01 / Applied AI / Fine-tuning
Prompt Optimizer
Python · Unsloth · QLoRA
- Problem
- Vague prompts leave too much of the task undefined.
- Implementation
- An end-to-end Qwen2.5-3B pipeline using QLoRA: data generation, training, evaluation and publishing.
Petteri Kosonen / Turku, Finland
Practical systems.
Inspectable work.
I work where IT operations, security and applied AI meet.
Application Specialist at 2M-IT. B.Eng. student in cybersecurity. Outside day-to-day support, I build tools and investigate how AI systems behave — with code and evidence you can examine.
01 / Selected work
From question to implementation.
Three ways I approach practical engineering. The source is part of the story.
02 / Research / Agent reliability
VET Pilot
Python · Evaluation · Verified trajectories
- Problem
- A convincing agent response is not the same as a verified software task.
- Implementation
- Challenge tasks and annotated trajectories for studying software-agent reliability.
03 / IT operations / Diagnostics
VDI Performance Diagnostic
PowerShell · Troubleshooting
- Problem
- VDI performance problems need a repeatable diagnostic starting point.
- Implementation
- A PowerShell diagnostic tool for investigating virtual desktop environments.
02 / Technical focus
Operations inform the experiments.
- Operations & identity
- Microsoft 365, Entra ID, Intune, Active Directory, PowerShell and troubleshooting.
- AI engineering
- Python, QLoRA, Unsloth, HuggingFace, prompt security and agent evaluation.
03 / Interactive experiment
Neural Cortex
A different way to explore the connections between my work. Optional, graphics-intensive, and only loaded when you choose to start it.
04 / Contact
Let’s talk about the work.
IT operations, security or practical AI engineering.