Hire the Top 3% of Freelance Fiddler Developers

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

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Fiddler Developers and Engineers

Mark Wadie

Freelance Fiddler Developer
EgyptToptal Member Since August 5, 2022

Mark is a Software quality assurance (QA) specialist with 7 years of experience with proven experience in web and mobile app testing. He is proven to identify and report defects, write test cases, and work with cross-functional teams. Mark is passionate about building quality products that delight users.

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Abdelrady Tantawy

Freelance Fiddler Developer
United StatesToptal Member Since February 1, 2019

Abdelrady is a full-stack software engineer with 10+ years of development experience in medium to large size corporations including Intel, S-FDA, and GrowthZone. He has deep knowledge in multiple technologies including C#, JavaScript, ASP.NET, AngularJS, Entity Framework, SQL, and more. Abdelrady is passionate about building high-scalability software systems.

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Ramiro Agustin Palacios

Freelance Fiddler Developer
SpainToptal Member Since April 6, 2013

Ramiro is a PMP Certified ScrumMaster and experienced systems engineer with over ten years of software development experience in Microsoft environments. He's self-taught, self-motivated, and proactive. With an innovative attitude, he is committed to the use of best practices to produce high quality applications.

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Joseph Chiang

Freelance Fiddler Developer
AustraliaToptal Member Since June 18, 2014

Joseph has over ten years of experience as a front-end developer with solid knowledge of web development and solutions. He develops largely with JavaScript (React/Redux), Node.js, and PHP, and also has over five years of proven experience building and leading teams in Agile development environments. He's looking for innovative and challenging opportunities.

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Ivan Sedlak

Freelance Fiddler Developer
SerbiaToptal Member Since December 8, 2015

Ivan has over 12 years of professional hands-on experience using a wide range of Microsoft technologies, mainly on enterprise web applications, security, internet, and serverless functions. His previous position was in a private company working as a senior .NET full-stack developer, software architect, and team leader. He has worked primarily on large-scale projects. Ivan has been working with Toptal clients since 2015.

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Volodymyr Roman

Freelance Fiddler Developer
UkraineToptal Member Since January 11, 2018

Volodymyr is an experienced Java developer with knowledge of architecture design. He primarily focuses on web projects and using various web technologies. Volodymyr has good analytical thinking skills and likes to solve difficult and challenging tasks. He is responsible and always ready to help teammates.

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Ivan Kukushkin

Freelance Fiddler Developer
TurkeyToptal Member Since April 5, 2023

Ivan is a senior software engineer with 8+ years of experience in the contact center industry. Throughout his career, he has updated 16 centers, created an AI voice assistant, and developed 18 IVR applications. Ivan is a seasoned developer passionate about innovative solutions with strong decision-making and collaboration skills and the ability to contribute and drive positive change in organizations.

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Alexander Skogorev

Freelance Fiddler Developer
ThailandToptal Member Since July 9, 2015

For the past 15 years, Alexander has worked with .NET technologies. Back then, he began with .NET Framework 3.5 and currently works with the latest .NET Core. He has experience in cloud-based solutions such as Azure and Amazon. He has devoted a lot of time to optimizing code performance. Alexander has excellent experience in finding and fixing security issues. Besides the back end, he is good at modern front-end JavaScript frameworks such as Vue, React, and AngularJS.

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Dimitar Stoykov

Freelance Fiddler Developer
BulgariaToptal Member Since December 16, 2021

Dimitar is a senior software engineer with five years of experience building web and desktop applications. He has expertise in server-side and client-side JavaScript-based technologies, including React and Node.js. Dimitar's primary focus has been helping enterprise companies build business applications, but he has also worked with smaller consumer-oriented companies to achieve their goals. Dimitar is known for delivering complex projects under tight deadlines.

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Andrii Hembar

Freelance Fiddler Developer
PortugalToptal Member Since March 23, 2022

Andrii has over eight years of experience in automation testing, including web, mobile, desktop, embedded, and database services. Skilled in different technologies, programming languages, and frameworks, he has experience setting up testing from scratch, estimating, leading, and mentoring small teams of test engineers. As an engineer, Andrii is passionate about learning new technologies and using them to get the best results towards product quality.

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Niksa Klecak

Freelance Fiddler Developer
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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Discover More Fiddler 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 Fiddler 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 Fiddler developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

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


  • How are Toptal Fiddler developers different?

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

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

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

    We make sure that each engagement between you and your Fiddler 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 Fiddler Developers Are in High Demand.

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