React, React Redux, React Admin, React-Draggable, Immutable, Reselect, Redux, Redux-Thunk, Redux-Saga, Redux-Persist, Redux-Intl, Redux-Form, Formik, RxJS, Nx, React-i18n, React-Native, React-Navigation, React-Router-DOM, Three.JS, Styled-Components, NextJS

Angular, Angular material, KendoUI, Ant Design, PrimeNG, Bootstrap, DevExtreme, Nebular, Ag Grid, NgRx, NGXS, MobX, Akita, D3.js, ngx-translate, Formly, Nx, cytoscape.js, Ionic, Angular CDK, Chart.js

Vue, Vuex, Vue Router, Vue Test Utils, NuxtJS, Framework7, Vue Loader, Vite, Vue CLI, Vue Meta, Vue I18n, Vuelidate, vue-chartjs, Vuetify, Element UI, Quasar Framework, Bootstrap Vue, Rollbar, Auth0

Material, Ant Design, Apollo GraphQL, Protractor, Jasmine, Jest, Enzyme, Mocha, Electron, SSR, Lodash, Date-FNS, CSS, SASS/SCSS, LESS, Lerna, TypeScript

Java SE/EE, Kotlin, Scala, Groovy, RxJava, Spring Framework (Core, Data, Boot, Batch, Cloud, Security, Retry, MVC, AOP, Reactor), MapStruct, Lombok, Feign, WebFlux, Vert.x, jOOQ, Hibernate, JPA2, QueryDSL, Kafka, RabbitMQ, ActiveMQ, IBM MQ, Apache Spark, Apache NiFi, Apache Camel, Flyway, Liquibase, Keycloak, Microservices Architecture, ELK, Prometheus, Grafana, Splunk, AppDynamics, Docker, Kubernetes, OpenShift, REST, WebSockets, RSocket, SOAP, GraphQL, GWT, DB (Oracle, PostgreSQL, MySQL, MongoDB, Cassandra), Lucene, Solr, ElasticSearch, Redis, Ehcache, Hazelcast, Caffeine, Camunda, Activiti, Zeebe, jBPM, Flowable, JUnit, TestNG, Mockito, Cucumber

.NET Core, ASP.NET Core MVC, ASP.NET Web API, ASP.NET MVC, ASP.NET Web forms

Django, Django Rest Framework, Flask, FastAPI, AsyncIo, AioHttp, Tornado, Celery, Microservices Architecture, Docker/Kubernetes, PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, REST API, GraphQL, Web Socket, Swagger, JWT, OAuth

PHP, AMP V3, ReactPHP, DUKPT, Laravel, Symfony, Yii2, Laminas, Magento, PrestaShop, OpenCart, WordPress, Drupal, Joomla, PHP::FFI, PHP::JIT, MySQL, MSSQL, MongoDB, PostgreSQL, REST/SOAP/GraphQL API, JWT, OAuth, HTML, Twig, CSS, SASS/SCSS, LESS, Web Socket, Swagger, Redis, ElasticSearch, Docker, Vagrant, AWS SQS, Payment systems integrations (Stripe, Coinbase, Circle, PayPal, Authorize.net), social integrations (Facebook, Google), Firebase CM, WebRTC, Video Streaming

NestJS, Koa, Express, RxJS, MongoDB, PostgreSQL, MySQL, GraphQL, Mongoose, TypeORM, Sequelize, Passport, Knex, AWS (Lamda, EC2, RDS)

Unity, Godot, Blender, Krita, Amplify Shader Editor, MapBox SDK, Unity IAP; Firebase SDK; ARCore, AR Foundation, ARKit, Vuforia; Google VR SDK, Steam VR SDK; Unity XR Platform SDK

Ruby on Rails, Sinatra, Hanami, Padrino, Volt, EventMachine, Rack, Sidekiq, GraphQL, Web Socket, Swagger, JWT, OAuth

Go, gORM,Gin, protobuf, gRPC, AWS, GCP, Docker, Redis, Mongo DB, PostgreSQL

Rust, Rustup, Cargo, clap, structopt, argh, actix-web, gotham, nickel, rocket, axum, tide, warp, yew, wasm-bindgen, js-sys, web-sys, gloo. Games: amethyst, bevy, fyrox, piston, nannou, ggez, godot, raylib, SFML.

STL/C++11/14/17/20, GCC, CLang, MSVC++, WinDBG, GDB, Visual Studio, QTCreator, VIM, VSCode, CMake, Makefile, Ninja, Conan, Vcpkg, Boost, opencv, poco, protobuf, gRPC, fmt, pybindll, spdlog, ranges_v3, tensorflow, opencl, Asio++, gtest/gmock, cppunit, QT, catch2, google profiler, pytorch c++, chromium

Unreal Engine, C++, C, C#, Blueprints, UAT, UE4 Shader Graph, Unity URP HLSL, OpenGL ES

Cobol, GnuCOBOL, VSAM, JCL, TSO/ISPF, XPEDITER, FileAid, Changeman, CICS, Hostbridge, SQL/DB2, Endevor, Visual Studio, TACL, FTP, SFTP, SCOBOL, DDL, ENFORM, eInspect, Batchcom

