Timothy Cato

Full Stack Developer

Actively looking · Member since 24 Jul 2025

Message

Location: United States

Desired salary: from 50 USD/hourly

Work preference: Full Time

Experience level: Not set

About

Professional summary

I am a Senior Software Engineer with over 10 years of experience in building high-performance, scalable web and mobile applications using technologies such as React, React Native, Node.js, and TypeScript. My expertise lies in front-end architecture, CI/CD automation, global state management, and cloud-native solutions. I am passionate about optimizing performance and leading cross-functional teams to deliver multilingual, responsive user interfaces. I take pride in writing clean code and enhancing developer productivity while creating intuitive user experiences across various platforms. Throughout my career, I have successfully collaborated with diverse teams to gather requirements and launch applications that meet user needs and business goals.

Skills

11 capabilities

Bootstrap CI CD JavaScript Material UI MongoDB MySQL Next.js PostgreSQL React React Native TypeScript

Experience

Career history

Senior Software Engineer MuleSoft

05/2021 – Present

Developed high-performance, responsive web and mobile applications using JavaScript, ES6, React, React Native, and TypeScript, optimizing components for a 33% boost in user engagement and 12% revenue growth. Built and maintained scalable applications with global state management using Context API, Recoil, and React Query, and integrated third-party libraries like Axios and date-fns. Collaborated with cross-functional teams to gather 40+ requirements and launch iOS/Android apps, enhancing technical clarity and accelerating delivery cycles. Designed and implemented a fully automated CI/CD pipeline, reducing average deployment time by 5x across mobile platforms. Led backend development using Node.js, microservices architecture, and serverless technologies (AWS Lambda, API Gateway, DynamoDB), ensuring high availability and performance. Secured applications with OAuth2 and JWT, and achieved 95% test coverage using TDD practices with Jest and Enzyme.

Senior React/Node Engineer Xebia

05/2018 – 04/2021

Spearheaded the creation of pixel-perfect, reusable React components, reducing development time by 38% and enhancing UI consistency and UX. Led the adoption of TypeScript across React projects, significantly reducing type-related bugs and boosting overall developer productivity. Built a multilingual Next.js website using built-in i18n routing, expanding accessibility for non-English users. Optimized large data set rendering and reduced HTTP requests by 69%, while integrating APIs (REST, GRPC, GraphQL, WebSocket) into scalable cloud solutions. Managed AWS RDS PostgreSQL clusters and used Databricks for big data analytics; followed Agile workflows with JIRA to ensure 95% on-time feature delivery.

Fullstack Developer hiberus

09/2014 – 03/2018

Assisted in developing and maintaining full-stack web applications using JavaScript, React, and Node.js under senior developer guidance. Collaborated on API integrations and database operations using Express.js and MongoDB, contributing to the delivery of key features. Participated in Agile ceremonies, used JIRA for task tracking, and gained hands-on experience in debugging, version control (Git), and deployment processes. Translated UI/UX designs from Figma into responsive interfaces, improving usability and accessibility across devices.