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Hire the Top 3% of Freelance A/B Testing Developers

Hire vetted A/B testing developers, engineers, programmers, coders, architects, and consultants on demand. Leading companies choose A/B testing freelancers from Toptal for their most important development projects.

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Clients rate Toptal A/B testing developers 4.9 / 5.0 on average based on 997 reviews.
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Tory Borsboom-Hanson

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC-08:00
United States
Toptal Member Since October 31, 2022

Tory is a data scientist and forecasting specialist with extensive experience in experimental design, AB testing, and leadership roles. His stack of choice includes Python, SQL, Pandas, PySpark, Hadoop, MLFlow, XGBoost, and Scitkit-learn. Beyond data science and model development, he is an expert at data visualization and reporting, especially to non-technical audiences. He often remarks that "a poorly presented analysis can often be worse than no analysis at all."

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Zachary A. Goodman

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC-08:00
United States
Toptal Member Since August 25, 2022

Zack is an experienced Silicon Valley data science consultant with expertise in experiments, causal effect estimation, and cloud data tools. He holds a PhD in economics with a research focus on estimating causal effects using big data. Zack has over eight years of experience using Python, SQL, and other tools to answer questions using data. He enjoys helping his clients achieve their goals, whether building data pipelines, automated dashboards, or slide decks for company leadership.

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Draco Li

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC-05:00
Canada
Toptal Member Since April 14, 2020

Draco is a seasoned lead engineer with over 12 years of extensive full-stack experience in various industries, including online retail, web3, and AI insurance. As a founding engineer at Dots, Draco spearheaded the launch of highly acclaimed iOS apps, TwoDots (50+ million downloads) and Dots & Co (1.5+ million downloads within two days). He also served as the engineering lead at Loose Button, where he launched an online advertising network that grew to over $1 million in sales in three months.

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Daniel Schaefer

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC-05:00
United States
Toptal Member Since November 5, 2022

Daniel is a software engineer with 17+ years of experience specializing in implementing DevOps. As part of an engineering team, he enjoys developing applications while owning code, tests, builds, deployments, infrastructure, and monitoring. Daniel believes in scalable, reliable, testable, and maintainable code.

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Shabeer S Hussain

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+00:00
United Kingdom
Toptal Member Since August 22, 2023

Shabeer is a senior iOS engineer with 12+ years of experience and is fluent in Swift, Objective-C, SwiftUI, and UIKit apps. He has extensive experience in iOS app development, release management, and maintenance of CI/CD pipelines from working in both large corporate companies and small-scale startups. Shabeer is interested in back-end development using Swift Vapor and event-driven serverless architecture using Firebase Firestore and Firebase functions to complement his mobile expertise.

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Vlad Zotov

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+01:00
Spain
Toptal Member Since November 18, 2020

Vlad is a passionate learner and systems thinker. Curiosity is his main driver, propelling him to explore diverse fields and new concepts. Vlad believes in the power of A/B testing and data-driven decision-making. Over the past 10 years, he's tackled various challenges ranging from front-end and distributed systems to data analysis. Vlad takes ownership of the issue and produces quality solutions. He enjoys learning and can quickly pick up languages and frameworks, and he enjoys helping others.

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Artem Sukiasyan

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+04:00
Armenia
Toptal Member Since April 27, 2020

Artem is a senior software engineer with 20+ years of career history focused on supporting different software systems. He has experience-backed expertise in back-end system creation with different technology stecks as well as strong skills in analysis, design, development, testing, and implementation of various applications. Artem is a supportive and enthusiastic team player who never givies up and prides himself on his efficient problem-solving abilities.

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Nurzhan Dyussenaliyev

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+05:00
Kazakhstan
Toptal Member Since February 22, 2021

Nurzhan has worked for Google in London as an Android software engineer since mid-2016. Before joining Google, while at university, he created his own Android app (kuran.kz), which has over a million downloads and 4.9 stars! He also completed internships at Facebook and imo.im, a video messaging startup, both in Silicon Valley. Having participated and won many sport programming competitions in high school and university, Nurzhan programs quickly and in an optimized way.

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Anthony Khong

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+07:00
Indonesia
Toptal Member Since December 15, 2020

Anthony is an experienced data scientist and developer with a demonstrated history of working in research, algorithmic trading, and technology consultancy. He is skilled in software development, statistical analysis, and machine learning. Anthony is a strong entrepreneurship professional with an MSc in applied statistics from the University of Oxford and an MPhil in economics research from the University of Cambridge.

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Mikhail Rakhmalevich

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+07:00
Thailand
Toptal Member Since January 22, 2015

With 15 years of experience in software engineering, Mikhail has honed his skills in creating robust, user-friendly mobile and web applications. His extensive expertise spans various domains, including fintech, well-being, and social networking. Mikhail's career progression has seen him evolve from a passionate developer to a proficient product manager and project leader, known for his strategic vision and ability to lead cross-functional teams to success.

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Julius Arden

Freelance A/B Testing Developer
Verified Expert in Engineering
UTC+10:00
Australia
Toptal Member Since July 23, 2021

Julius is a full-stack software engineer and engineering manager with 10+ years of professional experience. He has worked in multiple sectors, including marketplace, edutech, and fintech, and in companies ranging from early-stage startups to multinationals. Julius leverages his varied experience to remain flexible and pragmatic while delivering and maintaining clean code. He had experience working in microservices utilizing Kubernetes in GCP.

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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 A/B Testing 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 A/B testing developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new A/B testing developer 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 A/B Testing Developers

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

  • How quickly can you hire with Toptal?

    Typically, you can hire A/B testing 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 A/B testing 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 A/B testing 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 A/B testing developers for your project.

  • At Toptal, we thoroughly screen our A/B testing 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 A/B testing developers with Toptal, you’ll always work with world-class, custom-matched A/B testing developers ready to help you achieve your goals.

  • You can hire A/B testing 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 A/B testing developers can fully integrate into your existing team for a seamless working experience.

  • We make sure that each engagement between you and your A/B testing 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 A/B Testing Developers Are in High Demand.

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