Java, Kotlin, MVP, MVVM, Clean Architecture, Multi-module architecture AAC (ViewModel, LiveData, Lifecycle, Navigation Component, Paging), Dagger2 + Hilt, Toothpick, Moxy, Cicerone, RxJava 2, Coroutines, Retrofit, kotlinx Serialization, ViewBinding, DataBinding, JUnit, Mockito, MockK, Robolectric, detekt, ktlint

Objective-C, Swift, MVP, MVVM, Clean Swift SnapKit, XIB, SwiftUI, GCD, RxSwift, Combine, Swinject, Alamofire, URLSession, AVFoundation, MapKit + CoreLocation, WatchKit, WatchConnectivity, XCTest, SwiftLint

Vue, Vuex, Vue Router, Vue Test Utils, NuxtJS, Framework7, Vue Loader, Vite, Vue CLI, Vue Meta, Vue I18n, Vuelidate, vue-chartjs, Vuetify, Element UI, Quasar Framework, Bootstrap Vue, Rollbar, Auth0

Dart, Bloc, Clean Architecture, Multi-Package architecture Flutter, Flutter Web, Dart async, RxDart, Dart Streams, Navigator 2.0, GetIt, Dio, GraphQL, linter (effective dart style), Mocktail, Bloc Test

C#, Xamarin.Native (Xamarin.iOS, Xamarin.Android, Xamarin.Mac), Xamarin.Forms, Visual Studio, Electron

Java SE/EE, Kotlin, Scala, Groovy, RxJava, Spring Framework (Core, Data, Boot, Batch, Cloud, Security, Retry, MVC, AOP, Reactor), MapStruct, Lombok, Feign, WebFlux, Vert.x, jOOQ, Hibernate, JPA2, QueryDSL, Kafka, RabbitMQ, ActiveMQ, IBM MQ, Apache Spark, Apache NiFi, Apache Camel, Flyway, Liquibase, Keycloak, Microservices Architecture, ELK, Prometheus, Grafana, Splunk, AppDynamics, Docker, Kubernetes, OpenShift, REST, WebSockets, RSocket, SOAP, GraphQL, GWT, DB (Oracle, PostgreSQL, MySQL, MongoDB, Cassandra), Lucene, Solr, ElasticSearch, Redis, Ehcache, Hazelcast, Caffeine, Camunda, Activiti, Zeebe, jBPM, Flowable, JUnit, TestNG, Mockito, Cucumber

NestJS, Koa, Express, RxJS, MongoDB, PostgreSQL, MySQL, GraphQL, Mongoose, TypeORM, Sequelize, Passport, Knex, AWS (Lamda, EC2, RDS)

Authentication, Innovative Template Engine, Effective ORM, MVC Architecture Support, Secure Migration System, Unique Unit-testing, Intact Security, Libraries and Modular

Django, Django Rest Framework, Flask, FastAPI, AsyncIo, AioHttp, Tornado, Celery, Microservices Architecture, Docker/Kubernetes, PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, REST API, GraphQL, Web Socket, Swagger, JWT, OAuth

PHP, AMP V3, ReactPHP, DUKPT, Laravel, Symfony, Yii2, Laminas, Magento, PrestaShop, OpenCart, WordPress, Drupal, Joomla, PHP::FFI, PHP::JIT, MySQL, MSSQL, MongoDB, PostgreSQL, REST/SOAP/GraphQL API, JWT, OAuth, HTML, Twig, CSS, SASS/SCSS, LESS, Web Socket, Swagger, Redis, ElasticSearch, Docker, Vagrant, AWS SQS, Payment systems integrations (Stripe, Coinbase, Circle, PayPal, Authorize.net), social integrations (Facebook, Google), Firebase CM, WebRTC, Video Streaming

Semantic Elements, Audio and Video Support, Canvas Elements, Geolocation API, Local Storage, Responsive Images, Web Workers, Drag and Drop API, Form Enhancements, Web Sockets, Micro Data, Cross Document Messaging

CSS3 selectors, rounded corners, box shadows, RGBA, HSL and HSLA colors, box sizing, Opacity, CSS3 Gradients, transitions, transformations, animations, multi-column layout, flex box, CSS grids, embedded fonts and Responsive web design

RDBMS

MySQL, PostgreSQL, Oracle, Amazon RDS, Amazon Aurora, Azure SQL Database, H2

NoSQL

MongoDB, Apache CouchDB, Apache Cassandra, Elasticsearch, Amazon DynamoDB, Azure DocumentDB, Azure Table storage, Azure Blob storage, Firebase, Neo4j, HBase

Caching

Memcached, Hazelcast, Redis, Amazon ElastiCache, Azure Redis Cache, EVCache, Dynomite

Searching

Apache Lucene, Elasticsearch, Amazon CloudSearch, Azure Search, Solr

UI

Sketch, Figma, Adobe XD, InVision Studio, Proto.io, Marvel, Zeplin, Flowmapp, Balsamic, Hotjar, Adobe Collection

UX

User interviews, focus groups, user story maps, MVT and A/B testing, UI review, usability testing, eye tracking, Google Analytics, Yandex.Metrica

3D

3D Studio Max, Corona Render, 3D Coat, Adobe Photoshop, Adobe After Effect, Unity, Amplify, Shader, ZBrush, Substance Painter, ShaderMap