Hire Vetted Web Application Engineers at Upstaff - Page 8

All vetted software engineers you need to build AI, Web3, and data Products.
  • Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
  • Europe, Israel, LatAm, United States, Asia geography coverage
  • Remote and hybrid engagement
  • Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
Java
Angular
...
- Java lead developer with 11+ years of complete circle engineering, development teams management, and architecture design. - Full-Stack Development Proficiency covering frontend technologies like AngularJS, Angular 11, ReactJS, and backend technologies including Java 8-14, Spring Boot, Hibernate, and more. - Proven Expertise in architecture design, system migration, and refactoring, enhancing performance and maintainability. - Specialized in RESTful APIs, designing, implementing, and optimizing high-performance APIs to facilitate seamless integration. - Successful Project Delivery, including Internet banking systems, contract management platforms, legal aid services, and ISP monitoring systems. - Strong Database Management Skills, with experience in PostgreSQL, OracleDB, HBase, Hadoop, and MongoDB. - 7+ years of experience as a Lead Engineer, leading teams of 10+ developers - 5+ years of experience as an Architect - Upper-intermediate English
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Senior
Zaporizhzhya, Ukraine
Java
React
...
- Results-oriented Java and JavaScript software engineer with 5+ years of experience developing, testing, and maintaining enterprise software solutions. - Developed and maintained a bunch of advanced projects from use cases and functional requirements. - Good team player, quick learner, motivated and detail-oriented. - Upper-intermediate English - Available ASAP
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Java 5yr.
React 2yr.
...
- Full-Stack Software Engineer with 5 years of development experience - Experience in AWS and messaging frameworks like Kafka and Spring Integration - Reworked applications to meet changing market trends and individual customer demands - Designed, developed, and implemented software applications for websites based on analyzed requirements and understanding of industry technical standards - Reviewed code and debugged errors to improve performance - Collaborated in a team-based, Agile environment to accomplish objectives by deadlines - Versed in the latest technologies and most useful programming languages - Fluent English - Available in 1-2 weeks after approval for the project
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C/C++/C#
Python
Java
HTML
CSS
...
I'm a second-year Computer Science student at Nanyang Technological University with a passion for full-stack development and cloud engineer , I’m seeking internships to combine my technical expertise and business acumen to drive innovative, tech-driven solutions.
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Intern
Singapore, Singapore
React
JavaScript
Node.js
...
- 5 years of experience in IT - My specialties include quickly learning new skills and programming languages, problem-solving, domain-driven design, Micro-service architecture, Rest API, responsive design principles, website optimization, and Model View View Model(MVVM) methods of organizing code. So far I have JavaScript, Python, Java, Typescript, HTML, CSS, ReactJS, Angular, SQL, NoSQL, Jest, Django, Spring boot framework, and Git under my belt. I'm still enthusiastically grabbing onto any other programming languages, frameworks, or principles I can integrate into the coding web in my head - Upper-Intermediate English. - Available ASAP.
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Senior
Addis Ababa, Ethiopia
React
Node.js
TypeScript
...
- 4+ years experience in software development - 3+ years working as Full-stack JS (React+Typescript/Node) developer - Intermediate+ English - Available 12/07/2021
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Node.js
React
...
- 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
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Senior
Lviv, Ukraine
PHP 9yr.
Vue.js 5yr.
...
- 9+ years of experience in the IT industry as a full-stack developer with great experience in modern web technologies. - Intermediate English - Available ASAP
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React
Vue.js
React Native
...
- 4 years of experience in software development based on frontend technologies. - Front-end developer with expertise in web & mobile application development based React.js/Vue.js, React Native, HTML/CSS. - Experienced in the next stages of the life cycle of development of business applications: planning, estimation, investigation, development, writing tests, support of existing code.
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Middle
Ukraine
JavaScript
React
...
- 7+ years IT professional in front-end web development in the field of web-oriented applications for startups, midsize businesses, and large enterprises from various industries. - Expert in React. - Follow React updates. - Good knowledge of TypeScript and JavaScript. Have fully and deep understanding of UX/UI design implementation into HTML layout. - Experienced in different approaches, front-end engineering principles, and concepts. - Knowledge in functional programing, service-based fronted development, OOP based on prototypes, Unit testing (TDD). - Upper-intermediate English - Available ASAP
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Senior
Odesa, Ukraine
Go
Node.js
...
