Freelancer profile translated to English.

Description

Welcome and thank you for your interest in my profile. As a senior fullstack developer and UI/UX designer, I enjoy creating thoughtful and modern web solutions that run reliably and add real value. If you are looking for professional support for your project, I am happy to help.

WHAT I CAN DO FOR YOU

★ Fullstack development of modern web apps with React, Next.js, Angular, and NestJS

★ Scalable backends with Node.js, real-time features, and REST & GraphQL APIs

★ Design systems, high-performance frontends, and appealing UI/UX

★ AI-powered development & integration of LLMs, pipelines, and intelligent automations

★ CMS systems (WordPress, Strapi) and migrations of extensive legacy systems

★ Consulting & implementation of accessibility according to WCAG 2.2 and BITV 2.0

Languages

German
Native or bilingual

Workplace preferences

Can work on-site

München (up to 50km)

OmniVision GmbH
Fullstack development of a web platform for customer service and CRM
PHARMACEUTICALS INDUSTRY
June 2025 - Today (1 year and 2 months)
München, Germany
For OmniVision GmbH, I conceptualized and developed an internal web platform for the customer service of a medium-sized group. The application bundles customer data, orders, and conditions from Microsoft Dynamics 365 into a modern, high-performance interface and provides the service team with uniform, fast access to all relevant processes. I am responsible for the entire stack, from the UI and API to deployment.

Competencies:
Conception and implementation of a high-performance React interface for the service team
Connection of Microsoft Dynamics 365 via Microsoft Graph and Azure AD
Development of a Node.js/Express API with connection to MS SQL Server and SharePoint
Automated deployment via Docker, Nginx, and SSH/SFTP
Technologies:
Frontend: React, TypeScript, Vite, Tailwind CSS 4, Radix UI, TanStack Query/Table, Zustand
Backend: Node.js, Express, Microsoft Dynamics 365, Microsoft Graph, Azure AD, MS SQL Server, SharePoint
DevOps: Docker, Nginx, automated SSH/SFTP deployment, Git
React.js Node.js Dynamics 365 Tailwind CSS TypeScript
-
Fullstack development of a scalable live streaming platform with real-time interaction
BANKING AND INSURANCE
June 2025 - Today (1 year and 2 months)
München, Germany
For a client in the financial sector, I conceptualized and implemented a live streaming platform that combines real-time chat, live polls, and dynamic ad insertions for an audience of several tens of thousands to hundreds of thousands of viewers. My focus was on a horizontally scalable WebSocket architecture with multiple API instances behind an Nginx load balancer and Redis as a pub/sub broker. I am responsible for the entire stack, from the viewer frontend and admin panel to the API, infrastructure, and deployment.

Competencies:
Conception and development of a horizontally scalable WebSocket architecture
Development of viewer frontend and admin panel with React and TypeScript
Backend with NestJS, Socket.IO, and Redis Pub/Sub for real-time features
Infrastructure setup with Nginx, TLS termination, and sticky sessions
Automated deployment, load testing, and monitoring

Technologies:
Frontend: React, TypeScript, Vite, Tailwind CSS 4, TanStack Query, Radix UI, Socket.IO-Client, Sentry
Backend: NestJS 11, Node.js 24, Socket.IO with Redis adapter, JWT, Express
Infrastructure: Nginx (TLS termination, sticky sessions, load balancing), Redis cluster, Let's Encrypt
DevOps: Turborepo monorepo, Docker Compose (Dev/Test/Prod), automated SSH deployment, load testing, Git
React.js NestJS WebSocket AWS Redis
Gutenberg Museum
Implementation of an interactive exhibit
EDUCATION AND E-LEARNING
October 2024 - April 2025 (6 months)
München, Germany
For the Gutenberg Museum, I developed an interactive selfie station that transforms visitors' images into woodcut motifs in the style of historical printmaking using AI-powered image processing. The finished works are printed on-site and also made available in an online gallery. An important part of the solution was intuitive, fault-tolerant operation that remains robust even during museum operation.

Competencies:
Conception and implementation of the selfie station as a web frontend
Integration of an AI service for image transformation into woodcut motifs
Automated on-site printing and online availability of images
UI/UX design for intuitive use in museum operations
Technologies:

Frontend: HTML, CSS, TypeScript, Tailwind, React
Backend: Node.js, Python, AI-powered image processing
React.js Strapi Artificial Intelligence Node.js Docker

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IT Specialist (Application Development)
IHK Munich
2016

Niklas Wagner

Fullstack Web Developer & UX/UI Expert

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