Hire the Top 3% of Freelance Operating System Developers

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

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Operating System Developers and Engineers

Alejandro Medina

Freelance Operating System Developer
CanadaToptal Member Since December 19, 2022

Alejandro has over a decade of professional experience in DevOps, automation, and the development of custom software lifecycles. He started his career as a developer, but at some point began working with Linux and became its fan. Skillful in software development, operating systems, and infrastructure, Alejandro knows to troubleshoot issues and find optimal solutions to problems. He graduated as an information systems engineer in 2002.

Show More

Anthony Murphy

Freelance Operating System Developer
United StatesToptal Member Since August 18, 2023

Anthony is a seasoned professional with 30+ years of technology management experience. He has worked as a CIO, IT director, and enterprise architect in global projects and large initiatives across industries. With a solid background in providing direct consultancy and IT management, Anthony presents an outstanding blend of business and technology expertise. He excels in converting corporate intent into action, covering all aspects, from project architecture through implementation and completion.

Show More

Jens Stimpfle

Freelance Operating System Developer
GermanyToptal Member Since September 3, 2017

Jens writes programs that are maintainable and at the same time effortlessly performant. He has experience writing GUI and 3D applications, multithreaded and networked systems, as well as compilers. He prefers working with C, although he has a solid proficiency in many programming languages such as C++ and Python. Jens has a solid Unix and Linux background and is currently at home both on the Win32 and Linux platforms.

Show More

Alexandru Dochian

Freelance Operating System Developer
RomaniaToptal Member Since October 31, 2022

Alex is a software engineer with proven industry records in web development. He is most comfortable using Python/FastAPI, Java/Spring, and PostgreSQL. Alex is passionate about expanding his knowledge and providing solutions to challenges in web technology, cloud computing, and artificial intelligence.

Show More

Gökhan Gököz

Freelance Operating System Developer
TurkeyToptal Member Since May 3, 2022

Gökhan has over 15 years of implementation experience in identity management, middleware, and security solutions. A hard-working and determined professional, he works with different products in a process-oriented manner and adapts quickly. During his career, Gökhan has gained both short and long-term contract-based experience working with various customers and in different sectors. With his vast experience, he will be a great addition to any team.

Show More

Muhammed Kadir Yücel

Freelance Operating System Developer
TurkeyToptal Member Since June 8, 2022

Muhammed is a blockchain developer with eight years of experience working remotely. He is passionate about conducting research and sharing knowledge during the process. As a team leader, he worked at the national research center on ARINC 653 compatible RTOS, designing and developing several parts. Muhammed specializes in D programming language used in distributed systems and blockchain platforms.

Show More

Roy Mahfooz

Freelance Operating System Developer
PakistanToptal Member Since September 7, 2022

Roy is a PHP and WordPress expert with 6+ years of experience in web development. He is a straightforward, disciplined developer who enjoys his work and likes challenges. He is very good at delivering high-quality work on time and within budget. He worked onsite and remotely with individual clients and small and large teams, successfully delivering outstanding work in the last eight years.

Show More

Ishan Madhusanka

Freelance Operating System Developer
Sri LankaToptal Member Since January 8, 2019

Ishan, a technical lead, blends his passion for UI/UX design and user research skills to create visually stunning and functional designs, enhancing user experiences. He's a skilled full-stack developer with a background in computer engineering. Ishan established best practices in CI/CD and contributed to projects from the design/prototype phase, supporting teams across their development stack.

Show More

Kartal Kaan Bozdoğan

Freelance Operating System Developer
GermanyToptal Member Since June 23, 2022

Kartal is a back-end-heavy developer with experience at various companies of different scales and cultures. He is currently working as a software developer in a Munich-based company and writing his master's thesis in informatics at the Technical University of Munich. Kartal's other interests are high-performance computing, computer security, and artificial intelligence.

Show More

Gabriel Francisco

Freelance Operating System Developer
GermanyToptal Member Since February 3, 2016

Since 2008, Gabriel has worked with GNU/Linux on bare-metal, virtual machines, and containers across different providers for businesses such as large scale and high traffic API/websites/portals, eCommerce and marketplaces, mailing systems and payment platforms. Gabriel excels at solving problems using Linux.

Show More

Łukasz Grzela

Freelance Operating System Developer
PolandToptal Member Since July 27, 2021

Łukasz is a customer-focused and goal-oriented IT professional working for both well-established, tier-1 global financial institutions, as well as fast-paced fintech startups. He has 15 years of experience building large, mission-critical systems for the financial sector—specializing in electronic trading, market data, banking, and securities exchange systems. Łukasz has managed large and small teams at several firms and is keen to work both as part of a group and individually.

Show More

Discover More Operating System 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 Operating System 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 Operating System developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How are Toptal Operating System developers different?

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

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

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

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

Start Hiring