- 14+ years of software development. - Experienced software developer with extensive skills in developing high-load multi-component systems featuring diverse languages and technologies. - An expert in the establishment of value-driven processes and cross-functional teams for the successful delivery of innovative products. - Upper-Intermediate English - Available ASAP
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Senior
Ukraine
React
React Native
...
- 5+ years of professional background in Web and Mobile Development. - Solid expertise in the development of CRMs, real-time apps, high-load, low-latency systems, Web and Mobile apps, RESTful API, etc. - Initiative in the development of solutions, the last project was highly loaded, was responsible for the architecture and implementation - Upper-Intermediate English - Available ASAP
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Middle
Yerevan, Armenia
Ruby
Ruby on Rails
...
- 7+ years of experience as a software developer. - Has experience working on 3 long-term projects with Ruby on Rails for over 3.5 years. In addition, started a career as a PHP developer and worked on 4 long-term and many short-term projects. - Has experience communicating with different teams and taking part in planning, feature creation, refactoring, testing, and deployment. - Upper-Intermediate English - Available ASAP
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Node.js
React
...
- 3+ years of professional experience using front-end and back-end technologies - Front-end: JavaScript(ES6), React, Redux, Redux-saga, Context API, React Hooks, Vue js, Vuex, Angular, HTML, CSS(SCSS), MaterialUI, AntDesign - Back-end: NodeJS (Express, NestJS), REST API, Docker - Solid experience in building rich web applications (monolith and MSA) using frameworks and libraries such as React, NestJs, Express, and Vue js. - Intermediate English - Available in 1 week after approval for the project
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Middle
Schiedam, Netherlands
TypeScript 1yr.
JavaScript
React
HTML
...
Accomplished junior web developer with a recent graduation from Telerik Academy and expertise in JavaScript and React, demonstrating both front-end and full-stack capabilities. Strong technical foundation displayed through impactful projects utilizing modern technologies such as Next.js, Tailwind CSS, PostgreSQL, and Firebase. Effective at independent work, as shown by rapid skill acquisition in welding transformed into disciplined software development, with a proven track record of mastering new technologies swiftly. An efficient teamwork contributor, evidenced by the successful collaborative development of complex web applications. Recognized for excellence in both academic achievements and practical application, ready to bring skills to a dynamic team.
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Junior
Sofia, Bulgaria
React 4yr.
Node.js 4yr.
JavaScript
...
- 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
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JavaScript 4yr.
React 3yr.
Node.js 2yr.
...
- 4 years of experience in web development. Skilled in JavaScript and React, TypeScript. - Confident in HTML, CSS, integration with API. - 4 years of experience in programming - Upper-Intermediate English - Available ASAP
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Middle
Lviv, Ukraine
Ruby on Rails 8yr.
React 6yr.
...
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;
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Architect/Team-lead
Cherkasy, Ukraine
JavaScript
TypeScript
PHP
Java
Python
...
- Senior Full-Stack Engineer with over 8 years of industry experience and a solid educational background with a Bachelor's degree in Computer Science from Holy Angel University. - Expertise in a wide range of programming languages (JavaScript, TypeScript, PHP, Java, Python, Golang, C#) and frameworks (React, Next.js, Vue, Node, Laravel, Django), enabling versatile full-stack development. - Proficient in modern DevOps and cloud technologies (Docker, Kubernetes, AWS, GCP), AI & ML implementations (PyTorch, TensorFlow), and creating responsive front-end applications that improve user experience. - A track record of building and maintaining large-scale, AI-integrated applications, such as a consumer savings app with 20,000+ active users. - Strong grasp of databases (MySQL, PostgreSQL, MongoDB, Firebase, Redis) and proficiency in Version Control (Git), improving collaboration and SDLC efficiency. - Demonstrated ability to drive projects from concept to deployment, with an emphasis on clean code, automated testing, and CI/CD practices.
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Python 7yr.
.NET 4yr.
