Hire Developers with Popular Programming Languages

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Upstaff connects top-tier engineers proficient in a variety of programming languages, ensuring your projects are powered by the right expertise, from Python and Java to JavaScript and beyond. Hire dedicated developers with the skills your business needs, seamlessly.
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Python
Django
Flask
C#
JavaScript
TensorFlow
APScheduler
AsyncIO
Beautiful Soup
Django Channels
Django ORM
Dramatiq
Pandas
pytest
CSS
HTML
Django REST framework
FastAPI
Vue.js
Vue Router
Vuex
Data Analysis
Data Mining
Elastic Search Platform
AWS ElasticSearch
MongoDB
PostgreSQL
Redis
SQLAlchemy
AWS MWS (Amazon Marketplace Web Service)
AWS S3
SP-API (Amazon Selling Partner API)
Google API
Telegram API
Bash
Celery
RabbitMQ
CI/CD
Cypress
Unit Testing
Docker
Jinja
microservices architecture
Nginx
Marshmallow
Natural Language
quip-API
...

- 5 years of experience in the IT industry as a Python Engineer- Proficient in using technologies such as Django DRF, Flask, Pandas, BeautifulSoup, SQLAlchemy, Asyncio, Flask + Marshmallow, Apscheduler, Jinja, Quip API, Docker, Nginx, Amazon MWS API, Amazon SP-API, Google API, and Telegram API; - Strong in refactoring, bug-fixing, and working with Python, JavaScript, Django, Django Rest Framework;- Skilled in developing faceted search and matching algorithms using ElasticSearch;- Experienced in PDF generation and importing from various formats;- Developed web applications, API interfaces, and automated scripts for data transformation;- Previous experience includes working as a Python developer focused on data scraping for Amazon, eBay, and Walmart products in dropshipping projects;- Also worked as a C# developer on various projects, specializing in web development, scraping, and parsing data;- Upper-Intermediate English;- Available ASAP

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Seniority Senior (5-10 years)
Location Budapest, United States
Python 5yr.
FastAPl 5yr.
Django
Flask
API
QA Automation 3yr.
RPA (Robotic Process Automation) 2yr.
Parse 2yr.
FastAPI
MySQL
SQL Alchemy
pyTelegramBotAPI
Telegram API
Crypto Services
TON
TonKeeper
Web3
FDD
Project Management
Mini-Apps
Mobile development
Multiprocessing
Telegram Mini Apps
...

- Python Developer with 5+ years of experience in backend development and automation; - Strong abilities with Django and Flask frameworks for web application development; - 4+ years of experience working with SaaS platforms; - Skilled in maintaining and supporting production systems using FastAPI and SQLAlchemy; - Experience with API integration, including financial services and crypto platforms; - Built and supported Telegram bots and automation tools for business operations; - Experience with diagnosing and resolving issues in running services and API changes; - Skilled in Docker deployment and Linux server management (Ubuntu); - Familiar with data reporting and basic analytics through internal monitoring tools; - Open to part-time and distributed team environments with a focus on ongoing system support.

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Seniority Middle (3-5 years)
Location Ternopil, Ukraine
JavaScript 7yr.
WordPress 7yr.
Vue.js 5yr.
Ajax
Bootstrap
CSS
HTML
HTML5
HTML/CSS Preprocessors
jQuery
LESS
SASS
SCSS
ES6
Gulp.js
Pinia
Vue Router
Vuex
Webpack
React
Agile
DRY
Kanban
MVC
Scrum
SOLID
TDD
API
RESTful API
Cypress
Unit Testing
Docker
Git
UIKit
...

