Sean McCall
Verified Expert in Engineering
Design Developer
San Diego, CA, United States
Toptal member since August 21, 2019
Sean is a senior developer with a broad and versatile skillset who works heavily in React, React Native, and Node.js. He has an entrepreneurial spirit and a midwest work ethic and has worked with a large range of companies of different sizes and scopes. His strong theoretical and practical background in software architecture, UI design, DevOps, and business consulting makes him extremely capable of bringing success to projects of any size.
Portfolio
Experience
- Design - 8 years
- JavaScript - 7 years
- App UX - 6 years
- React - 5 years
- React Router - 4 years
- React Native - 3 years
- DevOps - 3 years
- Android - 3 years
Preferred Environment
Git, Xcode, WebStorm, MacOS
The most amazing...
...thing I've built is a systems integration testing automation app that saved a client over $1 million per year in saved time.
Work Experience
CEO and Co-founder
Unaty
- Designed and built a single page application all-in-one social workspace platform from scratch, now used by over 10,000 people.
- Shipped an integrated file system, events management, members/guests, teams/roles, permissions structure, tasks, wiki, and much more.
- Designed and implemented a REST API to access all functionality.
- Ported React application to React Native and built a mobile app.
- Compartmentalized front and back-end functionality into generalizable functions.
Full-stack Developer
Freelance
- Implemented three separate multi-language and currency eCommerce shops for European jewelry, sports, and shopping sites.
- Provided graphic design work for over 100 clients over 5 years - all work received through referrals.
- Automated deployment of static websites using Hugo and education of small business owners on usage.
- Created a custom WordPress theme that better handles multi-lingual and multi-currency shops.
- Built business process workflow builder to integrate multiple SaaS services using Angular, Express.js, and Python.
- Conceptualized and developed a group study/university planning application with events/documents/groups/calendar functionality using Angular/MongoDB/Express.js.
Working Student
Accenture
- Created an automation app using Node, Express.js, and SAP software that saved the client over $1 million per year in saved time by automating global systems integration testing for major chip manufacturer.
- Named contributor on internal assets relating to software architecture.
- Conducted business risk assessments on the software landscape for major financial institutions across the world.
UI/UX Designer and Developer
Eichmeister Advertising Agency
- Conceptualized and built multiple sites and marketing funnels for European SMBs.
- Brought in new business and expanded existing business accounts with creative customer offerings.
Head of Marketing
Clarion River Brewing Company
- Coordinated and launched a major marketing campaign that reached tens of thousands.
- Grew online presence from 0 to over 6,000 followers in 1 week, direct contribution to the company's bottom line.
Experience
Unaty
Education
Progress towards a Bachelor's Degree in Business Administration
Ludwig-Maximilians-Universität - Munich, Germany
Skills
Libraries/APIs
React, React Router, Node.js, React DnD, LinkedIn API, Facebook API, React Redux
Tools
WebStorm, CircleCI, Xcode, Git, Microsoft Excel, Jenkins, Sublime Text
Languages
JavaScript, PHP, HTML, CSS, Python, Hugo, SQL
Frameworks
React Native, Angular, Express.js
Storage
MongoDB, Amazon S3 (AWS S3)
Paradigms
DevOps
Platforms
iOS, MacOS, Meteor, Mailgun, WordPress, Amazon Web Services (AWS), Android, Firebase, Salesforce
Other
Design, App UX, UX Flows, UX Architecture, Architecture, SAP
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring