Олександр

OLEKSANDR LYS
Junior DevOps Engineer
Lviv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

PROFILE
DevOps Engineer with hands-on commercial experience supporting PHP and C# web applications, automating operational tasks,
and maintaining Linux/network infrastructure. Background in IT support (Active Directory, network troubleshooting) transitioned
into DevOps, combining scripting, monitoring, and database administration. Bachelor's degree in Cybersecurity with a focus on
access control and information security. Comfortable working across the stack from infrastructure to application code.

WORK EXPERIENCE

DevOps Engineer — Confidential Apr 2026 – Present
• Develop and maintain PHP web applications supporting internal and customer-facing products.
• Develop supporting tools and utilities in C#.
• Monitor production systems and investigate logs to identify and resolve issues.
• Write automation scripts and bots for internal products and for OpenWRT-based devices.
• Administer and query PostgreSQL and MySQL databases.
• Configure and maintain Asterisk telephony systems.
• Provide ongoing technical support for deployed products.
Helpdesk Support Specialist — Confidential Sep 2025 – Apr 2026
• Monitored internal and external network outages and coordinated timely resolution.
• Administered Active Directory, including creation and management of user accounts.
• Diagnosed and resolved hardware, software, and connectivity issues for end users.

PROJECTS
• Time Tracker — application for tracking employee/task working hours.
• AD Helpdesk — internal tool integrating helpdesk workflows with Active Directory account management.
• Ticket System — internal ticketing system for tracking and resolving support requests.

EDUCATION
Bachelor's Degree in Cybersecurity
Lviv Polytechnic National University — Specialty 125 "Cybersecurity and Information Protection"
2022 – 2026
Thesis: "Attribute-Based Access Control for the Hadoop Big Data Platform" — XACML 3.0, Zero Trust Architecture, Apache Hadoop
(HDFS, Hive, Kafka, Spark), OPA/Rego, Docker, Redis, FastAPI, PostgreSQL; referenced NIST SP 800-162/800-207, ISO/IEC
27001:2022, GDPR, PCI DSS.

TECHNICAL SKILLS
Languages & Development: PHP, C#, SQL
Databases: PostgreSQL, MySQL
Infrastructure & Tools: Docker, GitHub, MobaXterm, OpenWRT, Asterisk
Systems & Networking: Active Directory, Windows/Linux administration, network troubleshooting
Security concepts: XACML, Zero Trust Architecture, OPA/Rego, access control (from academic background)
AI & LLM Tooling: Prompt engineering, AI agents, MCP servers, Claude, Gemini, ChatGPT, Antigravity IDE; self-hosted an
AI server on Open WebUI
Languages: Ukrainian (native), English (working proficiency)