Christopher J. Stobie
Verified Expert in Engineering
Senior Software Developer
Previously at
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Sergey Makarov
Verified Expert in Engineering
13 Years of Experience
Appian Developer
Sergey is a senior software developer with 25+ years of experience. For over 15 years, he served as a .NET developer working with SQL Server and Oracle back end. In 2012 he switched to the Salesforce platform, acting as a senior Salesforce developer on many projects for various clients across Canada and the US. Sergey has experience with Sales Cloud, Service Cloud, Apttus CPQ, B2B eCommerce (CCRZ), and Salesforce CPQ.
AppianSQLVisualforceSalesforce DevelopmentApex
Ida Bucić
Verified Expert in Engineering
16 Years of Experience
Appian Developer
Ida is a senior developer with more than 10 years of experience in Java and wide range of related technologies. She has participated in multiple successful projects, mainly large-scale, multi-tiered, Java web business applications. She enjoys the entire development process, creating something new and valuable from nothing more than an idea or a client's need.
AppianJavaJava EESQLBack-end Developers
Serafeim Papastefanos
Verified Expert in Engineering
14 Years of Experience
Appian Developer
Serafeim is a software engineer with over a decade of professional experience and a Ph.D. in electrical and computer engineering. Serafeim is systematic and methodical with a lot of enthusiasm (and patience) when solving interesting, complex problems. His areas of expertise are with C, Java, Python, JavaScript, and a variety of frameworks (Django), libraries (jQuery), and platforms (Android, Linux RHEL/CentOS).
AppianPythonDjangoAndroidJavaCElixirJavaScriptSQLLinuxjQueryWeb ScrapingBack-end Developers
João Fernandes
Verified Expert in Engineering
7 Years of Experience
Appian Developer
João is a resourceful software engineer passioned about keeping up with the latest technologies and trends. Having experience in developing and maintaining live process management applications for major insurance and financial companies, João is now focused on working with frameworks such as React and Node.js in the development of web applications to solve real-world problems.
AppianJavaScriptHTML5CSSNode.jsPostmanReact.js
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Excellent technical communication
Toptal developers must possess strong written and verbal communication skills. They work effectively across multiple collaboration tools and convey complex engineering ideas and concepts with ease.
7.4%Pass Rate
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Each developer is required to demonstrate their computer science fundamentals, problem-solving ability, and technical aptitude to a panel of leading experts.
3.6%Pass Rate
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Toptal developers are skilled at tackling roadblocks creatively and independently. Each candidate is live-screened by two top developers where they have to offer multiple paths to the solution and make decisions on the spot.
3.2%Pass Rate
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3%Pass Rate
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Toptal gave us access to the best designers out there, saving us a lot of time and allowing us to build the best possible product.
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Toptal’s talent is really excellent. They are able to work through large business problems and code incredibly efficiently.
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The kind of people we looked for were hard to find. Toptal helped us achieve our goals by bringing high quality resources to bear on very short notice.
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