Hire Vetted Web Application Engineers at Upstaff - Page 4

- Front-end Developer with 8+ years of experience and expertise in creating scalable and high-performance web and mobile applications. - Proficient in React, Next.js, NodeJS, and Nest.js. Demonstrates strong leadership through active involvement in architecture planning, code reviews and mentoring teams. - Skilled in developing adaptive UI components, optimizing application performance and seamlessly integrating backend services using modern technologies such as JavaScript,TypeScript. - Proficient in establishing efficient CI/CD pipelines, enhancing SEO performance and employing advanced analytics tools for continuous improvement. - Passionate about delivering exceptional user experiences, driving continuous optimization and ensuring robust, scalable software solutions.

Innovative Full Stack Web Developer with 6+ years of experience building responsive web applications and 3+ years delivering decentralized applications (dApps) across EVM and non-EVM chains. Proven ability to integrate smart contracts, optimize wallet connectivity (ConnectKit, wagmi, Viem), and deploy scalable backends on AWS. Strong foundation in JavaScript/TypeScript, React, Node.js and DeFi protocols like Uniswap, Aave, and Curve. Experienced in secure, performant infrastructure design across both centralized (AWS) and decentralized (IPFS, Fleek) environments.

● Languages: JavaScript, HTML, CSS, SASS ● Libraries: React, Redux, React Material UI ● Unit-tests: Jest, Enzyme, React Testing Library ● Tools: Storybook, Cucumber ● Data approaches: REST API, GraphQL, Ajax ● Databases: MongoDB, MySQL ● Platforms: Node.js ● CMS: Adobe Experience Manager v6.5 ● Project systems: Webpack, GULP ● Version control: Mercurial, Git ● Protocols: HTTP, HTTPS, TCP/IP suite background ● Main OOP principles, classes and hooks approaches ● Familiarity with Docker (deployment on AWS services) ● Linux operating system (user level) ● Skills in Adobe Photoshop (for markup purposes) ● Experience in SEO optimisation and content editing

Backend Software Engineer with over 8 years of experience, specializing in Python, Go, and cloud-native technologies. Expert in API development, system architecture, and integrating distributed systems within research, regulated, and blockchain fields. Proficient in Python, Go, SQL, Docker, Kubernetes, AI/ML tools, and cloud services (GCP, AWS). Has led backend development for decentralized applications, real-time monitoring, file-sharing systems, and automated SDLC focusing on security and performance. Demonstrates proficiency in DevSecOps, regulatory compliance, and modern backend frameworks.

Software Engineer with 3+ years expertise in full-stack development, focusing on backend and API integrations. Proficient in Python and JavaScript, with strong experience in Django, Django REST Framework, and FastAPI. Comprehensive knowledge of relational and NoSQL databases, with advanced skills in MySQL. Demonstrable success deploying scalable web solutions on AWS with Docker and maintaining codebases with Git. Practical application of Agile/Scrum methodologies, and a proven track record of producing maintainable, well-documented code for data-driven applications, automated systems, and AI-powered tools. Holds a Bachelor's degree in Computer Science and multiple certifications, showcasing a commitment to professionalism and continuous learning in software engineering.

- 12+ years of experience in full-stack software development with a strong focus on .NET Core, C#, and Microsoft Azure ecosystem; - Built complex enterprise applications and scalable microservices architectures using ASP.NET Core, Azure Functions, Docker, RabbitMQ, and MS SQL Server; - Developed cross-platform web and mobile applications using React, React Native, and Node.js for industries including healthcare, logistics, education, social networking, and B2B platforms; - Built native apps on Windows, macOS, iOS, and Android with .NET Multi-platform App UI - Designed and integrated REST APIs and real-time messaging features for high-performance systems; - Delivered cloud-native solutions with Azure Web Apps, Azure Storage, CI/CD pipelines, and microservice orchestration; - Applied best practices in code quality, performance optimization, and agile software development; - Led architecture design, team collaboration, and technical mentorship across multiple full-cycle delivery projects; - Experienced in building customer-centric solutions, data-driven dashboards, and scalable CRM-like platforms.

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.

Software Engineer with over 15 years of experience, possessing a Bachelor's degree in Mechanical Engineering and Computer Science. Expertise includes Java, JavaFX, RESTful APIs, multithreading, and UI frameworks. Established track record in database optimization and system integration, having resolved critical memory leaks and threading issues, and refactoring database layers for increased performance. Proficient in Agile SDLC, with a successful transition from SVN to Git. Key projects include developing utility applications for certified election result dissemination and performance enhancements in complex software systems.

