Hire the top 3% of freelance Spark developers.

Toptal is a marketplace for top Spark developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal Spark freelancers for their mission-critical software projects.

We’ve been blown away by the level of talent we've been able to hire through Toptal.

Brad Rozran, Optimizely
Meet our
Spark Developers
Alexis Hernandez
Software Engineer
Previously at
Anne Adams
Senior Developer
Previously at
Danilo Resende
Senior Software Engineer
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April Leone
Senior Software Developer
Previously at
Jongwook Kim
Software Engineer
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Darin Erat Sleiter
Senior Software Developer
Previously at
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Our Exclusive Network of Spark Developers

Andres Ferraro

Spark Developer
Andres is a full-stack software engineer with some experience in machine learning. He has developed for a variety of projects, from web applications to b... Read More
Andres is a full-stack software engineer with some experience in machine learning. He has developed for a variety of projects, from web applications to big data solutions. He is now working as a researcher at the Music Technology Group of the Universitat Pomepu Fabra of Barcelona. He is also an open source enthusiast. Read Less
SparkPythonDjango
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Radek Ostrowski

Spark Developer
Radek is a certified Toptal Blockchain Engineer particularly interested in Ethereum and smart contracts. In the fiat world, he is experienced in big data... Read More
Radek is a certified Toptal Blockchain Engineer particularly interested in Ethereum and smart contracts. In the fiat world, he is experienced in big data/machine learning projects. He is a triple winner in two different international IBM Apache Spark competitions, co-creator of PlayStation 4's back-end, a successful hackathon competitor, and speaker at conferences in Australia, Poland, and Serbia. Read Less
SparkJavaScalaSpring+7 More
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Hire Spark Developers Seamlessly with 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 Spark developer for your project. Average time to match is under 24 hours.
3
The Right Fit, Guaranteed
Work with your new Spark developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

Tap Into World‑Class Talent

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.
Your New Team Member
We are so sure you will love your new team member, than you can try working with them for a few days. Pay only if satisfied.
Scale as Needed
Hire talent within 48 hours. Scale your team up or down exactly when you need it, no strings attached.
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
Choose the engagement type that suits your needs – hourly, part-time, or full-time – with the ability to change anytime.
Expert Talent Matcher
Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.