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Toptal is a marketplace for dedicated data miners. Top companies and startups choose Toptal data mining freelancers for their mission-critical data mining development projects.

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Clients rate Toptal data miners 4.9 / 5.0 on average based on 663 reviews.
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Merve Acar

Freelance Data Miner
Verified Expert in Engineering
UTC-08:00
United States
Toptal Member Since March 11, 2019

Merve is an experienced machine learning engineer who takes pleasure in revealing the story of data and building predictive models. She has a proven track record of designing and implementing pipelines for extracting, validating, cleaning, transforming, and modeling data. Merve is passionate about solving real-world industry problems and is eager to take on new challenges and opportunities.

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George McIntire

Freelance Data Miner
Verified Expert in Engineering
UTC-08:00
United States
Toptal Member Since January 31, 2024

George is a results-driven data scientist who brings a diverse skill set and rich experience to the table. His expertise lies in data translation and a versatile toolkit, including Python, SQL, and machine learning. George excels at distilling complex findings into actionable and comprehensible insights, making data accessible and impactful for stakeholders.

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François Le Lay

Freelance Data Miner
Verified Expert in Engineering
UTC-05:00
United States
Toptal Member Since July 27, 2022

François is a seasoned leader with experience building data platforms and machine learning solutions at major technology companies and startups in B2C and B2B settings. François has spent seven years at Spotify building data infrastructure teams as a manager and leveraging machine learning techniques to improve the music catalog as a staff engineer.

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Brian Todd

Freelance Data Miner
Verified Expert in Engineering
UTC-05:00
United States
Toptal Member Since July 3, 2019

Brian is an experienced data scientist and machine learning engineer with a track record of researching and deploying a wide range of models for natural language processing (NLP) tasks, computer vision algorithms, classical machine learning algorithms, Bayesian statistical models, time series analysis models, and large-scale data mining algorithms.

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Miguel Araujo

Freelance Data Miner
Verified Expert in Engineering
UTC+00:00
Portugal
Toptal Member Since February 9, 2016

Miguel's background in software engineering and his PhD in Data Mining from Carnegie Mellon University make him the perfect bridge between product managers, developers, and data scientists. He has started and managed teams of data scientists and engineers to build data pipelines and machine learning infrastructure to support Insights and live ML deployments. He holds multiple best paper awards, and his transfer of research work to product features in fintech and ad tech has led to four patents.

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Miguel Vazquez

Freelance Data Miner
Verified Expert in Engineering
UTC+01:00
Spain
Toptal Member Since January 17, 2022

Miguel has a Ph.D. in computer science and bioinformatics. He learned about data mining 20 years ago and discovered a great field of application in Bioinformatics. Since then, Miguel has worked in many areas focusing on cancer genomics (text-mining, systems biology, web development, and workflows). He has written hundreds of thousands of lines of open-source code and developed the Rbbt framework, one of the most effective tools for data analysis, downloaded over a million times.

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Keval Katrodiya

Freelance Data Miner
Verified Expert in Engineering
UTC+05:00
India
Toptal Member Since October 18, 2024

Keval is a Python developer and web scraping expert focused on Python and cloud computing. Since 2015, he has contributed to product development from concept to maintenance across startups and corporate projects. Keval also excels in big data processing with PySpark and advanced analytics in AWS.

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Amanbir Singh

Freelance Data Miner
Verified Expert in Engineering
UTC+05:00
India
Toptal Member Since September 13, 2021

Amanbir has 10 years of experience in data science, analytics, and back-end engineering. He has worked at a large multilateral organization and with early-stage tech startups. Amanbir excels at working with clients in tackling complex business problems and has deep expertise in machine learning, data analysis, and building scalable web apps.

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Adrian Curic

Freelance Data Miner
Verified Expert in Engineering
UTC+08:00
Singapore
Toptal Member Since December 28, 2023

Adrian is a software engineer and data scientist working at the intersection of software engineering, computer vision, and machine learning. He has experience in research, multinational corporations, and startup environments and was awarded patents for real estate and financial modeling projects. Adrian also contributed to surveillance systems for Singapore's border security and participated in competitive coding and hackathons, consistently ranking in the top 1% on platforms like HackerRank.

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Khoa Nguyen

Freelance Data Miner
Verified Expert in Engineering
UTC+10:00
Australia
Toptal Member Since July 1, 2021

Khoa is a data scientist specializing in providing businesses with high-quality machine-learning solutions. He successfully helped deploy AI modules that assisted many advertising campaigns in optimizing their marketing strategies. He also contributed to several PoC projects outlining their feasibility of solving practical business problems. Khoa is also a well-rounded individual who can collaborate with many people at work and work independently.

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Darin Erat Sleiter

Freelance Data Miner
Verified Expert in Engineering
UTC+10:00
Australia
Toptal Member Since October 11, 2016

Darin is a data scientist and engineer with a PhD in physics from Stanford. He's passionate about data and machine learning and has worked on data science projects across numerous industries and applications. Darin's co-founded an AI company and led a team of data scientists to build a product that uses machine learning and optimization techniques to reduce energy consumption in data centers. He's eagerly waiting for quantum computers.

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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 Data Miners 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 data miner for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new data miner 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 Data Miners

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 data miners 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 data miner, 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 data miner, 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 data miners for your project.

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

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

  • We make sure that each engagement between you and your data miner 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 Data Miners Are in High Demand.

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