Technical Manager with over 15 years of experience in the IT industry, excelling in web application development and leadership roles. Expert in PHP, Node.js, and JavaScript, with a strong background in database management using MySQL and PostgreSQL. Highly adept in IoT applications, leveraging tools like GeoServer for spatial data management. Maintains a deep understanding of the software development life cycle (SDLC), agile methodologies, and client management. Demonstrates solid technical project management skills, aligning business objectives with innovative technical strategies. Holds an MSc in IT with outstanding academic achievements, underpinned by a solid foundation in programming languages and software engineering principles.

- .NET Software Engineer with 4 years of software development experience in different domains (FinTech, Real Estate, E-Commerce). - The biggest part of the experience is related to the .NET platform - Upper-Intermediate English - Available from 11.07.2022

Software Engineer skilled in PHP and Python for back-end development and web scraping, with experience in C++, Linux, Docker, and Git. History of developing APIs and data parsers, with expertise in server management and CMS module implementation. Holds a Software Engineering Associate Degree with focus on core computer science principles. Contributions include a C++ Tic-Tac-Toe project, showcasing proficiency in OOP and game development. Adept in multiple database systems and modern web technologies, with a strong foundation in SDLC and code refactoring.

Full Stack Web Developer with 8 years of experience specializing in web technologies and scalable microservices architectures. Expertise in RESTful APIs, GraphQL, front-end and back-end frameworks, and cloud infrastructures, particularly with AWS services. Profound knowledge of programming languages including JavaScript, TypeScript, PHP, Ruby, and SQL. Proven track record in handling low to medium complexity projects throughout the full software development lifecycle. Technical skills encompass working with diverse databases, implementing CI/CD with AWS tools and Jenkins, containerization with Docker, and blockchain technologies like Web3 and smart contracts. Holds a Master's Degree in Applied Mathematics and Informatics, reflecting a solid engineering background.

Accomplished Software Architect and Hands-on Engineering Manager with a strong history of building, leading, and mentoring cross-functional teams in designing, developing, and deploying high-scalability, secure software solutions leveraging cloud platforms, microservices architectures, CI/CD pipelines, and performance optimization strategies. Experienced in both startup environments and well-established organizations, with expertise in architecting reliable distributed systems, implementing best practices, and driving innovation while delivering quality software.

- 12 years of experience in backend development, including leadership roles in cross-functional teams; - Expertise in Scala, Python, and Java (with knowledge of functional programming principles); - Experience in system architecture improvements, leading teams, and developing scalable solutions; - Expertise in PostgreSQL, Oracle DB, MongoDB, and SQL; - Cloud environments such as AWS including performance and scalability optimization; - Docker and Kubernetes for container orchestration; - Apache Kafka for building event-driven architectures; - Led AI-driven projects in areas such as resume parsing, payroll automation, and learning management;

The engineer is a proficient Full-Stack Developer and R&D Engineer with a core focus on cutting-edge technologies encompassing JavaScript, TypeScript, Python, SQL, and C++. They have demonstrated expertise in frameworks and technologies like NestJS, Node.js, React.js, Next.js, Blockchain, and Cosmos SDK, coupled with strong database skills in PostgreSQL, MySQL, Redis, and LevelDB. With extensive hands-on experience in DevOps & tooling such as Docker, Git, Linux, Prometheus, and Grafana, the engineer has successfully designed and developed high-availability full-stack applications. Their professional experience includes leading feature development to shorten time-to-market and significantly improving system performance and stability through strategic optimizations. The engineer's deep understanding of RESTful APIs, microservices architecture, and workflow orchestration underscores a commitment to technical excellence in software development practices. Notable achievements include architecting critical blockchain integrations and real-time data streaming functionalities for varied user-intensive platforms. Holding a B.Tech in Computer Science from Medicaps University with a notable academic record further anchors their theoretical understanding and practical application of software engineering principles, securing the foundation for continued professional growth and contribution to technology innovation.

