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
- 3D Modeling Software
- ABAP
- Abaqus Experts
- A/B Testing
- Access API
- Accessibility Engineers
- ActionScript
- Ada
- ADF
- ADK
- AdMob
- Adobe Software Engineers
- Adobe Air
- Adobe CQ
- Adobe Flex
- Adobe InDesign
- ADO.NET
- Agavi
- Agile
- Agile QA Engineers
- Agora
- Airbnb
- Airtable
- Ajax
- Akka
- Alexa
- Algolia
- Algorithm Developers
- Altcoin
- Altium
- Amazon API
- Amazon Aurora
- Amazon EC2
- Amazon EMR
- Amazon Neptune
- Amazon Redshift
- Amazon S3
- AMPScript
- Analytics
- Android
- Android App
- Android NDK
- Android SDK
- Angular Developers
- AngularJS
- AngularJS Experts
- Animation
- Ansible
- Apache
- Apache Airflow
- Apache Click
- Apache Cordova
- Apache Kafka Specialists
- Apache OFBiz
- Apache Pig
- Apache Shale
- Apache Sling
- Apache Struts 2
- Apache Tapestry
- Apache Tomcat
- Apache Wicket
- Apex
- API
- API Development Specialists
- Apigee
- Apollo
- Appcelerator
- AppExchange
- AppFuse
- Appian
- Appium
- Apple
- Apple Pay
- Apple Watch
- App Store
- ArangoDB
- ArcGIS
- Arch Linux
- ARCore
- Arduino
- ARKit
- ARM
- AI Engineers
- Asana
- ASP.NET
- ASP.NET Dynamic Data
- ASP.NET MVC
- Assembly
- Asterisk
- Augmented Reality Developers
- Aurelia
- Auth0 Developers
- Authorize.Net
- Autodesk Revit
- Automation Developers
- Automation Anywhere Professionals
- AutoML
- AWK
- AWS
- AWS CLI
- AWS Cloud Engineers
- AWS CloudWatch
- AWS Cognito
- AWS DevOps Engineers
- AWS EMR
- AWS Glue
- AWS IAM
- AWS IoT
- AWS Kinesis
- AWS Lambda
- AWS Operations Engineers
- AWS RDS
- AWS Solutions Architects
- Azure
- B2B Developers
- Babel
- Backbone.js
- Back-end Developers
- Bada
- Bamboo
- Banshee
- Basecamp
- Bash
- Batch
- BFC
- BigCommerce
- Big Data Architects
- BigQuery
- Binance API
- Bing Maps
- Bitbucket
- Bitcoin
- Bitcoin Cash
- Bitcoin Experts
- BizTalk
- BlackBerry
- Blazor
- Blender
- Blockchain Developers
- BlueBream
- Bluetooth
- Bokeh
- BoonEx Dolphin
- Boost
- Bootstrap
- Bottle
- Bower Experts
- Box
- BPM
- Braintree
- Brand Developers
- Breeze.js
- Brew
- Brutos Framework
- BuddyPress
- Business Central
- Business Intelligence
- C
- C#
- C++
- Caching
- CakePHP
- Camping
- Canva
- Canvas
- Capistrano
- Capybara
- Carma
- CartoDB
- Cassandra
- Catalyst
- Caveman2
- Celery
- CFWheels
- Chai
- Chart.js
- Chatbot
- ChatGPT
- CherryPy
- Chief Information Security Officers
- Chief Security Officers
- Chromecast
- Chrome Extension Developers
- CI/CD Engineers
- CircleCI
- Cisco Engineers
- Clarion
- ClickFunnels Experts
- Clojure
- Cloud Engineers
- Cloud Architects
- Cloud Cost Reduction Engineers
- Cloudflare Experts
- Cloud Infrastructure Engineers
- Cloud Infrastructure Architects
- Cloud Migration Engineers
- Cloud Security
- Clover
- Clustering
- CMake
- CMS
- C# / .NET
- C++ / .NET
- COBOL
- Cocoa
- CodeDeploy
- CodeIgniter
- CodeKit
- Coders
- Code Review Consultants
- CoffeeScript
- Cognos
- ColdBox Platform
- ColdFusion
- ColdSpring
- Computer Vision
- Confluence
- Consul
- Contentful Developers
- Core Data
- Core Java
- Corona SDK
- Couchbase
- CouchDB
- CppCMS
- CQRS Developers
- Crashlytics
- CRM
- Cross-Platform
- Cryptanalysts
- Cryptocurrency
- Crystal Programming
- Crystal Reports
- CSLA
- CSS
- CSS3
- CSS / JavaScript
- CTOs
- CubicWeb
- Cucumber
- CUDA
- cURL
- C++ / VBA
- Cyber Security
- Cython
- D
