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

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

John-Paul May

Freelance API Developer at Toptal since October 24, 2016
John-Paul is an extremely experienced developer in OCC 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

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

Michael Herold

Freelance API Developer at Toptal since February 2, 2016
Mike is a talented software engineer with an expertise in web applications. He is fluent in Javascript, Ruby, and Python, and takes pride in writing clean, maintainable code. Mike is based in San Francisco with 4 years of experience in the start-up scene. Mike has focused on both client and server architecture. His strengths include relational and non-relational databases and REST APIs. 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

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

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

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

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

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
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Testimonials
“We were extremely impressed with both Toptal and our developer, Bojan. They were professional and flexible with our schedule. On multiple occasions, we needed to alter our timeline and they never hesitated to accommodate us. Bojan was communicative and delivered what we asked for on-time and exactly to spec. I know that should we need additional work, we will surely be looking to hire Bojan and Toptal again. ”
Stephen Vasallo
Co-founder @ Bubble
“Toptal has helped my business tremendously by finding, vetting, and recruiting the talent I need, at the right time. I’d definitely recommend it to others.”
Xavier Xicay
CEO & Creative Director @ Tuatara Corp
“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
“Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!”
George Cheng
CEO @ Bulavard, Inc.
“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
“Toptal provides a great service: Within a week of posting my job, I was matched with my developer and ended up completing the entire project with him. I'll continue to use Toptal in the future for any new development work I may need.”
Mike Jones
CEO @ DigitalDripped
“I've been very happy with Juraj. He is efficient, writes great code, and is an extremely nice guy to work with. Most importantly, he is self-motivated -- in his initial pass at the code base he has contributed several optimizations and stability improvements.”
Matt Cotton
Dev Team Lead @ eFolder
“I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.”
Pietro Casoar
CEO @ Ronin Play Pty Ltd
“As a growing startup, finding top-notch engineering talent at affordable rates is one of the biggest challenges. After being frustrated with unreliable local contractors in New York, we turned to Toptal. We worked closely with Michal in Poland for 5 months and were thrilled with the results. Michal was an outstanding engineer who communicated flawlessly and took control of our project in ways that far exceeded my expectations. I give Michal and Toptal my highest endorsement and will continue to use and recommend them to anyone looking for software engineering talent.”
David Baker
Founder @ Spins.FM
“With the pressure on and millions watching the Cleveland Cavaliers during the NBA Playoffs, Toptal delivered the talent and expertise needed to launch a brand new fan engagement platform.”
Conor Kenney
Director of Professional Services @ Cleveland Cavaliers
“Andrea is doing an amazing job. I don't think we could have gotten a better person. He is fun to work with, he thinks out of the box, and he is extremely knowledgeable in what he is going. He not only does an excellent job, he also helps our company to differentiate our business model further (e.g. making our app offline-capable). I would recommend Andrea as well as Toptal any time to any friend.”
Pascal Girardat
Co-Founder / CEO @ Lifestage Solutions AG
“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
“One of our most time consuming problems is finding qualified staff. We need to find the correct platform to advertise on, create a proper ad, filter through tons of applications, interview and test the applicants' capabilities, and finally take a risk by hiring. This was the old way of doing things. The new way: describe the job position to our Toptal account manager, interview a few qualified applicants, and hire with a risk-free trial -- much faster, a lot easier, and with incredible results.”
Catalin S. Balaci
Owner @ EvoBits Information Technology SRL
“I couldn’t have been more pleased with Toptal. They are professional, quick, well priced, and fun. I will be using them again for my next project, and the next, and the next, and the next ... ”
Mac Smith
President @ New Texas Investments
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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