Hire Vetted Web Application Engineers at Upstaff - Page 6

• Software engineer with 10+ years in full-stack JavaScript, specializing in scalable web, hybrid mobile, and cross-platform desktop applications using React, Next.js, Node.js, and TypeScript.
• Proven track record in designing microservices, REST/gRPC APIs, and cloud infrastructure automation with AWS, Docker, Kubernetes, and Terraform.
• Led development of enterprise-grade platforms including e-commerce, telecom microservices, and aviation weather systems, emphasizing modularity, security, and performance.
• B.Tech in Computer Science with strong open-source contributions to Ionic and Capacitor ecosystems, demonstrating commitment to community and innovation.

Senior Software Engineer with 11+ years building scalable web applications using JavaScript/TypeScript, React, Node.js, and Express. Expertise in designing high-performance RESTful APIs, improving data retrieval by 35% and reducing response times by 30%. Strong database experience (PostgreSQL, MySQL, MongoDB, DynamoDB) with proven optimization gains. Skilled in TDD with Jest and Mocha, achieving 90%+ coverage and reducing defects. Experienced in Agile, CI/CD, microservices, serverless architecture, and mentoring engineers.

• Designed and scaled high-performance backend systems handling up to 500 TPS, improving reliability and throughput in banking and real-time platforms.
• Reduced account opening turnaround time by 80% through BPM workflow optimization.
• Led migration of legacy systems to microservices, enhancing scalability and maintainability.
• Improved observability using ELK, Grafana, and Micrometer, and mentored engineers to boost team productivity and code quality.

• Backend Engineer with 5+ years designing scalable SaaS backend systems using Node.js, TypeScript, and SQL databases.
• Proven expertise in API design, database optimization (indexing, query tuning), and building high-reliability distributed services.
• Hands-on experience with cloud infrastructure (AWS, Docker), microservices architecture, and CI/CD pipelines.
• Contributed to performance improvements reducing infrastructure costs by $12k+/year and boosting user engagement by 40%.
• Expanding skills in C#/.NET ecosystem, with strong debugging, testing, and asynchronous collaboration in international teams.

Full Stack Developer with 3+ years of experience in React.js, Node.js, and Express, working with databases like MongoDB, MySQL, and PostgreSQL. Experienced in building scalable web applications and APIs, with hands-on use of AWS services including Cognito, Lambda, S3, and EC2. Skilled in implementing secure authentication systems (Cognito, Keycloak, CAS) and role-based access control. Strong foundation in clean architecture, CI/CD with GitHub Actions, and agile practices. Computer Science graduate with experience in microservices, monorepos, and performance optimization across healthcare, education, and sustainability domains.

• Sr Full-Stack Developer and Tech Lead with 9+ years of experience specializing in Node.js, Nest.js, Vue.js, GraphQL, and microservices architecture.
• Proven expertise in designing scalable backend systems, optimizing performances, and integrating complex third-party AI and invoice processing services.
• Led development of dynamic web platforms featuring drag-and-drop UI builders and CI/CD pipelines, enhancing team productivity and deployment efficiency.
• Strong command of modern front-end frameworks (Vue.js Options/Composition API, Nuxt.js) and backend ORM tools (Prisma, TypeORM, Sequelize) with robust testing and automation practices. Experienced in cross-functional team leadership.

• Proficient in full-stack development with expertise in Flutter, .NET, Solidity, and blockchain technologies, delivering robust and scalable solutions.
• Demonstrated leadership in managing projects and teams, including roles as Project Development Manager and Senior Developer.
• Experienced in SDLC best practices, software architecture, and cross-platform development, with a strong focus on Web3 and blockchain integration.
• Proven track record in freelance and corporate environments, contributing to diverse projects across Brazil and Canada.

Innovative Senior Software and AI Engineer with 13+ years of experience across backend, frontend, mobile development, and system design. Skilled in Python, Node.js, PHP, C#, Java, cloud-native architectures, and modern frameworks including React, Next.js, Angular, React Native, and native Android. Experienced in building scalable applications, developer tools, and intelligent automation that improve SDLC efficiency. Strong background in CI/CD, OOP, performance optimization, and testing frameworks for high-impact engineering teams.

Innovative Senior Software and AI Engineer with 13+ years of experience across backend, frontend, mobile development, and system design. Skilled in Python, Node.js, PHP, C#, Java, cloud-native architectures, and modern frameworks including React, Next.js, Angular, React Native, and native Android. Experienced in building scalable applications, developer tools, and intelligent automation that improve SDLC efficiency. Strong background in CI/CD, OOP, performance optimization, and testing frameworks for high-impact engineering teams.