ASP.NET Core Framework 4yr.
Node.js
FastAPI
...
A seasoned Senior Software & Machine Learning Engineer with extensive experience in backend engineering, AI/ML, and data engineering. With a decade of professional involvement, the engineer boasts a deep understanding of distributed computing and database design, having worked with technologies like .NET, Python, Spark, and Kubernetes. Education includes a BSc in Computer Science & Artificial Intelligence, reinforcing a solid foundation in modern engineering principles. Holds a proven track record of implementing intelligent systems, such as conversational AI platforms and deep learning models, that have significantly improved user engagement and reduced operating costs. The engineer's technical acumen is further highlighted by expertise in full-stack development, including the use of React, Svelte, and Angular, and in creating robust cloud-based solutions leveraging AWS. This combination of practical experience and education makes the engineer a standout candidate for driving innovation and efficiency in complex software environments.
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Python
Java
JavaScript
C/C++/C#
PHP
...
Proven Software Engineer with robust academia in Intelligent Systems & Software Engineering, adept in Python, Java, and AI/ML technologies. Offers hands-on experience in AI model training and software development, with expertise in algorithm optimization and system design. Noteworthy involvement in developing an AI-augmented code optimization framework and a performance predictor project during BSc. Combines technical prowess with data annotation and model evaluation finesse, poised to thrive in AI innovation.
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Junior
Kerugoya, Kenya
Python 5yr.
JavaScript 5yr.
Java 2yr.
TypeScript
SQL
...
A highly proficient Full-Stack Developer with over 7 years of experience, specializing in AI and NLP applications alongside web development. Adept at optimizing large language models, designing intelligent systems, and developing full-scale software solutions. The engineer's technical skill set encompasses Python, JavaScript, TypeScript, Java, C++, and SQL, with mastery in AI & NLP tools such as Hugging Face and TensorFlow. Their proficiency extends to full-stack development with a focus on MERN stack and Vue.js, demonstrated by a history of delivering high-performance, responsive e-commerce platforms, and proprietary CMS interfaces. With a Bachelor's degree in Computer Science and a strong background in DevOps practices, cloud platforms, and deployment technologies, the candidate has a proven track record of enhancing backend performance and streamlining deployment pipelines, positioning them as an asset for technically demanding roles.
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Senior
Lviv, Ukraine
Python 3yr.
Django 1yr.
SQL
...
Software Engineer with a Master's from Sharif University of Technology, specializing in machine learning and predictive modeling, particularly in blockchain data analysis. Technical skill set includes Python, JavaScript, SQL, along with frameworks like Django and FastAPI, and tools such as Docker and Git. Proven expertise in data analysis, machine learning, and web development, with experience designing RESTful API and backend systems. Adept at leveraging modern databases like PostgreSQL, MongoDB, Redis, and implementing agile methodologies for efficient software development. Key projects demonstrate strong capabilities in data pipeline construction, machine learning model development, and creative solution engineering for complex challenges.
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JavaScript 5yr.
TypeScript 5yr.
Python 5yr.
Node.js 5yr.
React 5yr.
...
A Senior Full Stack Engineer with a Master's in Information Technology from the University of Central Punjab, distinguished by strong expertise in JavaScript, TypeScript, Python, and notable experience in AI integration. Over 7 years of hands-on engineering practice across various roles in programming and team leadership. Proficiency in full-stack web development, scalable backend architecture, and cloud computing underscored by an excellent track record with Node.js, React.js, Next.js, and NestJS. Possesses extensive knowledge of cloud platforms like GCP and Vertex AI and demonstrates a deep understanding of Agile methodologies, CI/CD pipelines, and DevOps practices. Recognition for effectively leading development teams, mentoring junior engineers, and consistently delivering high-quality software solutions.
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Expert
Lahore, Pakistan
Ext JS
FDD
XML
Java
Python
...
A proactive and technically skilled software engineer with a BS in Computer Science from the University of Washington. Experienced in creating robust web and mobile applications utilizing advanced technologies such as Next.js, Java, Python, JavaScript, Node.js, PyTorch, and sklearn. Adept at optimizing data structures and algorithms and keen on adopting machine learning to enhance software solutions. Holds key certifications, including Oracle Java, and is committed to continuous learning. Brings a solid background in leading team operations to improve service quality and operational efficiency, with over five years of experience in supervisory roles. Eager to contribute to innovative projects in a collaborative environment.
