Boris Lozanov Miladinov
Machine Learning Engineer
Work Experience
Machine Learning Engineer Intern β
Heidelberg Materials Digital Hub Varna
October 2024 β 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 β 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 β 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 β 2022
Bachelorβs Degree in Mechanical Engineering
- Advanced Mathematics
- Statistics
- Programming in Python
- Industrial Automation
Rakovski High School of Trade, Varna
2012 β 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.