Upstaff Developer Profile Directory

- 5 years of experience as a Middle React.js Developer - He has experience with web interfaces and react.js and node.js technologies. Experience with PWA on projects, also worked with PHP, C++, C#, and Android development. - Upper-Intermediate English - Available ASAP

- 13 years of experience in application software development. - Experience of development mobile applications, desktop applications, database applications, WEB-applications, Static Code Analyzing, Team management. - More than 6 years of experience in administration IT infrastructure, passed MCP, MCITP, MCSA certifications. - Upper-Intermediate English. - Available ASAP.

- 2+ years of experience as a Middle React.js Developer - He has experience working on an SSR application on React.js/Next.js/Node.js/TypeScript. Knowledge in building high-quality JS and react.js applications. Engaged in the approach to performance optimization tools. - Upper-Intermediate English - Available ASAP

- Proficient in Node, Typescript, and Express, with experience in multiple backend development roles, working on projects related to education, healthcare, and SEO optimization. - Utilized tech stack including Nest.js, PostgreSQL, TypeORM, Redis, GCP, REST, and WebSockets while developing platforms for physicians and improving healthcare services. - Successfully integrated ElasticStack and implemented admin panels for SEO entities in a platform designed for automated SEO optimization. - Developed and maintained microservices for a healthcare company, focusing on notifications, messages, calls, and emails, utilizing technologies such as Express, Nest.js, MySQL, MongoDB, Sequelize, and Firebase. - Consistently prioritized efficient workflows and high test coverage, introducing git flow strategies and achieving 90% unit test coverage in microservices. - Upper-Intermediate English - Available ASAP

- 3+ years experience in the IT industry as a Java developer - Has skills in developing microservice applications - Has experience in programming Spring Framework, Hibernate - Great knowledge of Java Core - Upper-Intermediate English - Available ASAP

- Experience: 4+ years - Intermediate English. - Available ASAP.

- 10+ years of web development - Upper-Intermediate English. - Available ASAP.

- 10+ years of experience in software development - Extensive experience in the expansion and creation of themes/plugins, setting up new sites, support and modification of existing sites on WordPress - Created 200+ web sites targeted for various business areas and industries - Excellent knowledge of WordPress and popular plugins: WooCommerce, Gutenberg, ACF Web development experience, using OOP, PHP, AJAX, MySQL, JavaScript, XML, HTML and CSS - Understanding of cross-browser, adaptive layout and semantic HTML markup o Excellent knowledge of HTML5, CSS3, JavaScript, jQuery, Bootstrap - Integration with API NameCheap, PayPal and other services - Experience with Responsive Web Design, Mobile Web Development, Web Performance, Cross-Browser / Cross-Platform Development, Version Control - Software architecture design, using object-oriented and modularity principles o Experienced in building, maintaining, design implementation, end to end setup of the whole website on WordPress - Experienced in applying the GIT for the website development - Performs analysis, support and refactoring of the Legacy Encoded Applications - Flexible and able to work under the high pressure to ensure that projects are completed within the deadline - Intermediate English

- I am qualified and professional full-stack developer. - Responsibility is my strong part and I have the ability to meet deadlines. - 5 years of experience shipping innovative and scalable web solutions with React.js, Vue and Node.js. - I have Strong technical architecture and platform engineering skills and can easily switch between technologies - Upper-Intermediate English. - Available ASAP.

- 3 years of experience as a Middle React.js Developer - He has programming experience and knowledge in JavaScript, React.js (Next.js), and TypeScript. Likes to apply new development methods, design patterns, and current trends, as this is important for product quality. - Upper-Intermediate English - Available ASAP

- Back-end developer with 6+ years of commercial experience; - 4+ years of experience working with Node.js and Express.js; - Good knowledge of work with AWS, Doker; - 5+ years experience working with CORS; - Skills in working with blockchain projects; - Experience working with the DEX project in the field of DeFi; - Deep understanding of creating DB and API structure and implementing app logic; - Good collaboration with the product team to understand requirements and business specifications; - Highly motivated to do amazing products, like to learn new technologies; - Intermediate English; - Available: ASAP.