- 7 years of commercial experience with JavaScript, ECMAScript 6. - 5 years with Vue.js framework (including Vue 3 core principles, Style Guide, Composition API, official documentation of the framework) - Deep understanding of HTML5 and CSS3. - Interacting with API endpoints and other web services. - Converting UI/UX mockups into functional web applications with pixel perfection - Experience with responsive layout, web sites, mini applications in JS and SPA in Vue.js. - Familiar with SOLID, DRY and other clean code design principles. - Experience with UI components like UI Kit & Bootstrap - Unit tests (Cypress) - Projects with Wordpress - Intermediary English

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Seniority Middle (3-5 years)
Location Vinnitsa, Ukraine
JavaScript 8yr.
React 8yr.
TypeScript 5yr.
Node.js 5yr.
Next.js 3yr.
Redux 4yr.
PHP 1yr.
React Native 1yr.
Angular
AngularJS
Backbone.js
Express
jQuery
NestJS
Angular CLI
Koa.js
ngFor
ngIf
NgRx
ngrx-forms
ngSwitch
React Bootstrap
reactive-forms
Redux-Saga
RxJs
Webpack
Ant Design
Material UI
Cordova
Ionic
AWS ElasticSearch
FireStore
MongoDB
MySQL
NoSQL
PostgreSQL
Redis
Sequelize
SQL
AWS
AWS EC2
AWS Lambda
AWS S3
Blockchain
Apache HTTP Server
Nginx
API
GraphQL
RESTful API
Conflict Management
Emotional Intelligence (EI)
Mentor Aptitude
Team Management
Team Management Skills
DeFi
Fortmatic
MetaMask
NFT
Smart Contract
Wallet Link
Web3
Docker
Kubernetes
MVC
REST
WebRTC
WebSockets
WordPress
Angular Material UI
Restfull API
Subsquid
...

- 10+ years of experience in web development, M.Sc in Software Engineering - Front-End: Angular, React, Vue.js (JavaScript & TypeScript) - Back-End: Node.js, Next.js, TypeScript , PHP - Mobile: React Native - AWS Cloud infrastructure - Control systems (e.g., Git) and familiarity with DevOps practices for continuous integration and deployment (CI/CD). - Unit testing, integration testing, and end-to-end testing. - Experience leading and mentoring a team of developers, including assigning tasks, providing guidance, and ensuring the team's success. Ability to motivate and inspire team members, resolve conflicts, and provide constructive feedback. - Experience conducting assessments and interviews remotely.

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Seniority Architect/Team-lead
Location Ukraine
JavaScript 5yr.
Web3.js
React
WebRTC
Ant Design 5yr.
Java
TypeScript
OpenAI
Ajax
Bootstrap
Bootstrap 4
CSS
HTML
Material UI
SCSS
Socket.io
Storybook
Styled components
Tailwind CSS
Ethers.js
i18next
Mobx
React Hooks
React Query
Redux
Redux Thunk
Redux-toolkit
Express
Ext JS
GatsbyJS
NestJS
Next.js
Node.js
MongoDB
PostgreSQL
Blockchain
Agile
Clean Architecture
Kanban
Scrum
Cypress
Jasmine
Jest
Mocha
React-testing-library
Unit Testing
dApps
Hardhat
Solana
Docker
Problem Solving
WebSockets
Chakra UI
CSS3
React-hook-form
seo
WAGMI
Zustand
...

- 5+ years of experience as a Front-end JavaScript Developer; - 5+ years of experience in React.js; - Proficient in Solana Blockchain operations, including managing deposits, executing transfers, creating Phantom wallets, and handling contract call interactions; - Strong abilities working with Web3; - Deep experience in Next.js technology; - Experience with WebRTC, Soket.io; - Good knowledge of Tailwind CSS, Bootstrap, and Chakra UI; - Experience working with Redux, and Docker; - Familiar with Node.js; - Proficiency in testing frameworks like Jest and Cypress; - E-commerce, web, and mobile applications, including learning platforms, chatbots, dApps, and cryptocurrency wallet extensions.

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Seniority Senior (5-10 years)
Location Castel San Giovanni, Italy
React 6yr.
React Native 2yr.
JavaScript 7yr.
Node.js 3yr.
Go
Java
PHP
Ruby
TypeScript
Bootstrap
Chrome Extensions
jQuery
LESS
SCSS
Ember.js
Gulp.js
NPM
React-Saga
Redux
Redux Thunk
Webpack
Java SE
Ruby on Rails
SQL
AWS
DigitalOcean
Linode
Atlassian Trello
Jira
BitBucket
GitHub
GitLab
CI/CD
GraphQL
RESTful API
Jest
Kanban
Scrum
...

