Hire the Top 3% of Freelance Authentication Experts

Toptal is a marketplace for dedicated Authentication Experts. Top companies and startups choose Toptal Authentication freelancers for their mission-critical Authentication development projects.

No-Risk Trial, Pay Only If Satisfied.

Clients Rate Toptal Authentication Experts4.9 / 5.0on average across 819 reviews as of Jun 15, 2024

Hire Freelance Authentication Experts

Peter Goldstein

Freelance Authentication Expert
United States
Toptal Member Since March 11, 2022

Peter is a hands-on developer, architect, CTO, and technical founder passionate about using best practices to quickly build high-quality products. He has over 20 years of experience building full-stack applications. Peter specializes in Ruby on Rails and Go but is a software generalist who is comfortable working in many languages. He is a committed open-source enthusiast who leverages open source to reduce both the cost and time needed to build the products and features he creates.

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Charles Grady

Freelance Authentication Expert
United States
Toptal Member Since September 26, 2022

Charles is primarily a back-end developer specializing in Python. He has more than 16 years of experience developing RESTful APIs, high-throughput computations, and cluster interfaces in an open source environment. Charles published papers, gave conference presentations, and taught domestic and international workshops showcasing the tools he created, the community infrastructure, and his research projects.

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Robert Lehmann

Freelance Authentication Expert
Germany
Toptal Member Since September 13, 2022

Robert is a passionate gamer, experienced director of engineering, and blockchain enthusiast with 10+ years of professional experience and a bachelor's degree in game design. He has developed two multimillion-dollar-grossing games in Unity3D, published on Google Play and the App Store: Solitaire Showtime and Mahjong City Tours, which has over 25 million downloads. Robert has also developed unique smart contracts and dApps across different blockchains.

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Sean Zeng

Freelance Authentication Expert
New Zealand
Toptal Member Since July 16, 2020

Sean is a software architect from New Zealand specializing in full-stack development with a strong focus on usability, security, and simplicity. He's built business applications, streamlined development with DevOps pipelines, and delivered latency-sensitive architecture. With a passion for software, he excels at providing reliable management and great ideas. Sean enjoys working with brilliant, humble people who aren't afraid to tackle challenges and take the initiative to create excellence.

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Marcos Henrique da Silva

Freelance Authentication Expert
Italy
Toptal Member Since February 25, 2017

Marcos is passionate about full-stack development, REST architecture and Agile methodology, and JavaScript as his primary programming language. Marcos has been working with IT since 2003, and for the past few years, he's been working nearly exclusively with software engineering and focusing on web applications. Marcos specializes in JavaScript, using SPA frameworks like AngularJS, Angular, React, and Node.js for back-end development. Marcos has also worked with native Android apps and PHP.

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Roman Imankulov

Freelance Authentication Expert
Portugal
Toptal Member Since March 15, 2021

Roman is a passionate software developer with 16 years of hands-on and team management experience. He's intimately familiar with the Python ecosystem and the development of scalable systems for the web. Remote worker since 2012, he's a proponent of no-surprise proactive communication style, blameless culture, and human-centric processes and workflows. Roman is also a conference speaker and organizer.

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Michal Kolodziejczyk

Freelance Authentication Expert
Poland
Toptal Member Since September 30, 2022

Michal is a software developer with 22 years of experience in programming with C# and 26 years of IT experience. He is most valued for professionalism, ease of sharing knowledge, testing his solutions, and openness to new ideas and programming methods. Michal's experience with Raiffeisen and Citi gave him a solid financial background needed for demanding projects.

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Mohammed Osman

Freelance Authentication Expert
Sweden
Toptal Member Since June 29, 2022

Mohammed has confidently led a highly skilled team of .NET developers in transforming a large-scale system, leveraging cutting-edge technologies to revolutionize its performance and capabilities. We transitioned the system from outdated technologies to .NET Core, migrated the database from DB2 to SQL server, and modernized the API architecture by replacing SOAP with REST APIs. These strategic upgrades resulted in a significant boost in efficiency, scalability, and overall system performance.

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Stuart Jones

Freelance Authentication Expert
United Kingdom
Toptal Member Since August 5, 2022

Stuart is a React Native developer with over a decade of experience building hybrid mobile applications for iOS and Android. He specializes in delivering apps across various industries at global organizations, scaleups, and startups while setting and achieving realistic deadlines. He launched a software development consultancy in 2018, advising and building mobile apps for companies such as Nando's and Perkbox. Stuart enjoys working on exciting React Native projects with international clients.

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Gilmar Rocha

Freelance Authentication Expert
Brazil
Toptal Member Since November 7, 2022

Gilmar is a cybersecurity specialist passionate about software development and security. He focuses on the software development lifecycle, including analysis, design, development, testing, and maintenance, because it gives him a clearer view of security issues. As a result, Gilmar knows how to help teams solve these issues.

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Dovydas Navickas

Freelance Authentication Expert
Lithuania
Toptal Member Since January 28, 2022

Dovydas is a full-stack software architect with 14 years of experience building scalable systems and has experience with fintech, telco, pension funds, media, and hospitality businesses. He specializes in C# .NET and Node.js on the back end and React and TypeScript on the front end. Dovydas worked as a CTO and architect for several companies, steered technological direction, introduced automated DevOps processes, and moved large-scale projects to public and private clouds.

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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
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

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 Authentication Experts 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 Authentication Expert for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How are Toptal Authentication Experts different?

    At Toptal, we thoroughly screen our Authentication Experts 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 Authentication Experts in less than 48 hours through Toptal?

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

  • What is the no-risk trial period for Toptal Authentication Experts?

    We make sure that each engagement between you and your Authentication Expert 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 Authentication Experts Are in High Demand.

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