Spark

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 startups choose Toptal Spark freelancers for their mission-critical software projects.

No-Risk Trial, Pay Only If Satisfied.

Clients Rate Toptal Spark Developers4.5 / 5.0on average across 539 reviews as of Apr 18, 2024

Hire Freelance Spark Developers and Engineers

Andreas Bollig

Freelance Spark Developer
GermanyToptal Member Since November 22, 2019

With a Ph.D. in electrical engineering and extensive experience in building machine learning applications, Andreas spans the entire AI value chain, from use case identification and feasibility analysis to implementation of custom-made statistical models and applications. Throughout projects, he stays focused on solving the business problem at hand and creating value from data.

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Steve Fox

Freelance Spark Developer
United StatesToptal Member Since August 21, 2019

Steve is a certified AWS solution architect professional with big data and machine learning speciality certifications. He has a diverse background, and experience architecting, building, and operating big data machine learning applications in AWS. Steve has held roles from technical contributor to CTO and CEO.

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Luigi Crispo

Freelance Spark Developer
United Arab EmiratesToptal Member Since December 6, 2019

Luigi is a seasoned cloud and leadership specialist with over two decades of professional experience in a variety of environments. He is passionate about technology and value-driven projects, and he is highly adaptable. Luigi has been part of significant industry transformation waves directly from some of the leaders driving the digital era.

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Sung Jun (Andrew) Kim

Freelance Spark Developer
AustraliaToptal Member Since June 18, 2020

As a highly effective technical leader with over 20 years of experience, Andrew specializes in data: integration, conversion, engineering, analytics, visualization, science, ETL, big data architecture, analytics platforms, and cloud architecture. He has an array of skills in building data platforms, analytic consulting, trend monitoring, data modeling, data governance, and machine learning.

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Yuxiang Bao

Freelance Spark Developer
United StatesToptal Member Since August 28, 2019

Having studied advanced machine learning (ML) theory for the past three years, it’s safe to say Yuxiang knows ML quite well and he's delivered multiple projects using cutting-edge ML algorithms and tools. While at school, he also spent two years researching NLP. With a solid knowledge base in ML and NLP, hands-on experience, and exemplary communication skills—both written and verbal—Yuxiang will add value to your project.

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Ivan Nikolajev

Freelance Spark Developer
Czech RepublicToptal Member Since November 21, 2019

Ivan has experience working as a data scientist and a data engineer in network security and finance industries. This includes processing and cleaning data, formalizing business problems and creating solutions by designing features and applying machine learning techniques to solve the problems. Ivan works with big data using Spark and MapReduce, and can visualize and present results to stakeholders in an easy-to-understand format.

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Diego Ariel Bendersky

Freelance Spark Developer
ArgentinaToptal Member Since October 14, 2019

Diego is a computer science licentiate with more than 15 years of experience. He's worked for companies of all sizes, both on-site and remotely, mainly as senior developer/architect (programming in C/C++, Python and recently Go), and as a technical leader for small teams of programmers. He has a problem-solving attitude and likes to use the most suitable tool for each task. He's a co-author of two patents and a few research publications.

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Weidong Ding

Freelance Spark Developer
CanadaToptal Member Since June 24, 2020

Weidong Ding has proven experience as a senior data/integration architect, recently focusing on SAP Data Services. He's detailed, hands-on, and efficient with comprehensive background planning, designing, and implementing information systems for leading organizations in the banking, transportation, retail, and government sectors. He leverages strong communication and customer service skills, working with clients and colleagues to achieve success.

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Resources to Hire Spark Developers

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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 Spark Developers 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 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.

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 are Toptal Spark developers different?

    At Toptal, we thoroughly screen our Spark developers 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 Spark developers in less than 48 hours through Toptal?

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

  • What is the no-risk trial period for Toptal Spark developers?

    We make sure that each engagement between you and your Spark 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 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.

Featured Toptal Spark Publications

Top Spark Developers are in High Demand.

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