Hire Vetted Web Application Engineers at Upstaff - Page 2

• 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

• Senior Software Engineer with 9+ years in fintech and banking, specializing in Golang, Java, Kotlin, and Python for scalable, cloud-native microservices architectures.
• Proven expertise in AWS (Lambda, S3, CloudFormation), event-driven systems (Kafka, RabbitMQ, Debezium CDC), and CI/CD pipelines with Blue/Green deployments ensuring zero-downtime releases.
• Led multiple engineering teams delivering complex financial platforms including digital lending, credit line, factoring, and trade finance with integrations to banking and government APIs.
• Strong background in software design patterns, RESTful and RPC APIs, automated testing (Cucumber, Spock), and observability tools (Grafana, ElasticSearch, CloudWatch).
• Holds a Computer Science degree and Information Systems management education, combining deep technical skills with leadership in Agile environments and extensive interviewing experience.

• Senior Full Stack Engineer with 7+ years of expertise in React, Next.js, TypeScript, Node.js, NestJS, and PostgreSQL.
• Experience in Gambling, SaaS, Fintech, and consumer applications, including high-load systems, real-time features, and third-party integrations.
• Expertise in cloud infrastructure and DevOps with AWS, GCP, Azure, Docker, Kubernetes, and CI/CD pipelines.
• Backend skills, including REST API, GraphQL, Strapi CMS, serverless Firebase Cloud Functions, and database design with PostgreSQL, MongoDB, and Cosmos DB.
• Worked with different architectural approaches, including micro-frontends, BFF (backend-for-frontend) layers, and serverless solutions.

• Senior Java Backend Engineer with 10+ years of experience delivering high-throughput, production-grade systems in healthcare and fintech domains.
• Expertise in Java (8 to 22), Spring Boot (2.7 to 3.5), microservices, Hexagonal and Clean Architecture, and SOLID principles ensuring scalable and maintainable codebases.
• Proven track record in architecting backend services, optimizing PostgreSQL performance, and integrating AWS cloud services including S3 and ECS.
• Hands-on experience with real-time big data pipelines processing 20+ TB/day using Kafka, Spark, Hadoop, and Cassandra.
• Strong foundation in computer science with M.Sc. degree and extensive knowledge of RESTful API design, CI/CD pipelines, and test-driven development using JUnit, Mockito, and Jacoco.

• 9+ years of experience in Java and Kotlin software engineering, specializing in microservices architecture, DevOps, and cloud-native applications.
• Proficient in Spring Boot, Spring Cloud, Docker, Kubernetes, AWS, and CI/CD pipelines, with hands-on experience in Terraform and Jenkins for infrastructure automation.
• Strong background in secure software development, including Keycloak integration, OAuth2, and PCI DSS-compliant cryptographic SDKs.
• Expertise in designing and implementing scalable backend systems using Kafka, RabbitMQ, Elasticsearch, and various databases like PostgreSQL, OracleDB, MongoDB, and Cassandra.
• Experienced in Agile methodologies (Scrum, Kanban), test-driven development (JUnit, Mockito, Testcontainers), and modern software engineering best practices.

• Proficient in front-end and back-end development with expertise in HTML, CSS, Ruby, Java, and Vim, complemented by 3+ years of hands-on experience in software engineering.
• Currently engaged in networking projects, applying practical knowledge of system integration and network protocols to enhance infrastructure reliability.
• Strong foundation in Information Technology from Karatina University, emphasizing software development lifecycle (SDLC) and modern programming paradigms.
• Skilled in using Blender for 3D modeling, demonstrating versatility in both software development and digital content creation.
• Fluent in English and Kiswahili, facilitating effective communication in diverse team environments and cross-functional collaborations.

• Proficient in front-end and back-end development with expertise in HTML, CSS, Ruby, Java, and Vim, complemented by 4+ years of academic and practical experience in Information Technology.
• Currently engaged in networking projects, applying software development lifecycle (SDLC) principles to deliver scalable and maintainable solutions.
• Strong foundation in software engineering methodologies, with hands-on experience in programming paradigms and tools including Blender for technical visualization.
• Academic background from Karatina University, specializing in Information Technology, ensuring a solid understanding of computer science fundamentals and engineering principles.
• Demonstrated ability to integrate diverse technologies and tools to optimize system performance and user experience in real-world applications.

