Костянтин

Kostiantyn Yagusevych
(Remote/Hybrid)

📞 [відкрити контакти](див. вище в блоці «контактна інформація») | 📧 [відкрити контакти](див. вище в блоці «контактна інформація»)
🔗 LinkedIn | 💻 GitHub | 🌐 Portfolio/Website
SUMMARY

Versatile Systems & Security Engineer with a robust background in building, securing, and
scaling distributed systems. Expert in bridging the gap between development and operations
through DevSecOps practices, automated CI/CD pipelines, and proactive threat modeling.
Proven track record in Python/Go backend development, infrastructure-as-code
(Terraform/Ansible), and penetration testing. Committed to high-availability architecture and
"security-by-design" principles.

TECHNICAL SKILLS

●​ DevOps & Cloud: Docker, Kubernetes, Terraform, Ansible, Jenkins, GitHub Actions,
GitLab CI, Cloud-init, Nginx, Load Balancing, Infrastructure as Code (IaC).
●​ Cybersecurity: Pentesting (Web, Network, OSINT), Threat Detection, Honeypots,
Vulnerability Scanning (Nmap, Nessus), SSH Lifecycle, RBAC, Cryptography
(TLS/SSL, Hashing), Risk Assessment.
●​ Backend Development: Go (High-performance microservices), Python (FastAPI,
Django, Scrapy), C++ (Compute-intensive tasks), RESTful APIs.
●​ Observability & Monitoring: Prometheus, Grafana, Loki, Alertmanager, ELK/Log
analysis.
●​ Systems & Networking: Linux (Arch, Debian, Ubuntu), Windows Server (AD, GPO),
TCP/IP, VPN/VLAN, Bash/PowerShell Scripting, Assembly (x86/x64) basics.

PROFESSIONAL EXPERIENCE

Nicely.Group Inc | Software Developer | Oct 2025 – Nov 2025

●​ Optimized platform reliability by implementing advanced logging and monitoring
solutions.
●​ Streamlined API performance and refactored core components to improve CI/CD
efficiency.

Kindgeek | Software Developer | Apr 2025 – Sep 2025

●​ Architected backend solutions with a focus on high-load performance and scalability.
●​ Developed interactive monitoring dashboards and mentored junior developers on
best practices.
●​ Integrated security checkpoints into the CI/CD pipeline to ensure code integrity.

EPEAK | Software Engineer | Aug 2024 – Mar 2025
 ●​ Designed and maintained scalable microservices using Go and Python.
●​ Orchestrated containerized environments using Docker and Kubernetes.
●​ Implemented automated security audits and infrastructure optimization protocols.

Young Coder School | IT Instructor | Nov 2023 – Jun 2024

●​ Developed curricula and taught Python, C++, and Web technologies to 100+
students.
●​ Mentored students through the full SDLC, emphasizing clean code and version
control.

PwC Slovakia | Software Developer | Feb 2023 – Oct 2023

●​ Developed enterprise-level automation tools using Python and Bash for multinational
teams.
●​ Standardized CI/CD integration processes, reducing deployment errors in production
environments.

Teamvoy | Back-end Developer | Dec 2021 – Feb 2023

●​ Delivered high-quality REST APIs and integrated frontend components using React.
●​ Participated in Agile/Scrum cycles, consistently meeting sprint goals for feature
delivery.

STARTUPS & PROJECTS

HMH.EXPERT | Technical Consultant

●​ Provided technical arbitration, bug investigation, and system architecture consulting
for a freelance marketplace.

EDUCATION & CERTIFICATIONS

●​ B.S. in Cybersecurity | Lviv Polytechnic National University | 2023 – 2027
(Expected)
●​ Cybersecurity & DevOps | SoftServe IT Academy | 2025
●​ Software Development & Web Tech | IT Step Academy | 2016 – 2021
●​ Certifications: White Hacker (Ethical Hacking), Linux (KillerCode), OSINT
(CyberYozh).

LANGUAGES

●​ English: B2 (Upper-Intermediate)
●​ Ukrainian: Native
●​ German: A2 | Polish: A2