Hire the best API developers near St. Louis.

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

Ryan Felton

Freelance API Developer at Toptal since October 7, 2015
Ryan is an entrepreneur at heart and a stellar web app developer by trade. He prides himself on his efficiency in communication and his efficacy in development, and he is sure to be an excellent addition to--or leader for--any team. Click to continue

John-Paul May

Freelance API Developer at Toptal since October 24, 2016
John-Paul is an extremely experienced developer in native and cloud engineering, as well as Unity, VR, and hardware-software devices. He has a long roster of multi-million dollar product successes for clients. He combines a savvy marketing outlook with the more difficult technical engineering. A specialist in the high-value "attractions" industry. He has led teams of all types and budgets, creating many huge successes for clients. Click to continue

Alex Wong

Freelance API Developer at Toptal since January 5, 2016
Alex is an independent software consultant with more than 15 years of experience. He has helped companies of all sizes, from nascent startups to Fortune 500 corporations, successfully deliver software projects by providing expertise in development, architecture, and management. He has built solutions in everything from large-scale distributed systems to rich internet front-ends for clients such as Sun Microsystems, Zendesk, and GE Capital. Click to continue

Anthony Garvan

Freelance API Developer at Toptal since November 12, 2016
Anthony is a top-tier full stack web developer (Python/JavaScript) and data scientist (SQL/Python) with 10 years of experience building software for everything from to playing poker to predicting hurricanes. His working style is fun, communicative, consistent, and collaborative. Click to continue

Colin Young

Freelance API Developer at Toptal since August 19, 2015
Colin is a senior engineer with 5+ years' experience leading products and managing small entrepreneurial teams. He specializes in robust, performant API back-ends and the clients and applications they serve, and his core skills are Ruby, Swift/Obj-C, JS, and Linux Server. He's trained in UX and design, and has proven ability to learn new tech quickly. He is skilled at React, and gaining ground with Android products. Click to continue

Matthew Keas

Freelance API Developer at Toptal since July 13, 2013
Matthew is an enthusiastic world traveler and follower of scientific computing, compilers, web development, and computer security. He has learned from universities and government organizations and worked for individual clients, startups, and more. He lives to solve problems, and he contributes actively to open source and community projects. Click to continue

Harrison Strowd

Freelance API Developer at Toptal since November 4, 2016
Harrison has extensive experience building and maintaining web server applications of all shapes and sizes. The majority of his experience is in Ruby on Rails, but he also has experience with many other languages as well. Harrison has a strong understanding of the entire stack of server-side technologies. Click to continue

Charles Naccio

Freelance API Developer at Toptal since November 10, 2016
Charles is a motivated senior Salesforce consultant and developer with over six years of experience, focused on finding new and creative ways of leveraging the Salesforce.com platform to address the ever-changing needs of business organizations. To top things off, he has a keen understanding of business and business concepts, which enables him to effectively communicate with executives and key business stakeholders. Click to continue

Oleg Rikkers

Freelance API Developer at Toptal since July 19, 2015
Oleg has been working with the Salesforce platform since late 2007. During that time, he gained great expertise building enterprise-grade applications on it. His knowledge of Force.com tools, frameworks, and features includes Apex, Visualforce, Lightning/Aura, customer/partner communities, ProcessBuilder, Salesforce 1, and more. He is well versed in Scrum/Agile methodology and change management. Click to continue

Sean Desmond

Freelance API Developer at Toptal 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
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Toptal in the press
“Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.”
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“Toptal allows corporations to quickly assemble teams that have the right skills for specific projects.”
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Testimonials
“It has been wonderful to work with Fabian for the past two years. He is an expert in JavaScript development and has built our embeddable widget and video player. He is a quick study and is able to learn how to integrate new technologies, which is so critical for a startup. He even took the extra effort to teach others on the team. He is super responsive and often went above and beyond to help us meet deadlines (including working on weekends). Thank you Fabian. Thank you Toptal for making it so easy to find and work with amazing talent.”
Natasha Mohanty
CTO @ FEM Inc
“I'm incredibly impressed with the caliber of the Toptal developers I have worked with - they have proven themselves to be both dedicated and highly talented. We will most definitely continue to work with Toptal. ”
Savannah de Savary
Founder @ Industry Hub
“Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.”
Jason Kulik
Co-Founder @ ProHatch
“FundedByMe needed to quickly scale our development team to create the equity crowdfunding leg of our operation. Working with a small budget, we couldn't spend time on vetting candidates, so we turned to Toptal. They identified a stellar developer that truly set the bar when it came to delivering product.”
Arno Smit
CTO @ FundedByMe.com
“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 experience with Toptal has exceeded expectations. I needed to quickly find a front-end developer, and the first person they recommended was a perfect fit. A month later, I needed an iOS developer and they delivered again. I'm incredibly impressed with the quality of the people in Toptal's network and how quickly I was able to find a match for my needs.”
Bruno De Martino
Head of Product @ Token
“We needed a expert engineer who could start on our project immediately. Simanas exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient. Toptal is now the first place we look for expert-level help.”
Derek Minor
Senior VP of Web Development @ Networld Media Group
“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
“The Toptal process was very organized, personable, and professional. They get to know you and your project idea, and then quickly provide you with several of the world's best developers, who will work hard to achieve your vision. I found a great developer in only a few days and was able to turn my idea into a functional product.”
Ben Woratyla
CEO @ Book Swap
“What attracted us to Toptal was that Toptal is sourcing its talent from a global pool. The selection process is very stringent. They’re sourcing the talent not only based on capabilities -- sourcing the best 3% -- but also based on cultural fit, which is really important to us. We had an amazing experience working with Toptal. Toptal helped us achieve our goals by bringing us very high-quality resources, on very short notice.”
Elmar Platzer
Digital Transformation Leader, CSR Australia @ CSR Limited
“Toptal is amazing. Sourcing and interviewing candidates has always been incredibly cumbersome and difficult - and usually takes weeks or months to find the right people. With Toptal, we had 5 candidates in 2 days that were all perfect for the job. They made the scheduling of interviews easy and straightforward and we were working with a top-level developer within 2 weeks. I love you, Toptal.”
Ian Fosbery
CTO @ NMRKT
“Toptal offers a no-compromise solution to businesses undergoing rapid development and scale. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.”
Greg Kimball
Co-Founder @ nifti.com
“Toptal helped us when we had a hiring gap we needed to fill. The developer we received was excellent, with a great work ethic and fit in very well with the team. We are very happy with the service and would definitely consider using Toptal again in future should we need additional help. ”
David Gildeh
CEO @ Dataloop.io
“We've been incredibly pleased with our experience working with Toptal thus far. Their team worked quickly and efficiently to isolate the needs of our project, and they paired us with an appropriate developer within a couple days who we quickly contracted after a great interview. The work performed on our project was top-notch, and we can’t wait to make use of Toptal’s resources again.”
Ryan Staake
Owner @ Pomp&Clout
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My team is going to personally help you find the best candidate to join your team.

Alvaro Oliveira
VP of Talent Operations