Discover Top Developer Profiles
Our directory at Upstaff.com showcases a talented group of developers, each bringing a wealth of expertise to the table.
- With profiles highlighting skills in IT development, AI, design, sales, marketing, admin, and customer support, our developers stand out for their rigorous vetting and diverse technical proficiencies. Ranging from seasoned experts with over a decade of experience to skilled mid-level professionals, they excel in languages like JavaScript, Python, and React, tackling complex projects with precision.
- Hailing from various regions, including Europe, LatAm, Israel, and the United States, our developers offer a global perspective, ensuring adaptability and high-quality work across industries.
Each profile reflects a commitment to excellence, validated through thorough technical assessments and communication evaluations, making them reliable partners for any project.
- 5+ years of professional experience. - Automation testing with JavaScript, Cypress and SeleniumIDE. - Bug’s life cycle, roles and activities in project team, positive/negative tests, smoke-testing, GUI, cross-browser, compatibility, black-box, gray-box, functional, non- functional, regression testing. Experience in manual mobile application testing on IOS and Android operating systems. - Performance testing (load and stress) using JMeter. - Creation of test plans, test cases, test suite, checklists, bug reports. - Knowledge of Test Design technics. - Understanding of SDLC, methodologies and the difference between types of testing. - Upper-Intermediate English. - Available ASAP
- With about 6 years of software development experience with Ruby on Rails and the latest standards of ECMAScript - Intermediate English. - Available ASAP.
- 1.5 years of experience in the IT industry - JS, React, Redux, HTML5, and CSS (SASS)
- 5 years of experience in the IT industry - 3 years of using Microsoft Azure - 2 years in a Team Lead position - Development of web applications using Cloud solutions, DevOps processes set up for a team. - Advanced English.
- 7+ years of experience in IT - Azure (Virtual machine, blob storage) setup and configuration - DevOps Engineer with exemplary expertise in routine application, maintenance tasks, including troubleshooting and testing - Azure (Virtual machine, SQL servers, Blob storage, static web apps, application gateway) setup and configuration - CI/CD (Azure DevOps) setup and configuration - Intermediate English - Intermediate French - Available ASAP
- 3 years of experience in Frontend and Javascript development (React, Redux, Redux Toolkit) - React Router, Node.js, HTML / CSS, Lodash, Axios, Ant design and material UI - Understanding of MVC, MVP and MVVM - Intermediate English - Available ASAP
- Experience in developing 4+ years - Intermediate English - Available ASAP - Location: Kyiv
8+ years of experience in IT 8 years of experience in the development of different types of customer-face products on WordPress Configuration of the environments Good team player Highly self motivated Has disciplined approach to the work Oriented on results A reactive and highly responsible person Solid mathematical background English: reading and writing - with vocabulary
- 7+ years of iOS developer - 7 years of experience with Swift - Upper-intermediate English - Available ASAP
- 15+ years of professional experience - Infrastructure planning and implementation. - Planning and setting up the environment and performing migration of an application multisite the environment into AWS EC2 cluster with a load balancer - Managing autoscaling and AMI-separating applications with shared network storage. - Upper-intermediate English - Available ASAP
- 5+ years of experience in the IT industry using front-end and back-end technologies (Vue.js, React, Node.js) - Upper-intermediate English - Available ASAP
- Experience in developing 8+ years - 8+ years of professional experience with Python - Experience in development projects using: Python, Spark, Hadoop, Kafka - Good knowledge in Machine Learning (Keras, Tensorflow) - Experience with databases such as PostgreSQL, SQLite, MySQL, Redis, MongoDB - Experience in program automation testing. - Upper-intermediate English - Available ASAP
- 3+ years of production experience in IT. - Proficient in Front-end technologies. - Key area of technical expertise covers JavaScript, Nuxt, Vue/Vuex, HTML5, CSS3. - Intermediate English. - Available ASAP
- 10+ years of experience of Ruby on Rails developer - Fluent English. - Available ASAP.
