Stefan Zhelev
Data Professional
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Period:
Jul 2010 - Aug 2016 (6 years 2 months)
Position:
Service Level Management and Reporting
Organization:
Ericsson, H3G, Engie, GRDF, Datwyler accounts
Responsibilities:
Led performance management for telecommunications and energy sector clients, maintaining 99.8% SLA compliance.
Achievements:
Managed SLA reporting for Fortune 500 clients including Ericsson and Engie, consistently meeting 100% contractual obligations over 6 years. Automated reporting for enterprise clients reducing operational costs by 40% across multiple accounts.

Work Experience

Octopyth Data Engineering and Operations 1 year 11 months
MiFinity Business Intellignece Manager (1 direct report) 7 months
Nexo Senior Data Engineer (2 direct reports) 1 year 10 months
Rank Interactive Senior Data Analyst 1 year 8 months
IBM Predictive Analytics and Reporting 1 year 1 month
Hewlett-Packard Service Level Management and Reporting 6 years 2 months