Hire the Best OpenAI Developers Near Philadelphia

Toptal is a marketplace for top OpenAI developers. Top companies and startups in Philadelphia choose Toptal OpenAI freelancers for their mission-critical initiatives.

No-Risk Trial, Pay Only If Satisfied.

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Hire OpenAI developers near Philadelphia or in a similar time zone

Erick Katzenstein

Freelance OpenAI Developer
Verified Expert ​in Engineering
United States
Toptal 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 Llama 2). Erick can build an entire product from scratch and looks forward to the next exciting project.

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Matty Hogan

Freelance OpenAI Developer
Verified Expert ​in Engineering
United States
Toptal Member Since October 31, 2022

Matty is a serial entrepreneur, C-level officer of startups, and engineer who specializes in full-stack product development, particularly in Swift iOS. He's worked with numerous clients and startups to build their MVPs and accompanying back ends. Matty enjoys being part of a team and sharing a passion for challenging projects.

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Scott Fennell

Freelance OpenAI Developer
Verified Expert ​in Engineering
United States
Toptal Member Since February 20, 2017

Scott has written hundreds of custom web apps and WordPress plugins, with a current focus on Next.js and React. He specializes in 3rd-party API integrations, including Mailchimp, Cloudflare, and Shopify. He is experienced in leading technology teams, is a seasoned public speaker, and has presented at WordCamp Portland and the Google campus in Seattle. He has been published on A List Apart and CSS-Tricks many times. Scott is also a former infantry officer in the US Army.

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Benjamin Breton

Freelance OpenAI Developer
Verified Expert ​in Engineering
United States
Toptal Member Since November 7, 2022

Benjamin is passionate about data science and enjoys operating in different sectors. He aims to identify business needs, design an adapting solution, and create value from data. Benjamin has prolific professional experience and has collaborated with 30 startups and large companies during 45 missions.

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Delon Saks

Freelance OpenAI Developer
Verified Expert ​in Engineering
United States
Toptal Member Since March 6, 2025

Delon Saks is an AI leader with a proven track record in driving innovation in generative AI and machine learning. He has led high-impact projects across energy, heavy asset industries, eCommerce, and sports. Consulting for major organizations such as the LA Dodgers, Delon develops AI solutions that enhance decision-making. With experience in startups and enterprise AI, he leverages LLMs, RAG systems, and deep learning to deliver business value.

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Reza Fazeli

Freelance OpenAI Developer
Verified Expert ​in Engineering
Canada
Toptal Member Since October 19, 2023

Reza is a highly skilled machine learning engineer with 11 years of experience. He has developed and deployed cutting-edge machine learning algorithms to enhance products in the computer vision and natural language processing space. More recently, he has been focused on building products that leverage LLMs for various use cases and applications. With years of experience as an AI and ML engineer, Reza's expertise can help you build solutions in NLP and computer vision, among other domains.

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Jesús Martínez

Freelance OpenAI Developer
Verified Expert ​in Engineering
Colombia
Toptal Member Since November 11, 2019

Jesús excels at creating high-quality software solutions due to his unique background, which combines 10+ years of top-notch software engineering with 8+ years of AI, machine learning, and data science work in areas like natural language processing (NLP) and computer vision, empowering him to be a valuable asset at both ends of the spectrum. He's worked with a wide array of tools and technologies, including Java, Python, TensorFlow, PyTorch, LLMs, RAGs, SQL, NoSQL, and DeepSeek.

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Javier Garcia de Leaniz

Freelance OpenAI Developer
Verified Expert ​in Engineering
Spain
Toptal Member Since October 30, 2021

Javier has 10+ years of experience in AI for both startups and Fortune 500 companies in diverse industries. A former CTO, founder, and EY Engineering Director, he specializes in building LLM-powered systems, advanced NLP pipelines, and Python back ends. His projects include enterprise chatbots, automating reviews of 2+ million government aid applications during COVID-19 in Spain (reducing manual effort by 95%), web scraping 1.5 million products from 1,000+ public sites, and many more.

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Juliano Penna

Freelance OpenAI Developer
Verified Expert ​in Engineering
Brazil
Toptal Member Since May 29, 2019

Juliano is a software engineer with nine years of experience and a background in economics and business. He co-founded a startup that was accelerated in Brazil, worked with Volkswagen in China, was a contractor in San Francisco, and worked for Amazon in Paris. He provides IT consulting and software development services, specializing in improving internal processes and leveraging the latest technology trends. Juliano is a versatile freelancer with a global perspective.

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Jose Luis Moreira Arruda

Freelance OpenAI Developer
Verified Expert ​in Engineering
Brazil
Toptal Member Since April 19, 2023

Jose is a data scientist/ML engineer who's experienced across multiple sectors, including eCommerce, healthcare, and fintech. He is an expert in developing strategic projects and building AI/data products. He easily translates pain points and business goals into tailored AI products and designs. He deploys machine learning and deep learning models for time series, CV, and NLP and integrates them into company systems on the cloud. Jose has led data science projects while mentoring colleagues.

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Hameed Hasan

Freelance OpenAI Developer
Verified Expert ​in Engineering
United States
Toptal Member Since April 29, 2020

Hamid is a lead research scientist at UnitedHealth Group/Optum AI. He specializes in natural language processing (NLP) and natural language understanding (NLU) with a focus on healthcare applications. Hamid holds a Ph.D. in computer science from Georgia Tech and has extensive experience leveraging generative AI to advance healthcare solutions.

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A Hiring Guide

Guide to Hiring a Great OpenAI Developer

Skilled developers are needed across many industries to harness the power of OpenAI and deliver innovative solutions. But with this being such cutting-edge technology, how can you effectively vet qualified candidates who may not have domain-specific knowledge about OpenAI? This hiring guide covers what you need to know to find the best OpenAI developer for your project.

Read Hiring Guide
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
Creating an app for the game
Leading a digital transformation
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

How to Hire OpenAI Developers Near Philadelphia

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 developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

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 OpenAI Developers Are in High Demand.

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