• 5+ years of expertise • Development of e-commerce websites based on Magento eCommerce platform, Integration and customization out-of-box modules, Creation of new, custom Magento modules, Migration of custom Magento V.1 functionality to V.2, Customization of core modules) • Intermediate English • Available Full-time • No scheduled vacations within next 3 months
• 5+ years IT professional in front-end web development in a field of web-oriented applications for startups, midsize businesses and large enterprises from various industries. • Have a full and deep understanding of UX/UI design implementation into HTML layout. • Good knowledge of designers tools. • Expert in JavaScript. Experienced in different approaches, front-end engineering principles, and concepts. Knowledge in OOD, OOP based on prototypes, Unit testing (TDD) and functional approach. • Available: ASAP
- 5+ years of professional experience using front-end and back-end technologies - Front-end: Deep knowledge of native JavaScript (basics, OOP, DOM, events, asynchrony, AJAX, event loop), ES6+, React, Redux, other React tools (React-router, Redux-Saga, etc.), HTML5, CSS3, LESS, SASS, Bootstrap, Material-UI. - Back-end: Node.js, Express.js, NestJS, JWT, REST API, GraphQL, Postgres, Sequelize, Typeorm, knex.js, Docker, Microservices. - Upper-Intermediate English - Available in 2 weeks after approval for the project
- 4+ years of professional experience using front-end and back-end technologies - Front-end: HTML, CSS, BEM, SASS/SCSS, Bootstrap, Webpack, Material-UI, ReactJS, Redux, Redux-Saga, Jest, Lodash, React-Hooks, React-Query - Back-end: NodeJS (Express), Nest.js, REST API, Docker, OAuth, Postgres, TypeOrm, Sequelize - Upper-Intermediate English level - Available in 2 weeks after approval for the project
- 13 years of experience in IT as DevOps/SysOps - Administering, monitoring, maintaining complex deployments, securing large scale infrastructures, building CI/CD pipelines, supporting networks, servers, dealing with high load workloads - Setting up and managing Kubernetes clusters - Upper-intermediate English - Available ASAP
• Having huge experience (14+ years) in back-end development on C/С++/Erlang/Elixir has shown himself as aim-oriented developer with analytical skills. • Using his experience he can not only to develop new features and functionality, but also make clear hidden multiconnection in any code that is based on the scope of Erlang/Elixir/C/Js. • Has a huge experience in parser development of custom xml coding. • English Upper-intermediate. • Available Full-time. • Ready to start ASAP. • No scheduled vacations within next 3 months.
$5280/month
5 years of commercial experience. Worked as full-stack PHP, and with React 4+ years like frontend developer in various spheres and including education, video broadcasting, online gallery-market for artists, job search/proposal platform, healthcare, etc.
- 3+ years of experience in QA - Web, desktop and mobile applications testing, software testing on iOS and Android devices. - Intermediate English - Available ASAP
- 3+ years of experience in RPA Development - 4+ years of experience in .NET Development - Intermediate English - RPA UiPath - Available ASAP
- 5+ years of commercial experience with C# and .NET - Experience with .NET Core and .NET Framework - Experience with MS SQL Server, MongoDB, Cosmos DB - RabbitMQ, Redis - Worked with Stripe, AWS (SNS, SQS, S3, EFS, Lambda, EC2), Azure(Storage, Queues), Hangfire - Knowledge of OOP and SOLID principles - Basics of HTML, CSS, Javascript, JQuery - Familiar with Docker and Kubernetes; - Intermediate English - Available ASAP
- 3+ years of experience - Upper-intermediate English - Available ASAP
- Experience with E-Commerce platforms - REST API based on microservice architecture for transport infrastructure project - A teacher of IT-courses: “Grand” - OOP-oriented programming languages and design technologies. - Advanced English - Available ASAP
- 5+ years of Software Test Automation Engineer of diverse experience as AQA in Agile projects - Has mobile device testing experience both native (XCTest, Espresso) and with Appium. - Upper-intermediate English - Available ASAP
$5280/month
• 5+ years of practical experience (PHP Symfony, JavaScript React) • Good communication skills, proactive person, excellent team player, time management, ability to analyze complex technical information, excellent problem solver, understanding clients’ business processes. • Upper-Intermediate English level.
- 5+ years of experience in the IT industry - 4+ years of experience with ReactJS - 1+ years of experience with NodeJS - Upper-Intermediate English
$4000/month
Software Engineer with 6 years of software development experience. Fluent with agile methodologies, software design principles & approaches. Experienced with capturing and analyzing business requirements, their decomposition & further tasks planning. Result-oriented, open-minded, stress-resistant. My goal is to grow up own professional skills in development and make great contribution to company's growth.
