Hire the Top 3% of Freelance OpenAI GPT-4 API Developers

Toptal is a marketplace for dedicated OpenAI GPT-4 API developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal OpenAI GPT-4 API freelancers for their mission-critical OpenAI GPT-4 API development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance OpenAI GPT-4 API Developers and Engineers

Linton Ye

Freelance OpenAI GPT-4 API Developer

CanadaToptal Member Since May 14, 2021

Linton is a full-stack developer and lifelong learner. He's passionate about sharing his knowledge and has been teaching React since 2017. Before switching to web development, Linton built a tool used by thousands of Android developers at Samsung, American Express, Airbnb, PayPal, and Tinder. Linton also built one of the first movie ticketing apps on Android, which has been downloaded over 1.3 million times, featured in the New York Times, and selected by LG for preinstallation on phones

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Erick Katzenstein

Freelance OpenAI GPT-4 API Developer

United StatesToptal Member Since May 24, 2017

Erick is a full-stack engineer with exceptional velocity and an obsession for UX design. With 15 years of experience in engineering and design, his main areas of expertise include product development, 3D interaction, data visualization, and conversational AI (ChatGPT and Llama2). Erick can build an entire product from scratch and looks forward to the next exciting project.

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Carina van der Zee

Freelance OpenAI GPT-4 API Developer

United KingdomToptal Member Since July 29, 2022

A seasoned AI/ML and statistics expert, Carina leverages her comprehensive skill set to deliver impactful solutions as a consultant, freelance, and CTO. Her impressive trajectory spans from top Wall Street banks to technical leadership in the tech sector, backed by robust academic credentials in mathematics, engineering, and business. Passionate about solving analytics, automation, and optimization challenges, Carina propels businesses into the future with her data-driven approach.

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Albert Gao

Freelance OpenAI GPT-4 API Developer

United KingdomToptal Member Since July 19, 2021

Albert has been working as an IT professional for over a decade. He specializes in full-stack JavaScript from development to deployment with the AWS tech stack and has delivered multiple products end-to-end. He excels at delivering large-scale applications and has a demonstrated history of solving complex problems. A good team player who's led teams of various sizes, Albert continuously strives to pick up the latest technologies to enable enterprises to reach the next level.

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Fuad Issa

Freelance OpenAI GPT-4 API Developer

United KingdomToptal Member Since July 22, 2022

Fuad excels in building machine learning services from prototype to production, leveraging his diverse ML experience to craft rapid prototypes and discover creative uses for models across many domains. With a solid foundation in maths and programming, he stays at the forefront of the latest research, continually enhancing the solutions he provides to clients. Fuad's passion for developing cutting-edge technology solutions makes him a valuable asset to any team seeking to harness the power of ML.

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Ilya Prokin

Freelance OpenAI GPT-4 API Developer

FranceToptal Member Since September 7, 2022

Ilya is a researcher (Ph.D.), data scientist, CTO, and entrepreneur with expertise in applied data science and machine learning in manufacturing, finance, and biotech. He has published five scientific papers, improved stock market volatility prediction, developed MVPs, pitched startups, and built a strong data science community to discuss state-of-the-art DS topics. Ilya enjoys improving businesses with data, developing innovative ways to apply data science, and geeking out about optimization.

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Nikhil Bhaskar

Freelance OpenAI GPT-4 API Developer

South KoreaToptal Member Since October 11, 2022

Nikhil has built highly performant web apps and intuitive digital products for billion-dollar American corporations with great attention to product and UX. He has also mastered the art of product and is comfortable leading teams and pushing code from anywhere, anytime, being a digital nomad since 2018. Nikhil has established himself as the go-to developer in many of his previous roles, and he is a builder at heart.

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Iván Sánchez

Freelance OpenAI GPT-4 API Developer

SpainToptal Member Since May 31, 2022

Iván is a data scientist with experience in Python, TensorFlow, exploratory data analysis, natural language processing, computer vision, and Google Cloud Platform. He worked on many projects building the machine learning lifecycle that powered artificial intelligence, processing digital documents, performing data analytics, and normalizing databases. Iván is passionate about applying the state-of-the-art solutions that constantly arise in the fast-growing field of AI.

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Amr Elsehemy

Freelance OpenAI GPT-4 API Developer

United Arab EmiratesToptal Member Since March 9, 2021

Amr's passion is to build new experiences for enterprises, and augmenting current experiences with Generative AI is his expertise. His experience includes artificial intelligence, machine learning, employee engagement, system architecture design, development, management, and training. With over 18 years of experience, Amr has an in-depth understanding of Microsoft Azure, AWS, GCP, and widely used programming languages. Amr holds an MBA and an M.Sc. in computer science.

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Miran Brajsa

Freelance OpenAI GPT-4 API Developer

CroatiaToptal Member Since January 8, 2016

In his 30 years of programming experience (15 professionally), Miran has involved himself in everything from N-tier system builds, PKI smart cards for authentication and data storage, and iOS games and applications to leadership positions on development teams for large-scale projects. Miran aims to keep code execution speed, solid yet flexible code design, and an attractive and unique UI in balance.

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Marko Bender

Freelance OpenAI GPT-4 API Developer

SerbiaToptal Member Since January 8, 2020

Besides being a team player who excels in end-to-end projects, Marko is an engineer who’s passionate about new technologies, data, and the cloud. At Microsoft, he worked with the SQL Server and Azure SQL Database Managed Instance. Recently, Marko has gotten into freelancing and signed onto a project where he developed a real estate search engine.

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Testimonials

Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.

Brantley Pace, CEO & Co-Founder

Tripcents

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

The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller, CEO

Radeeus

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

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee , Principal

Site Specific Software Solutions

We used Toptal to hire a developer with extensive Amazon Web Services experience. We interviewed four candidates, one of which turned out to be a great fit for our requirements. The process was quick and effective.

Abner Guzmán Rivera, CTO and Chief Scientist

Photo Kharma

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

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

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

Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.

Jeremy Wessels, CEO

Kognosi

We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.

Ryan Morrissey, CTO

Applied Business Technologies, LLC

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

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.

As a Toptal qualified front-end developer, I also run my own consulting practice. When clients come to me for help filling key roles on their team, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal is the best value for money I've found in nearly half a decade of professional online work.

Ethan Brooks, CTO

Langlotz Patent & Trademark Works, Inc.

In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered!

Lara Aldag, CEO

Higgle

Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver. I would definitely recommend their services to anyone looking for highly-skilled developers.

Michael Gluckman, Data Manager

Mxit

Toptal’s ability to rapidly match our project with the best developers was just superb. The developers have become part of our team, and I’m amazed at the level of professional commitment each of them has demonstrated. For those looking to work remotely with the best engineers, look no further than Toptal.

Laurent Alis, Founder

Livepress

Toptal makes finding qualified engineers a breeze. We needed an experienced ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. After making our selection, the engineer was online immediately and hit the ground running. It was so much faster and easier than having to discover and vet candidates ourselves.

Jeff Kelly, Co-Founder

Concerted Solutions

We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.

Franco Arda, Co-Founder

WhatAdsWork.com

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

How to Hire OpenAI GPT-4 API Developers through Toptal

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right OpenAI GPT-4 API developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new OpenAI GPT-4 API developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

FAQs

  • How are Toptal OpenAI GPT-4 API developers different?

    At Toptal, we thoroughly screen our OpenAI GPT-4 API developers to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire OpenAI GPT-4 API developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with an OpenAI GPT-4 API developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal OpenAI GPT-4 API developers?

    We make sure that each engagement between you and your OpenAI GPT-4 API developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top OpenAI GPT-4 API Developers are in High Demand.

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