Victoria S.

🧩 Full Stack Developer: 60+ projects | 🔌 API Integration: 5M+ API calls daily | 🤖 20+ AI App Development projects 🏆 Top Rated | 100% Job Success | $20K+ earned on Upwork NEED A FULL STACK DEVELOPER FOR REACT, REACT NATIVE AND NODE.JS? CONTACT ME NOW. I'm Victoria - Full Stack Developer, React Developer, React Native Developer, Node.js Developer, PHP Developer, AI App Developer. 8+ years shipping Web Application, Mobile App Development and SaaS Development work in React, Next.js, React Native, Node.js, PHP, TypeScript, JavaScript, Python, PostgreSQL and Amazon Web Services for Deutsche Bank, Erste Group Bank, RWE, Hitachi Energy, Scale AI and Deverus. 60+ Web Development deployments. 5M+ API calls daily. 99.9% uptime on Amazon Web Services. 105,000+ users on a SaaS I built. Full Stack Developer, 60+ Full-Stack Development projects: React and Next.js frontends, Node.js and PHP backends, PostgreSQL and API Integration on Amazon Web Services. As a Full Stack Developer I own a Web Application end to end - schema, API, UI, tests, deployment. Full-Stack Development in TypeScript and JavaScript: Back-End Development and Front-End Development in one pair of hands. Mobile App Development, React Native: iOS and Android apps sharing one TypeScript codebase with the React Web Application, plus API Integration with the same Node.js backend. Mobile App Development with React Native from MVP to store release. SaaS Development, 25+ products: multi-tenant Web Application architecture, Stripe subscriptions, credits, usage metering, role-scoped access. On STLBuddy I built Next.js, Node.js and PostgreSQL SaaS Development for 105,000+ makers and 266,000+ AI generations, with Python workers on Amazon Web Services. Back-End Development, 40+ Node.js and PHP services: API Integration, PostgreSQL queries, queues, caching, rate limiting. Back-End Development in TypeScript, JavaScript and PHP (Laravel). Front-End Development and Web Design, 8+ years: React and Next.js with TypeScript and JavaScript - dashboards, admin panels, marketplaces, Web Design from Figma to production. For Deutsche Bank, a tier-1 bank in 50+ countries, my Front-End Development covered data-heavy CRM screens. Front-End Development and Web Design are part of every Full-Stack Development engagement. Full Stack Developer for dashboards: on Metrikus I built React and Python analytics for 34 buildings and thousands of sensors, shipping more in one year than the in-house team did in four. For Erste Group Bank I cut financial dashboards from about 60 to 20 seconds on tens of millions of records. AI App Developer, 20+ AI App Development projects: LLM features in production - retrieval, structured extraction, streaming, cost controls, AI agents with tool calling. AI App Development in Python, TypeScript and Node.js inside an existing Web Application. Web Development, 60+ projects: Web Development and Full-Stack Development in React, Next.js, Node.js, PHP and JavaScript, Back-End Development with PostgreSQL, deployed on Amazon Web Services. For Deverus, a platform serving 35,000+ businesses, I redesigned a legacy Web Application in React and added an AI chatbot extracting applicant data from documents. INDUSTRY IMPACT FinTech - Full Stack Developer for a tier-1 bank and an Austrian banking group: dashboards ~65% faster on PostgreSQL. SaaS and AI - 105,000+ makers: SaaS Development, AI App Development, Web Design and Mobile App Development in Next.js and React Native. Energy - Hitachi Energy and RWE: Python telemetry pipelines, React and Node.js reporting with Cypress and CI/CD. Healthcare - HIPAA-aware Web Application, React Native Mobile App Development and PHP Back-End Development: patient portals with audit logging. TECHNICAL STACK React | Next.js | React Native | Node.js | PHP | TypeScript | JavaScript | Python | PostgreSQL | API Integration | Full-Stack Development | Back-End Development | Front-End Development | Web Application | Web Design | Mobile App Development | SaaS Development | Web Development | Amazon Web Services | AI App Development Full-Stack Development | Front-End Development | Back-End Development | API Integration | SaaS Development | Web Development | AI App Development | Mobile App Development | Web Design | JavaScript | Python | Amazon Web Services Web Development | Full-Stack Development | Front-End Development | API Integration | SaaS Development | Web Development | AI App Development Full Stack Developer | Senior Full Stack Developer | Freelance Full Stack Developer | Remote Full Stack Developer | React Full Stack Developer | Next.js Full Stack Developer | Node.js Full Stack Developer | PHP Full Stack Developer | SaaS Full Stack Developer | AI Full Stack Developer | React Developer | React Native Developer | Node.js Developer | PHP Developer | Web Designer | Mobile App Developer | Web Developer | SaaS Developer