Lanfermann.DEV
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Justin Lanfermann

Justin Lanfermann

Full-Stack Dev
Level 1015% to next level
Munich, Germany
20 years old
Community Connector
Open Source Champion
GenDev Scholar
Model Tuner
EuroMesh Innovator
Automation Alchemist
Learning Architect
Cloud Navigator
Tutor Titan
AI Enthusiast
Container Commander
Log Aesthete
Art Artisan

Core Skills

  • Python icon

    Python

    95
  • Java icon

    Java

    85
  • Groovy icon

    Groovy

    85
  • Language Models icon

    Language Models

    85
  • Docker icon

    Docker

    80
  • TypeScript icon

    TypeScript

    75
  • Swift icon

    Swift

    65
  • C icon

    C

    60

All Skills

Beautiful Soup 4
Django
FastAPI
Many More
Mock
NumPy
Pandas
Pipenv
Playwright
Pydantic
Pydantic AI
Pytest
PyTorch
Selenium
Tenacity
TensorFlow
tqdm
unittest
Gradle
Maven
Spring Boot
Gradle
Groovy on Grails
Maven
Spock
Spring Boot
Advanced Prompting
Agentic Workflows
Anthropic Models
Fine-Tuning
Function Calling
OpenAI Models
Parsing And Verifying
RAG
Vision
Containerization
CUDA Containers for ML
Docker Compose
Lambda Containers
(Reverse) Proxying
Configuration
Firewalls
Home Server
Nginx
SSH
System Administration
TCP
Tunneling
UDP
WebSockets
Memory Management
Pointers
Safe Programming
Bootstrap
Browser Extensions
Next.js
Shadcn/ui
Tailwind CSS
Vite
Face Recognition
Image Classification
MobileNet
Pose Estimation
PyTorch
ResNet
Stable Diffusion
TensorFlow
YOLO
Amplify
API Gateway
Aurora
Batch
Certificate Manager
CloudFormation
CloudFront
CloudShell
CloudTrail
CloudWatch
Cognito
Cost Explorer
DynamoDB
EC2
EC2 Auto Scaling
EC2 Image Builder
ECR
Elastic Beanstalk
Elastic Container Service
Elastic Kubernetes Service
ElastiCache
EventBridge
Fargate
Fargate Classic
Google Places API
IAM Identity Center
Private Certificate Authority
RDS
Resource Explorer
S3
SageMaker
Secrets Manager
Serverless
Simple Queue Service
Textract
Vercel
VPC
WAF
MongoDB
PostgreSQL
Redis
SQL
Apple Ecosystem
iOS Development
MapKit
SwiftData
SwiftUI

Career & Education Quest

Software Developer & System Administrator

Westend61 GmbH · Working Student

A hybrid role in technology and infrastructure, architecting AI-powered automation while safeguarding the Munich headquarters IT backbone.

Head of Software Development

TUM.ai · Student Initiative

Co-leading TUM.ai's Software Development department alongside another Head of SWE: setting technical direction, managing the dev team, and building the recruiting platform for Europe's leading AI student initiative.

Software Developer

TUM.ai · Student Initiative

As part of TUM.ai's Development Team, I help build the digital infrastructure that powers Europe's leading AI student initiative. From the public website to internal tools for managing our 100+ member community, I work on systems that support everything, from our flagship Makeathon to the AI E-Lab startup incubator.

Tutor, Computer Networks and Distributed Systems

Technical University of Munich

I guide students through the network stack, from physical signals to application protocols, across two weekly two-hour tutorials that pair protocol theory with structured problem-solving and exercise sheets.

Bachelor of Science in Informatics

Technical University of Munich

As part of my Informatics studies at TUM, I am deepening my knowledge in theoretical foundations and practical applications of software engineering, algorithms, and computer systems.

Tutor, Operating Systems and Systems Software

Technical University of Munich

I guided second-year students from low-level C into the abstractions that power modern operating systems, pairing every concept with tracing, debugging, and measurement.

Featured Projects

Achievements