Hire the Top 3% of Freelance x86 Assembly Developers

Toptal is a marketplace for dedicated x86 Assembly developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal x86 Assembly freelancers for their mission-critical development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance x86 Assembly Developers and Engineers

Eliran Ben Ezra

Freelance x86 Assembly Developer
United StatesToptal Member Since July 27, 2016

Over a twenty-year career that started when he was fourteen years old, Eliran has done most of his work in the gambling industry, where he designed and developed games, electronic circuit boards and their firmware, device drivers, management web sites, and interconnected systems.

Show More

Ben Gras

Freelance x86 Assembly Developer
NetherlandsToptal Member Since January 18, 2016

Ben is a very capable and expert C programmer. He has significant experience in architecting, programming, testing, optimizing, debugging, maintaining, and integrating C at every abstraction level; primarily systems software. He has a broad knowledge of systems security, cryptographic algorithms, and protocols. He is very familiar with the internal details of multiple and highly different operating systems (BSD, Minix, and RTEMS).

Show More

Stephen Villee

Freelance x86 Assembly Developer
United StatesToptal Member Since January 8, 2016

Stephen has been a software engineer for over 30 years. From developing software for the Unix platform in the 1980's to producing enterprise-level financial and eCommerce software on PHP, JS, and the C language family, he prides himself on being meticulous and developing high quality software. He is a dedicated, efficient individual and a great communicator, and looks forward to contributing valuable skills to your project!

Show More

Dave Poirier

Freelance x86 Assembly Developer
CanadaToptal Member Since September 21, 2017

Since 2010, Dave has been working full-time as an iOS developer in Objective-C and Swift. Dave also has 20 years of experience in software development specializing in Assembly (Intel) and C. Throughout the years, Dave's had the opportunity to work on many software development projects in a myriad of software languages.

Show More

Marcin Sterkowiec

Freelance x86 Assembly Developer
PolandToptal Member Since October 6, 2023

Marcin is an experienced software developer with over 15 years devoted to C++ programming—he started from C++98 and moved comfortably through C++11 up to C++17. He specializes in multithreaded data processing optimized for speed, including high-frequency trading (HFT) and robust multithreaded engines. In his free time, Marcin is devoted to creating a program to solve complex chess problems.

Show More

Rafal Grzech

Freelance x86 Assembly Developer
PolandToptal Member Since June 22, 2022

Rafal is a seasoned IT security specialist with extensive experience dealing with information security, management systems, risks, and compliance in challenging business environments. He combines solid technical knowledge with excellent strategic thinking, analytical, leadership, and managerial skills to match technology and business accurately. Rafal excels in delivering extensive and challenging programs for big organizations.

Show More

Topan Vlad Ioan

Freelance x86 Assembly Developer
RomaniaToptal Member Since December 5, 2018

Since 2006, Vlad has been working in data security mainly analyzing virus samples and designing automated malware analysis systems. He's also spent several years working in the Proactive Kernel Research team building x86 and ARM Hypervisors at Bitdefender. Vlad has a thorough understanding of system programming and OS internals (Windows and Linux) and network security, and experience in programming at all levels from Assembly to Python.

Show More

Zlatko Karakas

Freelance x86 Assembly Developer
SerbiaToptal Member Since January 19, 2021

Zlatko is a senior C++ developer with experience in writing cross-platform desktop applications and 2D games, as well as occasional excursions in web development, which come in handy for integrating client/server software. His work often included dealing with various issues ranging from concurrency and multi-threading to UI/UX. Projects requiring reverse engineering and code optimization skills pique his interest.

Show More

Jan Kratochvíl

Freelance x86 Assembly Developer
Czech RepublicToptal Member Since September 9, 2021

Jan is a back-end developer with 20+ years of experience, specializing in server-side code in C++11 (and higher) and previously in building C++ debuggers and Linux dev tools. He is an expert in DWARF debugging format and has been fixing large codebases such as LLDB and GDB debuggers. Jan's experience spans Interactive Brokers C++ API; disassembling and reverse engineering; and troubleshooting, programming, and configuring networks, embedded devices, Linux servers, RHEL, CentOS, and Fedora.

Show More

Milan Senesi

Freelance x86 Assembly Developer
Czech RepublicToptal Member Since December 19, 2022

Milan is a seasoned senior software engineer with 14+ years of professional experience. He has successfully navigated a diverse range of work environments, including small firms and major tech corporations such as Microsoft, Google, and IBM. Additionally, he has contributed his expertise to high-frequency trading firms like Virtu and DRW. Currently, Milan is the lead developer in charge of a perpetual futures exchange at Enclave Markets.

Show More

Russell Stuart

Freelance x86 Assembly Developer
AustraliaToptal Member Since December 2, 2021

Russell has enjoyed solving complex problems using software and hardware for decades. He paid his way through university, writing accounting systems for hospitals. Russell then formed a company to develop cash registers, writing the BIOS, the operating system, a distributed database, and networking. After selling the firm, he discovered the open-source and used it to build a computer system covering 20 sites across Australia for a firm that grew into the world's largest employer of mechanics.

Show More

Discover More x86 Assembly Developers in the Toptal Network

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
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
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


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


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


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


How to Hire x86 Assembly 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 x86 Assembly developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

Work with your new x86 Assembly developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.


  • How are Toptal x86 Assembly developers different?

    At Toptal, we thoroughly screen our x86 Assembly 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 x86 Assembly developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a x86 Assembly developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal x86 Assembly developers?

    We make sure that each engagement between you and your x86 Assembly 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 x86 Assembly Developers Are in High Demand.

Start Hiring