Patrick Lenert
GenAI Fullstack Freelancer
Experience
GenAI Fullstack Freelancer
Palema
- Techstack: Next.js, React, Typescript, ChromaDB, Embedding Models, OpenAI API
- Development of an AI-based matching system for a recruiting company for targeted candidate search in over 370,000 LinkedIn profiles.
- Architecture: Next.js frontend, ChromaDB as vector database, BGE-ICL for embeddings and GPT-4.1 for semantic search via tool calls.
- Objective: To make it possible to find qualified candidates in seconds and automate manual pre-selection.
- Managing 3 Linux Ubuntu Servers for clients with OSS Software based on Docker Containers
Senior Fullstack Developer (Freelance)
Orbit Ventures (Hays)
- Techstack: Nuxt, Vue 3, Typescript, Azure Postgres, Azure Web App Service, Azure Functions
- Further development of a Nuxt web application with Vue 3 as part of an A/B testing project
- Implementation of 3 different versions with random traffic distribution
- Development of numerous Nuxt pages and reusable Vue components
- Use of an Azure Postgres database and Azure Deployment Slots for efficient deployments
- Implementation of registration and login functionality using Nuxt and Azure
- Storage of page views via Azure Functions
- Provision of several CSV exports for the product manager to analyze the A/B test results
AI Developer (Festanstellung)
Ryze Digital
As Lead Developer in the AI Taskforce, I have successfully developed two AI products and an AWS project:
Intelligent Chatbot Integration (React & Botpress LLM API):*
Techstack: React, Node.js, Botpress API
Development and deployment of a context-aware AI solution using Botpress as a knowledge base engine
Development of customized React components for seamless integration of the chatbot into the existing architecture of the company website
Optimized chatbot response processing and state management with React hooks and context API
Enterprise ChatGPT with Vector database integration:*
Techstack: React, Vector Database (LanceDB), Docker Compose
Extensive customization of an open-source LLM platform with React to create an enterprise-ready and private knowledge management system
Development of custom connectors for Microsoft SharePoint and Confluence to automatically extract, process and transform enterprise documentation into Vector embeddings
Implementation of LanceDB as a vector database solution for efficient semantic search
AWS automation for publisher:*
Techstack: AWS SDK, Node.js, Typescript, AWS Transfer, AWS DynamoDB, AWS Lambda
Using the AWS SDK, I designed and implemented a Node.js microservice that utilizes AWS Transfer Family, S3, EventBridge, DynamoDB, and Lambda Services from AWS to automate a process for a publishing client's magazines. The microservice is dockerized and the AWS infrastructure is parameterized with Terraform as Infrastructure as Code
Vue Developer (Freelance)
Servinga GmbH
- Techstack: Vue 3, Javascript, Vuex, Tailwind CSS
- Redesign of the front end
- Migration from Vue 2 to Vue 3
- With Vue 3 (Javascript), Vuex, Tailwind CSS I have developed a platform that allows customers to buy and manage virtual private servers easily and cost-effectively
Fullstack Developer (Festanstellung)
Check24
- Techstack: React, MobX, Vitest, Cypress, Bitbucket CI
- Development of responsive user interfaces with React 18 (Javascript / Typescript) and MobX
- Testing tickets on up to eight screen sizes, including cell phones, tablets and desktops
- Unit tests and smoke tests in Vitest and Cypress
Vue / Shopware Developer (Freelance)
Realum.cloud GmbH
Increased sales for a chain of butcher shops by developing an immersive 3D shopping experience that allows customers to select meat products directly from the perspective of a realistic shop counter.
- Techstack: Nuxt.js, Vue 3, Shopware 6, Shopware API
- Successful integration of Shopware 6 to efficiently manage product catalogues and direct customer interaction via a 3D product view; targeted customisation and optimisation of Nuxt.js and Vue.js for a smooth user experience.
- In-depth knowledge of the Shopware 6 API: Implementation to efficiently query and manipulate data and ensure robust, scalable product integration.
Fullstack Developer (Freelance)
Posterlab GmbH
- Techstack: Vue, Node.js (Javascript / Typescript)
- CI/CD: Gitlab Pipelines
- Development of an MVP for a scientific poster canvas with Vue and Nuxt 3
- The MVP was implemented with Nuxt.js (Vue) with various AWS services
Fullstack Developer (Festangestellt)
Commerzbank AG
- Techstack: Kotlin, Spring Boot WebMVC and JPA, Spring Boot Security, Angular 12 (Javascript / Typescript)
- Focus on fullstack development with Kotlin and Angular 10
- Backend APIs developed with Kotlin and Spring Boot
- Docker containers hosted and set up in a Kubernetes cluster on the Google Cloud Platform (GCP)
Development of a modern, self-managed identity solution. This project, based on the Hyperledger Aries framework, is at the forefront of digital identity management and is financially supported by the Federal Ministry of Economics and Innovation.
Backend Entwicklung
Solactive AG
- Techstack: Python, Apache Airflow, Automations, NoSQL
- Reducing time spent on tedious tasks for the finance team by automating workflows with Python and Apache Airflow
- Digitizing a manual process in Excel into an automated process with data analysis using Pandas and the No SQL database Cassandra
- Development and maintenance of internal libraries and FTP servers
Summary
As a fullstack developer, I develop AI applications with a focus on LLMs and semantic search with vector databases (RAG).
Languages
Education
University Mainz
Bachelor of Science, Data Science and Machine Learning, Technology Analysis of Vue.js with Javascript and Typescript · Computer Science · Mainz, Germany · 1.8
Certifications & licenses
HashiCorp Certified: Terraform Associate (003)
HashiCorp
Graph Developer Associate
Apollo
Corda Certified Developer
R3
AWS Cloud Practitioner
AWS
Microsoft Azure AI-900
Microsoft
Vue.js Certified Developer
Vue Academy
Whatsapp Certified Associate HCTAO-003
Similar Freelancers
Discover other experts with similar qualifications and experience