Kaiyi Lin

Full Stack Developer · Data Protection Officer · AI Integration Architect

Kempten (Allgäu), Germany Information Technology & AI Services Previously: Co-Founder & System Architect, Jingying Networking View More Education: Goethe University Frankfurt · TU Dresden — Computer Science View More
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Personal Details

  • Birthday:April 10, 1977
  • Marital Status:Married

About Me

I build software that works — and AI that actually gets used. With 10+ years of full stack development across Europe and Asia, I turn complex technical challenges into clean, reliable systems that people depend on every day.

I've shipped production systems across industries: e-mobility pricing platforms, ERP systems for automotive dealers, data protection management for law firms, and real-time learning platforms. I don't just write code — I own the outcome.

As a certified Data Protection Officer, I treat GDPR and the EU AI Act not as obstacles, but as quality standards. I've built AI systems that handle sensitive legal data securely — because trust is the foundation of any technology worth deploying.

My edge is bridging the gap between cutting-edge AI and real business operations. I help organizations move from AI experiments to AI infrastructure — where intelligent agents work alongside people as reliably as electricity.

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Experience

From Sept 2018 To Present

7+ years

Datenschutzkanzlei Lenz GmbHKempten(Allgäu) Germany

Senior Consultant, Udis-Certified Data Protection Officer, IT Manager

As a Senior Consultant and UDIS-certified Data Protection Officer (Datenschutzbeauftragter), I support private sector organizations in implementing GDPR-compliant data protection and IT security strategies. My responsibilities include leading data protection and AI compliance audits, conducting Data Protection Impact Assessments (DPIAs), assessing technical and organizational measures (TOMs), and advising on secure IT architectures and regulatory compliance. My strong technical background in full-stack software engineering and AI integration enables me to bridge legal, organizational, and technical requirements while designing and developing secure, privacy-by-design solutions.

From May 2014 To May 2018

4 years

Jingying Networking & Technology LtdShanghai, China

Cofounder & Chief Product Officer

Architected and led the development of a SaaS automotive operations platform used by dealerships and repair shops to manage daily business processes, spare parts inventory, procurement, and customer relations. Established an integrated B2B marketplace connecting dealers and workshops across multiple brands, enabling efficient parts sourcing and ordering. Delivery optimization features that streamlined dealer-to-workshop deliveries and improved operational efficiency. Managed cross-functional teams throughout the product lifecycle from strategy and architecture to deployment and continuous enhancement.

From Apr 2013 To Apr 2014

1 year

Nike ChinaShanghai, China

Business Consultant & Project Manager

Directed China operations for a global retail analytics and Big Data program, overseeing the integration of 10+ dealer ERP systems and the daily consolidation of sell-out data from over 6,000 stores nationwide. Built and maintained the core data platform that provided a comprehensive daily view of business performance across Mainland China, with granular analysis at the individual SKU level. Produced executive reporting and sales analytics for the Greater China sales operation team, translating complex data into actionable business insights. Worked closely with operational leadership to drive weekly strategy planning, performance reviews, and commercial decision-making.

From Mar 2010 To Mar 2013

3 years

WinChannel Technology LtdShanghai, China

Consultant Director and Product Manager

Built and led the development of the company’s flagship product, a large-scale Dealer Management System (DMS) serving leading FMCG brands across Mainland China. Directed the design and delivery of DMS that integrated hundreds of dealer networks—often exceeding 300 dealers and more than 30 distinct ERP systems—to connect, standardize, and consolidate daily sell-through and inventory data at SKU level. Established a nationwide market intelligence platform providing near real-time visibility into sales performance, inventory positions, channel operations, and regional market dynamics. Enabled commercial, sales, and marketing teams to make data-driven decisions, rapidly adapt execution strategies, optimize distribution, and respond to changing market conditions based on daily operational insights. The platform became a critical foundation for managing business performance in one of the world's largest and most regionally diverse FMCG markets.

