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Hire the best Prototype developers near St. Louis.

Toptal is a marketplace for top remote Prototype developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups in St. Louis choose Toptal Prototype freelancers for their mission-critical initiatives.
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Hire remote Prototype Developers near St. Louis or in a similar time zone

Ben Gottlieb

Member since March 22, 2018
Ben has been an iOS developer for the entire life of the platform and has worked on mobile devices for more than 20 years. He designed, built, and has maintained the most popular Crosswords app in Apple's AppStore for the last 10 years. He's done work on Apple's foundation OS code, designed Salesforce's internal REST framework, and written large-scale deployed apps for companies like Home Depot and Zimmer. Click to continue

Sean Desmond

Member since November 19, 2013
Sean is a top software engineer with a passion for exceptional design and a proven ability to build effective, scalable, multi-tiered solutions. He has over ten years of software development and architecture experience, and has worked a variety of roles, from individual developer to tech/team lead. Click to continue

Jake Varghese

Member since September 20, 2013
As an architect, Jake understands the process of solving complex problems that plague enterprise and medium size businesses. He is a full-stack problem solver--he can build entire apps from scratch or he can optimize an existing app already in the field. Click to continue

Jose Alonso Mendez Lieras

Member since March 4, 2015
Jose is a software engineer with over fifteen years of experience developing web applications. He is constantly learning and improving his skills, and loves to work with new technologies. He is a great communicator and a naturally curious individual. Click to continue

Haydn Vestal

Member since March 4, 2015
Haydn has a wide variety of experience across companies from a two-person startup to the investment bank Goldman Sachs, with 30,000 employees globally. His area of greatest consulting expertise is small- to mid-stage startups, but he also has experience with automated trading and Android development. Click to continue

Paulo Fierro

Member since October 30, 2013
Paulo is a freelance developer and architect with a passion for making beautiful digital things. Over the years, he has worked on iOS apps that have won awards, been featured by Apple, and reached the top of the App Store charts. Click to continue

Ethan James

Member since November 2, 2015
Ethan has worked on many different stacks, but always returns to his first love: JavaScript. He delights in connecting RESTful APIs to painstakingly-engineered front-ends using AngularJS, or whichever other framework provides the best user experience for the project. He writes clean, semantic HTML5 and CSS3 and is as responsive as the sites he builds. He is pleasant and diligent. Click to continue

Kamil Tusznio

Member since October 28, 2014
Kamil is a full-stack developer who builds outstanding products for early-stage startups, helping them drive their business and delight their users. He prides himself on completing projects on time and on budget, with clear and no-hassle communication throughout. Click to continue

Gary Court

Member since March 28, 2017
Gary is a senior software developer, architect, and manager with more than a decade of experience. He's worked on full-stack JavaScript development, website optimization, and user experience/interface design as well as project design and the management of software development teams. Click to continue

Ryan Jafari

Member since October 26, 2015
For over a decade, Ryan's been planning, managing, programming, and shipping on software projects. A back-end developer turned front-end developer, his passion lies in the delivery of superbly designed web/mobile experiences that help people interface with data, backed by simple, elegant, and scalable code. He's a master of UX development with various front-end frameworks and is always focused on choosing the right tool for the job. Click to continue
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Toptal in the press
“Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.”
Selina Wang
“Toptal allows corporations to quickly assemble teams that have the right skills for specific projects.”
Steven Norton
Testimonials
“Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it. ”
André Fischer
CTO @ POSTIFY
“Toptal has provided us developers for a wide range of projects. They are quick to provide candidates, and always very quick in communication. We have been happy with the quality of work from the developers as well as the Toptal representatives. Highly recommend!”
Gena Romano
Vice President of Digital @ VOX Global
“We've used Toptal developers multiple times for multiple projects, and they've always been world-class—regardless of whether they've been from South Africa, Brazil, or the United States.”
Alex Haro
CEO @ Life360
“I needed help, and fast. I did not want to hire a random coder I met online- I was worried about security, and many other issues. Toptal was there when I needed them- and has been fantastic to work with. Outsourcing is full of terrible stories- Toptal is the story that is the giant exception. I give them my highest recommendation.”
Michael Feder
Founder & CEO @ PrayerSpark
“I struggled for weeks with a Youtube API-specific problem and couldn't find anyone to solve it. Toptal immediately identified the right consultant who took the time to investigate the issue and resolve it quickly. The process was seamless and I will continue to use Toptal with any other issues that arise.”
Rohit Gupta
CEO @ Bollyshake
“Getting set up with Toptal and finding a new team member was so easy, I don't know why anyone wouldn't give it a try. Best of all, we no longer have to worry about finding great people to help with our projects!”
Mike Branch
President & CTO @ Harbor System Integrators, Inc
“We're a small firm with big dreams. After trying 4 or 5 local or outsourced developers, we were out of options. I'd heard of Toptal, but was worried that my company wasn't big enough for them. After calling them up, I found out that I didn't need to meet any minimum budget and was immediately put in touch with a developer to talk through my problems and goals. A day later, he got back to me with a list of possible solutions. After 9 months and 5 developers, Toptal got me my solution in a single week at a price I could afford.”
Kevin Ramirez
Co-Founder @ SixtyVocab.com
“Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.”
Dennis Baldwin
Chief Technologist and Co-Founder @ PriceBlink
“Dario was recently assigned to our company in order to help with PHP and JW Video player refinements. He listens extremely well and offers common sense suggestions that save both time and money. He speeds up the process by asking great questions, and he just delivered our first project on time. His redesigned player offers a very pleasing appearance and delivers functions that are both elegant and intuitive.”
Dennis B. Jacobs
President @ College TV Ticket
“My business relationship with Toptal has been nothing short of terrific. From reviewing my project with their team to choosing a highly-talented developer, and all the way through releasing our application, it has been an incredibly smooth and successful experience.”
Gary Craig
Senior Analyst @ NetApp
“Always incredibly responsive, prompt, and flexible, Anna has done an outstanding job -- her work is exactly what we needed. Toptal has been a great experience for us due to the ease of getting a project going with quality talent at a cost that fits our budget. The automated online system for managing everything during onboarding was also impressive.”
Cody Wilke
Product Manager @ Crucial Life Sciences Data Solutions
“Toptal has been an incredible source of amazing software engineering talent. The contractors who have worked with us have been top notch, spoke perfect English, and worked superbly with our team. We recommend Toptal without any reservations!”
Vineet Singal
Co-Founder @ CareMessage
“I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look. ”
Paul Fenley
Director @ K Dunn & Associates