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William Cox Email & Phone Number

Software Engineer at Toptal at Milliman
Location: Mesa, Arizona, United States 13 work roles 3 schools
1 work email found @toptal.com 5 phones found area 435, 801, and 207 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 5 phones

Work email w****@toptal.com
Direct phone (435) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Software Engineer at Toptal
Location
Mesa, Arizona, United States

Who is William Cox? Overview

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Quick answer

William Cox is listed as Software Engineer at Toptal at Milliman, based in Mesa, Arizona, United States. AeroLeads shows a work email signal at toptal.com, phone signal with area code 435, 801, 207, and a matched LinkedIn profile for William Cox.

William Cox previously worked as Senior React Developer at Milliman and Software Engineer at Toptal. William Cox holds Web Development from Devmountain.

Company email context

Email format at Milliman

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{first}.{last}@toptal.com
86% confidence

AeroLeads found 1 current-domain work email signal for William Cox. Compare company email patterns before reaching out.

Profile bio

About William Cox

I am a Utahn currently contracting through Toptal. Early on in my career I taught myself JavaScript to build a CRM solution for a previous employer. The CRM prevented thousands of clients from slipping through their system. While this success saved the company millions of dollars, my greatest takeaway was my newfound love for programming. Seven years later, my motivation is the same–to build software that matters. I aim to provide the highest quality product on the market while using the latest technologies in the industry.

Listed skills include Microsoft Office, Customer Service, Powerpoint, Public Speaking, and 22 others.

Current workplace

William Cox's current company

Company context helps verify the profile and gives searchers a useful next step.

Milliman
Milliman
Software Engineer at Toptal
AeroLeads page
13 roles

William Cox work experience

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

Senior React Developer

Current

Seattle, WA, US

  • Integrated AG Grid to replace their Kendo grid implementation that was causing recurring bugs and unnecessary re-renders. This isolated a lot of complex logic that wasn't fully unit tested.
  • Centralized many components into a shared library accessible to all their front-end applications.
  • Incorporated the Carbon component library into their components and provided visual automated testing with Storybook.
  • Took time to ensure new and existing features had ample automated testing in each task. Used Jest to provide unit and integration testing and Playwright for E2E tests.
  • Iteratively migrated MobX-dependent components to Redux. Maintained a custom middleware to allow both data management libraries to communicate and sync state.
May 2022 - Present

Software Engineer

Current

Work From Anywhere, Remote, OO

  • Companies I've worked for through Toptal:
  • Milliman LTS
  • Lighthouse
Aug 2021 - Present

Senior Software Engineer

San Francisco, CA, US

  • Contracted through Toptal
  • Architected and implemented a data feed "ingestor" and "digestor". This backend worker ingested updates from multiple 3rd party APIs with different properties and digested them into a headless REST API that fed our.
  • Improved operations by introducing better practices like testing (Jest + React Testing Library), using a component library that I architected, eliminating bloatware, and spending time working on tech debt each sprint.
  • Brought design and engineering together to build a system that would foster a seamless transfer between the two groups. This was done through the use of Tailwind CSS that enforced our shared design system.
Sep 2021 - Jan 2022

Software Engineer

Hyrum, Utah, US

  • Built a Next.js web application with server-side rendering to display marketing KPIs for franchisees learning how to run a business.
  • Wrote a RESTful API in Node.js with Express.js to serve live information from Google and Facebook Analytics.
  • Developed a UI and UX matching the company's brand and feel.
  • Incorporated a MySQL server to be the intermediary between third-party services and the front-end client.
Nov 2020 - Oct 2021

Software Engineer

Lehi, Utah, US

  • Rearchitected the legacy platform from PHP to Node.js to make it microservices-oriented.
  • Managed four learning management systems, including a legacy system, a new system, and two third-party systems.
  • Maintained 10+ Angular web apps, including a shopping cart, an admin app, and lead generation landing sites.
  • Integrated Salesforce within Career Step's platform.
Sep 2017 - Jul 2019

Full Stack Engineer

Rexburg, ID, US

  • Built a custom t-shirt design web application for bulk orders. Major clients included the Utah Jazz and universities.
  • Developed a PMS for the Textile Graphix administrative team.
  • Managed all aspects of technology in a startup environment
Sep 2017 - Jan 2019

Junior Full Stack Developer

Lehi, Utah, US

  • Student turned employee
  • Assisted DevMountain with Salesforce integration
  • Built housing portal for both management and tenants
Mar 2017 - Sep 2017

Pv Design Manager

Lehi, Utah, US

  • Managed and started 6 state offices, comprising of a team of 24 CAD Technicians
  • Programmed a small CRM that saved the company’s most important offices from failure
  • Worked with state offices to create accurate drawings in compliance with electrical, building, and fire codes
Oct 2015 - Jun 2016

Structural Engineer Technician

Lehi, Utah, US

  • Reviewed the structural integrity of every customer's attic system
  • Determined if roof system could support load of solar arrays
  • Provided specific letter ensuring the roof system qualified for solar
  • Developed VBA Excel program to automate the letter writing system* *program increased the accuracy of each review significantly and shaved off 4-5 minutes of work per review. Resulted in less permitting rejections, a.
Apr 2015 - Oct 2015

Team Lead

Lehi, Utah, US

  • Assisted in opening a new CAD office
  • Managed office email
  • Ensured accuracy for each design our team created
  • Trained CAD technicians to provide accurate designs in a timely manner
  • Assisted in managing team of 28 CAD technicians
  • Developed account managing program* *program solved a problematic backlog of 2000 pending designs. Provided visibility to company which initiated informed action. Resulted in the success and continuation of the office.
Mar 2014 - Apr 2015

Cad Technician

Lehi, Utah, US

  • Recruited to join CAD tech team for new and growing company
  • Calculated solar array production report
  • Designed plans for electrical connection to solar array
  • Designed solar installation diagrams
  • Designed optimal system for customers
  • Doubled minimum production expectations everyday
Oct 2013 - Mar 2014

Caretaker

  • Took care of people with congnitive disabilities
  • Set goals with clients to become independent
  • Helped maintain a healthy lifestyle
  • Taught financial and social responsibilities
  • Worked overnight to ensure client's safety
  • Earned employee of the month* *received award for availability and dedication towards Eaton Alliance's clients.
Aug 2013 - Dec 2013

Appointment Setter

Ocala, Florida, US

  • Generated customer leads from both California and Utah
  • Created interest in possible refinance options
  • Set dependable appointments with new customers
  • Assisted mortgage lenders at appointments
  • Managed team of lead generators
  • Trained lead generators to produce minimum expectation
Sep 2012 - Nov 2013
3 education records

William Cox education

Web Development

Devmountain

Computer Science

Brigham Young University

Associate'S Degree, General Studies

Utah State University
FAQ

Frequently asked questions about William Cox

Quick answers generated from the profile data available on this page.

What company does William Cox work for?

William Cox works for Milliman.

What is William Cox's role at Milliman?

William Cox is listed as Software Engineer at Toptal at Milliman.

What is William Cox's email address?

AeroLeads has found 1 work email signal at @toptal.com for William Cox at Milliman.

What is William Cox's phone number?

AeroLeads has found 5 phone signal(s) with area code 435, 801, 207 for William Cox at Milliman.

Where is William Cox based?

William Cox is based in Mesa, Arizona, United States while working with Milliman.

What companies has William Cox worked for?

William Cox has worked for Milliman, Toptal, Lighthouse, Hubsuite, and Career Step.

How can I contact William Cox?

You can use AeroLeads to view verified contact signals for William Cox at Milliman, including work email, phone, and LinkedIn data when available.

What schools did William Cox attend?

William Cox holds Web Development from Devmountain.

What skills is William Cox known for?

William Cox is listed with skills including Microsoft Office, Customer Service, Powerpoint, Public Speaking, Management, Project Management, Microsoft Word, and Autocad.

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