From Jun 2005 To May 2009

4 years

EPCOS Electronic Components LtdZhuhai, China

SAP Inhouse Consultant & Team Leader

Led the SAP Key User and Super User team for the Greater China Data Center, serving as the primary liaison between business stakeholders, regional operations, and technical teams. Acted as an in-house SAP consultant, driving process optimization, requirements analysis, solution design, user training, testing, and change management across multiple business functions. Oversaw SAP FI/CO, MM, WMS, and APO modules, ensuring effective system utilization, process alignment, and operational continuity. Managed the development and maintenance of interfaces between SAP and enterprise applications, including Assist4, Spare Parts Management, HR, and other business-critical systems.

Education

Goethe University Frankfurt &
TU Dresden

Diplom — Computer Science

1999 – 2005

Beijing Foreign Studies University &
University of Macau

Double Bachelor — English & Portuguese

1994 – 1998

Skills & Languages

Python / Java
JavaScript / Vue.js
PostgreSQL / Oracle
React Native / Electron
AI Integration & Agent Orchestration
Data Analysis / Pandas / QlikView
GDPR / Data Protection (DPO) / KI-Act
PHP / WordPress / Bootstrap

Languages

  • GermanGerman: Business Fluent
  • EnglishEnglish: Business Fluent
  • ChineseChinese: Native
  • PortuguesePortuguese: Basic

Projects

E-Mobility Pricing Platform
Data Protection Management System
Customer Lifecycle Management System
Spare parts management for Automotive repair shops
Online Learning Platform
Campaign Manager
Master Data Management System
Classic Knowledge Sharing Platform
Sales Force Automation (FMCG)
Nike China Big Data Analytics
Dealer Management System
Website Auditor
Digital Assistant
AI-based Internal Knowledgebase
GDPR compliant Chatbot with integrated contract/agreement reviewer
E-Mobility Pricing Platform
E-Mobility Pricing Platform

E-Mobility Pricing Platform

Web App

A sophisticated real-time pricing simulation platform for electric vehicle charging infrastructure. The system combines a high-performance backend built with Java Hibernate and Oracle, a dynamic React-based frontend, and integrated Looker dashboards for advanced analytics. It enables operators to model and simulate diverse pricing strategies, instantly analyzing their impact on usage patterns, demand, and revenue. This empowers data-driven decision-making and supports the optimization of pricing models in real time.

  • Technologies: Java, Oracle, React, Looker
Data Protection Management System
Data Protection Management System
Data Protection Management System

Data Protection Management System

Web App

A comprehensive GDPR-compliant management platform designed for Data Protection Officers. It automates key compliance processes, including gap analysis, project and task management, system and vendor management, records of processing activities (RoPA), audits, document management, regulatory tracking, and reporting. The platform ensures full transparency of data processing activities and supports continuous compliance with European data protection regulations, enabling organizations to manage privacy obligations efficiently and with confidence.

  • Technologies: Django, Vue.js, Element-UI, Python
Customer Lifecycle Management System
Customer Lifecycle Management System
Customer Lifecycle Management System

Customer Lifecycle Management System

Web App

An integrated business platform that centralizes customer data, lead management, and communication through newsletters. It streamlines contract handling, time and expense tracking, contingent workforce management, and billing processes. Designed for operational efficiency, it provides a unified view of client interactions and supports structured, scalable business workflows.

  • Technologies: Django, Vue.js, Element-UI, Python
Spare parts management for Automotive repair shops

Spare parts management for Automotive repair shops

Web App

An enterprise-grade spare parts management solution tailored for automotive repair shops in China. The platform features an integrated mobile application for seamless ordering from wholesalers, alongside a desktop management console for comprehensive order and inventory management, built with React Native. Advanced analytics enable outlets to gain deep insights into operational efficiency, inventory performance, and cost optimization. This end-to-end solution streamlines procurement workflows, enhances visibility across the supply chain, and supports data-driven decision-making.

  • Technologies: FastAPI, TypeScript, React Native
Online Learning Platform
Online Learning Platform
Online Learning Platform
Online Learning Platform

Online Learning Platform

Websites

A scalable, real-time e-learning platform engineered for high concurrency, supporting live push notifications and collaborative learning. Built with Django and Celery, the system ensures a seamless experience for thousands of simultaneous users. By leveraging Redis as a dynamic caching and orchestration layer, the architecture optimizes load balancing and state management. This strategic use of caching minimizes latency and ensures high-performance stability, even when deployed on resource-constrained VPS environments.

