How are Toptal Koa developers different?

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

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

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

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

Hire the Top 3% of Freelance Koa Developers

Name: Koa Development Services
Brand: Toptal
Rating: 4.5 (8444 reviews)

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

Hire a Top Koa Developer Now

No-Risk Trial, Pay Only If Satisfied.

Clients Rate Toptal Koa Developers4.5 / 5.0on average across 8,444 reviews as of Mar 30, 2024

Trusted by leading brands and startups

Watch the case study

Hire Freelance Koa Developers and Engineers

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View Felipe

Felipe Bernardes

Freelance Koa Developer

BrazilToptal Member Since January 15, 2018

Felipe is a skilled front-end and UI developer passionate about UX and creating and implementing next-generation user interfaces. His expertise in front-end development is based on a wide understanding and practice of core concepts from HTML, CSS, and JavaScript; he has been following these technologies over the past five years, always keeping up to date. He believes that developers, more than lines of code, must always deliver value.

Koa HTML5 Animations React iOS Zsh HTML5 APIs NPM CSS3 Animation Chart.js Ionic Responsive UI AngularJS Gulp + more

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View John

John Philippakos

Freelance Koa Developer

NetherlandsToptal Member Since September 1, 2019

John is a senior JavaScript engineer with extensive experience creating enterprise web applications. He has led teams of up to eight developers while acting as an architect on several applications, including multiple high-profile projects in the banking sector.

Koa Trello JavaScript TypeScript CSS Bootstrap 3+Angular Material NgRx RxJS jQuery Webpack Git Reactive Programming + more

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View Jasper

Jasper Schulte

Freelance Koa Developer

NetherlandsToptal Member Since June 7, 2019

Jasper is a veteran full-stack JavaScript/TypeScript engineer. The first decade of his career, he spent building his own company developing web platforms for his clients and constructing scalable and maintainable platforms. After selling his shares in 2015, he started consulting for companies, leveraging this expertise. As a person, Jasper is friendly, very proactive, and operates using extremely high-quality standards.

Koa JavaScript JavaScript 6 JavaScript 5 TypeScript TypeScript 2 AngularJS Redux React JavaScript Testing Terraform Amazon S3 (AWS S3)jQuery + more

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View Daniel

Daniel Yinanc

Freelance Koa Developer

CanadaToptal Member Since February 6, 2019

Daniel is a data scientist and AI/ML engineer with over a decade of experience in the field, particularly specialized in data science and machine learning domains with a special emphasis on building high security ML platforms. Having worked over a decade as a data scientist, application security architect and principal consultant specializing in data science, cybersecurity and machine learning.

Koa Machine Learning Unit Testing Functional Testing AWS DevOps Cloud Performance Testing Cybersecurity Application Security Information Security DevSecOps DevOps Security + more

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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.

Start Hiring

Trustpilot

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.

Start Hiring

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

Leading a digital transformation

Building a cross-platform app to be used worldwide

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
Tripcents

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
K Dunn & Associates

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
Radeeus

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
ProHatch

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
Site Specific Software Solutions

We used Toptal to hire a developer with extensive Amazon Web Services experience. We interviewed four candidates, one of which turned out to be a great fit for our requirements. The process was quick and effective.
Abner Guzmán Rivera, CTO and Chief Scientist
Photo Kharma

Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.
Dennis Baldwin, Chief Technologist and Co-Founder
PriceBlink

Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it.
André Fischer, CTO
POSTIFY

We needed a expert engineer who could start on our project immediately. Simanas exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient. Toptal is now the first place we look for expert-level help.
Derek Minor, Senior VP of Web Development
Networld Media Group

Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.
Jeremy Wessels, CEO
Kognosi

We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.
Ryan Morrissey, CTO
Applied Business Technologies, LLC

I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.
Pietro Casoar, CEO
Ronin Play Pty Ltd

Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!
George Cheng, CEO
Bulavard, Inc.

As a Toptal qualified front-end developer, I also run my own consulting practice. When clients come to me for help filling key roles on their team, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal is the best value for money I've found in nearly half a decade of professional online work.
Ethan Brooks, CTO
Langlotz Patent & Trademark Works, Inc.

In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered!
Lara Aldag, CEO
Higgle

Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver. I would definitely recommend their services to anyone looking for highly-skilled developers.
Michael Gluckman, Data Manager
Mxit

Toptal’s ability to rapidly match our project with the best developers was just superb. The developers have become part of our team, and I’m amazed at the level of professional commitment each of them has demonstrated. For those looking to work remotely with the best engineers, look no further than Toptal.
Laurent Alis, Founder
Livepress

Toptal makes finding qualified engineers a breeze. We needed an experienced ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. After making our selection, the engineer was online immediately and hit the ground running. It was so much faster and easier than having to discover and vet candidates ourselves.
Jeff Kelly, Co-Founder
Concerted Solutions

We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.
Franco Arda, Co-Founder
WhatAdsWork.com

Toptal offers a no-compromise solution to businesses undergoing rapid development and scale. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.
Greg Kimball, Co-Founder
nifti.com

How to Hire Koa 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 Koa developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

Work with your new Koa 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.

Dojo Developers Express.js Developers Vue.js Developers Knockout.js Developers Kohana Developers Node.js Developers Hapi.js Developers Mongoose Developers

FAQs

How are Toptal Koa developers different?
At Toptal, we thoroughly screen our Koa 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 Koa developers in less than 48 hours through Toptal?
Depending on availability and how fast you can progress, you could start working with a Koa developer within 48 hours of signing up.
What is the no-risk trial period for Toptal Koa developers?
We make sure that each engagement between you and your Koa 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
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
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
Hire talent within 48 hours and scale your team up or down as needed, no strings attached.
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
Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.
Expert Talent Matching
Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.