Julian Balling

Hi! I’m Julian — a results-driven software engineer and data scientist with over 5 years of experience designing and deploying machine learning-powered backend systems and intelligent document workflows. My academic foundation in Business Information Systems (MSc from the University of Leipzig) is complemented by hands-on expertise in developing scalable REST APIs, processing unstructured data, and deploying AI models for real-world applications.

I specialize in document understanding, information extraction, backend engineering, and search engine optimization (SEO), and I’ve worked with teams across healthcare, research, justice, and e-commerce. Whether it’s classifying technical figures in datasheets, detecting objects in scanned images, optimizing online stores for organic traffic, or building machine learning models for decision support — I bring creativity, structure, and precision to every project.

I am open to freelance, remote, and long-term collaborations that require technical excellence, scientific thinking, and a user-centric mindset.

Backend Development & API Design

- REST API development using FastAPI and Flask

- Dockerized microservices with PostgreSQL and SQLAlchemy

- API documentation using Swagger / OpenAPI

- CI/CD, versioning, error handling, and test coverage

Document Understanding & Automation

- Intelligent PDF extraction (tables, figures, meta-data)

- Table detection and parsing using OCR + heuristics

- Image region detection and classification in PDFs

- Information routing into relational databases (PostgreSQL)

- Image Processing & Object Detection

SEO Strategy & Technical Optimization

- Keyword research and semantic clustering

- Competitor analysis and on-page optimization

- SEO audits

- Structured data and schema integration

- Performance optimization (Lighthouse, Core Web Vitals)

- Metadata and sitemap automation

- Creation of a sustainable SEO strategy