- D3.js
- Dagger
- Dancer
- ÐApp
- Dapper
- Dart
- Dashboard
- Data Analysts
- Database Developers
- Database Clustering Consultants
- Database Integration Engineers
- Database Migration Engineers
- Databricks
- Data Definition Languages (DDL)
- Datadog
- Data Engineers
- Data Integration Engineers
- Data Management Engineers
- Data Migration Engineers
- Data Mining
- Data Modeling Experts
- Data Modeling Analysts
- Data Scientists
- Data Scraping Specialists
- Data Visualization Developers
- Data Warehouse
- DB2
- Debian
- Debugging
- Dedicated Developers
- Dedicated Android Developers
- Dedicated Front-end Developers
- Dedicated iPhone Developers
- Dedicated Java Developers
- Dedicated Magento Developers
- Dedicated Mobile App Developers
- Dedicated .NET Developers
- Dedicated PHP Developers
- Dedicated Web Developers
- Dedicated WordPress Developers
- Deep Learning Experts
- DeFi (Decentralized Finance)
- Delphi
- Demandware
- Denodo
- Design Engineers
- DevExpress
- Devise
- DevOps Engineers
- DevSecOps Engineers
- Dev Team Leads
- DirectX
- Discord Bot
- Distributed Ledger Engineers
- Distributed Systems Engineers
- Django
- DNS Experts
- Docker
- DocuSign
- Dojo
- DotNetNuke
- DRF Django REST Framework
- Dropbox
- Dropwizard
- Drupal
- DynamoDB
- eBay API
- Eclipse
- Eclipse RAP
- ECMAScript 6
- eCommerce
- eCommerce Consultants
- EDI
- Ejabberd
- Elasticsearch
- Elastic Stack Developers
- Electron.js
- Elementor
- Elgg
- Elixir
- ELK Stack
- Elm
- Embedded Software Engineers
- Embedded Systems Engineers
- Ember.js
- Enfold WordPress
- Engineering Managers
- Enterprise
- Enterprise Architects
- Episerver
- Erlang
- ERP
- ESLint
- Espresso
- Ethereum
- Ethereum Smart Contract
- ETL
- Evernote
- Excel
- Excel Macro
- Expedia
- ExpressionEngine
- Express.js
- Extended Reality Developers
- ExtJS
- F#
- Fabric
- Facebook Ads
- Facebook API
- Fastlane
- Fat-Free
- Fault Tolerance
- FFmpeg
- Financial Software Developers
- Fintech
- Firebase
- Firefox
- Firestore
- Firmware Engineers
- Fitbit
- Flash
- Flask
- Flex
- Flutter
- Flux
- Force.com
- FormEngine
- Formstack
- Fortran
- FoxPro
- FPGA
- FreeBSD
- Freelance Developers
- Freelance Programmers
- FreeSWITCH
- Friendster
- Front-end Developers
- Front-end Web
- FTP
- FuelPHP
- Full-stack Developers
- Full Stack Java
- Full Stack .NET
- Full-stack Node.js
- Full Stack PHP
- Full Stack Python
- Fusebox
- Game Developers
- Ganache
- GatsbyJS
- GCC
- GCM
- Gentoo
- Gephi
- GIMP
- GIS
- Git
- GitFlow
- GitHub
- GitOps Engineers
- GLSL
- Gmail
- Go Engineers
- GoDaddy Experts
- Golang
- Google Software Engineers
- Google AdWords
- Google Analytics
- Google API
- Google App Engine
- Google Cardboard
- Google Checkout
- Google Cloud
- Google Cloud Platform
- Google Docs
- Google Drive
- Google Forms
- Google Glass
- Google Kubernetes Engine (GKE)
- Google Latitude
- Google Maps
- Google Play
- Google Sheets
- Google Sheets API
- Google Sites
- Google Storage
- Google Web Toolkit
- GPT-3
- Gradle
- Grafana
- Grails
- GraphQL
- Gravity Forms
- Greenplum
- Grok
- Groovy
- Groupon
- gRPC
- Grunt.js
- Gulp Experts
- Hadoop
- HAML
- Hamlets
- Hapi.js
- Happstack
- Haproxy
- Haskell
- Haxe
- Hazaar MVC
- HDFS
- Healthcare Data Scientists
- HealthKit
- Helm
- Heroku
- HFT
- Hi5
- Hibernate
- Highcharts
- Hive
- HTC Vive
- HTML5
- Hubspot
- HubSpot API
- Hugging Face
- Hugo