Senior PHP Back-end Developer with a strong background in computer science and extensive expertise in the Laravel and Symfony frameworks, boasting over 15 years in the industry and mastery in full-stack technologies. Proficient in database management with MySQL and PostgreSQL, and skilled in the use of design patterns, SOLID principles, and OOP to enhance software architecture and code quality. Demonstrates advanced knowledge in implementing and optimizing REST APIs, Kafka message brokering, and pioneering large-scale data operations. Experienced in fostering agile and TDD methodologies to drive continuous integration and delivery, underscoring technical leadership through mentorship and development of innovative web applications.

Accomplished Senior React Native Developer with a solid 7-year track record in mobile application development, underpinned by a bachelor's degree in Computer Science and Engineering. Expert command of React Native, JavaScript, and TypeScript, complemented by proficiency in leveraging ancillary technologies such as Redux, Firebase, and RESTful services. Demonstrated prowess in modern software engineering practices, including unit testing, code reviews, SDLC, and agile methodologies. Adept at fostering junior developers' growth while navigating complex project ecosystems and enhancing app performance and user experience, distinguishing themselves as a potent candidate for technology-driven roles.

A senior software engineer with over 6 years of full-stack experience specializing in React, TypeScript, and Node.js. This engineer has a proven track record of enhancing user engagement and retention through innovative UI design and application development. Their technical proficiency is demonstrated by significant contributions to a SaaS startup, including a 20% customer retention increase, and internal tooling that improved staff participation and satisfaction. Holding a Bachelor's in Computer Science and pursuing an Executive MBA with an AI specialization, they combine strong educational foundations with practical expertise in JavaScript frameworks, API integrations, and developing scalable, performance-optimized features. Strategic projects like the AI-powered skill assessment app illustrate their ability to leverage cutting-edge technologies to deliver impactful solutions.

Experienced Software Engineer with over 14 years of commercial development experience. Strong expertise in object-oriented programming, full-stack development, and cloud architecture. Proven leadership in managing both small and large engineering teams. Committed to delivering high-quality, scalable, and efficient software solutions across diverse platforms.

- Senior AI/ML engineer with hands-on experience in GenAI platforms, LLM orchestration, and RAG pipelines; - Skilled in Python and C# for backend services, chatbot architecture, and AI integration pipelines; - Built and deployed RAG systems using Azure OpenAI, AI Search, and LangChain; - Developed Whisper-based transcription pipelines with speaker diarization for business meeting summarization; - Integrated OpenAI models and multimodal embeddings into workflow automation tools like Jira and Trello; - Experience in distributed processing with Celery, RabbitMQ, and Redis for asynchronous task execution; - Deployed scalable AI services in Azure and AWS environments, using Kubernetes, Helm, and Azure DevOps; - Built real-time event processing and notification systems using Kafka and Apache Camel; -Designed APIs and backend services for customer support chatbots, voice platforms, and CRM integration; - Applied prompt engineering, testing (xUnit, pytest), and CI/CD automation across multiple AI initiatives.

- Experienced full-stack developer with 13 years of experience in software development - 6+ years in top-level and lead positions. - Proficient in organizing work, delegating tasks, and leading by example to accomplish team goals. - Adept in problem-solving, managing project progress, and communicating progress to stakeholders. -Skilled in coaching and motivating team members to improve their skills and reach their full potential. -Well-versed in Angular, Angular.js, Angular Material, React, Bootstrap, Node.js, Express, Nest.js, Loopback, MySQL, MongoDB, GraphQL, AWS, AWS S3, AWS Amplify, Electron, Ionic Framework, Flutter, and React Native.

- 5+ years in web and mobile development (Node.js, NestJS, Next.js, React); - AWS and GCP clouds, including Serverless Framework for serverless app deployment; - PostgreSQL, MongoDB, Docker, and microservice-based architecture; - Delivered real-time features using WebSockets for game logic and session state, REST and GraphQL APIs with Express.js and NestJS; - Experience with billing, auth, and dashboard modules for SaaS, fitness, and e-commerce platforms. Integrated Stripe and Google/Auth for billing and authentication; - Applied CI/CD, unit testing, and agile workflows across all projects

Vladyslav S. is a Senior JavaScript Developer with 6+ years of experience specializing in React.js, React Native, and Node.js. Experienced with AWS services (Lambda, ECS, RDS, DynamoDB), Firebase, Terraform, and CI/CD pipelines (GitHub Actions, Docker). Proficient in REST APIs, state management (Redux, MobX), and modern frontend frameworks like Next.js and Angular. Strong team collaborator with clean code practices and a focus on scalable architecture.