- 5+ years of experience as the iOS Software Engineer - Intermediate English level - Available ASAP
• Software Engineer with 6+ years of experience in software development based on backend technologies (Node.js, ExtJS, PHP /Symfony/). • Experience in next stages of the life cycle of development of business applications. Architecture design, planning, estimation, investigation, development, writing tests, support of existing code. • Understanding of relational database concepts, modular application architectures, design patterns • Development of project architecture, algorithms and models on customer requirements
- 7+ years of experience (Expertise in Java , C#, SQL) - Worked with the frameworks: Spring, .NET Framework, Entity Framework, Laravel, CodeIgniter) - A strong team player, a strong feel of responsibility. - Intermediate English - Available ASAP
- 12+ years of experience in the development using Java and related technologies (Java, Groovy) - Spring, Spring Boot framework - Intermediate English - Available ASAP
- 9 years of experience in the IT industry - 6 years of experience in web development - Intermediate English - Available ASAP
- 4 years of experience in software design, development, and support - Salesforce Certified Platform Developer 1 & MuleSoft Developer 1 certificates - Upper-Intermediate English - Available ASAP
- 7+ years of experience in the IT - Experience in Microsoft technologies — .NET, .NET Core, C#, ASP.NET MVC, ASP.NET Web API, Amazon Web Services, and Microsoft Azure. - Intermediate English - Available from 19.07
4+ years in software development • Developing web applications using Python, JavaScript, React.js • Well skilled in Django, Django Rest Framework, Flask, AWS • Experience with PostgreSQL, MySQL, NoSQL and MongoDB • Upper-intermediate English level
- 10+ years of experience - Upper-Intermediate English - Available ASAP
• 3 years of experience (ReactJS, Node.js): architecture design, planning, estimation, investigation, development, writing tests, support of existing code. • English Advanced. • Available Full-time. • Ready to start in one - two weeks.
- 5+ years of commercial experience with C# and .NET - Experience with .NET Core and .NET Framework - Experience with MS SQL Server, MongoDB, CosmosDB, RabbitMQ, Redis - Worked with Stripe, AWS (SNS, SQS, S3, EFS, Lambda, EC2), Azure (Storage, Queues), Hangfire - Knowledge of OOP and SOLID principles - Basics of HTML, CSS, Javascript, JQuery - Familiar with Docker and Kubernetes - Intermediate English
- 8 years IT professional experience in software development of web-oriented applications - Experienced in Java web development in server-part applications and server maintenance - Upper-intermediate English - Available ASAP
• Bug’s life cycle, roles and activities in project team, positive/negative tests, smoke-testing, GUI, cross-browser(Internet Explorer; Mozilla Firefox; Safari; Opera; Google Chrome; Edge; Yandex Browser), compatibility, black-box, gray-box, functional, non- functional, regression testing, UI automation testing using Selenium IDE, Experience in manual mobile application testing on IOS and Android operating systems. • Knowledge of MS Dynamics 365. • Creation of test plans, test cases, test suite, checklists, bug reports. • Knowledge of Test Design technics. • Understanding of SDLC, methodologies and the difference between types of testing. • English Intermediate. • Available Full-time. • Ready to start next week. • No scheduled vacations within next 3 months.
- 4+ years experience in software development - 3+ years working as Full-stack JS (React+Typescript/Node) developer - Intermediate+ English - Available 12/07/2021
• 7+ years IT professional in backend Java based web development in a field of web-oriented applications for startups, midsize businesses and large enterprises from various industries. • Understanding of web infrastructure, architecture and backend development approaches. • Expert with PostgreSQL, Java EE, Spring, Hibernate. • Knowledge in OOP, OOD, AOP and functional approach also in MVC and DI patterns. • Available Full-time • Ready to start in 1-2 weeks • No scheduled vacations within next 3months
• 5+ years of professional experience. • Intermediate English level. • Available Full-time. • Ready to start in one - two weeks.
- 7+ years of experience, result-oriented full-stack developer with a strong technical skill-set. - Upper-intermediate English. - Available ASAP.
- 8+ years of experience in the IT industry - 5 years of experience in back-end software engineering using PHP (Laravel) - Knowledge of MySQL, PostgreSQL databases - Worked with payment, discount, and bonus systems, "speech to text" converting, online store. - Available ASAP - Upper-Intermediate English