- Hybrid App Developers
- Hybrid Cloud Engineers
- Hybris
- Hyperledger
- Hyperledger Fabric
- Hyper-V
- iAd
- iBeacon
- IBM Watson Developers
- iCloud
- Identity & Access Management (IAM) Specialists
- IIS
- ImageMagick
- Image Processing Software
- InfluxDB
- Informatica
- Infrastructure Engineers
- Infusionsoft
- Instagram API
- Integration
- Intercom
- IoT Developers
- Ionic
- iOS
- iOS / Android
- iOS App Development Experts
- iPad
- iPhone Developers
- iPhone App Developers
- Iptables
- Istio
- IT
- IT Consultants
- ItsNat
- IT Web
- Jade
- Jamstack
- Jasmine
- JasperReports
- Java
- Java EE
- JavaFX
- Java / Python
- JavaScript
- JavaScript Consultants
- Javascript / React
- Javascript / WordPress
- JavaServer Faces
- JBoss
- JBoss Seam
- JDBC
- Jee
- Jekyll
- Jenkins
- Jest
- JHipster
- Jinja
- JIRA
- JMeter
- JMS
- JNI
- Joomla
- jQuery
- JRuby
- JSON Experts
- JSP
- Jspx-bay
- Julia
- JUnit
- Jupyter
- JVx
- Jython
- Kajona
- Kentico
- Keras
- Keycloak
- Kibana
- Kindle
- Knockout.js
- Koa
- Kohana
- Kotlin
- Kubernetes Experts
- LabVIEW
- LAMP
- Laravel
- Layar
- LDAP
- Leaflet
- Leaner Style Sheets (LESS)
- Leap Motion
- LearnDash
- Lift
- Lightning
- LinkedIn API
- LINQ
- Linux
- Linux CentOS
- Linux System Administrators
- Liquid
- Lisp
- Litecoin
- Lithium
- LMS
- Load Testing Engineers
- Lodash
- Logstash
- Lotus Notes
- Lua
- Lumen
- Mach-II
- Machine Learning Engineers
- MacOS
- Magento
- MailChimp
- Mailgun
- Makefile
- Mapbox
- MapKit
- MapQuest
- MapReduce
- MariaDB
- Marionette.js
- Markdown
- Marketo
- Mason
- Mathematics Experts
- MATLAB
- Maven Experts
- Maya
- Maypole
- MEAN Stack Developers
- Medical Robotics Engineers
- Mega
- Merb
- Mercurial Experts
- MERN Stack
- MetaMask
- Metasploit
- Meteor
- Microcontroller Programmers
- Microservices
- Microsoft
- Microsoft Access
- Microsoft Dynamics CRM
- Microsoft Exchange
- Microsoft Kinect
- Migration Engineers
- Mixed Reality Developers
- Mixpanel
- Mobile Developers
- Mobile App Developers
- Mocha
- Mocha.js
- Model-Glue
- MVVM Experts
- MODx
- Mojolicious
- Moment.js
- Moneybookers
- MongoDB
- Mongoose
- Mono
- MonoDevelop
- MonoGame
- MonoRail
- Moodle
- Moq
- MPI
- MS SQL Developers
- MuleSoft
- Multi-Cloud Engineers
- Multithreading Experts
- Mustache
- MySQL
- Nagare
- Nagios
- NativeScript
- Neo4j
- NestJS
- .NET
- NetBeans
- NetBSD
- .NET Core
- NetSuite
- Nette Framework
- Network Programmers
- Neural Network
- New Relic
- Nexmo
- Next.js
- Nexus
- NFT
- Nginx Experts
- NLP
- Node.js
- Node.js Consulting Specialists
- Node.js / Raspberry Pi
- nopCommerce
- NoSQL
- Notion
- NPM
- NumPy
- Nuxt.js
- OAuth Experts
- Objective-C
- Object-oriented Programming Experts
- OCaml
- Octave
- Oculus Rift
- Odoo
- Offshore Developers
- Offshore Android
- Offshore App
- Offshore iOS
- Offshore Java
- Offshore Magento
- Offshore .NET
- Offshore Node.js
- Offshore PHP
- Offshore Python
- Offshore Ruby on Rails
- Offshore Web
- Offshore Web Design
- Offshore WordPress
- OKTA
- OLAP
- OneDrive
- OpenAI
- OpenAI Gym
- OpenBSD
- OpenCart
- OpenCV
- OpenERP
- OpenGL
- OpenID
- OpenLaszlo
- OpenMP
- OpenRasta
- OpenSocial
- Open Source
- OpenStack
- OpenUI5
- OpenVPN
- OpenWRT
- OpenXava
- Optical Character Recognition
- Oracle
- Oracle ADF
- Oracle Forms
- Oracle SQL
- osCommerce
- OSGi
- Outsourced Developers
- P2P
- Packer
- Padrino
- Pandas
