Hire the Top 3% of Freelance Data Collection Specialists

Toptal is a marketplace for dedicated Data Collection Specialists. Top companies and startups choose Toptal Data Collection freelancers for their mission-critical Data Collection development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Data Collection Specialists

Michael Seltenreich

Freelance Data Collection Specialist
United States
Toptal Member Since September 19, 2022

Michael is a full-stack (MERN) engineer and data scientist (Python). In 2013, Michael co-founded and served as CTO of Becomics.com, a publishing platform for webcomics and home to 17 million works by independent creators. In 2018, he exited to pursue his PhD at New York University, where he currently works as a research scientist. In the wake of the COVID-19 pandemic, Michael created psyxperiments.com, a web platform for conducting psychology experiments on remote participants (by invitation).

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Abraham Bruck

Freelance Data Collection Specialist
United States
Toptal Member Since June 18, 2020

Abraham's been working with databases since 1984, including Oracle, PostgreSQL, MS Access, MySQL, and more in Unix, Windows, and AWS (cloud) environments. His work experience runs the gamut from data analysis, modeling, migration, conversion, integration, aggregation, mining, optimization, performance tuning, warehousing to extensive, varied, and detailed reporting.

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Henrik Sergoyan

Freelance Data Collection Specialist
Toptal Member Since November 5, 2021

Henrik is a data scientist with over six years of professional experience. His primary expertise includes and is not limited to natural language processing, forecasting algorithms, gradient boosting algorithms for tabular data, data scraping, and machine learning operations (MLOps). As a senior data scientist, Henrik works with SQL and NoSQL databases, including MongoDB, and brings strong project management skills and excellence to his work.

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Luca Puggini

Freelance Data Collection Specialist
Toptal Member Since December 4, 2020

Luca is a senior data scientist with a Master's degree in mathematics, a Ph.D. in machine learning, and several years of industry experience. He worked at Intel and the University of Bergen, and developed tools for network performance monitoring in high-frequency trading, data-driven algorithms for production optimization in semiconductor manufacturing, and anomaly detection applied to network security. Luca excels with complex AI projects from the research phase to deployment and production.

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Daniel Beasley

Freelance Data Collection Specialist
Toptal Member Since August 14, 2022

Daniel is passionate about data analytics and confident in solving problems with machine learning. In the past, he's worked on various machine learning problems, including computer vision, price recommendation, and spectral classification. His best quality in this area is developing practical solutions to business problems. If an 80% solution in a short amount of time, it may be worthwhile to implement it and tackle a new problem.

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Michal Kolodziejczyk

Freelance Data Collection Specialist
Toptal Member Since September 30, 2022

Michal is a software developer with 22 years of experience in programming with C# and 26 years of IT experience. He is most valued for professionalism, ease of sharing knowledge, testing his solutions, and openness to new ideas and programming methods. Michal's experience with Raiffeisen and Citi gave him a solid financial background needed for demanding projects.

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Miguel Vazquez

Freelance Data Collection Specialist
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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Emilio Carnicero

Freelance Data Collection Specialist
Toptal Member Since December 29, 2021

Emilio is a computer science engineer and MBA graduate with 18 years of experience helping businesses define and analyze their KPIs across marketing, sales, operations, and finance. He is skilled in SQL and has been working with Tableau since 2011, developing all data integration required to feed Tableau from any data source. As a Tableau consultant and trainer, Emilio can quickly interpret the business needs and build insightful dashboards.

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Abdul Rahman Zukari

Freelance Data Collection Specialist
United Arab Emirates
Toptal Member Since October 12, 2022

Abdul is a certified data engineer and analyst with extensive experience in the healthcare and higher education industries. He worked on many projects involving high-profile clients, including public health and government entities. Abdul is skilled in statistical data analysis and data science.

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Nika Dogonadze

Freelance Data Collection Specialist
United Kingdom
Toptal Member Since January 22, 2018

Nika has over five years of experience working in tech, specializing in Python, data engineering, web scraping, and machine learning. He has a master's degree in data engineering and analytics and a great deal of experience working with various technologies. Nika is personable, communicates exceptionally well, and stands out with his work ethic.

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Juro Oravec

Freelance Data Collection Specialist
United Kingdom
Toptal Member Since March 2, 2022

Juro's skill set is that of a software startup co-founder—solutions architect, full-stack developer, data engineer, project manager, user researcher, business consultant and strategist, a bit of DevOps, mediocre designer, mediocre salesman, mediocre marketing guy, and a great comedian. He's deployed projects in academia, biotech, pharma, and marketing domains. Juro excels in highly complex systems.

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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
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


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


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


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


How to Hire Data Collection Specialists Through Toptal


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.

Work With Hand-Selected Talent

Within days, we'll introduce you to the right Data Collection specialist for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

Work with your new Data Collection specialist for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.


  • How are Toptal Data Collection specialists different?

    At Toptal, we thoroughly screen our Data Collection specialists to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire Data Collection specialists in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a Data Collection specialist within 48 hours of signing up.

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

    We make sure that each engagement between you and your Data Collection specialist 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 Collection Specialists Are in High Demand.

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