Leon Taylor

ad2tcr@r.postjobfree.com +1-204-***-**** https://www.linkedin.com/in/leon-taylor-74a26b262/ Summary

I am a result-driven and innovative developer with 12 years of experience in technical leadership and full-stack web development. My expertise includes web development, database design, cloud solution, Artificial intelligence, and implementing a microservice architecture, supported by a strong proficiency in multiple programming languages and technologies.

Experience

Senior Software Engineer

Freelance (Self employed)

Nov 2023 - Jan 2024 (3 month)

● Spearheaded the development of a Blockchain Lottery App using React, Web3.js, and Solidity, ensuring security and transparency, enhancing user engagement.

● Led the design and development of a Python/Django - React application integrating deep learning and machine learning, optimizing the processing and management of financial documents efficiently. Technologies: Amazon Web Services (AWS), JavaScript, HTML5, CSS, CSS3, Vanilla JS, D3.js, Three.js, Node.js/Nest.js, Python/Django, PHP/Laravel, React/Next.js, Vue.js, Trello, Web3.js, Ethers.js, Kubernetes Senior Software Engineer Frontend

Data.ai

Nov 2020 - Oct 2023 (3 years 2 months)

● Maintained direct communication with the CTO, effectively setting goals and priorities for the team, and ensuring alignment with organizational objectives.

● Created a PWA for multiple companies to manage appointments, invoices, expenses, and staff payouts using React, TypeScript, Node.js.

● Developed and deployed an AI-powered healthcare platform within 8 months for a home-care service company with Next.js, TypeScript, Python, GraphQL. The platform generated $5 million in revenue in its first year.

● Built a React Native mobile app to manage real estate properties, allowing users to upload their warranty documents, set up recommended reminders for home maintenance, and search for local contractors.

● Optimized the performance of Fusion Worldwide’s e-commerce site for over 200,000 products by 36% by refactoring the legacy code and applying the latest features of Next.js.

● Integrated GraphQL into web services to enable efficient data manipulation for product search and multiple filtering.

Technologies: JavaScript, Firebase, Gulp, Adobe Photoshop, Pixel Perfect, Redux Saga, MUI, TailwindCSS, Redux Thunk, ECMAScript (ES6), TypeScript, Front-end Development, Immutable.js, React, Webpack, Material Design, CSS, Sass, User Interface (UI), Git, Vanilla JS, Web3.js, Ethers.js, Node.js, Python/Django/Flask, Microsoft Azure, GCP Lead Frontend Engineer

MoonShot N.A.

July 2017 - Oct 2020 (3 years 4 months)

● Helped architect and implement the frontend model parser, emphasizing performance. Overcame many challenges such as loading data on-demand, reducing memory use, and optimizing UI render to support models.

● Successfully built and maintained software solutions to enhance the AI-power for real-estate companies.

● Migrated the Automated Application Security (AppSec) platform from its legacy design to a modern, more powerful and responsive version with improved visualization and user experience.

● Implemented automated end-to-end (E2E) tests in our Azure pipelines.

● Led technical discussions for React, and Next.js app’s performance optimization and played a pivotal role in solving the team’s technical challenges.

● Drove the frontend development of Ethereum dApp using React, TypeScript and Web3.js, and successfully delivered the project on time within budget.

Technologies: React, TypeScript, RxJS, VMware, Azure, CI/CD Pipelines, Front-end, Jest, Unit Testing, REST APIs, HTML5, CSS3, CSS, HTML,GraphQL, PostgreSQL, SendGrid, Node.js, SCSS, MUI, NestJS, Apollo, React Native, AWS Lambda, Angular, Next.js

Middle Senior Frontend Developer

Systematic

Mar 2014 - June 2017 (3 years 4 months)

● Led the development of several Single Page Application(SPAs) and Software as a Service (SaaS) products, showcasing expertise in React, Next.js, MVC-based frameworks, and Node.js.

● Contributed to the in-house UI library to create reusable components using React and Storybook that saved over average 120 hours of development time per month.

● Incorporated React with a headless CMS to develop a scalable and secure online store.

● Developed from start to finish a SMS marketing system and converted its frontend code from jQuery to React. The main technologies used include Node.js, React, jQuery, and MongoDB.

● Made React High-Order-Component to implement complement behavior and refactored JavaScript code.

● Applied advanced React features including Concurrent Mode, React Hooks, Suspense, CDN, and Caching strategy for performance optimization.

● Facilitated React Frontend architecture discussions and took initiative in mentoring 2 junior engineers in the team.

Technologies: Amazon Web Services (AWS), Angular, React, Next.js, Google Cloud, Docker, JavaScript, Node.js, Big Data, Full-stack, Python, C#

Web Developer

Microsoft

Jan 2013 - Feb 2014 (1 years 2 months)

● Combined Redux and Context API to handle complex states by separating states into local and global.

● Maintained and added some powerful features like Mortgage Calculator for Zillow Home Loans using React, D3 and Node.js.

● Developed an internal employee working track app to track the time and activities of their employees with jQuery, HTML, CSS and PHP/Laravel.

● Blended frontend auth with scalable, highly available backend using OAuth2.

● Collaborated with product owners, stakeholders, and engineering teams to identify and deliver high-quality code that meets the needs of the business and customers. Technologies: Amazon Web Services (AWS), Angular, React, Google Cloud, Docker, JavaScript, Node.js, Big Data, Full-stack, PHP, Laravel, jQuery, Python, Django

Education

Columbia University

Bachelor's degree, Computer Programming, Specific Applications 2008 - 2012

My university days were a transformative journey, blending academic pursuits with enriching extracurricular activities. From conquering challenges to forming lifelong friendships, each moment contributed to my personal and intellectual growth, leaving me with cherished memories and a deep sense of gratitude.

Licenses & Certifications

Triplebyte Certified

Credential ID: b4GIVEn

Skills

JavaScript • TypeScript • PHP • Python • React • Angular • Next.js • Web3.js • Ethers.js • VueJS • Nuxt.js • Django

• Node.js • Nest.js • Laravel • MySQL • PostgreSQL • MongoDB • TiDB • AWS • Microsoft Azure • GCP • Artificial Intelligence (AI)

Contact this candidate