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Hi, I’m Florian Krueger, a Senior Full-Stack Software Engineer based in Neuhausen/Spree, Germany. With 10+ years overseeing the full SDLC, I build scalable web apps, APIs, and AI-enabled systems using React/Next.js on the frontend and Python/Node.js on the backend, deployed across AWS, GCP, and Azure. I enjoy turning complex problems into robust, user-friendly products through collaboration with product, design, and data science teams. I’m passionate about continuous learning and innovation, with hands-on experience in healthcare workflows, real-time analytics, AI/LLM integration, and observability. I focus on delivering high-quality code, measurable outcomes (performance, reliability, and cost efficiency), and strong alignment with privacy and security requirements.…Hi, I’m Florian Krueger, a Senior Full-Stack Software Engineer based in Neuhausen/Spree, Germany. With 10+ years overseeing the full SDLC, I build scalable web apps, APIs, and AI-enabled systems using React/Next.js on the frontend and Python/Node.js on the backend, deployed across AWS, GCP, and Azure. I enjoy turning complex problems into robust, user-friendly products through collaboration with product, design, and data science teams. I’m passionate about continuous learning and innovation, with hands-on experience in healthcare workflows, real-time analytics, AI/LLM integration, and observability. I focus on delivering high-quality code, measurable outcomes (performance, reliability, and cost efficiency), and strong alignment with privacy and security requirements.

Florian Krueger

Full Stack Developer, Web Developer, Front-End Developer, +2

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Hi, I’m Florian Krueger, a Senior Full-Stack Software Engineer based in Neuhausen/Spree, Germany. With 10+ years overseeing the full SDLC, I build scalable web apps, APIs, and AI-enabled systems using React/Next.js on the frontend and Python/Node.js on the backend, deployed across AWS, GCP, and Azure. I enjoy turning complex problems into robust, user-friendly products through collaboration with product, design, and data science teams. I’m passionate about continuous learning and innovation, with hands-on experience in healthcare workflows, real-time analytics, AI/LLM integration, and observability. I focus on delivering high-quality code, measurable outcomes (performance, reliability, and cost efficiency), and strong alignment with privacy and security requirements.…Hi, I’m Florian Krueger, a Senior Full-Stack Software Engineer based in Neuhausen/Spree, Germany. With 10+ years overseeing the full SDLC, I build scalable web apps, APIs, and AI-enabled systems using React/Next.js on the frontend and Python/Node.js on the backend, deployed across AWS, GCP, and Azure. I enjoy turning complex problems into robust, user-friendly products through collaboration with product, design, and data science teams. I’m passionate about continuous learning and innovation, with hands-on experience in healthcare workflows, real-time analytics, AI/LLM integration, and observability. I focus on delivering high-quality code, measurable outcomes (performance, reliability, and cost efficiency), and strong alignment with privacy and security requirements.

Available to hire

Hi, I’m Florian Krueger, a Senior Full-Stack Software Engineer based in Neuhausen/Spree, Germany. With 10+ years overseeing the full SDLC, I build scalable web apps, APIs, and AI-enabled systems using React/Next.js on the frontend and Python/Node.js on the backend, deployed across AWS, GCP, and Azure. I enjoy turning complex problems into robust, user-friendly products through collaboration with product, design, and data science teams.

I’m passionate about continuous learning and innovation, with hands-on experience in healthcare workflows, real-time analytics, AI/LLM integration, and observability. I focus on delivering high-quality code, measurable outcomes (performance, reliability, and cost efficiency), and strong alignment with privacy and security requirements.

Skills

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Expert

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Language

English

Fluent

Work Experience

Senior Full Stack AI Engineer at Simple Online Healthcare

August 1, 2024 - September 1, 2025

Delivered a data-driven alerting web app (React/Next.js + Express / Python), secured with Amazon Cognito and API Gateway; containerized services on EC2 with real-time notifications via Socket.IO for clinician workflows. Designed Python task schedulers and async pipelines to process high-volume Meltwater social streams, maintaining stable ingest latency under load. Built a real-time analytics dashboard (FastAPI + React/Next.js) with interactive drill-downs for rapid triage during spikes. Implemented AI-driven sentiment and intent analysis with AWS Bedrock and GPT-4 (guardrails; batch/stream modes) to improve signal quality and reduce alert noise. Modeled data across PostgreSQL (RDS) and DynamoDB, and deployed analytics microservices on GCP for batch/stream workloads. Established CI/CD with Jenkins and GitHub Actions; added observability and SLOs; collaborated with Data Science on feature stores and evaluation harnesses.

Senior Full Stack Engineer at Microsoft

January 1, 2022 - July 1, 2024

Led frontend architecture for real-time analytics and data visualization platforms used by internal product teams and enterprise customers; built TS + React/Next.js UIs with reusable component libraries and D3/Recharts, improving page load (p75 TTI) and increasing weekly active users. Implemented robust state management with Redux Toolkit/RTK Query and Apollo Client (GraphQL); introduced code-splitting, lazy loading, and HTTP caching to keep Core Web Vitals in the good range under peak traffic. Designed and delivered scalable backends in Python (FastAPI) and Node.js, containerized with Docker and deployed on AKS; added async workers (Celery/Redis) and streaming endpoints (Server-Sent Events/SignalR) for live dashboards with sub-second updates. Drove enterprise digital-asset accounting pilot integration (Azure -> QuickBooks Online) to improve reconciliation cycle time and scale transactions. Modeled data (PostgreSQL/Cosmos DB) with targeted indexes and read/write segregation; implemente

Full Stack Developer at Google

January 1, 2020 - December 1, 2021

Developed a high-performance marketing/commerce web platform; built a modular design system and reusable UI components (React JS) with Storybook, reducing feature lead time and improving maintainability. Architected REST and asynchronous APIs using Django and FastAPI; introduced background jobs and pagination/streaming to cut P95 latency. Integrated React frontend with Django/FastAPI backends via optimized endpoints, JWT auth, and SSE/WebSocket for real-time updates. Modeled relational and document data (PostgreSQL, MongoDB) with proper indexing and read replicas to reduce latency. Led performance/load testing (Locust/pytest) and set SLOs/dashboards; automated inventory + order-tracking workflows; deployed via CI/CD to GCP (GKE/Cloud Run) with canary releases and feature flags. Collaborated with cross-functional teams to mentor on API contracts, React performance, and DB optimization.

Frontend Developer at Amazon (AWS)

August 1, 2015 - December 1, 2019

Shipped production React interfaces for customer-facing console experiences and partner portals; implemented a component-based architecture and JSX to deliver fast UIs at scale. Drove Core Web Vitals improvements (LCP/CLS) via code-splitting, preloading critical assets, and pruning render-blocking CSS/JS; reduced bundle size ~20% through tree-shaking. Built a shared UI library/design-token system with Storybook and automated visual regression tests; championed WCAG 2.1 AA accessibility improvements. Implemented SSR for critical pages, built secure auth flows (OAuth2/OpenID Connect), and integrated with back-end services via REST/GraphQL; introduced CI/CD guardrails (Jest, Playwright) and canary releases. Mentored across APAC/EU, focusing on React patterns, performance, and DB query optimization.