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Harun Qasimi

@harunqasimi

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I build secure Python backend tools, data pipelines, and security assessment applications.

Germany

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What I'm looking for

I'm looking to contribute to security operations, log analysis, incident response, and secure software development while continuing my master's studies in computer science.

I've built Python backend tools and automated data pipelines at Business Data Solutions, including an AI-powered web-scraping tool using the Gemini API and PostgreSQL, plus Apache Airflow ETL workflows with Grafana monitoring.

I've also worked on vulnerability and security-focused software, migrating a CVE-processing tool at Infosim and creating a NIS2 security-assessment web application with Flask, SQLite, scoring, reporting, and access controls. I'm continuing to deepen my practical security knowledge through TryHackMe labs in network security, vulnerability analysis, and incident response.

Experience

Work history, roles, and key accomplishments

Python Developer

Business Data Solutions GmbH & Co. KG

Feb 2026 - Sep 2026 (7 months)

Developed an AI-powered web scraping tool using Gemini API, structured data extraction, and PostgreSQL persistence. Designed and maintained database tables and data quality monitoring.

Python Gemini API Web Scraping PostgreSQL Data Quality Management

Werkstudent Softwareentwicklung

Business Data Solutions GmbH & Co. KG

Sep 2025 - Feb 2026 (5 months)

Implemented Apache Airflow DAGs for automating ETL processes and developed a Python tool for database validation and automated error notifications. Optimized and monitored data pipelines with Grafana dashboards.

Airflow Python ETL PostgreSQL Grafana Data Pipelines

IT-Werkstudent

s.Oliver Bernd Freier GmbH & Co. KG

Nov 2024 - Aug 2025 (9 months)

Provided 1st-level IT support and performed error analysis on Windows systems, network, and server infrastructure.

IT Support Windows Network Infrastructure Server Infrastructure

Praktikant Softwareentwicklung

Infosim GmbH & Co. KG

Apr 2024 - Sep 2024 (5 months)

Migrated a vulnerability EoX tool from XML (CVRF) to JSON (CSAF) with Java refactoring, CVE data processing, and JUnit tests. Developed a REST client with token-based authentication using Jakarta EE and OpenAPI Generator.

Java XML JSON CVE Junit REST Java EE OpenAPI Scrum Jira

Education

Degrees, certifications, and relevant coursework

Frankfurt University of Applied Sciences

Master of Science, Informatik

2026 -

Master's program in General Computer Science starting in October 2026, with focus on IT security, networks, and secure software development.

Hochschule für Angewandte Wissenschaften Würzburg-Schweinfurt (THWS)

Bachelor of Engineering, Informatik

2021 - 2026

Grade: 1.6

Bachelor of Engineering in Computer Science from October 2021 to February 2026, with focus on software development, databases, IT security, networks, and algorithms. Bachelor thesis grade: 1.6.