- Frontend developer with 4+ years of experience - Basic knowledge of Node.js on the back-end side - Experience working in both large and smaller teams - Has experience in technological solutions for improving business processes - Intermediate English - Available ASAP

Senior FullStack Developer

- 3+ years of experience with NodeJS, WebPack, Babel, PHP, BEM, AWS; - Work experience with Express.js; - A good understanding of how the infrastructure of blockchain projects works; - Experience working with NFT projects; - Good skills in fixing existing bugs and implementation of new functions in the backend of blockchain projects; - Experience in creating from scratch API connectors in Node.js-based for Polkadot blockchain; - In-depth skills in creating from scratch backend on Node.js-based to interacting with the blockchain, gathering data, and distributing rewards using smart contracts; - Intermediate English. - Available: ASAP

- A middle Ruby on Rails engineer with over 5 years of commercial experience in web development - Experience in refactoring and high-performance application development. - Upper-Intermediate English - Available ASAP

- 5+ years of commercial software development experience; - 5+ years experience working with Node.js; - Strong skills with Express.js; - Good knowledge of working with AWS; - Familiar with Docker, and Kubernetes (K8s); - Good abilities in mentoring and training new project participants, and supporting them; - Deep knowledge in designing and implementing backend and frontend features and bug fixing; - Upper-Intermediate English - Available: ASAP

- Middle Ruby on Rails engineer with over 5 years of commercial experience in web development. - Experience in integration of payment and messaging systems and high-performance application development. - Upper-Intermediate English - Available ASAP

- 4+ years of experience in IT - Upper-Intermediate English. - Available ASAP

- 5 years of experience. Obtained strong skills in frontend development. Skilled in React, Redux, experienced in Angular, AngularJS, Typescript, Next.js. Experienced with integrating frontend with backend API. Used Redux and HTTP services. Strong knowledge of assembling tools, like Webpack, Gulp - Upper-Intermediate English - Upper-Intermediate Polish - Available ASAP

- Frontend developer (Angular) at ITHoot. Before that, I worked as a freelancer for 1 year. - During my work, I mastered Html, Css, Scss, Gulp, JavaScript, Git, Angular2 - Pre-Intermediate English. - Available: ASAP

- Having huge experience (14+ years) in backend development on C/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 - Upper-Intermediate English. - Available: ASAP

- Strong knowledge and experience in object-oriented programming OOP. - Experience in developing of applications using WPF, WinForms, ASP.NET Core, and Angular. - xUnit testing is used for test cases. - Extensively worked with Version Control systems like GIT. - Experience of work with the NuGet Package Manager. Uploaded my own package. - Knowledge of SQL Server and SQL - Postman to test the API. - Development of websites using JS, TS, and CSS - A little experience in deploying containers in azure. - Pre-Intermediate English. - Available: ASAP

- 3,5 years of experience in web development. Skilled in JavaScript Node, and React, TypeScript frameworks. Good knowledge of Angular. Confident in HTML, CSS, integration with API. - Upper-Intermediate English - Available ASAP

- Developer with 11+ years of experience; - Developing web applications using PHP, JavaScript, Golang; - Experience with Blockchain and smart contracts; - Solid experience with MVC architecture-based Web Application Development; - Excellent knowledge of common software engineerings practices, like OO principles, modern design patterns, test-driven development, continuous integration, and continuous deployment; - Experience in building database architecture; - Hands-on experience with writing WEB-services (REST); - Has experience in Architectural approach discussions, design, and decision-making (feature/component level); - Estimation decision-making delivery management cross-team technical communication task; - Extensive experience in mentoring specialists, making code review; - Strong analytical skills, well knowledge of math, high level of responsibility; - Quick learner, team player, goal-oriented and responsible; - Upper-Intermediate English; - Available ASAP.

- 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

8 years of professional expertise in IT industry; 8+ years using Ruby on Rails framework and Rails ecosystem; 5+ years using JavaScript; (Angular JS, React JS) Experience in databases: PostgreSQL, Mongo DB;

• 5+ years of IT professional in front-end web development in the 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. • Experienced in different approaches, front-end engineering principles, and concepts. Knowledge in OOP, OOD, and AOP based on prototypes. • Upper-Intermediate English level. • Available: ASAP

- Has good experience more than 12 years. - Very good work with different databases and has good level of understanding complex systems with lots of dependences. - Mentoring (Codementor, StackOverflow) - Teaching (had experience explaining subject to audience) - Leading (team of 30 developers) - Upper-Intermediate English. - Available ASAP.

- 4+ years of experience in all stages of the web development process, including information gathering, planning, design, development, testing, delivery, and maintenance. Has continuously learned a wide array of scripting languages and multimedia web tools. Has experience working with Agile, Jira - Solid skills in building scalable web applications. He practices the skill of developing user interfaces and reusable UI components. - Experience with Solidity. - Deep understanding of smart contract development. - Good knowledge with blockchain. - Well-organized with an ability to prioritize tasks - Upper-Intermediate English - Available ASAP

- 20+ years of working experience in IT. - Participated in numerous amount of projects as Project Manager/Chief of Software Development Department, Software Engineer, JavaScript Developer, and Full stack Developer, dealing with software support and development: implementation of functional requirements, REST API; GRPS; GraphQL developed software applications for manufacturing industries, etc Main technical skills: Node. JS(Express, NestJS), Front solutions(Angular, Vue), SQL: Postgre, MS, MySQL, NoSQL. - Upper-Intermediate English. - Available ASAP.

