Open to opportunities

Rostislav Tyurin

@rostislavtyurin

Message

Technical Support Specialist skilled in VoIP and Microsoft 365 issue resolution.

Bulgaria

Message

What I'm looking for

I am seeking a mid-level technical support role focused on VoIP or Microsoft 365, with collaborative teams, clear escalation paths, and opportunities to validate fixes and improve processes.

I am a results-oriented Technical Support Specialist with over four years' experience resolving complex VoIP and Microsoft 365 issues, including SIP/RTP troubleshooting, PBX configuration, and ticket lifecycle ownership. I consistently collaborate with QA and development teams to reproduce, validate, and close issues while guiding end users through clear, step-by-step resolutions.

I am trilingual (English C2, Russian native, Bulgarian native) and have supported clients across inbound/outbound operations, documentation, and cross-language communication. My background includes hands-on testing with Postman, basic SQL/PostgreSQL, networking fundamentals, and familiarity with Windows/Linux and Active Directory, backed by certifications in Office 365, IP Telephony, Postman API testing, and Agile methodologies.

Experience

Work history, roles, and key accomplishments

Client Support & Operations

BG-Fortuna

Jan 2022 - Dec 2025 (3 years 11 months)

Managed inbound/outbound client communication in Bulgarian, Russian and English, prepared and coordinated property documentation, contracts and translations.

client support Operations Documentation Contract Management Translation Multilingual Communication CRM

Microsoft Technical Support Engineer

Concentrix

Jan 2021 - Dec 2022 (1 year 11 months)

Resolved Outlook, Teams, OneDrive and Microsoft 365 account and license issues, performed diagnostics and escalated complex cases to L2/L3 engineering teams.

Microsoft 365 Outlook Teams Troubleshooting Escalations Ticketing

Technical Support Specialist

Zadarma

Jan 2018 - Dec 2021 (3 years 11 months)

Diagnosed and resolved SIP/RTP and VoIP issues, configured PBX, call routing and IVR flows, and collaborated with QA and development to reproduce and validate fixes.

SIP RTP Routing IVR Root Cause Analysis