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L1 Technical Support Specialist

City of residence:
Babai
Ready to work:
Remote

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Liubarskij Yevhen
Junior Technical Support Specialist (L1) — Hosting, DNS & Web Troubleshooting
Location: Kharkiv, Ukraine (Remote) • Phone / Telegram: [open contact info](look above in the "contact info" section) / @LubzHe •
Email: [open contact info](look above in the "contact info" section)

SUMMARY

Technically minded aspiring L1 Technical Support Specialist with hands-on knowledge of networking
fundamentals (DNS, HTTP/S, TCP/IP), Linux CLI, and web diagnostics. Experienced in troubleshooting
browser-level and network issues using Chrome DevTools and command-line utilities. Strong written
English (Intermediate / B1), detail-oriented, and fully available for evening shift schedules to provide clear,
patient written support to international clients.

TECHNICAL SKILLS

Domain Tools & Knowledge

Web & Hosting Basics DNS records (A, AAAA, CNAME, MX, TXT, NS), DNS
propagation, HTTP/HTTPS protocols, status codes
(2xx, 3xx, 4xx, 5xx), SSL/TLS fundamentals, cookies,
cache, redirects.

Diagnostics & DevTools Chrome DevTools (Network, Console, Application
tabs), ping, traceroute, nslookup, dig, cURL.

OS & Command Line Linux (Ubuntu/Debian), Bash CLI basics, file system
navigation, permissions, basic log inspection.

Ticketing & Workflow Jira (structured bug reporting, reproduction steps,
issue escalation), reading technical documentation.

Additional Tech Blockchain transaction lifecycle basics, EVM gas &
TRON bandwidth mechanics, block explorers.

PRACTICAL TROUBLESHOOTING & LAB EXPERIENCE

Independent Web, DNS & Network Diagnostics Practice Self-Directed Labs & Troubleshooting
Web & Browser Troubleshooting: Diagnosed HTTP request/response headers, redirect loops, CORS
errors, SSL/mixed-content warnings, and client-side cache/cookie conflicts via Chrome DevTools.
DNS & Connectivity Verification: Practiced domain resolution checks, routing path tracing, and
endpoint availability testing using dig, nslookup, traceroute, and cURL.
Technical Escalation & Bug Reporting: Compiled clear, reproducible Jira bug reports containing
environment details, step-by-step reproduction paths, network logs, and annotated screenshots.

EDUCATION & SELF-DEVELOPMENT

National Aerospace University "Kharkiv Aviation Institute" — G5 Engineering and Programming of
Infocommunication Systems (2nd-year student)
Continuous Technical Learning: Focused self-study in Computer Networks, Linux System
Administration, Web Infrastructure (DNS, HTTP/S, SSL), and technical customer support workflows.

LANGUAGES & AVAILABILITY

English: Intermediate (B1) — Confident written communication, customer correspondence, and
technical documentation comprehension.
Ukrainian: Native.

[First Name] [Last Name] — Technical Support Specialist (L1) Page 1 of 1

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