- 9 years of proven professional expertise in the IT industry; - Advanced experience in Web Development using JavaScript 7+ years; - Solid experience in software development using ReactJS and React Native (6+ years); 3 Years with Node.js - Good experience in Web development using PHP; - Beginner experience in Web Development using Ruby on Rails; - Beginner experience in Web Development using Java; - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
Node.js 5yr.
React 3yr.
Solidity
NFT
Python 10yr.
C++
JavaScript
R
TypeScript
Express
Next.js
HTML
XML
BigChainDB
Cosmos DB
CouchDB
MongoDB
MySQL
PostgreSQL
SQL
Asterisk
Avalanche
BEP-20
BSC
DeFi
ERC-1155
ERC-20
ERC-721
ETH (Ethereum blockchain)
ICO
IPFS (InterPlanetary File System)
TronChain
Wallets (Integration & Transaction Signing)
Bash
Perl
Docker
GitLab CI
Kubernetes
Odoo
Stripe
Payload Verification
Strap
...

• 15+ years of commercial software development experience • Solid knowledge of Solidity, C++, JavaScript, TypeScript; • Deep understanding of blockchain architecture and smart contract logic; • Cosmos, Tron, Avalanche, Binance Smart Chain, Ethereum dApps; • Strong skills in developing NFT smart contracts. Support and payload verification; • NFT Marketplaces (ERC - 721/1155), Crypto Payment Solutions & DeFi Cross Chain Bridges - ERC-20 Tokens, ICO, DEX, Staking, Swapping; • Highly qualified knowledge of Stripe payment system integration to blockchain data; • 10+ years experience working with Python; • 5 years experience working with Node.js; • Strong abilities with Express; • Experience working with Docker, and Kubernetes (K8s); • 3+ years of development experience with React.js. • No scheduled vacations within the next 3 months;

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Seniority Senior (5-10 years)
Location Ukraine
JavaScript 4yr.
Vue.js 2yr.
React 1yr.
TypeScript
CSS
HTML
SCSS
Styled components
Tailwind CSS
Express
Node.js
Vanilla JS
Vue Router
Vuetify
Vuex
Webpack
Cloud Firestore
Firebase
Figma
Git
Google API
RESTful API
Authentication
Nova Poshta API
...

- 3 years of commercial experience, early projects since 2017. (Vue.Js, JavaScript, Chrome extensions) - Has good knowledge of JavaScript, working with arrays, working with elements, sorting and data algorithms. Good understanding of HTML and CSS. - Familiar with methodologies, principles, paradigms, and patterns in software development. - Vuex for state management and Styled Components for styling. - Rest APIs (Google, NovaPoshta) and Git for version control. - Tailwind, Figma, and Webpack for UI - Experienced in using Google Firebase, Cloud Firestore and Authentication.

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Seniority Junior (1-2 years)
Location Dnipro, Ukraine

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Manager
Maria Lapko
Global Partnership Manager
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Types of Programming Languages:

  1. Low-Level Languages:
    • Machine Language: Directly executed by the computer’s CPU; written in binary (0s and 1s).
    • Assembly Language: Uses symbolic representations of machine instructions, requiring an assembler to convert to machine code.
  2. High-Level Languages:
    • Easier for humans to read and write; translated to machine code by compilers or interpreters.
    • Examples: Python, Java, C++, JavaScript, Ruby.
  3. Scripting Languages:
    • Designed for automating tasks within other software.
    • Examples: Python, JavaScript, Perl.
  4. Markup and Query Languages:
    • Focused on structuring and managing data rather than performing computations.
    • Examples: HTML, XML, SQL.
  5. Domain-Specific Languages (DSLs):
    • Tailored for specific applications or domains.
    • Examples: MATLAB (for mathematical computations), R (for data analysis).
  6. Object-Oriented Languages:
    • Focus on objects (data structures containing data and methods).
    • Examples: Java, C++, Python.
  7. Functional Languages:
    • Emphasize mathematical functions and immutability.
    • Examples: Haskell, Scala.
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Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager

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