Hello, I’m Tarcisio Wesley, a Full Stack Engineer with over 4 years of experience across mobile, frontend, backend, and data layers. I’ve built and maintained production systems using React Native, React, TypeScript, Laravel, Node.js, REST APIs, and SQL databases, while integrating third-party services. I enjoy owning architecture end-to-end—from database and API design to user-facing delivery, testing, and release workflows. I’ve led small teams, worked directly with clients, and shipped systems used in financial services, business operations, and live event environments. I’m based in Tokyo, available immediately.…

Tarcisio Wesley

Hello, I’m Tarcisio Wesley, a Full Stack Engineer with over 4 years of experience across mobile, frontend, backend, and data layers. I’ve built and maintained production systems using React Native, React, TypeScript, Laravel, Node.js, REST APIs, and SQL databases, while integrating third-party services. I enjoy owning architecture end-to-end—from database and API design to user-facing delivery, testing, and release workflows. I’ve led small teams, worked directly with clients, and shipped systems used in financial services, business operations, and live event environments. I’m based in Tokyo, available immediately.…

Available to hire

Hello, I’m Tarcisio Wesley, a Full Stack Engineer with over 4 years of experience across mobile, frontend, backend, and data layers. I’ve built and maintained production systems using React Native, React, TypeScript, Laravel, Node.js, REST APIs, and SQL databases, while integrating third-party services.

I enjoy owning architecture end-to-end—from database and API design to user-facing delivery, testing, and release workflows. I’ve led small teams, worked directly with clients, and shipped systems used in financial services, business operations, and live event environments. I’m based in Tokyo, available immediately.

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Skills

Experience Level

React Native
Expert
TypeScript
Expert
React JS
Expert
JavaScript
Expert
MySQL
Expert
Node.js
Expert
PostgreSQL
Expert
API
Expert
Docker
Expert
Laravel
Expert
Github
Intermediate
CSS
Intermediate
HTML5
Intermediate
Jira
Intermediate
SQLite
Intermediate
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Language

English
Advanced
Portuguese
Fluent
Japanese
Beginner

Work Experience

Full Stack & Mobile Developer - Tech Lead at SR Consulting
July 1, 2024 - August 31, 2025
Owned the architecture of a Salesforce-integrated React Native app for internal field sales teams across two B2B client operations, serving around 50 sales representatives. Defined data models, sync strategies, API-facing contracts, and release workflows for mobile purchase and account data connected to Salesforce. Led a 1-4 developer team, handled client-facing requirement discussions, translated business needs into technical scope, and delivered the first version in 3 months, followed by biweekly releases and stability improvements. Improved reliability for users in low-connectivity environments through local data handling, reconnection-aware sync, and practical release control.
Full Stack Developer -> Mobile Team Lead at GAFIT Solucoes
November 1, 2021 - July 31, 2024
Worked across backend, frontend, mobile, and database layers on production projects using Laravel, SQL databases, React, and React Native. Led end-to-end delivery for TAMBASA Financeira mobile flows, including loan requests, payment flows, document handling, and complex business-rule interfaces. Integrated production systems with Itau, Mercado Pago, and Movidesk, supporting real financial, payment, and customer-support workflows. Promoted to Mobile Team Lead on the Mineirao stadium app, contributing to user-facing ticketing and event journeys that remain active in production. Supported reporting flows, query optimization, release planning, and technical coordination across mobile and web in a 1-4 developer team.

Education

B.Sc. in Mobile Development at Ampli Anhanguera
January 1, 2023 - January 1, 2026

Qualifications

Programming from Scratch (Intensive)
January 1, 2021 - May 20, 2026
English for Developers
January 1, 2024 - May 20, 2026
Developer with AI Agents
January 1, 2026 - May 20, 2026

Industry Experience

Financial Services, Professional Services, Media & Entertainment, Software & Internet, Other
    paper falaGENKI A Japanese learning app built for Portuguese speakers.

    falaGENKI
    A Japanese learning app built for Brazilian Portuguese speakers.

    falaGENKI is an Expo + React Native product that turns early Japanese study into a local-first daily learning loop: guided kana and grammar paths, SRS review, Anki-compatible decks, and a City Pop listening mode where vocabulary can move from lyrics into review.

    The project is still in active development, but it already demonstrates the kind of work expected from a production mobile codebase: typed domain models, local persistence, content validation, audio pipeline tooling, premium/account foundations, Storybook previews, and automated tests.