or staff-level remote roles.

Senior engineer with 13+ years shipping production-grade web and mobile products across startups, scale-ups, and enterprise. I operate where complexity is the product: realtime pipelines, cross-platform state, mobile lifecycle, AI integrations, multi-team coordination.

As lead frontend on a healthcare AI app, I defined the architecture the team builds against and owned the realtime audio and transcription pipeline end to end, including session lifecycle and recovery flows that keep hours-long recordings intact through backgrounding, network loss, and mobile unpredictability. I’ve also rebuilt complex, form-heavy enterprise tooling in TypeScript/Next.js and led greenfield frontend architecture work (Vue 3, Vite, GraphQL) while raising engineering hygiene through standards, testing, and CI/CD—now.

I’m open to senior and staff-level remote roles where I contribute at the system level.

Experience

Work history, roles, and key accomplishments

Current

Lead Frontend & TypeScript Engineer

Current

Remynd

Jul 2024 - Present (1 year 11 months)

Sole senior engineer leading technical direction of a React Native + Expo iOS/Android healthcare AI mobile product, acting as the engineering bridge between mobile, backend, and AI teams. Owned the end-to-end realtime audio and transcription pipeline, designing a state-machine-based session lifecycle with deterministic recovery flows and production-grade AI provider integrations to improve clinician-visible session reliability.

React Native Expo TypeScript Transcription Pipelines WebSockets State Machines Kotlin TurboRepo AI Integration Real Time Audio

Senior TypeScript Developer

INFORM GmbH

Jan 2023 - Jan 2024 (1 year)

Owned the migration of INFORM's WorkforcePlus internal back-office tool from a legacy stack to TypeScript and Next.js, rebuilding a form-heavy admin UX that maps scheduling-rule inputs to API contracts. Set code review and test quality baselines and served as the technical voice in stakeholder planning and migration scope discussions.

TypeScript Next.js React UX for rule based configuration Testing Legacy to modern migration API Design Code Review Legacy To Modern Migration

Senior Frontend Developer

Smart Consulting · Embedded at Evident (later acquired by Valtech)

Jul 2021 - Dec 2022 (1 year 5 months)

Led frontend architecture for the greenfield reimplementation of Mazars Signals (B2B compliance platform planned to scale across 90 countries), replacing a legacy Vue 2/jQuery/Sitecore setup. Authored stack-level decisions (Vue 3, Vite, GraphQL, testing, i18n), established engineering hygiene (linting/CI/Storybook), and delivered the implementation through to handoff with backend, design, and stak

Vue TypeScript Vite GraphQL Storybook Testing

Frontend Web Developer

Brief Creatives

Nov 2019 - Mar 2021 (1 year 4 months)

Led frontend delivery for websites and mobile apps for consumer brands, translating brand-critical designs into maintainable React, Vue, and Ionic implementations. Shipped branded experiences across WordPress and Shopify while partnering with designers and account teams to keep projects on-brand and on-schedule.

ReactJS Ionic WordPress Shopify Frontend Development Mobile Web Apps Design Systems Collaboration Maintainable UI

Full Stack Web Developer

Eyeso

Jan 2019 - Aug 2019 (7 months)

Joined an early-stage team to build a marketplace and social platform from zero, progressing work from initial commits to public beta launch. Developed end-to-end features using Vue.js and Symfony, applying SOLID principles, modular design, and testing while shaping product direction with founders and designers.

Vue.Js Vue.js Symfony SOLID Agile Frontend Development Backend Development Testing Modular Design

Full Stack Web Developer

Copytrack GmbH

Apr 2018 - Dec 2018 (8 months)

Contributed to a data-driven copyright enforcement SaaS that detects stolen images and enforces copyright. Designed, built, and deployed user-facing onboarding, profile, and dashboard flows into a production system with a large existing user base.