Hire the Top 3% of Freelance Retrofit Developers

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

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Hire Freelance Retrofit Developers and Engineers

View Tomasz

Tomasz Czura

Freelance Retrofit Developer

PolandToptal Member Since November 29, 2015

Tomasz is an Android developer who specializes in creating user-friendly and useful applications with the newest technologies. He enjoys experimenting with different languages and technologies, extending his skill set beyond Android to tasks leveraging React or iOS. Tomasz makes it a personal goal to ensure the client is fully satisfied, and often likens the process of software development to writing a good, interesting novel.

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RetrofitAndroid SDKAndroid APIButterknifeRubyMineAndroid StudioAndroidJavaKotlinRuby on Rails (RoR)JavaScriptGitHubReact
View Alex

Alex Nitu

Freelance Retrofit Developer

RomaniaToptal Member Since January 4, 2019

Alex is an Android developer with more than six years of experience in architecture, technical design, and implementation. He's worked on many projects—both alone or as part of a team—using multiple flavors of Agile software development methodologies; and on some of them, he provided technical leadership and mentoring. In a nutshell, on every project that Alex works on, he aims to write maintainable and reusable software.

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RetrofitJavaAndroid SDKAndroidSecurity
View Ruslan

Ruslan Iskhakov

Freelance Retrofit Developer

RussiaToptal Member Since October 4, 2016

Ruslan has hands-on experience with Android native apps development since 2011 and with iOS native apps development since 2016. In projects he collaborates on, he aims to deliver reliable, scalable, and maintainable software in a short time. He loves to use the latest mobile development technologies in his work.

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RetrofitJavaAndroid StudioAndroidAndroid ArchitectureOracle
View José

José Silva

Freelance Retrofit Developer

PortugalToptal Member Since April 20, 2017

For the past eight years, José has been working as a mobile developer—amassing a vast knowledge of the Android SDK and building highly interactive mobile apps with complex UIs and multimedia elements along with network communication and an overriding prerogative to provide the best UX possible. At his core, he is driven by his curiosity and this enables him to create solutions that cover all the necessities and more.

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RetrofitJavaAndroid SDKAndroid StudioAndroid
View Nicolae

Nicolae Arbuleac

Freelance Retrofit Developer

RomaniaToptal Member Since November 24, 2014

Nicolae is an outstanding Android software developer with over 3 years of experience in the field. He has worked on a large variety of projects and is comfortable working with teams that are small, large, local, or distributed. He likes the challenges that Android development brings, particularly in relation to the range of Android devices on the market.

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RetrofitJavaAndroid SDKButterknifeVolley Android LibraryTwitter APIFacebook APIAndroid StudioAndroidiBeaconReact
View Agustin

Agustin Vazquez

Freelance Retrofit Developer

ArgentinaToptal Member Since June 4, 2017

As an entrepreneur, Agustin understands the importance of proactivity and results and has learned the meaning of responsibility and accountability. He is more of a generalist than a specialist, though he loves the detail and deep understanding that comes from intense focus and work on development projects.

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RetrofitJavaReact NativeSpring BootGitMobileiOSAndroid
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João Dias Barbosa

Freelance Retrofit Developer

PortugalToptal Member Since February 4, 2014

João is a passionate iOS and Android developer with a strong attention to detail that has yielded great apps. He has delivered many projects for millions of users, for both startups and big companies, and he's worked extensively on back-end and API integrations. He has a very positive attitude and works well both alone and on teams.

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RetrofitObjective-CJavaiOS SDKScrumAndroid SDKFacebook APITwitter APIXcodeSwiftAndroid StudioAgile Software DevelopmentiOS
View Amar

Amar Idrizovic

Freelance Retrofit Developer

Bosnia and HerzegovinaToptal Member Since May 28, 2015

Amar has been a mathematician for as long as he can remember, looking for patterns, problems to solve, and challenges to meet. For him, computer science is just applied math. He's been writing code for more than a decade now, mostly games and purpose-specific apps, some of which are used by 1+ million users. As the Toptal Community Leader for Sarajevo, he's fluent in English and loves working in teams of all shapes and sizes.

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RetrofitJavaXMLVolley Android LibraryAndroid StudioAndroidDatabasesAndroid SDKGitFirebaseApps.NET
View Pierce

Pierce Zaifman

Freelance Retrofit Developer

CanadaToptal Member Since March 4, 2017

Pierce's been developing Android apps for over 4 years from the initial planning phases to deployment, primarily in a professional environment. He has a strong educational base with his Bachelor of Science in computer science from Western University where he graduated with an honors specialization and with distinction.

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RetrofitJavaAndroid SDKAndroid
View Eliran

Eliran Goshen

Freelance Retrofit Developer

IsraelToptal Member Since October 5, 2015

Starting as a hobby, Eliran has developed Android applications professionally for the last few years. He has worked on various types of projects—some starting from scratch, some jumping in at the later stages, some alone, and others as part of a team. He's friendly, communicates well, and is highly motivated. Eliran is also a challenge lover, an analytical thinker, and someone who has a solid academic background with a BSc in computer science.

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RetrofitJavaReactAndroid SDKFacebook APIGoogle Maps SDKGoogle Maps Geocoding APIParse SDKUI TestingAndroidPush NotificationsGitAndroid Studio
View Nikola

Nikola Minoski

Freelance Retrofit Developer

MacedoniaToptal Member Since August 6, 2014

Nikola is a passionate freelance mobile app developer with 7+ years of experience in mobile apps and game development. He also has strong skills with web development and desktop apps.

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RetrofitJavaJavaScriptAndroid SDKCorona SDKAndroid APISQLiteButterknifeAndroidAlgorithmsMobile App DevelopmentPythonAngular

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Trustpilot
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
Building a cross-platform app to be used worldwide
Thierry Jakicevic
Building a cross-platform app to be used worldwide
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Creating an app for the game
Conor Kenney
Creating an app for the game
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Leading a digital transformation
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Leading a digital transformation
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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 start up, they are our secret weapon.

Brantley Pace, CEO & Co-Founder

Tripcents

In addition to sharp technical skills, Faruk had a great attitude and is a really exceptional communicator. He always let us know where he was with his work, thoroughly and reliably. That's not always the case, and it made working remotely considerably easier. He was an easy integration into the team.

Leif Abraham, Co-Founder

AND CO Ventures Inc

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

How to Hire Retrofit Developers through Toptal

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work 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 Retrofit developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How are Toptal Retrofit developers different?

    At Toptal, we thoroughly screen our Retrofit developers to ensure we only match you with talent of the highest caliber. Of the more than 100,000 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. Start now.

  • Can I hire Retrofit developers in less than 48 hours through Toptal?

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

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

    We make sure that each engagement between you and your Retrofit 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. Start now.

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 in under 2 weeks 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 Retrofit Developers are in High Demand.

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