Serhii Chaika

Professional Summary

IT Specialist with 14 years of commercial web development, 25 years overall IT commercial experience, 30 years of hands-on hardware practice. Expertise as a Senior Software Engineer - Angular, TypeScript or JavaScript, NestJS, PostgreSQL. Able to PC assembly, BIOS configuration, OS installation (Windows / Linux), hardware troubleshooting, network configuration, and server maintenance. Experienced with Git, Docker, VMware, and CI/CD infrastructure. 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

Professional Experience

• Full-Stack Developer

  Coding own projects - Switzerland, Aug 2025 - present

  JavaScript • Forge • ClaudeCode (React + Java)

  
  
  • Developed Jira plugins (Forge-based and Server/DC-based) and webapps for self usage
  • 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 • Twig • PHP

  
  
  • 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 • PHP

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

Education

• Chernihiv National Technological University
  "Computer Systems and Networks: Specialized Computer Systems" - Chernihiv, Ukraine, 1998 - 2002
• National Technical University of Ukraine (KPI)
  "Applied Informatics of Physical Processes, Fields, and Systems" - Kyiv, Ukraine, 1997 - 1998

Languages

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