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Israel Lopes
From Brazil
$42,000/yr

Active 1 hour ago


Member since Oct 2026

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Senior Full Stack Engineer

Full-Stack Engineer
Available for hire
Years of experience
7+ years
Experience level
Senior
Available for
Full-time, Part-time, Contract, Freelance
Available from
21 Oct 2026
Download Resume / CV

I'm a Senior Software Engineer with 7 years of experience building web and mobile applications, with a strong focus on frontend development and solid experience with backend systems. My main stack includes React, Next.js, TypeScript, Node.js, NestJS, PostgreSQL, and React Native. Throughout my career, I've worked on different types of products, from financial and business applications to internal platforms and systems that handle complex business rules and integrations. I've been involved in the full development process, from understanding requirements and designing solutions to implementation, debugging, testing, deployment, and maintenance. I enjoy solving real technical problems, investigating issues that are difficult to reproduce, improving existing codebases, and finding simple solutions to complex problems. I'm also comfortable working with APIs, databases, cloud environments, third-party integrations, and distributed application architectures. I'm currently looking for remote opportunities with international teams where I can work as a Frontend, Backend, or Full Stack Engineer. I'm especially interested in companies where I can work on challenging products, collaborate with experienced developers, continue improving my English, and contribute with both technical skills and practical experience.

Employment History

Fullstack Developer | React | Node | Next Js at NeuralX Current 2023 - Now
* Built and maintained Next.js, React, and TypeScript applications for accounting and operational workflows, improving usability across core business processes. * Designed a dynamic, admin-driven component system for configuring client-specific interfaces and workflows, reducing manual setup effort by approximately 40–50%. * Redesigned bank reconciliation workflows and financial data presentation, reducing operational effort and improving workflow efficiency by approximately 30–40%. * Established reusable frontend architecture patterns and shared UI components, reducing duplicated implementation work and accelerating feature delivery across projects. * Built a Chrome extension that automated eSocial fiscal document downloads, eliminating approximately 5 hours of repetitive manual work per client each month.
Fullstack Developer | React | Next Js | React Native at Wedev 2021 - 2023
* Built web applications with React, Next.js, and TypeScript, implementing responsive interfaces, SSR, and reusable frontend architecture for business applications. * Developed corporate expense and travel management dashboards, centralizing operational data and reducing manual workflow steps. * Built production mobile applications with React Native and Expo, delivering responsive user flows focused on usability and performance. * Integrated third-party Web3 services using Ethers.js and MetaMask, implementing wallet connection, transaction handling, and blockchain interaction flows. * Developed cryptocurrency wallet and trading features for purchase and sell operations, including secure wallet interaction flows.
Fullstack Developer | React | Next Js | React Native | Node Js at Liquid Adserver 2020 - 2021
* Developed Node.js microservices supporting advertising delivery and operational processing in high-traffic environments. * Optimized backend services and request-processing flows, reducing API response latency by approximately 15%. * Built and maintained backend APIs supporting advertising operations and high-volume service workloads.
Fullstack Developer | Node Js | Javascript | Vue at SimpleAds 2019 - 2020
* Developed Node.js automation systems for high-volume data ingestion and processing workflows. * Built GraphQL APIs and optimized data retrieval flows for operational advertising systems. * Automated repetitive data ingestion workflows that previously required up to 5 days of manual execution, substantially reducing operational effort and improving processing consistency.

Education

Bachelor of Computer Engineer at CEUMA 2019 - 2023