Hire the Top 3% of Freelance Spock Experts

Toptal is a marketplace for dedicated Spock Experts. Top companies and startups choose Toptal Spock freelancers for their mission-critical development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Spock Experts

Aleksei Vorontsov

Freelance Spock Expert
LatviaToptal Member Since August 10, 2020

Alexey is a senior full-stack developer with a strong focus on JVM-based languages on the back end and JavaScript frameworks (React, Angular) on the front end. From high-level architecture design to low-level optimizations, Alexey pays stringent attention to code quality and performance. He delivers software with in-depth unit, integration, and end-to-end tests to guarantee stability and reliability. Alexey is comfortable leading teams, is easy to work with, and enjoys a diverse environment.

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Kalyan Sangaraju

Freelance Spock Expert
United KingdomToptal Member Since June 29, 2022

Kalyan is an ISEB- and ISTQB-certified quality assurance engineer with 15 years of experience in manual and automation testing. He is an expert in creating automation frameworks for UI, API, and performance from scratch using Java, Selenium, Cucumber, and Gatling. He is proficient in various types of testing, including functional, regression, and user acceptance testing (UAT). Kalyan's experience in testing extends to client server, web, and cloud applications on Unix and Windows.

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Niksa Klecak

Freelance Spock Expert
SerbiaToptal Member Since May 28, 2019

Niksa is a senior SDET with over ten years of experience. He has a proven track record of delivering successful projects for large corporations like Cisco and Adobe. He also has extensive experience in automation with UI, API, and mobile applications, combined with my strong understanding of Jenkins pipelines and testing processes, which have been critical to the software's reliability and consistency.

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Liubov Mietielieva

Freelance Spock Expert
LuxembourgToptal Member Since September 2, 2019

Liubov is a back-end developer with a strong information security background specializing in Grails and Spring-based applications with experience in front-end, data science, and mobile applications. Liubov delivers clean, maintainable, and well-tested code.

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Tom Feron

Freelance Spock Expert
EstoniaToptal Member Since July 20, 2020

Tom is a senior developer with several years of experience building web applications in their entirety—from the user interface to the servers—at large companies such as Nature and startups like Habito or Scrive. Tom joined Toptal because he was interested in freelancing and wanted additional opportunities to learn more. Tom specializes in back-end development, especially using Haskell and DevOps on cloud platforms, but is keen on working with whatever tools best fit the job.

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Christopher Smith

Freelance Spock Expert
United StatesToptal Member Since October 11, 2016

Christopher is an expert JVM developer with solid experience building with Spring, Groovy, and the JVM ecosystem in general. He has managed the full software lifecycle from requirements to deployment, along with systems administration and networking (CCDP/CCNP). He is a proactive guy who's looking for projects that involve back-end engineering, infrastructure questions, networking, orchestration, and harder functional programming.

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Filip Hoffmann

Freelance Spock Expert
PolandToptal Member Since September 21, 2022

Filip is a senior back-end developer with over five years of professional experience. He has built back ends with Flask, Django, and Pyramid, specializing in data-intensive applications. In his work, Filip follows best practices like test-driven development (TDD) and domain-driven design (DDD) to deliver reliable and maintainable software.

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Martin Bechtle

Freelance Spock Expert
ItalyToptal Member Since December 2, 2019

Specializing in agile transformation, DevOps, cloud platforms, microservices architecture, and API engineering, Martin has nearly a decade of experience as a software engineer, architect, tech lead, and CTO in fintech, banking, translations, and publications with an international clientele. He works closely with developers and stakeholders, his favorite platforms are AWS and GCP, and his go-to languages are Java, Kotlin, and Go.

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Mesut Tekin

Freelance Spock Expert
United KingdomToptal Member Since April 13, 2020

Mesut is a talented developer with a strong academic background and a Ph.D. in business management. He has over 18 years of experience in architecture, development, and restructuring systems such as web sites, microservices, client-server object-oriented technologies, and event-driven apps in different sectors. He also has expertise in building microservice-based cloud applications and integrating disparate systems using Docker and Kubernetes with RESTful architectural style.

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Luiz Antonio Mitidiero de Moraes Jr.

Freelance Spock Expert
BrazilToptal Member Since August 24, 2015

Luiz is a strategic and execution-oriented engineering executive with 15+ years of building scalable customer-facing products across multiple industries. He specializes in creating and improving engineering culture in remote working environments and is passionate about impacting people's lives. Luiz's core competencies are strategic vision and goal setting, iterative shipping from MVP to a global scale, and system design and architecture with excellent communication skills using the big picture.

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Adrian Moldovan

Freelance Spock Expert
RomaniaToptal Member Since April 11, 2019

Adrian has over a dozen years of experience in the IT field with the last seven years being spent focusing on test automation. He's passionate about building tools and test frameworks that bring extra value to the software development process. Adrian joined Toptal to test the waters of freelancing and to share his knowledge and expertise.

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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 Spock Experts 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 Spock expert for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

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


  • How are Toptal Spock experts different?

    At Toptal, we thoroughly screen our Spock experts 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 Spock experts in less than 48 hours through Toptal?

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

  • What is the no-risk trial period for Toptal Spock experts?

    We make sure that each engagement between you and your Spock expert 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 Spock Experts Are in High Demand.

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