Hire the Top 3% of Freelance LLM Engineers

Toptal is a marketplace for dedicated LLM engineers. Top companies and startups choose Toptal Large Language Models (LLMs) freelancers for their mission-critical Large Language Models (LLMs) development projects.

No-Risk Trial, Pay Only If Satisfied.

Clients rate Toptal LLM engineers 4.9 / 5 on average based on 1,521 reviews.
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Find and hire Top LLM Engineers worldwide. Simply click on your preferred time zone on the map.

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Hire Freelance LLM Engineers

Dongxu Huang

Freelance LLM Engineer
UTC-08:00
Canada
Toptal Member Since April 29, 2024

Dongxu is a versatile engineer with expertise in back-end and front-end development, boasting four years of experience working with Python, JavaScript, Node.js, React, HTML, and CSS. Proficient in AWS cloud architecture, he has a master's degree in computer science, specializing in deep learning and large language models (LLMs), and a master's in computational materials science. Passionate about machine learning and scientific computing, Dongxu is eager to explore opportunities in these fields.

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Wouter Steenbergen

Freelance LLM Engineer
UTC-08:00
United States
Toptal Member Since February 10, 2014

Wouter is a highly motivated, versatile, and skilled software engineer with demonstrated software design and delivery expertise. He focuses on integrating machine learning, mobile apps, performance, and cloud services. He has the ability to identify and drive strategic programs from inception to launch and thrives in collaborative, team-oriented, and ambiguous environments. Wouter has excellent interpersonal skills and is a passionate, creative, and dedicated professional.

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Reza Fazeli

Freelance LLM Engineer
UTC-05:00
Canada
Toptal Member Since October 19, 2023

Reza is a highly skilled machine learning engineer with 11 years of experience. Currently working at IBM, he has developed and deployed cutting-edge machine learning algorithms to enhance virtual assistant products. His research at the University of Toronto focused on numerical modeling techniques for solving multiphase flow problems. With a strong background as a machine learning engineer and data scientist, Reza's expertise lies in natural language processing and computer vision.

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Juan Luis Ruiz - Tagle

Freelance LLM Engineer
UTC+01:00
Spain
Toptal Member Since September 29, 2022

Juan Luis is a data scientist specializing in large language models (LLMs) and machine learning (ML). He has extensive experience in healthcare, finance, spatial analytics, and advertising technology. He combines his deep knowledge of machine learning with software engineering best practices to build robust and reliable ML solutions. Juan Luis has strong analytical skills and approaches problems from a business perspective, always prioritizing the client’s needs and ensuring effective outcomes.

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Nenad Tičarić

Freelance LLM Engineer
UTC+01:00
Croatia
Toptal Member Since January 25, 2014

With 15 years in tech, Nenad transitioned from full-stack development to artificial intelligence (AI) expertise. Skilled in front-end, back-end, and open-source technologies, he excels in complex challenges. His deep experience in information retrieval complements his proficiency in artificial intelligence and machine learning, leading to innovative, efficient solutions.

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Vaibhav Patel

Freelance LLM Engineer
UTC+04:00
United Arab Emirates
Toptal Member Since January 6, 2021

Vaibhav is a skilled back-end engineer who specializes in building and fine-tuning large language models (LLMs) with Python. He delivers scalable AI solutions by leveraging advanced frameworks like LangChain and retrieval-augmented generation (RAG). With a strong foundation in LLM integration and optimization, he creates robust AI systems designed for high-performance applications.

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Sheng Han Lim

Freelance LLM Engineer
UTC+08:00
Malaysia
Toptal Member Since July 29, 2022

Sheng Han is a senior machine learning (ML) engineer with 10 years of experience in the research, development, and application of various ML, AI, and generative AI solutions. He has turned big data into valuable actions and has a demonstrated history of driving business efficiencies and cost reductions. Sheng is proficient in generative AI, prompt engineering, computer vision, natural language processing (NLP), anomaly detection, and prediction tasks.

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Uri Levitsky

Freelance LLM Engineer
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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Pawel Kaplanski

Freelance LLM Engineer
UTC+10:00
Australia
Toptal Member Since April 3, 2019

Pawel is an experienced data-scientists and machine learning professional. He has worked for Fortune 100 companies, and he has an academic background in the field. Before moving to data science, he was a former lead architect in Samsung R&D Center. Pawel holds a Ph.D. in knowledge representation and reasoning as well as a master's degree and a bachelor of science degree in computer science.

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Max Ryan Synnott

Freelance LLM Engineer
UTC+12:00
New Zealand
Toptal Member Since January 28, 2022

Max is a full-stack software engineer specializing in TypeScript, Node.js, React, and AWS. He has developed core back-end services and front-end components of the Klarna app, which has millions of active users worldwide and has consistently ranked number one on the App Store in the shopping category. Max has professional experience with many tools and technologies and has worked with large and small teams. He looks for opportunities to build great solutions for unique and interesting problems.

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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 LLM Engineers 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 LLM engineer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new LLM engineer 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 a LLM engineer 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 LLM engineer, 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 LLM engineer, 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 LLM engineers for your project.

  • At Toptal, we thoroughly screen our LLM engineers 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 with Toptal, you’ll always work with world-class, custom-matched LLM engineers ready to help you achieve your goals.

  • You can hire LLM engineers 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 LLM engineers can fully integrate into your existing team for a seamless working experience.

  • We make sure that each engagement between you and your LLM engineer 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 LLM Engineers Are in High Demand.

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