Serhii Chaika

Professional Summary

IT Specialist with 25 years of commercial experience and 30 years of hands-on hardware practice: PC assembly, BIOS configuration, OS installation (Windows / Linux), hardware troubleshooting, network configuration, and server maintenance. Experienced with Docker, VMware, and CI/CD infrastructure. Parallel expertise as a Senior Software Engineer - 14+ years in Angular, TypeScript, NestJS, and PostgreSQL - covering the full stack from bare metal to production application. Works effectively both independently and within international engineering teams.

Technical Skills

• Systems & Infrastructure

  Windows, Linux, Docker, VMware, CI/CD pipelines, server maintenance, system administration, network configuration, DevOps, infrastructure maintenance, Git

• Hardware & IT Support

  PC assembly, hardware troubleshooting, component testing, software installation, OS installation and configuration, peripheral setup, hardware cleaning and maintenance

• Frontend

  Angular, TypeScript, JavaScript, HTML5, CSS3, SASS, LESS, DevExpress, Bootstrap

• Backend

  NestJS, REST APIs, Prisma, PostgreSQL

• Architecture & Engineering

  OOP, design patterns, component-based architecture

Professional Experience

• Full-Stack Developer

  Coding own projects • Switzerland Aug 2025 - present

  JavaScript • React • Java • Forge • ClaudeCode

  • Developed Jira plugins (Forge-based and Server/DC-based)
  • Testing and evaluation of Claude plugins and skills

• Lead Full-Stack Developer

  SSTS • Ukraine Jan 2023 - Jul 2025

  Angular • TypeScript • DevExpress • NestJS • PostgreSQL

  • Maintained deployment environments and server infrastructure (Linux / Windows)
  • Led development of a brigade-level analytics platform for operational data collection
  • Designed and implemented core parts of the application architecture
  • Owned architecture of a large Angular application with 80+ functional modules
  • Developed backend APIs using NestJS and PostgreSQL
  • Built analytics dashboards and data processing interfaces

• Senior Frontend Engineer • Angular Developer

  Miratech • Kyiv, Ukraine Mar 2019 - Feb 2022

  Angular • TypeScript • DevExpress

  • Managed CI/CD pipelines and deployment automation
  • Developed frontend for a government tax service platform
  • Implemented enterprise UI using Angular and DevExpress
  • Built complex data entry forms and administrative interfaces
  • Worked in Scrum teams with distributed international engineers

• Frontend Engineer • Angular Developer

  Amadeus Ukraine • Kyiv, Ukraine Feb 2017 - Mar 2019

  Angular • TypeScript

  • Developed web platform for travel agent reward programs
  • Implemented agent portal (25+ pages) and administration interface
  • Built Angular frontend features and UI components
  • Worked in Scrum teams

• Frontend Engineer

  Flyupstudio • Chernihiv, Ukraine Mar 2012 - Jan 2017

  HTML • CSS • JavaScript • jQuery

  • Delivered 150+ commercial websites and web applications across multiple industries
  • Designed and implemented frontend architecture and responsive layouts
  • Worked with HTML, CSS, JavaScript and CMS platforms

• Web & Print Designer

  CBIT | Freelance • Kyiv, Ukraine 2003 - 2012

  HTML • CSS • JavaScript

  
  • Web design, banners and frontend markup for client websites
  • Print design and digital graphics

Education

• Chernihiv National Technological University
  Computer Systems and Networks • 1998 - 2002
• National Technical University of Ukraine (KPI)
  Applied Computer Science • 1997 - 1998

Languages

• English - Professional working proficiency (B2/C1)
• German - A2/B1 (currently learning)
• Ukrainian - Native
• Russian - Native