Hire the Top 3% of Freelance RTP Developers

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

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance RTP Developers and Engineers

Zoltán Tóth

Freelance RTP Developer
GermanyToptal Member Since May 20, 2021

Zoltán is a software engineer with over 20 years of professional experience overall, with 15 of them in mobile telecommunications and automotive. He's skilled in modern C++, Linux, client-server protocols of LTE (SIP, RTP), embedded development, AUTOSAR, test automation, and continuous integration. Zoltán has two masters' degrees (in CS and computational engineering), and he focuses on the quality and reliability of his deliveries.

Show More

Igor Mandrigin

Freelance RTP Developer
SwedenToptal Member Since August 7, 2020

Igor is a senior full-stack software developer with over 13 years of experience building mobile apps and mission-critical cloud services with millions of users for clients including Opera and Ethereum Foundation. He has developed apps and services that are primarily used by people in developing countries (Asian, African countries, India, and Indonesia), including work with CJK languages. He uses secure development practices to build fintech services and make them PCI-DSS compliant.

Show More

Fabrice Triboix

Freelance RTP Developer
United KingdomToptal Member Since September 6, 2017

Fabrice is a DevOps engineer with extensive experience with AWS, Kubernetes, and Terraform. He is very keen on automation using CI/CD and infrastructure as code and employing the simplest solution to complex problems. He worked for clients such as Cisco, Topps, MyDocSafe, Armedia, HMRC, UK Home Office, and medium-sized companies and startups. Fabrice's greatest joy is to see his work actually being used in production and making a positive impact on his client's business.

Show More

Camille Potard

Freelance RTP Developer
FranceToptal Member Since February 23, 2021

Camille is a senior software developer with 20 years of experience building desktop applications for notable clients, such as E-on software, Hitachi, and Alstom. His primary expertise includes C, C++, Python, and real-time technologies with 3D software, in railway, power, video, imaging, and web domains. Camille thrives in remote environments with small or medium-sized teams.

Show More

Zach Efrati

Freelance RTP Developer
United StatesToptal Member Since March 13, 2019

Zach has 15+ years of experience as an individual contributor, team leader, and engineering director, combined with product management experience. He's well versed with numerous platforms, frameworks, and programming languages including, but not limited to AWS, ML, Node.js, Python, and much more.

Show More

Henrique Diniz Silva

Freelance RTP Developer
BrazilToptal Member Since April 6, 2020

Henrique is a natural problem solver, so he’s continuously learning and contributing in a significant way. He’s worked on Java apps for SIM cards and credit cards, kernel drivers along with OS development for LG’s Android phones, C/C++ apps using SoC modems for 3G/4G networks. Henrique has also worked on networking at the kernel using the Android network stack (TCP/IP, HTTP, and other protocols), web apps using React, Vue.js, and Backbone.js, and built back-end apps with Java, Kotlin, and Go.

Show More

Diego Alfarache

Freelance RTP Developer
United StatesToptal Member Since June 7, 2023

Diego is a seasoned software engineer specializing in mobile apps and embedded projects, with a knack for resurrecting troubled projects. He has excellent communication skills, significant customer-facing experience, and top-notch programming, debugging, and technical skills. With hands-on leadership and a passion for creating great products and teams, Diego brings 20 years of experience building software solutions for consumer electronics, medical, scientific, and enterprise communities.

Show More

Pavel Emeliyanenko

Freelance RTP Developer
GermanyToptal Member Since May 20, 2020

With a PhD in Computer Science (summa cum laude) from Max-Planck Institute for Informatics in Germany, Pavel has a solid background in math and algorithm development. Throughout his professional career as a C++ software engineer, he has had a chance to work with different technologies including scientific computing, embedded software development, on-board car navigation, medical image processing, computer graphics, parallel computing, GPGPU, and IP network cameras development.

Show More

Youcef Boukandoura

Freelance RTP Developer
AlgeriaToptal Member Since October 31, 2019

With a master's degree in network and distributed systems, experience in mobile development, and the spirit to always learn more, Youcef has the skills to develop your mobile application to fulfill your needs. He always aims to be more efficient and deliver high-quality work.

Show More

Arvind Umrao

Freelance RTP Developer
IndiaToptal Member Since March 15, 2024

Arvind is a senior engineer with 20+ years of experience in audio/video streaming, digital signal processing, C/C++, Python, and MATLAB. He has worked in the US and Canada and with companies like Johnson Controls, Cisco, Sun Microsystems, Oracle, Samsung, Intel, Motorola, Autodesk, and HP. Arvind is currently associated with startups, also contributing expertise in U-Boot, the Linux kernel, AI, deep neural networks, AR/VR, the MIPS microprocessor architecture, and advanced RISC machines.

Show More

Pawel Jasinski

Freelance RTP Developer
United KingdomToptal Member Since May 12, 2021

Paweł is a software engineer with over a decade of experience working for a range of companies including innovative global leaders in 5G, networks, and phones like Nokia. He’s an expert in LTE and other mobile communication standards. Paweł is passionate about programming, system design, and sharpening his skills in algorithmic task solving and competitive programming competitions. On any project, you can trust Paweł to deliver quality code and improve the codebase.

Show More

Discover More RTP Developers in the Toptal Network

Start Hiring
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
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 RTP 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 RTP developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How are Toptal RTP developers different?

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

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

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

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

Start Hiring