Cao J.

Cao J.

Ontario, Canada
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About Me

Experience years: 8<br> Last experience details: I worked as a senior developer and technical team lead for a Swedish startup company. It mainly provided fintech services like BTC trading info.<br><br>I was in charge of developing the whole hybrid MLM system that consists of 6 web apps, with the IT team.<br> Short description: I am a senior frontend-heavy full-stack developer with more than 9 years of professional work experience. I am specialized in developing standard and optimized frontends using the leading stacks such as React/Redux, Vue/Vuex, Typescript, React Native, GraphQL, etc.<br><br>Though I am focused in frontend development, I have rich experience in backend as well, such as Node.js/Express.js, Djanog, Laravel, etc.<br><br>I have worked for several startups in the industries like Fintech, SAAS, B2B, B2C, E-Commerce, Business, Ads, Data Processing, etc.<br><br>Now, I am looking for a US-based remote job position. I am ok with a full-stack developer job position, but a frontend developer position is preferred.

Frontend

React.js React Native React Hooks Vue.js Vuex Angular.JS JavaScript HTML CSS Bootstrap

Backend

Node.js Express PHP Laravel Framework

Database

MySQL

QA & Testing

Jest Cypress

Other

Redux Vanilla Typescript Nuxt.js jQuery CodeIgniter Framework Enzyme Java JavaServer Pages (JSP) Graphql Google's Puppeteer WordPress WooCommerce Magento Drupal

Work history

UpStack
UpStack
Senior Frontend Developer
2021 - Present (4 years)
Remote

  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware.

  • Ensure that features are being delivered efficiently and on-time.

React.jsReduxReact NativeVanillaVue.jsVuexHTMLCSSBootstrapPHPLaravel FrameworkNuxt.jsNode.jsExpressjQueryMySQLWordPress
Freelance
Freelance
Senior Software Engineer
2020 - Present (5 years)
Ontario, Canada

  • Transform software designs and specifications into high functioning code and write clean and scalable code to create software solutions.

  • Perform upgrades to expand, increase efficiency, improve security, and integrate different software solutions into existing systems.

  • Tracks and fixes errors in code and software solutions through rigorous testing, debugging, troubleshooting and documentation.

HTMLCSSVanillajQueryBootstrapPHPLaravel FrameworkReact.jsReduxVue.jsVuexNuxt.jsTypescriptNode.jsExpressReact Native
Elysium Capital Corporate
Elysium Capital Corporate
Lead Software Engineer
2018 - 2020 (2 years)
Malmo, Sweden

  • Produced and implemented tools for a hybrid MLM compensation system for Elysium.

  • Packaged and supported the deployment of releases - integrating third-party APIs like Multibank, Equiti on the solution.

  • Determined the best course of action for live-streaming BTC data in real-time and implementing payment systems for Elysium.

HTMLCSSVanillajQueryBootstrapPHPMySQLReact.jsReduxVue.jsVuexNuxt.jsTypescriptLaravel FrameworkNode.jsExpressReact Native
Synergo Group
Synergo Group
Chief Technology Officer
2015 - 2018 (3 years)
Ontario, Canada

  • Led Synergo's dev team to develop and deploy intuitive web apps and mobile apps for analyzing different casino games.

  • Followed established standards in building reusable and modular components for sharing across apps using React Hooks, Tailwind, and Emotion.

  • Led Synergo's dev team on several IT tasks and extra projects for the company - resolving day-to-day complexities and technical issues.

React NativeReact HooksTypescriptGraphqlReact.jsReduxSCSSBootstrapTailwind CSSJestEnzymeCypress
Insigma Hengtian Software Ltd
Insigma Hengtian Software Ltd
Junior Web Developer
2013 - 2015 (2 years)
Shangai, China

  • Developed new frontend services, improved existing functionalities and wrote unit and E2E tests for React components and apps using Jest, Enzyme, and Cypress.

  • Built reusable, high-quality, efficient, and scalable code and modular components for Hengtian's app.

  • Developed and deployed a responsive internal workforce management system for Hengtian - delivering a mobile-friendly PWA solution on the project.

WordPressWooCommercePHPLaravel FrameworkAngular.JSNode.jsReact.jsReact NativeJavaMagentoGoogle's Puppeteer
NETK5
NETK5
Software Engineer
2011 - 2013 (2 years)
Shangai, China

  • Worked on new developments for clients - building 18 custom websites for e-commerce, business, startups, and blogging, using WordPress.

  • Develop modern web components and services on the project - integrating ElasticSearch with MySQL for better database handling and querying.

  • Designed, developed and implemented a real-time AI chat platform for NEWK5 using Socket.IO and Dialogflow.

HTMLCSSJavaScriptPHPWordPressDrupalJavaServer Pages (JSP)CodeIgniter Framework

Showcase

Lead Developer - BigData 666
Lead Developer - BigData 666

  • Developed a suite of innovative analytic tools for casino game players, focusing on roulette game strategy and decision-making.

  • Created a web and mobile app with frontend and backend solutions, including visualization and graph-based data analysis.

  • Led the development of both the web and mobile app, ensuring seamless integration of payment APIs.

Senior Frontend Developer / Team Lead - Shoclef
Senior Frontend Developer / Team Lead - Shoclef

  • Developed and deployed an integrated eCommerce vendor website for 1000+ small shops.

  • Implemented a live streaming solution with Janas server and Turn server for vendor interaction and product explanation.

  • Introduced a chat option for customers during live streams, enabling Q&A.

Lead Developer - Elysium Hybrid MLM System
Lead Developer - Elysium Hybrid MLM System

  • Developed a membership portal for investors and brokers of Elysium Capital.

  • Built the solution as a complete framework with modular expansion capabilities.

  • Implemented features for the homepage, user panel, admin panel, and partner sites.

Education

BSc. Computer Science
BSc. Computer Science
Fudan University
2007 - 2011 (4 years)