Victoria S.

Full Stack Developer | React | Node.js | Next.js | TypeScript

𝗜 𝗯𝘂𝗶𝗹𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝘁𝗵𝗮𝘁 𝘀𝗰𝗮𝗹𝗲 𝗳𝗿𝗼𝗺 𝗠𝗩𝗣 𝘁𝗼 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗹𝗼𝗮𝗱, 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗺𝗼𝗰𝗸𝘂𝗽𝘀. I'm Victoria - Full-Stack Developer, Back-End Developer, Front-End Developer with AI App Development experience. 8+ years shipping React, Next.js, Node.js, NestJS, TypeScript, Python, PostgreSQL and Amazon Web Services systems for Deutsche Bank, RWE, Hitachi Energy, Erste Group Bank, PwC, Scale AI, Fortune and Deverus. 60+ Web Development deployments. 5M+ REST API calls daily. 99.9% uptime on Amazon Web Services. Full-Stack Development at production SaaS scale. Full-Stack Development, 60+ projects: React and Next.js frontends, Node.js and NestJS services, Python workers, PostgreSQL data models, REST API design, API Integration, Docker delivery on Amazon Web Services. Back-End Development, 40+ Node.js and NestJS services: REST API design, API Integration, PostgreSQL schema and query work, background jobs, queueing, caching, rate limiting, observability. Back-End Development in TypeScript and JavaScript, shipped on Docker and Amazon Web Services. Front-End Development, 8+ years: React and Next.js with TypeScript and JavaScript. Component architecture, state management, dashboards, admin panels, marketplaces, design systems. Front-End Development inside every Full-Stack Development engagement, handed over with tests and accessibility passes. Software Architecture: multi-tenant SaaS Development, service boundaries, REST API contracts, migration paths off legacy code, capacity and cost planning. Software Architecture review before a rewrite is proposed, not after it fails. Software Architecture across Node.js, NestJS and Python services. SaaS Development, 25+ products: subscription billing, tenant lifecycle, role-scoped access, audit trails, usage metering, onboarding flows. SaaS Development in React, Next.js, Node.js, NestJS and PostgreSQL. Web Development, 60+ projects in React, Next.js, Node.js, NestJS, TypeScript and JavaScript. Web Development covers Full-Stack Development, Front-End Development, Back-End Development, REST API and API Integration layers. Web Development at production scale on Docker and Amazon Web Services. AI App Development, 20+ projects: LLM features inside production products - retrieval pipelines, structured extraction, streaming responses, cost controls. AI App Development shipped as Full-Stack Development on Docker and Amazon Web Services. AI Agent Development, 15+ systems: agentic workflows with LangChain, LangGraph, Model Context Protocol, tool calling, human approval gates, error handling and retries. AI Agent Development in Python, Node.js and NestJS. AI Agent Development wrapped as REST API and API Integration inside existing stacks. INDUSTRY IMPACT FinTech - financial dashboards, predictive analytics, payment and billing flows in React, Next.js, Node.js, PostgreSQL and REST API. Enterprise energy and industry - operational platforms and reporting in React, Node.js, TypeScript, JavaScript and PostgreSQL. Healthcare - patient portals and HIPAA-aware data flows in React, Node.js and PostgreSQL, with audit logging and role-scoped access. AI-powered SaaS - AI App Development and AI Agent Development in Python, Node.js, Docker and Amazon Web Services. SELECTED ENTERPRISE EXPERIENCE - Deutsche Bank - React | TypeScript | JavaScript | Front-End Development | FinTech - RWE - React | Node.js | Full-Stack Development | Web Development | Enterprise Energy - Hitachi Energy - Python | AI App Development | PostgreSQL | Amazon Web Services - Erste Group Bank - React | Node.js | PostgreSQL | REST API | FinTech - PwC - Full-Stack Development | Node.js | React | Web Development - Klockner and Co - React | Node.js | API Integration | B2B Platform - Fressnapf - Next.js | Node.js | API Integration | Retail Platform - Scale AI - Node.js | Python | PostgreSQL | Amazon Web Services | Back-End Development - Fortune - React | Node.js | Next.js | PostgreSQL | API Integration - Deverus - Full-Stack Development | Node.js | React | PostgreSQL | SaaS Development TECHNICAL STACK React | Next.js | Node.js | NestJS | TypeScript | JavaScript | Python | PostgreSQL | REST API | API Integration | Full-Stack Development | Back-End Development | Front-End Development | Software Architecture | SaaS Development | Web Development | Docker | Amazon Web Services | AI App Development | AI Agent Development Full-Stack Development | Back-End Development | Front-End Development | Software Architecture | SaaS Development | AI App Development | AI Agent Development | Docker | JavaScript Software Architecture and SaaS Development reviews, Back-End Development and Front-End Development audits, AI Agent Development pilots. Software Architecture first. BUILDING A REACT + NODE.JS PRODUCT OR AN AI-POWERED SAAS UNDER REAL LOAD? SEND CONTEXT.