Hire the Top 3% of Freelance ONNX Developers

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

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance ONNX Developers and Engineers

Benjamin Breton

Freelance ONNX Developer
United StatesToptal 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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Jesús Copado

Freelance ONNX Developer
SpainToptal Member Since February 23, 2024

Jesús is a software engineer with over seven years of experience in deep learning, computer vision, data science, and multiple technologies, including Python. With a bachelor's degree in software engineering and a double master's degree in autonomous systems, he combines academic excellence with diverse industry experience. Fluent in multiple languages and having lived in four countries, Jesús brings a unique global and dynamic perspective to any project presenting complex challenges.

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Hovnatan Karapetyan

Freelance ONNX Developer
ArmeniaToptal Member Since July 4, 2022

Hovnatan is a computer vision engineer with a PhD in applied physics from Stanford. He is passionate about computer vision and image processing. Hovnatan has worked on a comprehensive variety of projects in the field. He is also a well-rounded software engineer, having integrated his solutions both in cloud-based and desktop (Windows, MacOS) environments.

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Grigor Nalbandyan

Freelance ONNX Developer
GermanyToptal Member Since July 22, 2022

Grigor is a data scientist with over three years of industry experience in applied machine learning. He focuses on deep learning, computer vision, and natural language processing and has co-authored a paper that was accepted at the Institute of Electrical and Electronics Engineers (IEEE). Grigor is also completing his master's in data engineering and analytics at the Technical University of Munich in Germany.

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Andrei Apostol

Freelance ONNX Developer
RomaniaToptal Member Since September 1, 2022

Andrei studied computer science in his hometown in Romania and completed his master's degree in AI at the University of Amsterdam. He has accumulated practical experience in AI over years of training, developing data processing pipelines, and deployment. He is an engineer always looking forward to new challenges. Andrei also has academic experience through publishing two papers on neural pruning and quantization, which were well received by the academic community.

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Stefan Mićić

Freelance ONNX Developer
SerbiaToptal Member Since July 20, 2022

Stefan is an experienced machine learning and machine learning operations (MLOps) engineer with hands-on experience in big data systems. His demi-decade of expertise is supplemented by a master's degree in artificial intelligence. Stefan has worked on problems such as object detection, classification, sentiment analysis, named-entity recognition (NER), and recommendation systems. He is always looking forward to being involved in end-to-end machine learning projects.

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Omar Sayed Mostafa

Freelance ONNX Developer
EgyptToptal Member Since August 7, 2023

Omar is a seasoned senior AI engineer with 6+ years of experience in the AI industry, specializing in computer vision, natural language processing, and audio processing. Omar's journey into the world of AI has been fascinating, as he has actively contributed to multiple real-life AI products from inception to deployment. With a combination of hands-on experience and advanced academic training, Omar is well-equipped to tackle any AI challenge.

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Abdellatif Dalab

Freelance ONNX Developer
CanadaToptal Member Since December 8, 2021

Abdellatif is a machine learning engineer and data scientist passionate about mathematics and applied research. He currently leads the ML engineering initiative at Repustate, where he develops and deploys custom, multilingual deep learning models for various natural language applications. Abdellatif also designs and engineers deep learning API servers to support the company's core natural language services.

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Michel Meneses

Freelance ONNX Developer
BrazilToptal Member Since August 8, 2023

Michel is a senior AI/ML engineer with comprehensive experience leveraging the latest AI research into development across multiple domains. With a solid technical background in ML and software engineering, Michel has assisted enterprises in successfully prototyping, benchmarking, and developing cutting-edge AI systems used by millions worldwide while authoring innovative scientific papers and patents.

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Tornike Onoprishvili

Freelance ONNX Developer
GeorgiaToptal Member Since October 1, 2021

Tornike is a data scientist with a solid academic and mathematical background. He specializes in Python TensorFlow 2.0, currently learning reinforcement learning, and is planning to contribute to this field in the near future. Tornike is also regularly busy mentoring aspiring data scientists on their path to greatness.

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Dmitrii Murygin

Freelance ONNX Developer
KyrgyzstanToptal Member Since December 7, 2021

Dmitrii is an experienced C++ developer and deep learning engineer. As a middle C++ developer he has five years of experience in research computation related projects. As a deep learning engineer he has two years of solid experience in NLP direction connected to transformer and BERT based models.

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Discover More ONNX Developers in the Toptal Network

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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
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


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


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


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


How to Hire ONNX Developers Through Toptal


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.

Work With Hand-Selected Talent

Within days, we'll introduce you to the right ONNX developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

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


  • How are Toptal ONNX developers different?

    At Toptal, we thoroughly screen our ONNX 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 ONNX developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with an ONNX developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal ONNX developers?

    We make sure that each engagement between you and your ONNX 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 ONNX Developers Are in High Demand.

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