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Junior
Puyallup, United States
React
React Native
HTML/CSS Preprocessors
JavaScript
Next.js
...
Highly skilled ReactJS and React Native developer with 5+ years of experience in crafting robust web and mobile applications. Strong background in mechanical engineering with a transition to software development, showcasing adaptability and a multifaceted skill set. Adept at leading projects, such as a significant migration to new web apps with React and real-time APIs using RabbitMQ, and creating survey tools with AI-powered analytics. Possesses hands-on expertise in React, Redux, Flutter, NextJS, NuxtJS, and modern frontend technologies, complemented by a track record of successful cross-functional collaboration. Contributed to multiple large-scale projects, notably enhancing customer experience through AI-powered social media insights. Successfully completed a frontend-focused education at ITI, underpinned by a BSc in Mechanical Engineering and professional certifications including PMP and JavaScript algorithm mastery.
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Senior
Alexandria, Egypt
ASP.NET Core Framework 8yr.
C/C++/C# 8yr.
React Native 2yr.
...
Software engineer with 8 years of experience, including specialization in React native, .Net development, and a strong background in the banking sector, HR, health, and biometric device integration. Proven track record in designing resilient cloud solutions with Microsoft Azure, and expertise in full SDLC, TDD, MVC, CQRS, and microservices architecture. Has developed scalable applications using C#, ASP.NET Core, React/React native, and Entity Framework, backed by a solid foundation in computer science with an MSc in Data Science and Business Analytics. Recognized for implementing efficient integrations with Central Bank systems and third-party APIs, enhancing financial technology ecosystems.
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MS Dynamics 365
.NET
C#
...
- Senior .NET developer with expertise in Retail and MS CRM development, specializing in POS development and root cause analysis for POS and backend issues. - Skilled in programming languages such as C#, SQL/TSQL, TypeScript, JavaScript, and HTML5/CSS. - Experienced in working with technologies and frameworks, including CRM SDK, .NET Framework/.NET Core, Dynamics 365 CE, Dynamics FO, Dynamics Commerce, ASP.NET/ASP.NET Core, and Azure. - Proficient in working with databases such as SQL Server and CRM. - Previous experience includes developing custom solutions for ITSM Province portal, healthcare, financial services, and travel industry projects. - Familiar with software development methodologies, principles, paradigms, and patterns, as well as SDLC and software development best practices.
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Senior
Bialystok, Poland
Unreal Engine
Team Leadership
API
FDD
...
Software engineer with over 8 years of experience specializing in payment systems, e-commerce integrations, and both frontend and backend development. Proven track record in developing plugins for WooCommerce and Magento, creating Shopify payment applications, and constructing APIs for complex systems. Holds a B.Sc in Computer Science with a focus on Software Engineering. Proficient in PHP, Java, Go, Python, JavaScript, Bootstrap, and Tailwind CSS. Experienced in PostgreSQL, MySQL, CI/CD, and implementing monitoring and caching solutions.
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Flutter 4yr.
GCP 4yr.
Firebase 4yr.
Go
...
* Software engineer with over 4 years of experience in mobile app development, specializing in Flutter and proficient in Dart, Kotlin, and Go. * Strong technical expertise in building robust backend systems, REST APIs, and has a keen interest in Blockchain technology within the GCP ecosystem. * Demonstrated ability in web development using modern technologies including HTML, CSS, JavaScript, React, and NextJs. * Active contributor to open-source projects, enhancing the value of platforms like APIDash and GoCoin. * Holds a Bachelor's and a Master's degree in Computer Engineering, underpinning a solid understanding of software development practices. * Recognized for building impactful mobile applications such as Edutive for education and Racha for addiction management.
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Middle
Bamenda, Cameroon
Payment Gateways 5yr.
WordPress 5yr.
Laravel 7-9 3yr.
Unity 2yr.
Ant Design 1yr.
...
Developer
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Expert
Caracas, Venezuela
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