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Wenjun Pan

@wenjunpan

I build production-ready GenAI, RAG, and agent systems for banking and healthcare.

What I'm looking for

I'm looking to build robust, production-ready GenAI solutions that connect LLMs, RAG, and agent architectures with scalable software, data, and cloud platforms.

I've built production-ready AI and data platforms for attempto, including a banking copilot that uses multi-agent features and RAG to help advisors summarize and visualize customer information. I develop end-to-end capabilities across Python, Java, Next.js, FastAPI, LangGraph, LangChain, and vector databases.

Previously, I led Java and Python development for a major European medical center, building scalable data pipelines, microservices, ML/NLP applications, and a RAG assistant for clinical staff. Across banking, healthcare, insurance, and logistics, I've combined software architecture, quality engineering, Scrum leadership, and cloud delivery over 14 years.

Experience

Work history, roles, and key accomplishments

AK

GenAI Application Engineer

Attempto GmbH & Co. KG

Jul 2024 - Jul 2025 (1 year)

Implemented GenAI features with multi-agent systems and developed a RAG solution for banking advisors. Integrated GUI components with AI backend services.

Python Java Next.js LangGraph Vector Databases Gradio fastAPI

AK

Founding Senior Software Architect

Attempto GmbH & Co. KG

Mar 2020 - Jun 2024 (4 years 3 months)

Led technical and functional leadership for Java and Python software development, introduced Scrum, and built scalable architectures for data pipelines and ML solutions. Designed a RAG-based assistant system for medical staff.

Python fastAPI Streamlit AWS Gitlab

SG

Project Manager and Developer

Spinendos GmbH

Mar 2019 - Feb 2020 (11 months)

Conceived REST APIs for serial number and master data mapping during ERP system introduction. Coordinated development and test planning.

MSSQL Jenkins REST APIs Trello

AS

Senior Software Engineer

Nov 2016 - Feb 2019 (2 years 3 months)

Planned, implemented, and maintained complex test concepts using TDD/BDD. Extended and maintained PSLife interfaces and plausibility components.

React Cucumber TestNG Docker Drools SAFe

RL

Full-Stack Software Engineer

Rhenus Logistics

Aug 2012 - Oct 2016 (4 years 2 months)

Developed and implemented frontend and backend components for the RML Printing project.

Groovy Hibernate JavaScript JMS Scrum

Education

Degrees, certifications, and relevant coursework

UB

Universität Bremen

Diplom-Informatiker, Artificial Intelligence and Wearable Computing

2007 - 2011

Diplom-Informatiker with a focus on Artificial Intelligence and Wearable Computing, completed in 2011.

Tech stack

Software and tools used professionally

GitLab

Jenkins

DB

Next.js

Jira

JavaScript

Java

Streamlit

Gradio

FastAPI

Trello

Vercel

TestNG

LangChain

Cosmos

LangGraph

SAFe

Availability

Looking for a job

Location

Germany

Authorized to work in

Website

wenjun-pan.vercel.app

Portfolio

wenjun-pan.vercel.app

Salary expectations

80k+ EUR

Job categories

AI Engineer Software Architect Technical Lead Full Stack Engineer Backend Engineer Data Engineer Machine Learning Engineer Scrum Master Project Manager Artificial Intelligence Engineer AI ML Engineer AI Engineering Specialist AI Engineering Artificial Intelligence Engineering Python AI Engineer AI Engineering Jobs

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