Назарій

Nazarii Nikitchyn
Full-Stack Software Engineer — Cybersecurity Specialist
[відкрити контакти](див. вище в блоці «контактна інформація») — [відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація»)
Katowice, Poland

Professional Summary
Full-stack Software Engineer with 3+ years of experience in building scalable, event-driven systems using Angular,
Node.js, and Apache Kafka. Proven track record of delivering secure, high-performance applications in distributed
environments. Specialized in system integration, security automation, and open-source tooling. Strong background
in cybersecurity with hands-on experience in SIEM, incident response, and infrastructure hardening.

Technical Skills
• Frontend: Angular, HTML5, CSS, TypeScript
• Backend: Node.js, Python, C#, PostgreSQL, MongoDB, Redis
• Messaging: Apache Kafka, REST APIs, Webhooks
• Integration: ETL, Elasticsearch, OAuth2, Open Source SDKs
• Security: SIEM (IBM QRadar), Wireshark, ISO 27001, Nessus Tenable
• DevOps: Docker, Git, Linux, GitLab CI/CD
• Open Source: Code customization, library contributions, SDK integration

Professional Experience
Software Engineer, IT Specialist LLC Sep 2023 – Present
• Developed a Kafka-based messaging system, reducing inter-service latency by 50%.
• Built an event-driven integration layer that processed messages in under 100ms.
• Designed and implemented cybersecurity features that cut MTTD by 30%.
• Deployed secure Kafka connectors to SOC pipelines, doubling alert capacity.
• Created 15+ reusable Angular components, cutting UI delivery time by 40%.
• Improved UI accessibility to meet WCAG 2.1 standards, increasing adoption threefold.
• Participated in architecture reviews and sprint planning to ensure timely deliveries.
• Shipped full-stack applications with sub-second load times, increasing retention by 25%.
• Integrated 5+ open-source tools using REST and OAuth2, reducing setup time from weeks to days.
• Refactored SOC automation scripts in Python, decreasing triage time by 20%.
• Leveraged Elasticsearch for log discovery and analysis to enhance monitoring and troubleshooting.
• Utilized MongoDB and Redis as part of a distributed engine platform supporting high availability and scalability.

Outsourced Engineer, ZAGROZA Digital Agency Mar 2025 – Jun 2025
• Automated deployment workflows via Jenkins, improving delivery speed by 80%.
• Built and maintained a Node.js + PostgreSQL backend handling 100+ concurrent tasks.
• Extended Directus CMS with 10+ modules to accelerate feature delivery.
• Conducted user interviews to gather requirements and refine technical specifications.
• Maintained consistent sprint velocity through close collaboration with PM and design teams.
• Streamlined API integration, reducing frontend-backend issues by 60%.

Cybersecurity Specialist, TASCOMBANK JSC Mar 2022 – Aug 2023
• Investigated 100+ monthly security incidents using IBM QRadar and Wireshark.
• Built custom SIEM alerting rules and EDR playbooks, reducing false positives by 30%.
• Authored IR procedures that decreased system downtime during high-severity events by 40%.

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Cybersecurity Intern, TASCOMBANK JSC Dec 2021 – Mar 2022
• Supported firewall, vulnerability scanner, and endpoint monitoring deployments.
• Assisted with rollout of security controls across banking infrastructure.
• Verified compliance with ISO 27001 and internal policies during audits.

Education
University of Copenhagen 2024 – 2025
Internship – Computer Science
Focused on applied mathematics, statistics, and decentralized systems.
Taras Shevchenko National University of Kyiv 2021 – 2024
Bachelor of Mathematics
Concentration in decentralized systems, cybersecurity, and machine learning.

Languages
• English – Professional proficiency
• Ukrainian – Native
• Russian – Native/Bilingual proficiency

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