Hire the Top 3% of Freelance GPT-4 Developers

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

No-Risk Trial, Pay Only If Satisfied.

Clients rate Toptal GPT-4 developers 4.9 / 5 on average based on 1,643 reviews.
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Eric Hare

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC-08:00
United States
Toptal Member Since July 5, 2017

Eric is the chief data scientist at the Omni Analytics Group. He has a Ph.D. in statistics and computer science from Iowa State University. Eric is the most proficient working in R, RStudio, and associated R packages, including Shiny, R Markdown, and ggplot2. He is very comfortable with Python and the associated data manipulation and deep learning packages, including OpenAI and other LLMs.

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Brian Shaffer

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC-07:00
United States
Toptal Member Since June 12, 2024

Brian is a full-stack developer with 20 years of experience developing websites, native apps, browser extensions, and integrations into dozens of APIs. His early career focused on PHP and MySQL applications, but he has transitioned more toward JavaScript and PostgreSQL over the years. While Brian specializes in full stack, he has a sweet spot for browser automation and playing live with the Document Object Model (DOM).

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Ben Mishkin

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC-06:00
United States
Toptal Member Since March 10, 2017

Ben is a seasoned engineering leader with 20 years of experience in cloud infrastructure, operations, DevOps, and SecOps. He specializes in ML/AI and LLMs and holds certifications in AWS and GCP. He has led teams across various industries, including healthcare, social networks, eCommerce, and video games. With computer science, machine learning, and finance expertise, Ben has HIPAA, PCI, and SOC2 compliance experience. He excels in writing code, buildouts, operations, and migrations.

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Pedro Henrique Rocha Moy

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC-05:00
United States
Toptal Member Since April 25, 2019

Pedro is a business-oriented seasoned data scientist and data engineer with experience building and deploying production distributed data pipelines and machine learning models at scale, covering the entirety of the data lifecycle from design, construction, optimization, deployment, and monitoring of data architectures and machine learning models. Pedro's focus is to deliver solutions that are robust to changes in environment and data and flexible to address changes in business requirements.

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Denis Volk

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+01:00
Switzerland
Toptal Member Since March 18, 2020

Denis is a senior full-stack AI engineer and data scientist, highly skilled in modern generative tech (GPT-4, Midjourney, and more), machine learning, ETL pipelines, data analysis, mathematical modeling, big data, and MLOps. He has a PhD in mathematics, and his data science expertise includes probabilistic risk modeling, revenue forecasting, geospatial data analysis, handwriting recognition, anomaly detection in time series, data engineering, and team leading.

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Charles Camp

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+01:00
France
Toptal Member Since August 24, 2020

Charles is a senior AI developer with nine years of experience using AI technology, including ChatGPT and DeepSeek, and deploying machine learning models, particularly LLM applications over the last two years. He has experience working with large corporations, startups, and laboratories. He is also an AWS Certified Solution Architect and can deploy models creating APIs or containerized applications.

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Yashveer Rana

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+05:00
India
Toptal Member Since March 26, 2018

Yashveer boasts over a decade of experience crafting and optimizing software for dynamic startups and large established enterprises, with a sharp focus on scalability. As a co-founder and CTO of an AI-driven fintech company, he designed a product that supports 400,000 users monthly. Skilled in Java and Node.js, Yashveer relies on these tools for development, while music fuels his energy during intense coding sessions.

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Alex Rossovsky

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+07:00
Thailand
Toptal Member Since December 1, 2021

Alex is an accomplished full-stack developer with a distinctive edge in computer security and reverse engineering. His expertise spans developing full-stack web applications and mobile applications for Android. Alex's strong problem-solving skills and diverse technical skillset ensure he delivers optimal solutions for even the most intricate challenges.

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Tai Poh Nean

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+08:00
Malaysia
Toptal Member Since March 20, 2021

Tai is a full-stack web developer with 13+ years of experience managing software teams and building enterprise web applications. As the CTO of a prop-tech startup, he's led a team of engineers to develop PropSage—a real-estate agency back-office platform used by over 100 real estate agencies in Singapore, including ERA and Century 21. Tai's greatest strength is his ability to deeply understand the client's business requirements and deliver scalable, user-friendly solutions.

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Kenn Ejima

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+09:00
Japan
Toptal Member Since July 31, 2018

Kenn is an experienced full-stack developer who has built many web apps, API platforms, and native mobile apps from scratch over the past two decades. His core skills are versatile—data modeling, API design, maintainable code, beautiful UI/UX, TCP/IP networking, and optimizing DB performance. Kenn wrote one of the most referenced articles about the technical comparison between MySQL 8 and PostgreSQL 10. https://hackernoon.com/showdown-mysql-8-vs-postgresql-10-3fe23be5c19e

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Uri Levitsky

Freelance GPT-4 Developer
Verified Expert in Engineering
UTC+10:00
Australia
Toptal Member Since December 17, 2021

Uri has 18 years of experience in software development, including 7+ years in leadership roles, five in executive roles, and four years as the CTO of WIthYouWithMe, Deloitte Technology Fast 500 APAC winner (2019). The award recognizes the company as the fastest-growing startup with over 13,000% growth over three years.

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
Conor Kenney
Creating an app for the game
Leading a digital transformation
Elmar Platzer
Leading a digital transformation
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Drilling into real-time data creates an industry game changer
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

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

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

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

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

How to Hire GPT-4 Developers Through Toptal

1

Talk to One of Our Client Advisors

A Toptal client advisor 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 GPT-4 developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How quickly can you hire with Toptal?

    Typically, you can hire GPT-4 developers with Toptal in about 48 hours. For larger teams of talent or Managed Delivery, timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.

    Once you select your GPT-4 developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.

  • To hire the right GPT-4 developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect GPT-4 developers for your project.

  • At Toptal, we thoroughly screen our GPT-4 developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.

    In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.

    When you hire GPT-4 developers with Toptal, you’ll always work with world-class, custom-matched GPT-4 developers ready to help you achieve your goals.

  • You can hire GPT-4 developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire an expert for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our GPT-4 developers can fully integrate into your existing team for a seamless working experience.

  • We make sure that each engagement between you and your GPT-4 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 Talent Only

    Trusted Talent Only

    All of our talent are seasoned professionals 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 GPT-4 Developers Are in High Demand.

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