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