Олександр

OLEKSANDR PROFILE
LYS
DevOps Engineer with over a year of combined experience across IT support and hands-on DevOps
DevOps Engineer engineering, delivering and maintaining PHP and C# applications, automating operational workflows,
and administering production databases and telephony systems. Comfortable owning issues end-to-
CONTACT end — from monitoring and log investigation to root-cause fixes — with a solid networking and
Active Directory foundation from an IT support background. Brings a security-conscious mindset
Lviv, Ukraine
from a Cybersecurity degree, plus hands-on experience integrating AI tooling (prompt engineering,
[open contact info](look above in the "contact info" section)
AI agents, MCP servers, self-hosted LLM infrastructure) into everyday engineering work.
[open contact info](look above in the "contact info" section)
EXPERIENCE
SKILLS

Languages & Dev PHP, C#, SQL DevOps Engineer Apr 2026 – Aug 2026
Databases PostgreSQL, MySQL Confidential

Infrastructure & Tools Docker, GitHub, ▸ Developed and maintained PHP web applications supporting internal and customer-facing
MobaXterm, OpenWRT, Asterisk products, covering the full cycle from implementation to post-release support.
Systems & Networking Windows Server ▸ Built supporting tools and services in C# to extend product functionality and streamline internal
administration, Active Directory & Group operations.
Policy, WSUS/patch management, ▸ Monitored production systems and investigated logs to identify, triage, and resolve issues,
workstation imaging & deployment,
helping reduce service downtime.
network troubleshooting, basic
switch/router support, backup ▸ Designed automation scripts and bots for internal products and OpenWRT-based network
monitoring devices, cutting down manual operational work.
Security Concepts XACML, Zero Trust ▸ Administered and queried PostgreSQL and MySQL databases supporting application logic and
Architecture, OPA/Rego, access control reporting.
AI & LLM Tooling Prompt engineering, ▸ Configured, maintained, and troubleshot Asterisk telephony systems supporting business
AI agents, MCP servers, Claude, Gemini, communications.
ChatGPT, Antigravity IDE, self-hosted
Open WebUI server ▸ Provided ongoing technical support for deployed products, working closely with teammates to
resolve customer-impacting issues.
LANGUAGES ▸ Used Git for version control and collaborated with colleagues on code changes and fixes.
Ukrainian — Native
▸ Applied AI tooling (prompt engineering, AI agents, MCP servers) to speed up troubleshooting,
scripting, and documentation tasks.
English — Working proficiency
Helpdesk Support Specialist Sep 2025 – Apr 2026
EDUCATION Confidential
Bachelor's, Cybersecurity ▸ Monitored internal and external network outages and coordinated timely resolution with the
Lviv Polytechnic National University wider IT team.
2022 – 2026 ▸ Administered Active Directory, including creation and management of user accounts and access.
▸ Diagnosed and resolved hardware, software, and connectivity issues for end users, minimizing
downtime.
▸ Logged, tracked, and prioritized support tickets, ensuring timely resolution and clear
communication with end users.
▸ Escalated complex infrastructure and network issues to senior IT staff when needed.
▸ Built foundational knowledge of network fundamentals, IT infrastructure, and endpoint
troubleshooting that carried into later roles.

System Administrator Sep 2024 – May 2025
Confidential
▸ Administered Windows Server infrastructure and Active Directory (user accounts, groups,
permissions, Group Policy) in a mid-to-large corporate environment.
▸ Deployed, configured, and maintained employee workstations, including OS imaging and
software installation.
▸ Managed Windows updates and patch management across servers and endpoints to maintain
security compliance.
▸ Assisted with server maintenance, backup monitoring, and network equipment support alongside
the infrastructure team.
▸ Maintained antivirus/endpoint protection and monitored for security-related incidents.

▸ Provided second-line IT support, resolving escalated hardware, software, and connectivity issues.
▸ Managed user access rights and permissions in line with internal security policies.
▸ Supported onboarding/offboarding processes, including account provisioning and equipment
setup.
▸ Maintained internal documentation for systems, configurations, and recurring procedures.

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.

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.