Full-stack developer with 6+ years of experience building scalable SaaS and e-commerce solutions across PHP (Laravel, Symfony, Yii2, Magento 2) and Node.js ecosystems. Skilled in database design with MySQL, PostgreSQL, and MariaDB, including Liquibase version control. Expert in REST and GraphQL API development and integrating payment gateways like Stripe and Klarna, with multi-tenant projects such as ParkingBadge and Sharefox. Proficient in VueJS, React, Angular, Node.js, and Tailwind CSS, plus DevOps practices including Docker, CI/CD, and Linux administration. Master's in System Information in Economics, leveraging AI tools like Claude and Cursor for rapid development.

• Full-Stack Developer with 3 years of experience in scalable web applications using JavaScript/TypeScript, React, Next.js, Node.js (NestJS, Express), and PostgreSQL.
• Expertise in microservices architecture, event-driven systems with Kafka, real-time data handling, and multi-tenant platform development.
• Proficient in containerization (Docker, Kubernetes), cloud deployment (AWS), and CI/CD pipelines ensuring high availability and performance.
• Skilled in modern state management (Zustand, Redux Toolkit), validation (Zod), and UI frameworks (Tailwind CSS, Material UI).

• Proficient in backend development using Node.js, Express.js, and TypeScript, with hands-on experience designing scalable microservices and multi-VM architectures, including Nginx reverse proxy implementations.
• Skilled in cloud infrastructure management across AWS, Azure, and DigitalOcean, optimizing resources, alongside CI/CD pipeline automation using GitHub Actions and Azure DevOps.
• Strong expertise in databases (MongoDB, MySQL, PostgreSQL), frontend frameworks (React.js, Angular), and software development best practices, including feature-based Git workflows, system design, and secure file handling with MongoDB GridFS.

• Over 6 years of experience in frontend engineering with expertise in React, TypeScript, GraphQL, and state management libraries like Redux and Zustand.
• Proven track record in optimizing performance (up to 40%) and reducing load and deployment times through modular architecture and build pipeline enhancements using Webpack and Vite.
• Strong background in scalable UI architecture, CI/CD, accessibility (WCAG).
• Hands-on experience leading teams and improving development workflows with structured Git-flow and PR rules, enhancing code quality and delivery speed.
• Skilled in integrating third-party APIs, micro frontends, and real-time communication via WebSockets.

An accomplished front-end engineer with a solid foundation in Computer Science from UNAD University and over 8 years of professional experience, including 4 years as a Senior Full-stack Developer at Adastra. Demonstrates advanced proficiency in React.js, Redux-Saga, Vue.js, Angular.js, and modern web development with a proven track record of leading the development of scalable, responsive, and high-performance web applications. Notable achievements include spearheading a migration to microservices architecture, yielding a 40% reduction in system downtime. Possesses in-depth knowledge of cloud services (AWS), CI/CD methodologies (Jenkins), and containerization (Docker).

• Senior .NET / Full-Stack Engineer with 12+ years delivering scalable enterprise and mobile solutions using .NET Core, MAUI, Flutter, and React.
• Expertise in microservices, cloud-native architectures (AWS/Azure), and WISP network design with MikroTik and PPPoE.
• Proven track record building ERP systems, AI-driven microservices, and cross-platform mobile apps with real-time APIs.
• Strong leadership in remote Agile teams, managing full SDLC, CI/CD pipelines, and distributed system deployments.
• Ongoing B.Sc. in IT Engineering, skilled in C#, Kotlin, Swift, Docker, Git, and advanced networking for ISP infrastructure.

• Software Engineer with 10+ years of expertise in backend development, specializing in Node.js, TypeScript, Python, and Golang for scalable, secure financial platforms.
• Proficient in Secure Software Development Lifecycle (SSDLC), OWASP Top 10 mitigation, API and Cloud Security (AWS), integrating security into architecture and development.
• Experienced in microservices, RESTful and GraphQL APIs, cloud-native solutions using AWS Lambda, API Gateway, and data engineering with SQL/NoSQL databases.

• Full Stack Developer with 8+ years of experience specializing in JavaScript/TypeScript, React, Next.js, Angular, Node.js (Express, NestJS), and cloud platforms AWS & Azure.
• Proficient in designing scalable architectures, REST & real-time APIs (Socket.IO), and working with RDBMS (PostgreSQL, MySQL) and NoSQL (MongoDB).
• Strong background in Computer Science (Master’s degree) with expertise in OOP, design patterns, UML, and SDLC including Agile and TDD methodologies.

• Full Stack Developer with 5+ years of experience in designing and scaling AI-driven and cloud-native web applications using Node.js, NestJS, Angular, and TypeScript.
• Expertise in system architecture design, RESTful API integration, and optimizing performance across SQL/NoSQL databases including PostgreSQL, MySQL, MongoDB, and Redis.

• Full-Stack Developer with 7+ years of experience specializing in Angular, Node.js, and .NET, delivering scalable web applications in healthcare, support platforms.
• Proficient in frontend frameworks (Angular, React), backend development (Node.js, .NET), and API design, with strong skills in TypeScript, RxJS, and UI/UX tools (Figma, Balsamiq).
• Experienced in Agile methodologies, code reviews, unit testing (Jasmine, Karma), and CI/CD practices, ensuring high-quality, maintainable, and testable code.