• Senior Backend & AI Engineer with 7+ years designing scalable, low-latency distributed systems and GenAI platforms in YC-backed and enterprise environments.
• Expert in Python, FastAPI, Django/DRF, and event-driven microservices, specializing in resilient, self-scaling cloud-native backends using AWS, GCP, and Kubernetes.
• Proficient in Agentic RAG pipelines, LangChain, LLM inference (Ollama/VLLM), vector databases, and real-time data pipelines for fintech and AI-driven applications.
• Led teams and architected high-throughput data systems ensuring 99.9% uptime during transaction spikes and optimized database performance with PostgreSQL, MongoDB, and advanced ORM techniques.
• Holds MCA and PGDCA degrees with a strong foundation in computer science, delivering end-to-end solutions across SDLC, CI/CD, Terraform, and security audits for global clients.

• Software Engineer with 4+ years of experience specializing in Angular (v7-v18), NgRx, SolidJS, and TypeScript for high-performance web applications.
• Proficient in designing and implementing CI/CD pipelines, automated workflows using Azure DevOps, and integrating analytics tools like Power BI and Amplitude for data-driven insights.
• Strong background in computer engineering with hands-on expertise in secure payment platforms, cloud-based solutions, and system automation using Ansible and Debian packaging.
• Demonstrated ability to optimize application performance, reduce load times by 30%, and enhance modularity and testing coverage with Jasmine and Cypress.
• Contributor to open source security improvements and recognized for technical excellence with an Employee of the Quarter award.

• Full-stack developer with 4+ years of experience specializing in JavaScript, TypeScript, React, Next.js, Node.js, and PostgreSQL, delivering scalable, production-grade web applications.
• Proficient in modern software architecture, microservices, event-driven systems, and cloud infrastructure using AWS (Lambda, RDS, API Gateway, Cognito, S3).
• Led backend teams to implement subscription management features in a sports streaming platform using Node.js, Docker, Terraform, and CI/CD pipelines.
• Expertise in state management (Redux, MobX, Zustand), real-time communication (WebSocket, WebRTC), and UI/UX design with pixel-perfect responsive interfaces.
• Strong background in Agile methodologies, code quality assurance through unit/integration testing, and collaborative development workflows with Git, GitHub, and GitLab.

• Senior Full-Stack Engineer with 10+ years of experience delivering enterprise-grade web applications using React, Next.js, TypeScript, Python, and cloud-native technologies.
• Expertise in designing and integrating REST APIs, backend services with Django REST Framework and FastAPI, and optimizing frontend performance with reusable components and advanced state management.
• Proficient in containerization and orchestration using Docker and Kubernetes, with hands-on experience in AWS-hosted CI/CD pipelines and GitHub Actions for stable, efficient releases.
• Strong background in agile software development, technical documentation, and client collaboration to translate complex business requirements into scalable technical solutions.
• Holds a Bachelor of Computer Science degree and completed advanced training in React, Redux, and Python design patterns, ensuring up-to-date engineering practices and design principles.

• 15+ years of professional experience in software engineering, including 10+ years specializing in Ruby on Rails.
• Skilled in Ruby, Ruby on Rails, JavaScript/TypeScript, React JS, Angular JS, and RESTful API design, cloud platforms (AWS, Azure, GCP) and containerization (Docker, Vagrant).
• Experience in software architecture, design patterns, UML, MVC, TDD, BDD, and Agile methodologies (Scrum, Kanban, XP), SDLC.
• Leadership in large-scale projects including telemedicine, legal services, and e-commerce platforms, driving architecture, team coaching, and performance optimization (Elasticsearch, Sidekiq), and advanced database technologies (MySQL, PostgreSQL, MongoDB).
• Skilled in memory optimization, big data processing, API integration, code refactoring, and comprehensive documentation, delivering scalable and maintainable solutions across diverse domains.

• Senior Software Engineer with 10+ years of expertise in scalable web applications and distributed systems using JavaScript, TypeScript, React.js, Node.js, and Python.
• Proven leadership in transitioning to event-sourcing architectures, achieving 39× faster read query performance and enhancing system scalability.
• Extensive experience in microservices, REST API development, and database optimization with MongoDB and PostgreSQL for high-performance applications.
• Skilled in integrating AI-powered development tools like Claude Code and Cursor IDE to boost engineering productivity and innovation.
• Strong background in full software development lifecycle, team mentoring, and delivering complex solutions across diverse domains including industrial monitoring, telecommunication, and asset trading.