  • Technologies: Django, Celery, Bootstrap 4, JavaScript
Campaign Manager
Campaign Manager

Campaign Manager

Web App

A centralized platform for planning, executing, and tracking marketing campaigns across multiple channels. It allows marketing teams to coordinate their efforts, manage assets, and monitor campaign performance from a single interface.

  • Technologies: Django, Vue.js
Master Data Management System
Master Data Management System
Master Data Management System

Master Data Management System

Tool

A robust Master Data Management system developed for the pharmaceutical industry. It manages product, Hospitals, Healthcare Personals, and regulatory data, ensuring data integrity and correctness across connected systems. The system provides a single source of truth for complex pharmaceutical data sets.

  • Technologies: Django, Python, HTML5, JavaScript
Classic Knowledge Sharing Platform
Classic Knowledge Sharing Platform

Classic Knowledge Sharing Platform

Web App

An internal knowledge sharing and community platform combining the features of a wiki and a Q&A site. It empowers employees to share expertise, document processes, and collaborate on solutions, fostering a culture of continuous learning within the organization.

  • Technologies: FastAPI, HTML5, JavaScript
Sales Force Automation (FMCG)
Sales Force Automation (FMCG)

Sales Force Automation (FMCG)

Mobile App

A mobile-first Sales Force Automation platform designed for the FMCG industry. It streamlines order management, route planning, and field reporting, enabling sales teams to work more efficiently and provide better service to retail partners.

  • Technologies: Django, JavaScript, Java, Swift
Nike China Big Data Analytics

Nike China Big Data Analytics

Application

A massive big data analytics project for Nike Greater China, covering over 6,000 retail locations. It involved extensive retail data mining, sales forecasting, and the development of executive dashboards using Python, Pandas, QlikView, and Tableau.

  • Technologies: Python, Pandas, QlikView, Tableau
Dealer Management System
Dealer Management System
Dealer Management System
Dealer Management System
Dealer Management System

Dealer Management System

Application

FMCG Market Intelligence & DMS Platform is a high-scale data solution designed to bridge the gap between brands and their decentralized distribution networks. By consolidating data from hundreds of independent dealers and dozens of heterogeneous ERP systems, the product delivers a comprehensive nationwide view of the supply chain. It provides critical, SKU-level insights into inventory positions and sales velocity, allowing brands to move from reactive management to proactive, data-driven market orchestration in the Mainland China region.

  • Technologies: Java, QlikView, Tableau
Website Auditor
Website Auditor
Website Auditor
Website Auditor

Website Auditor

Web App

An automated compliance scanning tool designed to verify GDPR and e-Privacy adherence. It performs deep scans of websites to detect consent banners, contact forms, newsletter subscriptions, cookies, and tracking scripts, providing detailed audit reports for legal and technical teams.

  • Technologies: django, PostgreSQL, pgvector
Digital Assistant

Digital Assistant

AI Agent

A sophisticated digital team assistant that functions as a central orchestration layer, coordinating multiple specialized subagents to execute operational workflows. It automates routine tasks, streamlines client interactions, and ensures consistent service delivery. By intelligently delegating responsibilities to domain-specific agents, it reduces manual workload, enhances team productivity, and improves overall operational efficiency.

  • Technologies: FastAPI, Postgresql, Vue.js
AI-based Internal Knowledgebase

AI-based Internal Knowledgebase

MCP

A centralized RAG-based (Retrieval-Augmented Generation) knowledge management system for corporate documents and professional literature. Utilizes LadybugDB and Qdrant vector database for high-precision semantic search and information retrieval.

  • Technologies: FastAPI, Python
GDPR compliant Chatbot with integrated contract/agreement reviewer
GDPR compliant Chatbot with integrated contract/agreement reviewer
GDPR compliant Chatbot with integrated contract/agreement reviewer

GDPR compliant Chatbot with integrated contract/agreement reviewer

AI Chatbot

A production-ready chatbot system built with privacy-first principles. It integrates local guardrails using Gemma, Flair, and Presidio to detect and anonymize personal data (PII) before processing, ensuring full GDPR compliance. Includes an integrated module for automated contract and agreement review.

  • Technologies: Vue.js, django

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