Hire the Best Open Source Developers Near Chicago

Toptal is a marketplace for top remote Open Source developers. Top companies and start-ups in Chicago choose Toptal Open Source freelancers for their mission-critical initiatives.

No-Risk Trial, Pay Only If Satisfied.

Hire remote Open Source developers near Chicago or in a similar time zone

Shane Freed

Freelance Open Source Developer
United StatesToptal Member Since April 9, 2021

Shane is a Java developer with 25 years of experience building enterprise apps and specializes in writing maintainable, extensible, SOLID code. While 95% of Shane's experience is in the Java realm, his passion is full-stack development with Angular. Shane's served in many different roles, including architect, team lead, lead developer, and individual contributor. While Shane doesn't always have to lead a project, his USMC background makes him perfect for lead roles and mentoring.

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Marius Ducea

Freelance Open Source Developer
United StatesToptal Member Since July 24, 2020

Marius is an accomplished DevOps engineer with 10+ years of experience designing and implementing automated, secure, and reliable systems for companies such as AdMob, Thumbtack, and Zillow. He specializes in DevOps culture building through build, package, and release automation; infrastructure coding on AWS; Kubernetes; Terraform; and configuration management, monitoring, and instrumentation.

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Peter Goldstein

Freelance Open Source Developer
United StatesToptal 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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Christos Paschalidis

Freelance Open Source Developer
MexicoToptal Member Since October 25, 2022

Christos is a full-stack developer with more than eight years of hands-on experience. He has a strong background in various industries, especially healthcare and education. He has had clients across the EU and the US. Christos specializes in TypeScript, React, and Next.js on the front end, while on the back end, he works mainly with Node.js, Express.js, Nest.js, and Python/Django. When it comes to cloud providers, he is skilled in Azure and GCP.

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Draco Li

Freelance Open Source Developer
CanadaToptal Member Since April 14, 2020

Draco is a seasoned lead engineer with over 12 years of extensive full-stack experience in various industries, including online retail, web3, and AI insurance. As a founding engineer at Dots, Draco spearheaded the launch of highly acclaimed iOS apps, TwoDots (50+ million downloads) and Dots & Co (1.5+ million downloads within two days). He also served as the engineering lead at Loose Button, where he launched an online advertising network that grew to over $1 million in sales in three months.

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Suhail Singh Bains

Freelance Open Source Developer
CanadaToptal Member Since October 6, 2020

Suhail is a talented MuleSoft professional passionate about updating, refreshing, and modernizing legacy architecture. He developed a safety app that sends information to the local police with the touch of a button, providing a link to the IMEI number for tracking and a timestamp of the location. Suhail has contributed to MuleSoft documents and communities, giving countless presentations and talks on Azure, GitHub, and MuleSoft, inspiring others to work with MuleSoft and Salesforce technologies.

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Daniel Schaefer

Freelance Open Source Developer
United StatesToptal Member Since November 5, 2022

Daniel is a software engineer with 17+ years of experience specializing in implementing DevOps. As part of an engineering team, he enjoys developing applications while owning code, tests, builds, deployments, infrastructure, and monitoring. Daniel believes in scalable, reliable, testable, and maintainable code.

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Mohideen Kader

Freelance Open Source Developer
United StatesToptal Member Since May 4, 2017

Mohideen is a motivated technical lead, analyst, and architect in various phases of complete SDLC: web, open source, OLTP, business intelligence, ETL, cloud, and product development. He has developed for companies in diverse industries, such as the government, elections, CRM, eCommerce, finance, big data, health care, biotech, HIPAA, survey, auto, federal and social networks.

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Matt Carroll

Freelance Open Source Developer
United StatesToptal Member Since February 16, 2015

Matt is a Flutter educator and developer who worked on the Flutter team at Google for two years. Presently, Matt works as an independent contractor for proprietary Flutter development. Matt also leads a team called the Flutter Bounty Hunters, which works exclusively on open source Flutter and Dart packages. Their flagship package is Super Editor.

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Dmitriy Temesov

Freelance Open Source Developer
United StatesToptal Member Since March 10, 2020

Dmitriy is an entrepreneurial and technical leader with a hands-on record of successfully designing and developing high tech products and improving operations and procedures to drive revenue and efficiency. He has over 20 years of direct experience architecting, designing, developing, and deploying web-based multi-tier, client/server apps. His expertise spans the entire development lifecycle—deployment, support, and maintenance—and full-stack development.

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Aurélien Stébé

Freelance Open Source Developer
GuadeloupeToptal Member Since April 29, 2022

Aurélien is a creative software engineer with a strong focus on AI and web technologies. With over 20 years of experience, he has led major projects and developed innovative solutions in various ecosystems. His recent work includes an Obsidian AI chatbot plugin and a unique JavaScript front-end framework. With a background in Java, Linux server DevOps, a deep understanding of the web platform, and multiple tech stacks, Aurélien handles all aspects of software engineering from design to delivery.

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Toptal in the press

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Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
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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 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 Open Source Developers Near Chicago

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 Open Source developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

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.

Featured Toptal Open Source Publications

Top Open Source Developers are in High Demand.

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