Jeffrey Sweeney
Verified Expert in Engineering
Software Developer
Bennington, NH, United States
Toptal member since June 26, 2019
Jeffrey is a software developer with over eight years of experience—comfortable with a myriad of tools and libraries (React 16, Redux, Redux-Saga, Vue/Vuex, TypeScript) and more than proficient with accessible HTML5, responsive CSS, and JavaScript on both the front and back ends. Jeffrey is also handy with Node.js, npm, Webpack, Babel, Express, Sass, and whatever else is needed to spin up a development environment, run tests, or deploy components.
Portfolio
Experience
- JavaScript - 12 years
- HTML5 - 8 years
- CSS3 - 8 years
- Git - 8 years
- Web UX - 8 years
- Node.js - 6 years
- React - 5 years
- Web Accessibility - 3 years
Availability
Preferred Environment
Atom, Terminal, MacOS
The most amazing...
...things I've developed include a quick React-Redux app npm package that I used to build my personal website, as well as Swab.am, an SVG animation SPA.
Work Experience
Senior Software Engineer
Sorcero
- Led the front-end development of medical insights management.
- Reprogrammed the majority of the front end for intelligent publication monitoring.
- Created interactive timelines, maps, heat maps, line charts, and bar charts.
- Collaborated with product owners to define technical requirements.
- Worked with designers to convert mockups into application code.
- Wrote unit and automated tests using Jest and Playwright.
- Assisted in Python API development using PostgreSQL and SQLAlchemy.
Full-stack Developer
Xplorstem
- Developed an authentication service for a Next.js/Express.js website.
- Integrated SendGrid to allow for account password reset.
- Added the ability to develop the application locally without relying on AWS using Docker and MySQL.
- Discussed approaches and best practices for other planned site features.
Web UI Developer
Shooting Academy Canada Ltd
- Developed interactive tools that allowed website visitors to customize and visualize strings for longbows, crossbows, etc. and create arrows for different bows.
- Created a tool for the client to customize the string-builder store options.
- Hooked up the string- and arrow-builder interfaces into Shopify via Shopify's front-end REST API.
- Investigated and fixed some minor issues related to various Shopify plugins.
Front-end Developer
Imperial College London
- Refactored and recreated the front end of a bacteria querying tool using Create React App and Bootstrap. Added infinite scrolling logic and an about-info drawer to the common website banner.
- Developed an interactive histogram component from scratch for displaying information about bacterial isolates using the HTML5 Canvas.
- Created an interactive, easy-to-decipher species containment stacked bar graph from scratch using the HTML5 Canvas.
- Built an interactive, speedy gene visualizer that can render and display millions of entries of genomic information and an optimized, efficient table of species information with thousands of entries.
Full-stack Developer
Topshelling
- Developed the front end of a proof-of-concept (POC) web application for adding a listing and removing information about boutique items, such as their name, description, markdown, and picture.
- Hooked into HTML5 camera APIs, allowing users to either upload or take a screenshot of an item with their phone and add it to the product description.
- Created a POC back end in Node.js and Express.js for retaining information about boutique items in memory.
Front-end Engineer
Anthem [Now Elevance] - AI
- Developed and maintained a telehealth operating system, an RTC platform connecting doctors and patients from around the world.
- Integrated real-time communication and chat messaging with Twilio.
- Developed an application-guided tour with in-house React code.
- Converted Zeplin mockups into UI and common components.
Freelancer | Consultant
Independent Freelance Work
- Created and recorded over six hours of JavaScript video tutorials.
- Converted static HTML/CSS into an interactive Vue.js/Vuex UI.
- Developed a deployment environment for maintaining a small website.
- Hooked into PHP Google Drive APIs to connect Google Docs and Google Calendar to a website.
- Consulted clients on best practices in regard to front-end technology and accessibility.
Senior Front-end Developer
Avid Technologies
- Worked with a small team to develop the player, sequence, and audio components of Avid's MediaCentral | Cloud UX, a web app for browsing, playing, and logging media.