I am a Quadient developer looking for job in Netherlands. I have 9 years of relevant exp and immediate joiner

Software Engineer with 5+ years of backend development expertise, focusing on API construction, microservices management, and database performance optimization. Proficient in PHP, Node.js, NestJS, JavaScript, TypeScript, MySQL, and PostgreSQL. Holds a Bachelor degree in Science and has worked on enhancing Shopify web applications and designing scalable backend infrastructures. Known for optimizing MySQL queries to increase performance and improve server stability under high load conditions, resulting in more efficient and maintainable systems.

Lead Full Stack Developer with 5+ years of experience specializing in developing scalable web applications and architecting cloud-native solutions. Extensive experience with a wide range of technologies like JavaScript (ES6+), TypeScript, Python, React.js, Node.js, AWS, and DevOps tools including Docker and Kubernetes. Proven track record in leading teams, improving system performance, and integrating advanced security measures. Holds a strong background in Computer Science with a high GPA and certifications in AWS and Google Cloud. Recognized for contributions to the tech community and excellence in optimizing real-time systems.

A seasoned Full Stack Developer brings over six years of experience, specialized in JavaScript, Golang, and React Native, with profound knowledge of modern frameworks like NextJS and NestJS. Proven track record in leading projects from inception to launch, showcased through success in diverse domains such as Legal Tech, AgriTech, and Health. Demonstrates expertise in writing efficient, optimized code, backed by the ability to guide design efforts and manage installations for on-time product rollouts. Familiar with CI-CD pipelines, evident from setting up CircleCI, and skilled in complex technology ecosystems, including Microservices, Kubernetes, Docker, and AWS. Adept at full lifecycle software development practices, integrating various technologies with a focus on robust, scalable web and server solutions.

- 8+ years of experience in software development with a focus on JavaScript, TypeScript, and full-stack engineering; - Built complex web applications using React.js, Angular, and React Native across edtech, healthtech, e-commerce, and banking projects; - Developed cross-platform interfaces, including AI-powered chatbots with Whisper and Heygen, and real-time messaging platforms; - Worked with Redux Toolkit, RxJS, Nest.js, and Express for scalable state management and backend logic; - Delivered serverless APIs using AWS Lambda, API Gateway, Cognito, and integrated MongoDB via Mongoose; - Experienced in performance optimization, refactoring, bug fixing, and CI/CD using the Serverless Framework; - Built and maintained responsive UIs with accessibility, mobile support, and data visualization features; - Participated in team-based delivery with cross-functional collaboration and code quality improvements.

- Full-stack software developer with 15 years of experience - Expert in C#, asp.net, asp.net MVC, .net core, native JS, Jquery, Angular 1 and 2+ generation, and other technologies in the web development stack. - I have experience in C\C++, WinApi, COM, MFC and other technology stacks and I can work with the intersection of these technologies - My experience includes team and technical management, mentoring, and project management for new teams - Industries: Logistics and transportation, business intelligence, insurance and reinsurance, healthcare, government, information technology and services, professional services, computer software. - Upper-intermediate English

Software engineer with practical experience in full-stack web development, encompassing HTML, CSS, JavaScript, Node.js, and MongoDB. Proven track record with internships at CodeCraft Solutions and Nestsoft Technologies, demonstrating strong initiative, self-motivation, and real-world project management. Robust educational foundation with a Bachelor's in Computer Applications plus a specialization in Cyber Security. Developed a Master Study Portal project, showcasing skills in front-end and back-end development, RESTful API integration, and database management using Mongoose. Competent in version control with Git, and proficient with modern development tools such as GitHub and VS Code. Technical skill set further includes Bootstrap, Express.js, and REST API development.

An adept Senior Software Engineer with a strong background in Elixir/Phoenix, robust API development, and systems scalability. Engineered the 'Wukong API Proxy' to streamline deployment timelines at Mindvalley, resulting in significant reduction of developer wait times. Skillfully managed Robu Sdn Bhd’s software team, developing its B2B2C platform and ensuring efficient cloud-based deployments. At Fave, excelled in site reliability while transitioning infrastructure from AWS to GCP and enhanced web app performances via Elixir optimizations. With a Bachelor's in IT from Universiti Teknologi Petronas, the candidate demonstrates a solid grasp of software development. Emphasizes AI-assisted workflows, mastering languages like Ruby on Rails, Elm/React, and Rust, and diversifies with a foundational understanding of cryptography and blockchain technologies.