Toptal Developer Skills Directory

The Toptal network includes experts across a very wide array of software development languages and technologies. See the list below to browse freelance developer profiles with your desired skill.

Browse Toptal Developer Profiles

Check out some of our top developers

Jose Miguel Arreola, Developer for hire
View Jose

Jose Miguel Arreola

Mexico
Toptal Member Since August 13, 2019

Jose is a software architect and developer with desktop, web, mobile apps, and big data expertise. He worked at billing for Microsoft using Azure, power apps, flows, and the big data platform, one of the world's biggest clusters. He co-founded a last-mile delivery app called Encalientes that connects restaurants with customers and drivers. Jose's contributions to the app were critical for it to reach over 60,000 active users and become operational in four cities.

Show More
C#TypeScriptAzurePowerApps
Keith Zimmerman, Developer for hire
View Keith

Keith Zimmerman

United States
Toptal Member Since November 30, 2014

Keith is an experienced architect, developer, and modeler with superb communication skills and the ability to see a project through from beginning to end. He is equally comfortable with the rapid prototyping needs of startup companies and the Agile development workflow in larger teams.

Show More
PythonTypeScriptDatabaseFront EndAWSAgile DevelopmentMySQLReact.jsGrailsMongoDBSQLMEAN StackNode.js
Elijah Windsor, Developer for hire
View Elijah

Elijah Windsor

United States
Toptal Member Since February 10, 2014

Elijah builds and rescues consumer mobile apps in React Native — the kind people open every day, where reliability at scale is the business model. Apps he's built or taken over have passed 5+ million downloads and hold 4.5–4.9 stars across 237,000+ ratings. Elijah built KashKick's app, which paid out $18.9 million to users in 2025, and rearchitected a stalled Imagine Golf build to 4.9 stars. Teams usually bring him in when a production app is in trouble.

Show More
FirebaseReact.jsLodashReduxReact NativePHPNode.jsCSSTwitter BootstrapjQueryiOSMeteorXcode

Toptal Connects the Top 3% of Freelance Talent All Over The World.

Join the Toptal community.

Hire a Top Developer or Apply as a Developer