- Pardot
- Parse
- Pascal
- Passport.js
- Payment Processing
- PayPal
- Pebble
- Perl
- pfSense
- Phoenix
- PhoneGap
- PHP
- phpBB
- phpFox
- PHPixie
- PHP / Laravel
- PHP / MySQL
- PhpStorm Experts
- PHPUnit
- PHP Unit Testing
- PHP / WordPress
- Play
- PlayFab
- Play Framework
- Plone
- PL/SQL
- Poco
- Polymer
- POS
- PostgreSQL
- Postman
- PowerApps
- Power Automate
- Power BI
- PowerBuilder
- PRADO
- Preact
- PrestaShop
- Prezi
- Prism
- Prisma
- Product
- Product Architects
- Prolog
- Prometheus
- Prompt Engineers
- Protobuf
- Prototype
- Protractor
- PubNub
- Pug
- Puppeteer
- PureMVC
- Pusher
- PWA
- PyCharm Experts
- Pyjs
- Pylons
- PyObjC
- PyQt
- Pyramid
- Pyspark
- Pytest
- Python
- Python / C#
- Experts in Python Development Services
- Pytorch
- QA Engineers
- QA Analysts
- QA Leads
- QA Managers
- Manual Testers
- QA Specialists
- QA Testers
- Qlik
- QlikView
- QML
- Qt
- Quantitative
- QuickBase
- QuickBooks
- R
- R3 Corda
- RabbitMQ
- Rackspace
- Ractive.js
- Raspberry Pi
- Razor
- RDBMS
- React Hooks
- React.js
- React.js Development Consultants
- React Native
- React / Node.js
- React Web Developers
- Realm
- Recommendation Systems Specialists
- Redis
- Redmine Developers
- Redshift
- Redux
- Redux Saga
- Regex
- Release Engineers
- Remote Developers
- Requests
- RequireJS
- Responsive Web Developers
- REST API
- RethinkDB
- Retrofit
- Riak
- RIFE
- Robotics Engineers
- Roku
- ROS
- RSpec
- RSS
- RStudio
- RStudio Shiny
- RTOS
- Ruby
- Ruby on Rails
- Ruby on Rails Consulting Specialists
- Rust
- RxJava
- RxJS
- RxSwift
- SaaS
- Saetta Web Server
- Safari
- Sage
- SageMaker
- Sails.js
- Salesforce
- Salesforce1 Mobile App
- Salesforce API
- Salesforce Commerce Cloud Developers
- Salesforce Consultants
- Salesforce Lightning
- SaltStack
- SAML
- SAS
- Sass
- SCADA
- Scala
- Scalatra
- Scientific Software Developers
- Scikit-Learn
- SciPy
- SCM Engineers
- Scrapy
- Scrum
- SDETs
- SecOps
- Security Architects
- Security Engineers
- Selenium
- Sencha Touch
- SendGrid
- SendGrid API
- Sendmail
- Senior Android
- Senior Node.js
- Senior Ruby
- Senior Web
- Sentry
- SEO
- Sequelize
- Serverless
- ServiceNow Developers
- SharePoint
- Shell
- Shell Script
- Shopify
- Shopify API
- Shopify Theme
- Sidekiq
- Signal Processing
- SignalR
- Silex
- Silverlight
- SilverStripe
- Simulink
- Sinatra
- Sinon.JS
- Sitefinity
- Site Reliability Engineers
- Site Speed Optimization
- Sketchup
- Skype
- Slack
- Slim
- Smart Contract
- Smarty
- SMS
- SMTP
- Snap
- Snowflake
- SOA
- SOAP
- Socket.IO
- Software Architects
- Software Consultants
- Software Developers
- Software Engineers
- Software Interface
- Solaris
- Solidity
- SOLIDWORKS
- Solr
- Sonarqube
- SOQL
- SourceTree
- Spark
- SPARQL
- Spatial Data Scientists
- Splunk
- Spotfire
- Spotify
- Spree Commerce
- Spring
- Spring Boot
- SpriteKit
- SQL
- SQL CLR
- SQLite
- SQL Server
- SQL Tuning
- Squarespace
- SSH
- SSIS
- SSL Certificate Experts
- SSRS
- Startup
- Stripe
- Stripes
- Struts
- Stylus
- Sublime Text
- Subversion (SVN)
- SugarCRM
- SuiteCRM
- SUN
- Svelte
- SVG
- Swagger
- Swift
- Sybase
- Symbian
- Symfony
- Sys Admins
- System Integration
- System Security Developers
- Systems Engineers
- Tableau
- TACTIC
- Takes
- Talend
- Tcpdump
- Teamcity
- Tech Freelancers
- Technical Lead
- Technical Writers
- Telegram API
- Telerik
- Tendermint
