Hire the Top 3% of Freelance Katalon Studio Developers

Toptal is a marketplace for dedicated Katalon Studio developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Katalon Studio freelancers for their mission-critical development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Katalon Studio Developers and Engineers

Stefanos Petrakis

Freelance Katalon Studio Developer
SwitzerlandToptal Member Since January 26, 2021

Stefanos is an experienced developer who has programmed with PHP, Symfony, and primarily Drupal for more than a decade. His background in computer science, cognitive psychology, and computational linguistics allows him to work inside web technologies in a most versatile and innovative way. Freelancing using open source technologies feeds his soul as much as his desire to solve difficult problems for others using his unique skillset.

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Sampath Kumar Maka

Freelance Katalon Studio Developer
SingaporeToptal Member Since May 25, 2020

Sampath is a senior, full-stack QA automation engineer and leader. As a test engineer, architect, and manager, he has proven successes in web, eCommerce, hedge fund management, middle-office, back-office, and post-trade technologies. He is well-versed in functional, automation, ETL, database, mobile, and API testing. Sampath enjoys building and leading teams that meet and exceed goals and expectations.

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Darshan Shah

Freelance Katalon Studio Developer
United StatesToptal Member Since March 12, 2020

Darshan is a QA expert with experience in web application and mobile application testing. He's skilled in all areas of testing including test strategy, test plan, test scenarios, test cases, and test scripts based on user requirements for functional, smoke, regression, integration, usability, and cross-browser compatibility. He is an expert in Java and Selenium and has worked with a variety of frameworks like keyword-driven development, TDD, and BDD.

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Adebimpe Adekoya

Freelance Katalon Studio Developer
NigeriaToptal Member Since March 31, 2022

Adebimpe is a skilled QA engineer with 6+ years of experience testing web applications and APIs for financial service providers. Her professional experience includes analyzing business requirements, creating test plans and test cases, executing tests to identify bugs, and creating and maintaining automated tests. Adebimpe has a bachelor's degree in computer science.

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Alejandro Restrepo Muñoz

Freelance Katalon Studio Developer
ColombiaToptal Member Since December 23, 2022

Alejandro is a QA engineer with over 6 years of experience in manual and automated testing for web and mobile applications within the banking and fintech sectors. He has experience designing, building, executing, and maintaining automated tests, including API testing and integration with the CI/CD methodology. Alejandro is self-sufficient and has taught himself various stacks, making him efficient in implementing technologies, tools, or techniques needed for the team or the client.

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Tarek Roshdy

Freelance Katalon Studio Developer
EgyptToptal Member Since April 11, 2022

Tarek is a software quality assurance engineer with 7+ years of experience working as a product owner and software tester of mobile, web, and desktop applications. With a background in engineering, he owns several certifications related to agile methodologies, mobile applications, artificial intelligence, and software testing, namely from ISTQB and ASTQB. Tarek is keen on QA processes and methods and was awarded the best QA twice in a row in Testathon Egypt, 2017 and 2020.

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Ibrahim Yousef Shawahna

Freelance Katalon Studio Developer
PalestineToptal Member Since March 3, 2022

Ibrahim is a QA test automation engineer and lead with seven years of experience in eCommerce. Along with building test automation frameworks, his experience includes Selenium, Appium, Jenkins, Applitools Eyes, Cypress, JUnit, singleton design pattern, self-managed testing, Mocha, and Chai assertion library.

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Alin Popa

Freelance Katalon Studio Developer
RomaniaToptal Member Since October 27, 2021

Alin is a mobile engineer eager to face new challenges and deliver high-quality products. He brings hands-on experience with mobile applications architecture, high-quality design and user experience, incredible app performance, and responsiveness, and also, among many others, excellent social skills. Alin takes ownership, delivers on time, and aims for the best possible outcome in any given scenario.

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Mateus Viana de Oliveira e Costa

Freelance Katalon Studio Developer
BrazilToptal Member Since July 22, 2021

Mateus is a creative and proactive developer with 6 years of experience creating products and driving revenue growth through innovative strategy, high-quality architectures, and team leadership. He is a business-focused technologist that assumes ownership over his projects and thrives in fast-paced environments, always balancing the quality and speed of deliveries. For the last three years, he has worked mainly for fintech that leveraged the power of Django and Python to create marketplaces.

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Srdjan Miljus

Freelance Katalon Studio Developer
SerbiaToptal Member Since March 22, 2024

Srdjan is a senior QA engineer with expertise in test automation and manual testing for web and mobile applications. He has created test automation frameworks from the ground up utilizing Selenium in several projects and automated API testing using RestSharp and Postman. With experience in private and public sectors, Srdjan has worked with large, medium-sized, and small startup companies and has experience defining processes, procedures, and tools to achieve the best quality.

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Diego Loyola

Freelance Katalon Studio Developer
SlovakiaToptal Member Since October 20, 2020

Diego is a seasoned senior quality assurance automation engineer with 19 years of experience building, managing, and testing applications. His main expertise lies in implementing automation testing strategies in DevOps environments, designing and testing REST APIs, web applications, and performance load testing.

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Discover More Katalon Studio Developers in the Toptal Network

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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 Katalon Studio Developers 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 Katalon Studio developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

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


  • How are Toptal Katalon Studio developers different?

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

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

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

    We make sure that each engagement between you and your Katalon Studio 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.

Top Katalon Studio Developers Are in High Demand.

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