Hire the Top 3% of Freelance Data Miners

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.

No-Risk Trial, Pay Only If Satisfied.

Clients rate Toptal Data Miners 4.9 / 5 on average based on 591 reviews.

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Miguel Vazquez

Freelance Data Miner
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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Miguel Araujo

Freelance Data Miner
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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Gjorgji Madjarov

Freelance Data Miner
Macedonia
Toptal Member Since February 1, 2016

Gjorgji is an accomplished researcher who has a wealth of software engineering experience with an extensive university background in machine learning, pattern recognition, data mining, information retrieval, and so on. He is a cooperative peer and an eager implementer who is capable of performing remarkable individual work to the highest standards and criteria. Gjorgji has exemplary communication skills and pays attention to details.

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Merve Acar

Freelance Data Miner
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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Nicolas Debaene

Freelance Data Miner
France
Toptal Member Since April 1, 2020

With a master of science degree in engineering and a specialization in data science from Telecom ParisTech, Nicolas has been solving concrete business cases for five years using machine learning and data mining. His experience in the eCommerce, banking, and consulting sectors gives him a very strong technology portfolio and a deep understanding of different business types.

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Corentin Martel

Freelance Data Miner
France
Toptal Member Since September 27, 2018

Corentin earned a master's degree in engineering from Arts et Métiers ParisTech. He started coding in Python in 2014 and never stopped. Working as a freelancer since 2016, Corentin specializes in data mining and custom development of machine learning and deep learning-based products. Passionate about data science, he also teaches students in an online MSc program. Corentin enjoys working on new topics and learning from others.

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Zohar Strinka

Freelance Data Miner
United States
Toptal Member Since December 4, 2018

Zohar has a range of interests related to using data to make business decisions. These include every aspect of taking data from where it lives to the design and presentation of the final metrics. Her analytics toolkit includes data engineering, data science, optimization, and BI. She has industry expertise in supply chain, healthcare billing, people analytics, auctions, and lean engineering.

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Dénes Tóth, Ph.D.

Freelance Data Miner
Hungary
Toptal Member Since December 3, 2020

Denes holds a Ph.D. in cognitive science and an MSc in business administration and statistics: his native language is data. Since 2015, he has been delivering data analytic services in various industry sectors. He is a co-organizer of the Hungarian R meetup and contributes to various open-source R packages. Formerly, Denes worked as a research lab leader at the Brain Imaging Centre of HAS, where he excelled at answering challenging questions by first gaining a deep understanding of the problem.

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Eloi Ugo Pattaro

Freelance Data Miner
Germany
Toptal Member Since August 1, 2022

Eloi Pattaro is a full-stack staff data scientist, well-versed in Python, SQL, PySpark, and cloud technologies (AWS, GCP, and Azure). Eloi's expertise includes data architecture, data mining, data visualization, and process automation. He has a strong background in leading data science teams and interfacing with marketing and product teams to improve efficiency. He is fluent in English and Portuguese and looks forward to adding value to your project.

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Simone Romano

Freelance Data Miner
Finland
Toptal Member Since January 3, 2022

Simone is a machine learning scientist and engineer with experience in academia and enterprises, including Microsoft and Huawei. He likes to work at the intersection of deep machine learning, NLP, and information retrieval. Simone also loves to work on exploration analysis and building theoretically sound machine learning pipelines ready for production. He especially enjoys building web products.

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Anna Tshngryan

Freelance Data Miner
Netherlands
Toptal Member Since June 30, 2022

Anna is a data scientist with four years of experience in data analysis and machine learning. She works on end-to-end processes, from data scraping, data collection, and pre-processing, cleaning, and data visualization to predictive modeling development. She is skilled in training a number of ML models, comparing them, and conducting error analyses. Anna is looking for projects that allow her to use data and machine learning to solve complex problems.

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THE TOPTAL ADVANTAGE

98% of Toptal clients choose to hire our talent after a risk-free trial.

Toptal's screening and matching process ensures exceptional talent are matched to your precise needs.

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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 Data Miners Through Toptal

1

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.
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.

Find Experts With Related Skills

Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours.

FAQs

  • How quickly can you hire with Toptal?

    Typically, you can hire a Data Miner 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.

  • How do I hire a Data Miner?

    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.

  • How are Toptal Data Miners different?

    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 with Toptal, you’ll always work with world-class, custom-matched Data Miners ready to help you achieve your goals.

  • Can you hire Data Miners on an hourly basis or for project-based tasks?

    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.

  • What is the no-risk trial period for Toptal Data Miners?

    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 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 Data Miners Are in High Demand.

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