- Served as a scrum master for a year and a half, performing administrative duties and ensuring stakeholders were always informed about the team's status on features.
- Worked closely with the UI team, converting mockups and offering advice on accessibility and consistency with the rest of the application.
- Maintained our local RHEL development server by evolving our application's back end from Java to NGINX to Docker to Kubernetes.
- Wrote Node.js build and deployment scripts to allow us to release components regularly in an agile manner.
- Composed manual, unit, automated, and integration tests in Gherkin, Mocha, Jest, TestCafe, and a bit of Groovy Selenium.
Experience
Quick React-Redux App
https://www.npmjs.com/package/quick-react-redux-appUnlike other tools, this utility is not particularly married to a technology stack; due to the fact, it creates a project with very few dependencies, it does not suffer slowdowns typical in more heavy-handed bootstrappers.
There is also no eject step required to deploy for the web, just running "NPM run build" generates all the needed files.
This project has been field-tested in a number of my projects.
Swab Animator
http://jsweeneydev.com/projects/swab/index.htmlIt uses React and Redux to drive the UI and is architected in a declarative, event-sourced way that theoretically would allow for infinite undo or multi-user editing.
Avid MediaCentral | Cloud UX
https://www.avid.com/products/mediacentral/mediacentral-acquireLitify Referral Network
"The Litify Referral Network is an all-in-one platform solution that allows law firms of all sizes to easily send, receive, and manage legal case referrals for FREE."
The front-end portion of this application is written in ReactJS with a small auxiliary Express server for serving mostly static content. My primary task was to clean up the front and back ends of this application for development and production.
I updated all of the npm dependencies (including updating to the latest versions of React and react-router) and refactored the build scripts and Express server to be as atomic and simple as possible. I also recreated a number of components, including a custom date picker and a brand new sign-up page and flow.
The application no longer has serious dependency vulnerabilities, is much leaner, and runs much faster.
Monadnock Congregational Church
http://monadnockcongregational.com/Noteworthy features are under the hood. The website can be updated and published with a single script, compiling the Vue.js templates and sending the files to the webserver via FTP with a custom node script. A small PHP script retrieves Google Calendar information.
Strata — Raven Black
My responsibilities were primarily on the Vue.js and TypeScript-heavy front end, but I also started to work on their to-be-published Hugo website.
Transplant Services — Health Data Movers
https://www.healthdatamovers.com/services/clinical-business-applications/Education
Associate's Degree in Computer Science (Networking)
River Valley Community College - Claremont, NH, USA
Skills
Libraries/APIs
Vue, React Redux, React, Node.js, REST APIs, CanvasJS, Redux-Saga, Vuex, Preact, jQuery, React Router, Socket.IO, Google Drive API, D3.js, SQLAlchemy
Tools
NPM, Babel, Webpack 4, Git, Mocha, Canvas 2D, Canvas, Redux Thunk, Adobe Illustrator, Adobe Photoshop, Rollup, GitHub, Terminal, Atom, Webpack, Jira, NGINX, Sequelize, SendGrid, Snowpack
Languages
JavaScript, HTML5, CSS3, CSS, HTML, Gherkin, PHP 5, Sass, Hugo, TypeScript, Java, Python
Frameworks
Redux, Express.js, TestCafe, Jest, Material UI, Svelte, Nuxt.js, Tailwind CSS, Angular, Bootstrap, Next.js
Platforms
MacOS, Unix, Twilio, Docker, Kubernetes, Shopify
Paradigms
Functional Programming, Agile Software Development
Storage
MySQL, MongoDB
Other
APIs, Web UX, Ajax, Fetch API, UI Development, Front-end, User Interface (UI), Architecture, API Integration, Responsiveness, WebSockets, Web Accessibility, Full-stack Development, Third-party APIs, Full-stack, CSS3 Animation, RHEL, SVG, Storybook, Axios, Monorepos, Development
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