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Hire the Top 3% of AI Testers

Hire vetted AI testers on demand. Leading companies choose AI/LLM Testing freelancers from Toptal for their most important development projects.

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Find and hire Top AI Testers worldwide. Simply click on your preferred time zone on the map.

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Christina Lin

AI Tester
UTC-08:00
Canada
Toptal Member Since March 6, 2018

Christina is a senior QA engineer with 10+ years of experience working at startups, large enterprises, and government organizations. She builds automation frameworks and integrates AI-driven testing solutions with Selenium, Appium, Cypress, RestAssured API, and GPT -3 Driver. She also brings strong manual testing expertise across web and mobile. She is a strong collaborator with a track record of improving release confidence and delivering high-quality results on remote teams.

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Eric Hare

AI Tester
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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Viktoriia Kholodenko

AI Tester
UTC-08:00
United States
Toptal Member Since June 10, 2024

Viktoriia is an ISTQB-certified QA engineer with 13+ years of experience testing APIs, web, and mobile apps at HomeAway, InVision, Tilly Therapy, and PGE. She gathers and documents business requirements, translating them into functional and technical specs. She has led QA teams of 10-15, owning scope, schedule, stakeholder management, test strategy, and SDLC integration. At PGE, Viktoriia is the main liaison between business and technical teams on a project without a dedicated PM.

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Carl Sauter

AI Tester
UTC-06:00
United States
Toptal Member Since August 26, 2026

Carl is a senior data quality engineer and back-end test automation specialist with experience in quality assurance and test automation for clients including Microsoft, AT&T, Bank of America, and Spectrum. He has experience in the software, aviation, financial, insurance, telecom, and public utilities industries. His primary focus is on writing code that scales and is easily maintainable in Python, SQL, and Java, among others.

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David Stone

AI Tester
UTC-05:00
United States
Toptal Member Since November 14, 2025

David is a senior QA engineer with 10+ years of experience in software testing and quality assurance. He specializes in API testing with Postman, automation using Playwright with .NET, and cross-functional collaboration in Agile environments. Skilled in Git, Azure DevOps, and CI/CD workflows, with hands-on development experience in Java, Python, PHP, .NET, and JavaScript, David is known for delivering reliable, scalable test solutions and bridging QA with development to drive product excellence.

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Subramanyam Reddy Kowluru

AI Tester
UTC+00:00
United Kingdom
Toptal Member Since June 8, 2026

Subramanyam is a software quality engineer with 18+ years of experience in delivering high-quality, reliable, and user-focused software across diverse domains. His expertise spans manual testing, automation exposure, API testing, database testing, and emerging AI testing practices, with a strong track record in Agile/Scrum environments. He brings deep proficiency in end-to-end testing, including functional, regression, integration, smoke, sanity, UAT, API, and database testing.

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Muhammad Aadil

AI Tester
UTC+00:00
Portugal
Toptal Member Since August 31, 2022

Aadil is a skilled software quality assurance engineer with 6+ years of experience testing web and mobile applications. His professional experience includes analyzing business requirements, developing test strategies, writing precise test scenarios and test cases, and executing QA tests to ensure high-quality applications. Aadil has a firm grip on identifying and retesting bugs to ensure they are resolved.

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Sidra Munaf

AI Tester
UTC+00:00
United Kingdom
Toptal Member Since September 4, 2026

Sidra is a QA engineer with 6+ years of experience ensuring quality across applications, combining manual and automation testing with Playwright and Postman/REST Assured. An AI adopter, she uses ClaudeCode to build and debug code, GitHub Copilot for pull request reviews, and MCP Server to let AI agents work against live project context with human review. Sidra is experienced in Agile, from test strategy to Jira defect management, and is comfortable working remotely with cross-functional teams.

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Sabarisha G M

AI Tester
UTC+05:00
India
Toptal Member Since July 27, 2026

Sabarisha is a senior full-stack QA engineer and AI testing specialist with 10+ years of experience designing automation frameworks for enterprise clients. He architected an E2E test automation framework that integrated 8 enterprise platforms and reduced E2E test execution time by 92%. Sabarisha's expertise spans Java, Playwright, REST Assured, and GCP for the retail and technology industries.

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Deep Halder

AI Tester
UTC+05:00
India
Toptal Member Since September 16, 2026

Deep is a senior SDET with 8 years building automation frameworks for global products, twice from zero. His work spans web automation with Playwright and Selenium, API automation with REST Assured, Postman and gRPC, SQL validation, performance testing with k6, and CI/CD in Jenkins, GitLab and GitHub Actions. He also leads LLM and agent evaluation, building the eval frameworks and regression gates that catch AI quality problems before release.

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Kirti Ranjan Satapathy

AI Tester
UTC+05:00
India
Toptal Member Since July 10, 2026

Kirti is a principal SDET and QA automation architect with 11+ years of experience helping organizations build scalable automation platforms and accelerate software delivery. He specializes in Playwright, TypeScript, AI-driven testing, and CI/CD. Kirti has designed enterprise automation frameworks that reduced regression effort by 70% and improved release efficiency by 35%, enabling faster, more reliable releases.

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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

How to Hire AI Testers 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 AI tester for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

EXCEPTIONAL TALENT

How We Source the Top 3% of AI Testers

Our name “Toptal” comes from Top Talent—meaning we constantly strive to find and work with the best from around the world. Our rigorous screening process identifies experts in their domains who have passion and drive.

Of the thousands of applications Toptal sees each month, typically fewer than 3% are accepted.

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FAQs

  • Typically, you can hire AI testers with Toptal in about 48 hours. For larger teams of talent or full end-to-end project 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 AI tester, 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 AI tester, 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 AI testers for your project.

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

  • You can hire AI testers on an hourly, part-time, or full-time basis. Toptal can also manage the project end-to-end based on your specific requirements as part of our Consulting and Services offerings. Whether you hire a AI tester 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 AI testers can fully integrate into your existing team for a seamless working experience.

  • We make sure that each engagement between you and your AI tester 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 AI tester who may be a better fit and with whom we will begin a second, no-risk trial.

Toptal Lets You Hire Fast,
With Unparalleled Success

  • Trusted Talent Only

    Trusted Talent Only

    Our talent network is composed of thoroughly vetted professionals who ramp up quickly, function as essential team members, and deliver results.

  • Precise Matching

    Precise Matching

    Our experienced talent matchers specialize in identifying talent that fits your needs. They work to understand your exact requirements and hand-select the best professionals for your project.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDAs, streamlining the hiring process so you can focus on innovation, not overhead.

  • No-risk Trial Period

    No-risk Trial Period

    We want to be sure your engagement is a total success, so we offer a no-risk trial period. Work with your new hire for up to two weeks and pay only if you’re satisfied.

  • Effortless Scaling

    Effortless Scaling

    We help you scale your team up or down as needed, with quick and efficient hiring in under 48 hours.

  • Flexible Engagements

    Flexible Engagements

    Our flexible engagement models allow you to choose the engagement type that suits your needs and adjust it anytime: hourly, part time, or full time.

Top AI Testers Are in High Demand.

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