Vasyl

Vasyl Yaremii

📍 Ukraine / Remote
📧 [open contact info](look above in the "contact info" section)
📱 [open contact info](look above in the "contact info" section)
🔗 GitHub: https://github.com/mochthebest-byte

SUMMARY

DevOps-oriented engineer with a strong background in monitoring, observability, infrastructure
automation, and security fundamentals.
Hands-on experience gained through self-hosted lab environments using Docker, Terraform concepts,
CI/CD fundamentals, and monitoring stacks (Grafana, Prometheus, Loki, Zabbix), as well as log analysis
with Elasticsearch and Kibana.
Strong understanding of Linux systems, networking basics, and security monitoring, with focus on
reliability, visibility, and detection of suspicious activity.

TECHNICAL SKILLS

DevOps & Infrastructure

Docker, containerized applications

Terraform (Infrastructure as Code – fundamentals)

CI/CD concepts (GitHub Actions – basics)

AWS (basic cloud concepts, IAM awareness)

Linux (processes, logs, permissions, networking basics)

Monitoring & Observability

Grafana (dashboards, visualization)

Prometheus (metrics collection, basic PromQL)

Loki (log aggregation)

Zabbix (host and service monitoring)

Elasticsearch & Kibana (log ingestion and analysis)

Security & Networking

Linux authentication and system log analysis

Basic understanding of TCP/IP and OSI model

Network traffic analysis with Wireshark

Nmap (service discovery and scanning in authorized lab environments)

Basic knowledge of metrics, alerts, and anomaly detection

Programming & Data

Python (automation and scripting basics)

SQL (basic queries)

Bash (basic scripting)

HANDS-ON LAB EXPERIENCE (Self-Hosted Environments)

SSH Brute Force & Suspicious Login Detection

Environment: Self-hosted Linux lab
Stack: Linux, Filebeat, Elasticsearch, Kibana, ES|QL, Grafana

Collected and analyzed Linux authentication logs (/var/log/auth.log) from a self-hosted Linux
system.

Built ES|QL queries to detect:

o Multiple failed SSH login attempts from a single source

o Successful SSH logins following brute-force activity

Visualized suspicious login behavior using Kibana and Grafana dashboards.

Practiced investigation workflow, alert logic, and identification of potential false positives.

Infrastructure Monitoring & Observability Lab

Environment: Self-hosted infrastructure lab
Stack: Grafana, Prometheus, Loki, Zabbix, Linux

Deployed and configured a full monitoring stack in a self-hosted lab environment.

Implemented metrics collection and dashboards for CPU, memory, disk usage, uptime, and basic
service health.

Practiced log aggregation with Loki and correlation of logs with metrics.

Gained hands-on experience with alerting concepts and threshold-based monitoring.

EDUCATION

Master’s Degree — Information Security
Lviv Polytechnic National University

Bachelor’s Degree — Information Security
Lviv Polytechnic National University

Specialization: Information Protection / Cybersecurity

KEY STRENGTHS

Strong Linux and infrastructure mindset

Practical experience with self-hosted monitoring and observability stacks

Ability to analyze logs and metrics to identify abnormal behavior

Security-aware approach to infrastructure and operations

Self-driven, lab-based learning with real-world tools

CAREER INTERESTS

DevOps Engineer

Junior / Middle DevSecOps Engineer

SOC / Detection-oriented roles

Infrastructure or Platform Engineering