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William Jefferies Email & Phone Number

Full Stack Web Developer | JavaScript | Python | C#
Location: Denver, Colorado, United States 3 work roles 1 school
1 work email found @generalassemb.ly LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 71%

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Role
Full Stack Web Developer | JavaScript | Python | C#
Location
Denver, Colorado, United States

Who is William Jefferies? Overview

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William Jefferies is listed as Full Stack Web Developer | JavaScript | Python | C# based in Denver, Colorado, United States. AeroLeads shows a work email signal at generalassemb.ly and a matched LinkedIn profile for William Jefferies.

William Jefferies previously worked as Web Development Immersive Fellow at General Assembly and Supervisor at Jefferies Construction Solutions. William Jefferies holds Computer Programming, Specific Applications from General Assembly.

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Profile bio

About William Jefferies

I am a deep-thinking, creative individual with a passion for knowledge and self-improvement. I believe in scalable user-focused interface and clean code. The driving entity behind what I do, what I invent, and what I invest into a project, is the desire to help people. My background in construction drove me to take my solution-oriented attitude and quality assurance into the world of programming. I improve by continuously adapting and building so that I can achieve stunning products that appeal to clients, colleagues and consumers. I look forward to a life of exploring computer science and learning exciting new languages and frameworks!I have experience using languages such as Python, JavaScript, C# and Ruby.Along with these I have used frameworks such as Django, Express, Meteor, Loopback, ASP.NET and Rails.Some database management systems I've used include PostgreSQL, MySQL and MongoDB.I have built and served JSON from REST APIs and I have experience using third-party APIs.My client-facing skills include using libraries such as React, Bootstrap, jQuery, along with a deep understanding of CSS3 and CSS Grid, Sass and Less preprocessing, Responsive and Mobile-First design methodologies. I primarily use OS X and Windows 7/10 but am also familiar with Ubuntu Linux and Arch Linux.

3 roles

William Jefferies work experience

A career timeline built from the work history available for this profile.

Web Development Immersive Fellow

New York, Ny, Us

During my time at General Assembly, I studied and learned about the fundamental and intermediate machinations of web development and software engineering. The course was heavily centered around JavaScript and its many libraries and frameworks. Throughout the three month program, we were given five projects to complete.The first project was to build a game. I enjoyed this assignment more than anything as I am an aspiring game developer/hobbyist. I built a game in which two players (cats with jetpacks) play one-on-one basketball and try to get to ten points first. Taking on this project after only three weeks of basic JavaScript was incredibly daunting but even more so rewarding. People seemed to like it which was my goal.The second project was to build an Express app using either a RESTful API or a third party API. I built an app that fetches bad movies for users (who are into that sort of thing) and saves them into a 'watchlist'. I used TMDB's API to fetch JSON data and built a REST API to save that data and handle user authentication/authorization. The third project was focused mainly on React and using it to build a modular client-facing app. I chose to decouple my project by building a Node/Express API and having my React app fetch data from it. I created an app that allows users to look up pinball tutorials for specific machines. The app also features a pinball 'event board' for folks looking for tournaments or fun get-togethers.The fourth project was the most important for me. For this assignment, we were put into groups and tasked with building an app in Python using the Django framework. It was the first time we were exposed to team workflow on Github, which was extremely important to get used to. It was fast-paced and involved heavy communication. My final project was a revisitation of my second project. I wanted to see how quickly I could redesign and prototype a better version by using Python/Django instead of Express.

Mar 2018 - Jun 2018

Supervisor

Jefferies Construction Solutions

Coordinated construction project activities to meet deadlines.Made material and product orders to complete construction projects.Worked closely with personnel, owners, and sub-contractors to discuss and resolve matters such as work procedures, complaints, or construction problems.Oversaw craft work from painters, masons, carpenters, granite and concrete companies.Knowledge of arithmetic, algebra, geometry, calculus, and their application in a construction environment.Created custom, modern woodwork for homes. Observed critical problems daily and used logic and reasoning to identify alternative solutions and approaches.

Apr 2016 - May 2017

Assistant Manager

Experience with Vision POS system to monitor sales data, manage inventory and graph projections.Monitored sales activities to ensure that customers receive satisfactory service and quality products at a fair price.Met with manager to develop methods and procedures to increase sales and promote business.Examined merchandise to ensure that it is correctly priced, displayed and maintained.Instructed staff on how to handle difficult or complicated situations. Communicating with customers, speaking clearly and using proper terminology, and listening intently for their needs and concerns.Clearly and politely handling vendor or customer phone conversations while multitasking.

May 2012 - Apr 2016
1 education record

William Jefferies education

  • General Assembly
    General Assembly
    Specific Applications
FAQ

Frequently asked questions about William Jefferies

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What is William Jefferies's role at their current company?

William Jefferies is listed as Full Stack Web Developer | JavaScript | Python | C#.

What is William Jefferies's email address?

AeroLeads has found 1 work email signal at @generalassemb.ly for William Jefferies.

Where is William Jefferies based?

William Jefferies is based in Denver, Colorado, United States.

What companies has William Jefferies worked for?

William Jefferies has worked for General Assembly, Jefferies Construction Solutions, and Bullfrog Wine & Spirits.

How can I contact William Jefferies?

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What schools did William Jefferies attend?

William Jefferies holds Computer Programming, Specific Applications from General Assembly.

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