Dmytro

DMYTRO ZEMLIN
Odesa, Ukraine (remote) • [open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section)
github.com/Solaree • Telegram: @veuxsu

PROFILE
Support engineer with hands-on experience in iGaming: end-to-end ticket handling, cross-department escalation,
and player-facing communication at scale. Detail-oriented and calm under pressure — a background in security
research and systems work means problems get traced to root cause, not just closed. Fully remote-native with clear
written communication in Ukrainian and English.

TECHNICAL SKILLS
– Customer support: ticket lifecycle management (triage, escalation, resolution), high-volume queue handling,
player account and payment issue resolution, internal knowledge base maintenance
– Cross-department communication: coordination with payments, technical, compliance and risk teams;
structured escalation workflows; async communication via task trackers and chat platforms
– Tooling: helpdesk and ticketing systems, Jira/Confluence-style project trackers, Slack, Telegram, Notion;
clear written documentation and runbooks
– Domain knowledge: iGaming / online betting product familiarity — player lifecycle, deposits and
withdrawals, account verification, bonus mechanics; crypto / Web3 — wallets, exchanges, DeFi
– Technical background: Python (automation, API integrations), Linux and Windows administration, security
mindset (anti-phishing, safe handling of user-facing communications), SQL basics

EXPERIENCE
Support Engineer — 1win
March 2025 – May 2026 · Remote
– Handled end-to-end ticket lifecycle: received, triaged and resolved player support requests across account,
payment and platform-related issues
– Coordinated with internal departments — payments, technical, compliance, risk — to escalate complex cases
and drive them to resolution
– Maintained clear written communication with users under high-volume conditions; documented recurring
issues and contributed to internal knowledge base
Independent Researcher / Security Research
2023 – present · Remote
– BeaverTail / Contagious Interview (DPRK): reverse-engineered this cross-platform
(Windows/macOS/Linux) infostealer end-to-end — client payloads and the C2 server side, including
communication and exfiltration flow; technical writeup accepted by Hack The Box
– Mobile banking app RE (Android, personal research): analyzed proprietary network protocols, traffic
encryption and client-side integrity / anti-tampering checks; reconstructed protocol logic to understand the
communication layer
– HackTheBox — multi-architecture RE: analyzed binaries across architectures (ARM, x86/x64 and others)
using static and dynamic analysis, covering unpacking and anti-debugging; authored an original RE challenge
accepted by the platform
– pairipCore teardown: public research into Google's Android anti-tamper protection — systematic analysis of
code-integrity logic, documented openly

LANGUAGES
Ukrainian — native · English — B2+ (working proficiency, daily written communication)

EDUCATION
Odesa National Maritime University — Bachelor's degree, specialty "Marine Electrical and Automation
Equipment Operation" · enrolled, from 2026