• Full-Stack Developer with 7+ years of experience specializing in Angular, Node.js, and .NET, delivering scalable web applications in healthcare, support platforms.
• Proficient in frontend frameworks (Angular, React), backend development (Node.js, .NET), and API design, with strong skills in TypeScript, RxJS, and UI/UX tools (Figma, Balsamiq).
• Experienced in Agile methodologies, code reviews, unit testing (Jasmine, Karma), and CI/CD practices, ensuring high-quality, maintainable, and testable code.

• 4.5 years of experience in full stack PHP development with expertise in Laravel, WordPress, and VueJS, delivering scalable web applications and APIs.
• Proficient in database management using MySQL, PostgreSQL, and SQLite, with strong skills in back-end automation, CRM development, and API integrations including Stripe, PayPal, and Telegram.

• Over 4 years of full stack development experience specializing in React, React Native, TypeScript, and Python (FastAPI) with strong expertise in system architecture, database management (PostgreSQL, MongoDB, Firebase), and Docker deployment.

• Senior Full Stack Engineer with 9+ years of experience in designing and delivering scalable web and mobile applications using Python (Flask, Django, FastAPI), PHP (Laravel, Symfony), and JavaScript/TypeScript (React, React Native, Node.js).
• Strong background in Agile methodologies, CI/CD automation, security best practices (OAuth 2.0, JWT, PCI-DSS), and delivering high-availability platforms with 99.9% uptime and significant reductions in downtime and latency.

Built and deployed multiple high-performance Telegram bots for automation, e-commerce, and customer support, improving efficiency and user engagement. Successfully integrated payment systems and third-party APIs, ensured reliable uptime, and optimized bot performance for real-time interactions.

• Senior Frontend Engineer with 5+ years of experience specializing in React JS, React Native, and Expo.
• Expert in architecting scalable monorepos using Rspack and Module Federation, and implementing cross-platform solutions with Tamagui design system to accelerate feature delivery.
• Proficient in integrating complex payment systems (crypto and traditional), KYC/AML flows, real-time multilingual chat via WebSockets, and push notifications with Novu.

• Full-Stack Developer with 5+ years of experience specializing in React, Next.js, Nest.js, and Golang for scalable web and crypto-rewards platforms.
• Proven expertise in building high-performance GraphQL APIs, optimizing backend systems, and integrating Web3 wallets and AWS S3 for secure data management.
• Skilled in Agile methodologies, CI/CD automation using GitHub Actions and Azure, enhancing deployment speed by up to 40%.

Proficient in building reusable components, optimizing application performance, and maintaining test coverage within complex financial ecosystems. Strong background in software development lifecycle (SDLC), collaborating with design and backend teams to deliver scalable solutions using Git, CI/CD pipelines, and AWS. Hands-on experience with payment systems, trading platforms, and administrative tools, driving improvements in user experience and operational efficiency for over 300k customers.

• Senior software engineer with 10+ years delivering complex systems in Java, .NET/C#, JavaScript, and Avalonia/WPF desktop applications.
• Founder and CEO of a software consultancy with proven success in e-commerce, FinTech, video management and telecom domains.
• Strong background in software architecture, Agile/Scrum methodologies, CI/CD pipelines, and technical consulting for enterprise-grade projects.
• Advanced education in ICT and Computing from the University of Zagreb (FER)

• Blockchain integration across EVM and Solana networks, including real-time token swaps, wallet management, and secure transaction processing.
• Proficient in designing optimized PostgreSQL schemas and implementing microservices with asynchronous processing for high-throughput financial systems.
• Master’s degree in Computer Science underpinning solid engineering principles, API design, and agile delivery within cross-functional international teams.

• Engineer with strong foundation in Computer Science (CGPA 3.8/4.0) and extensive training in Data Structures, Algorithms, and Backend Development through A2SV and university education.
• Proficient in Python, Go, JavaScript/TypeScript, and C++, with hands-on experience building scalable backend systems.
• Ranked top 5 in a competitive Data Science Bootcamp, applying advanced ML techniques for environmental data analysis, showcasing strong analytical and problem-solving capabilities.

I’m Jorge Gómez, a Full Stack Developer with 7+ years of experience building scalable, user-focused applications.

🔹Backend: Node.js / NestJS, Python (Flask / FastAPI), Laravel

🔹Frontend: Angular, React, Next.js, TypeScript, Tailwind CSS, Material UI, Styled Components

I’m Jorge Gómez, a Full Stack Developer with 7+ years of experience building scalable, user-focused applications.

🔹Backend: Node.js / NestJS, Python (Flask / FastAPI), Laravel

🔹Frontend: Angular, React, Next.js, TypeScript, Tailwind CSS, Material UI, Styled Components