- TensorFlow
- Teradata
- Terraform
- Test Automation Engineers
- Test Automation Architects
- Test-driven Development Experts
- Test Engineers
- Test Software Engineers
- ThinWire
- Three.js
- Thymeleaf
- TIBCO
- Titanium
- Tizen
- Tntnet
- TokBox
- Tornado
- Trading Software
- Trello
- T-SQL
- Tumblr
- TurboGears
- tvOS
- Twig
- Twilio
- Twitter Bootstrap
- TypeScript
- TYPO3
- TYPO3 Flow
- Uber
- Ubuntu
- UDP
- UI
- UIKit
- UiPath
- UI/UX
- UI, UX, and Front-end Developers
- Umbraco
- UML
- Underscore.js
- Unified.js
- Unit Testing Experts
- Unity or Unity3D
- Unix
- Unreal Engine
- Usability Engineers
- User Acceptance Testing (UAT)
- UX
- Vaadin
- Vagrant
- Vanilla JS
- Varnishdan
- VBA
- VB.NET
- VBScript
- vBulletin
- Velocity
- Verilog
- VHDL
- Vibe.d
- Vimeo
- Vine
- Virtualenv
- Virtualization Engineers
- Virtual Reality Developers
- Visio
- Visual Basic
- Visualforce
- Visual Studio
- VMware Engineers
- VoIP Engineers
- VoIP Software
- Volusion
- VRaptor
- VSS
- vTiger
- Vue.js
- Vue Storefront
- Vuetify.js
- Vuforia
- VxWorks
- Wavemaker
- Web Developers
- Web2Py
- Web3.js
- Web Application Developers
- Web Architecture
- WebAssembly
- WebdriverIO
- Webflow
- Webflux
- WebGL
- WebKit
- WebObjects
- webOS
- Web QA Engineers
- WebRTC
- Web Scraping
- Web Services
- Website Auditors
- WebSphere
- WebStorm Experts
- Webware
- WebWork
- WebXR Developers
- Weebly
- WhisperAI
- Windows
- Windows App
- Windows Phone
- WinForms
- Wireshark
- Wix
- WooCommerce
- WordPress
- WordPress Genesis
- WordPress Plugin
- Wordpress Specialists
- WordPress Theme
- Wowza
- WPF
- WSDL
- Wt
- Xamarin
- Xamarin.Forms
- XAML
- Xbox
- Xcode
- Xero
- XHTML
- XML
- XMPP
- XNA
- XP
- XPath
- xQuery
- XSD
- XSLT
- xUnit
- Yahoo! Software Engineers
- Yahoo! Store
- YAML
- Yelp API
- Yesod
- Yii
- Yii 2
- YouTube API
- Zabbix
- Zapier
- Ze Framework
- Zen Cart
- Zend
- Zendesk
- ZK
- Zoho
- Zoom
- Zoom API
- Zope 2
- Zsh
- zTemplates
- ZURB Foundation
Check out some of our top developers
Max Flander
United StatesToptal Member Since March 31, 2016
Max has been working as a data scientist since 2013, backed by a Ph.D. in mathematics. His areas of expertise include data engineering, predictive modeling, recommender systems, information retrieval, and crowdsourced data curation. With exceptional communication skills and his knack for cutting to the heart of the discussion, Max has worked in Agile teams of varying sizes, and he is known for running highly effective stand-ups, planning, and team retrospectives.
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Keith Zimmerman
United StatesToptal 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.
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Robb Priestley
CanadaToptal Member Since May 29, 2017
Robb is a resourceful software professional with nearly 20 years of experience in building and delivering production-ready, enterprise-grade software of all kinds. He's educated in computer science and business and is a certified project management professional. He has worked with a diverse set of teams and has top-quality communication skills. His passion for development and his focus on business results make Robb an ideal candidate for your consideration.
Show MoreToptal Connects the Top 3% of Freelance Talent All Over The World.
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