- 2 years in Frontend Development (JavaScript) - English Intermediate - Available ASAP

- 11 years experience in IT (CMS Platforms: Bitrix, WordPress, Joomla, OpenCart), JavaScript. - 3+ years with ROR Ecosystem - Upper-intermediate English. - Available ASAP.

- Certified Magento 2 and Salesforce Frontend Developer with 10 years of experience. - Upper-Intermediate English - Available ASAP

- 4+ years of experience as a Front-End Engineer. - Experience with Solidity, Vue3, Quasar. - Solid skills with React and its libraries. - Worked with AWS and would not mind switching to Cloud Run, GCP services. - Experience with Supabase (using PostgreSQL instead of MongoDB). - Familiar with Firestore. - Now he has interested in functional programming, methods, test-driven development, and web components. The experience includes working together in a team environment to build high-performing websites. - Upper-Intermediate English. - Available ASAP.

- 9+ years of commercial experience in the IT industry creating web and mobile applications - 3+ years of recent experience in developing using Golang - Experience in developing applications using Java and Kotlin - Hands-on experience with third-party API integration - Upper-Intermediate English - Available ASAP

- More than 6 years of professional experience in the backend development - Proficiency at application architecture principles (including SOLID / DDD / DRY / KISS) - Understanding and efficient usage of design patterns - Project / tasks estimation (concept based, milestone, roadmap, detailed) - Agile / Scrum / Kanban (both team management & development) - Test-driven development (real unit- & acceptance- tests usage everyday) - High load optimization (both game backend and enterprise system solutions) - Upper-Intermediate English. - Available ASAP.

- 4+ Front-End development experience - Knowledgeable in JS\HTML\CSS - Good analitcs skills - Team player - Intermediate English

- 6+ years of experience in the IT industry as a front-end developer; - Significant experience in commercial software development, solid experience in building rich web applications using frameworks such as ReactJS; - Deep skills working with TypeScript; - Good understunding of AWS; - Experience with Docker; - Good abilities working with Vue.js and Angular; - Good skills working with Node.js and Express; - Upper-Intermediate English; - Available ASAP.

- 3 years of experience in the IT industry - Main specialization is developing SPA user interfaces using such technologies as JavaScript and React with accompanying libraries - Specialize in front-end debugging and performance improvement - Intermediate English - Available ASAP

- Magento Developer with 3+ years of experience in developing, designing, and maintaining websites on Magento. - PHP Developer with 3+ years of experience - Strong knowledge of LAMP, JS, OOP, Designing Patterns. - General knowledge of Woocommerce - Upper-intermediate English. - Available ASAP.

- Experience with Python of 5 years - Profoundund understanding of web applications and back-end development - Upper-intermediate English - Available ASAP

- 6+ years of development - Experience in website development on PHP (Laravel), SQL, JavaScript, and other back-end libraries - Pre-Intermediate English - Available ASAP

- 2.5 years of experience. Obtained strong skills in frontend development. Skilled in React, Redux, Typescript, Next.js. Experienced with integrating frontend with backend API. Some experience with backend development. - Upper-Intermediate English - Available ASAP

Highly self motivated individual seeking for an opportunity to work in challenging environment. I'm passionate about new technologies and continuously try to learn and prove my worth in those sections. I'm well versed in numerous programming languages and technologies from both web2 and web3 i.e. blockchain technology. Got a proven experience working on blockchain technology.

- Software Engineer with 5+ years of commercial experience in the IT industry using front-end and back-end technologies - Experience in working on cryptocurrency projects - Good knowledge of OOP - Experience in using Design patterns - Upper-Intermediate English - Available ASAP

- 7+ years of experience in the IT industry - Mobile & Web developer - Intermediate English

- 6 years of professional expertise in the IT industry; - Good experience in web development using Ruby on Rails framework and Rails ecosystem; - Good experience in Web development using (REST, SOAP, HTML, CSS, and SCSS); - Beginner experience in Web Development using Java Script (6 months), ReactJS (6 months); - Experience in databases: PostgreSQL, GraphQL. - Encouraged to build features that span everything from database schema design to backend logic, from integrating with 3rd party APIs to designing and building custom APIs. - Love to collaborate with, learn from, and mentor other developers, big fan of SOLID and DRY. - Upper-Intermediate English - Available ASAP

• 5+ years of practical experience • Upper-Intermediate English level. • 5 years of professional experience in the Information Technologies (IT) industry. • Experience in development on the Microsoft .NET platform (C#, ASP.NET MVC, ASP.NET Web API). • Skilled in Full-stack development. • Experience with Blockchain Smart contracts development. • Experience in developing database architecture. • Experience with writing unit tests.