Joshua King

SENIOR SOFTWARE

ENGINEER

+1-213-***-****

https://www.linkedin.com/in/josh-king-

169292181/

ad06k7@r.postjobfree.com

Senior Full Stack Engineer familiar with wide range of programming utilities and languages. Knowledgeable of frontend and backend development requirements. Handles any part of process with ease. Collaborative team worker with excellent technical abilities offering 8 years of related experience. Skills

• React / React Native / Redux

• Node.js / Express / Nest.js

• JavaScript / Typescript

• Angular / Vue / Next.js

• HTML5 / CSS3 / SCSS

• Bootstrap / MUI / TailwindCSS

• Rest API / GraphQL / Apollo

• Python / Django

• Java / Spring Boot

• SQL / MySQL / PostgreSQL

• AWS

• Socket.io / WebRTC

• Jest / Mocha / Cypress

• CI/CD

Experience

Senior Software Engineer Toptal San Francisco, CA May 2020 – Present

• Constructed a React and Node.js e-learning SaaS platform on AWS from scratch that achieved a 95% customer satisfaction rate and generated $382,000 in revenue in its first year.

• Increased web application rendering performance 10%.

• Successfully led the refactoring of a database from MongoDB to PostgreSQL, resulting in strengthened internal relationships and a 30% increase in platform performance.

• Enhanced learners' understanding by 13% through the implementation of a real-time chatting system and amplified daily traffic by introducing a leaderboard page.

• Led & Mentored junior developers, enhanced the code quality and customer-focused architecture, resulting in 30% reduction in code review time and 15% increase in on-time project delivery.

• Jenkins CI/CD pipelines for automated git checkout, linting, formatting, testing, deploying to the dev/staging/production environment, and sending notifications to Slack and Email.

• Worked in a cross-functional team including the CEO and CTO of a tech startup, collaborated efficiently, resulting in a 25% team productivity increase and a 30% saving of meeting time.

• Achieved a 30% increase in operational efficiency by proficiently managing legacy Node.js APIs for CRM, LMS, and mobile apps, and implementing SOLID principles to REST APIs with Nest.js

• Wrote 50+ unit tests per week to verify functionality of user interfaces, back-end processing, connectivity, and relational database interactions. Full-stack Engineer DockYard Inc Boston, MA March 2017 – May 2020

• Reduced loading time by 20% through optimization and implemented caching with react-query and lazy loading techniques.

• Built dashboard from Figma design using React, Redux, Material UI, Reactstrap, HTML, and CSS.

• Participated in all stages of the SDLC, successfully refactoring a transportation system based on Django, incorporating technologies like Nest.js, React, GraphQL and AWS.

• Used Jest for unit testing and Cypress for E2E testing resulting in a 30% reduction in bugs.

• Collaborated with designers, product managers and other engineers in scrum agile methodology with 2-week sprints.

Front-End Engineer Altas Dallas, TX November 2015 – March 2017

• Migrated an outdated dating website with over 50,000 users to a modern single-page application using React, Material UI and Tailwind CSS, resulting in a 20% increase in user engagement and a highly positive user experience

• Boosted code quality by 40% by converting a complex legacy JavaScript codebase to a modern and scalable system with Typescript, while implementing automated testing using Jest, Mocha, and Cypress.

• Built a fully responsive, home management platform using React, resulting in an average page load time of 2 seconds and a 30% improvement in website performance through image optimization and caching techniques

• Created reusable 60+ Storybook components to streamline the development process, improve cross-functional collaboration with designers, and accelerate project delivery. Education

The Hong Kong University of Science and Technology Hong Kong Bachelor of Science (B.S) in Computer Science

2011-2015

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