Hire the Top 3% of Freelance Async.js Developers

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

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Hire Freelance Async.js Developers and Engineers

Ronen Elster

Freelance Async.js Developer
IsraelToptal Member Since April 29, 2021

Ronen is a front-end developer with a decade of experience. He has developed cross-browser support for unsupported browsers up to IE9 enabled for JavaScript and CSS, led massive refactor projects of legacy web applications that used outdated technologies, and created pixel-perfect websites based on PSD designs. He focuses on optimization and looks for where code might break down. Ronen has published native mobile apps to the Google Play Store and Apple App Store and enjoys mentoring developers.

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Ankush Singhal

Freelance Async.js Developer
United Arab EmiratesToptal Member Since May 19, 2021

Ankush is a software engineer with more than eight years of demonstrated experience and an assortment of skills in designing, architecting, developing, and delivering high volume and high availability multi-channel applications in banking, logistics, aviation, and travel domains. Ankush has a passion for learning and has delivered technological solutions for various clients across the globe efficiently while exceeding their expectations.

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Michael Foss

Freelance Async.js Developer
United StatesToptal Member Since December 2, 2019

Michael focuses on React and modern JavaScript/TypeScript frameworks and has spent time in full-stack roles using Node.js servers for top-tier international companies. With his fantastic communication and leadership skills, he has led teams of developers from 2-10. His most attractive attribute is his attention to detail, followed closely by his demand for quality. Michael has significant experience working in the fashion and beauty industry, as well as with fintech companies.

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Johnathan Hebert

Freelance Async.js Developer
United StatesToptal Member Since March 19, 2017

Johnathan has 15 years of experience writing web apps that span consumer productivity software to mission-critical financial trading platforms. He has extensive knowledge of front-end JavaScript and browser APIs as well as significant experience with popular frameworks and libraries like React and Redux. Johnathan's deep full-stack experience includes Node.js and Express, MongoDB as well as more traditional technologies like PHP, ASP.NET, and MySQL.

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Eduard Shulman

Freelance Async.js Developer
CanadaToptal Member Since May 19, 2020

Eduard is a full-stack developer who draws upon his decade of experience and hands-on and can-do approach to successfully develop web and mobile apps, including their front and back ends. He excels at analyzing business problems and then providing solutions using the most suitable design, technologies, and services—both on-site and cloud—to support scale, durability, and reliability while remaining cost-effective. In his free time, Eduard learns new tech by tinkering with his private projects.

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Alexander Price

Freelance Async.js Developer
United StatesToptal Member Since November 23, 2018

Since 2013, Alexander has been in the software development field. He has about 20 apps in production with over 100 million monthly users, and most recently, he led and built Plex Banking by Google. He is highly technical but also able to lead teams. Alexander is perfect for consulting on designing systems and advising on organizing your organization or for independent projects.

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Moshe Simantov

Freelance Async.js Developer
IsraelToptal Member Since September 18, 2015

Moshe is a software engineer with nearly two decades of experience. Having acclimated swiftly within the dynamic startup ecosystem, he demonstrates remarkable proficiency in building impactful products. His diverse skill set encompasses both back-end and front-end development, and he has even served as a CTO. By consistently embracing challenges, Moshe has learned how to leverage them as opportunities to deliver successful products.

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Aminadav Glickshtein

Freelance Async.js Developer
IsraelToptal Member Since September 26, 2017

Aminadav has 15+ years of professional experience and started coding at the age of seven, making programming like a native language for him. As a full-stack and blockchain architect, developer, and consultant, he has in-depth knowledge of many areas and possesses the ability to code quickly and efficiently. During the past ten years, his primary focus has been on full-stack development. StackOverflow rated him at the top 1% of developers.

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Donovan Allen

Freelance Async.js Developer
United StatesToptal Member Since September 15, 2021

Donovan is a software development engineer fond of programming language design and distributed systems. He's the first author of an IEEE published paper on network security and has contributed to many open-source repositories like Google's Puppeteer and pytube. In his free time, he challenges himself to recreate standard tools from scratch to better understand how they work and their limitations. This has led him to create his programming language, operating system, and web proxy.

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David Pfeffer

Freelance Async.js Developer
United StatesToptal Member Since October 17, 2016

David is a software engineer and an adjunct computer science professor at Stevens Institute of Technology in Hoboken, NJ. They've been involved in a number of startup businesses and worked in the financial services sector on high bandwidth/high transaction computing. They're an expert in C#/.NET and TypeScript, having used both since initial betas, and they do regular work with .NET Core and Node.js on the back end and React, Angular, Cordova, and Ionic on the front end.

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Prashant Singh

Freelance Async.js Developer
United KingdomToptal Member Since January 21, 2019

Prashant is a full-stack developer with a broad and versatile coding skill set. He quickly helps startups and enterprises with prototypes and ideas by efficiently building those things into reality. His expertise lies in building MVPs, apps, enterprise software, scalable microservices, web crawlers, REST and Socket APIs, infrastructure modeling, AWS, and deployments. Prashant is the go-to guy for any of your development needs.

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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 Async.js 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 Async.js developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How are Toptal Async.js developers different?

    At Toptal, we thoroughly screen our Async.js 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 Async.js developers in less than 48 hours through Toptal?

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

  • What is the no-risk trial period for Toptal Async.js developers?

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

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