Hire Freelance Open Source Developers and Engineers
Maxim Gladkov
Freelance Open Source Developer
Maxim is a tech-savvy geek with rich experience in the business. He has vast experience as a senior software engineer and architect and a strong knowledge of JavaScript, Node.js, React, Ruby, Ruby on Rails, Neo4j, MySQL, and PostgreSQL. An Agile enthusiast, tech consultant, and startup founder, Maxim focuses on a range of core competencies, such as software development, software architecture, database design, tech consulting, and business automation. He will be a strong addition to any team.
Show MoreSamuel Lock
Freelance Open Source Developer
Samuel is an AWS-certified senior engineer specializing in serverless development and DevOps/platform engineering on AWS. He has experience delivering serverless REST APIs and data-ingestion pipelines, all powered by AWS Lambda. He has also worked in a DevOps role and considers himself an AWS CloudFormation, CI/CD, and automation expert. Samuel has a background in two early-stage startups, one of which handled medical data.
Show MoreErik Arakelyan
Freelance Open Source Developer
Erik is an ML researcher currently pursuing a PhD in machine learning at the University of Copenhagen (UCPH), specializing in topics of NLP, Knowledge Graphs optimizations, and explainability in NLP. He is looking for opportunities to apply his deep learning and software engineering skills in an exciting and challenging project.
Show MoreAlessandro Pedori
Freelance Open Source Developer
Alessandro is a full-stack AI, NLP, and ML engineer, consultant, and architect with several years of experience teaching AIs what to do and building the code around it, mainly in Python. He also loves helping people understand the limits of current systems, triaging what to implement first, building code, teaching, consulting, mentoring, and coaching. Above all, Alessandro is passionate about how technology can empower humans to shine.
Show MoreSylvain Vittecoq
Freelance Open Source Developer
Sylvain's been a CTO, engineering manager, and senior software engineer in the US and Europe. He is a very hands-on, result-oriented expert in Java and solution definition and can work with anyone from engineers to C-level execs. Sylvain's delivered nationwide security infrastructures for millions of devices and connected millions of eCommerce users. Sylvain founded FileChain to offer next-generation blockchain platforms for large-scale Web 3.0, Industry 4.0, and NFT decentralized marketplaces.
Show MoreErdinc Mutlu
Freelance Open Source Developer
Erdinc is a software engineer with 24 years of experience and extensive software and systems development skills in multinational companies. He has solid knowledge of the back end, fintech, payment systems, cryptocurrencies, AWS, GCP, test automation, and digital communication systems. He is highly proficient in Go, Python, ANSI C, C++, test automation, embedded systems, device drivers, Linux, and real-time operating systems. Erdinc is proactive, highly organized, and self-motivated.
Show MoreViktor Petukhov
Freelance Open Source Developer
Viktor holds a PhD in biostatistics, during which he developed eight open-source packages used by thousands of researchers worldwide. He also worked as a data science team lead and an independent AI consultant, translating business needs into technical terms. Combining scientific and enterprise experience, Viktor can support companies on the full spectrum, from formulating a business problem to building a production-ready AI solution.
Show MoreIvan Voras, PhD
Freelance Open Source Developer
Ivan has a Computer Engineering PhD. He has worked as a CTO and a system architect, founding multiple projects and businesses. He has experience architecting and implementing server-side solutions, including distributed platforms, such as blockchains, chat servers, and game back-ends. He helped establish the Toptal blockchain specialization, served as a tech screener, and lectured for Toptal Academy.
Show MoreStepan Birukov
Freelance Open Source Developer
Stepan is a site reliability engineer focusing on Linux automation, open source, and security. He has 7+ years of experience managing mission-critical Linux−based server clusters and network equipment. As an operations engineer, Stepan excels in Unix−based server platforms, internal Linux−based operation systems, Linux kernel, AWS services, and Google Cloud Platform.
Show MorePeter Goldstein
Freelance Open Source Developer
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.
Show MoreShivam Singh
Freelance Open Source Developer
Shivam is an accomplished technology leader with a proven track record of leading teams and building complex, large-scale distributed systems. He is an expert in scalability, performance, web applications, real-time systems, distributed systems, and fintech. Shivam led teams of 28 and increased the user base by shipping new products and experiments. Strong communicator and leader, able to mentor and coach other engineers.
Show MoreSign up now to see more profiles.
Start Hiring