Boris Lozanov Miladinov

Machine Learning Engineer

Work Experience

Machine Learning Engineer Intern β€” Heidelberg Materials Digital Hub Varna
October 2024 – Present
  • Developed and deployed AI-powered chatbots, enterprise search systems and document intelligence solutions using Azure OpenAI, embeddings and Azure AI Search.
  • Built data processing pipelines for chunking, metadata enrichment, indexing and retrieval.
  • Managed Azure SQL, Redis and Azure Search infrastructure to support production systems.
  • Improved retrieval accuracy and user experience through prompt engineering and search optimization.
Senior Porting Specialist β€” Sutherland Bulgaria (Avaya Project)
September 2023 – October 2024
  • First point of technical escalation and support for colleagues within the porting team.
  • Assisted system administrators with workstation configuration and maintenance.
  • Managed internal databases and operational reporting tools.
Porting Specialist β€” Sutherland Bulgaria (Avaya Project)
September 2022 – September 2023
  • Managed telecommunications porting projects for business customers.
  • Configured SIP trunks, IP addressing, MAC addresses and telephony infrastructure.
  • Coordinated legal and operational requirements to ensure successful project delivery.

Education

Vienna University of Technology
2017 – 2022
Bachelor’s Degree in Mechanical Engineering
  • Advanced Mathematics
  • Statistics
  • Programming in Python
  • Industrial Automation
Rakovski High School of Trade, Varna
2012 – 2017
Customs and Tax Administration
  • Economics
  • Statistics
  • Marketing
  • Accounting

Projects

Enterprise AI Assistants
Developed chatbot solutions connected to Azure AI Search for retrieval and summarization of business documents and meeting notes.
Home Media Server
Built and maintained a self-hosted media platform with automated file management, remote access, networking and custom Python tooling.
Walk That Walk
Personal game development project created with Unreal Engine and C++.
Additional Side Projects
Stock trading bot, meditation timer, board game utilities and various automation tools.
```