Kostiantyn

Front-end програміст, 150 000 UAH

Considering positions:
Front-end програміст, Angular-розробник
City of residence:
Kyiv
Ready to work:
Remote

Contact information

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Work experience

Senior Frontend Developer

from 01.2023 to 06.2026 (3 years 6 months)
Suntech Innovation, Київ (IT)

Senior Front-end Developer (Angular)

- Leading development of a key product feature within a betting platform, taking ownership from technical design to delivery
- Driving architectural decisions and ensuring scalability and maintainability of the solution
- Consolidated separate desktop and mobile applications into a single responsive application, simplifying codebase and improving maintainability
- Improved overall platform performance through targeted optimizations and refactoring efforts
- Introduced Storybook to standardize UI development and improve collaboration between developers and designers
- Increased unit test coverage, contributing to better code reliability and easier future changes
- Actively participating in code reviews and contributing to overall code quality and team knowledge sharing

Senior Frontend Developer

from 03.2022 to 10.2022 (8 months)
Star, Київ (IT)

Senior Front-end Developer (Angular)

- Contributed to development of multiple dashboard-oriented applications across different teams
- Built and maintained data-driven user interfaces, focusing on usability and performance
- Participated in full-cycle development, including feature implementation, bug fixing, and ongoing application support
- Collaborated with cross-functional teams to deliver consistent and reliable product functionality
- Involved in early-stage development of a project from scratch, contributing to technical discussions, architecture decisions, and technology selection
- Ensured code quality through code reviews and adherence to established development practices

Senior Frontend Developer Lead

from 10.2019 to 12.2021 (2 years 3 months)
WalkMe, Київ (IT)

Senior Front-end Developer (Angular)

- Contributed to the development and evolution of a drag-and-drop WYSIWYG editor for end-user content creation, supporting both simple HTML-like elements and more complex components
- Took ownership of technical planning, defining implementation approaches and driving solution design for new features
- Participated in roadmap planning and sprint organization, aligning development efforts with product priorities
- Modernized and optimized a legacy codebase inherited by the team, improving performance, maintainability, and overall developer experience
- Improved editor performance and responsiveness, addressing bottlenecks in a complex interactive UI
- Established foundations for future integration of the editor into other systems within the platform
- Maintained and extended client-side state management for editor functionality
- Mentored team members through regular 1:1s and provided ongoing technical guidance
- Contributed to a small cross-functional team (3 developers + QA), supporting delivery and maintaining engineering standards

Tech stack: Angular, AngularJS, NgRx, PrimeNG

Senior Frontend Developer

from 03.2016 to 09.2019 (3 years 7 months)
Thomas Cook, Київ (IT)

Developing solutions that allow customers to purchase additional features for their holidays

Responcibilities:
* feature development
* mentoring of other team members (not only in current team)
* planning the sprints, roadmap
* technical planning (deciding on how to develop the upcoming features)

Libs and frameworks used:
* Angular/AngularJS
* Material
* ngrx

Demandware Developer

from 05.2011 to 07.2015 (4 years 3 months)
Astound Commerce, Київ (IT)

Developing e-commerce solutions with Demandware

Demandware Principal Engineer
- Back-end development on Demandware platform
- Building architecture of internal product, a framework based on Demandware platform
- Lead developer on first project that used this product
- Consulting teams that develop solutions using this product
- Lead developer on several other projects
- Solution engineering
- Project and technical documentation

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Demandware Developer (senior), Team Lead
- Back-end development on Demandware platform
- Front-end development (Javascript, jQuery)
- Leading and coordination activities of a project's team
- Project and technical documentation of solutions developed
- On-boarding program developing (in cooperation with other senior)
- Technical interviewing
- Newcomers coaching

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Demandware Developer (middle)
- Back-end development on Demandware platform
- Front-end development (Javascript, jQuery)

Knowledge and skills

  • HTML
  • CSS
  • JavaScript
  • Git
  • TypeScript
  • SASS
  • Node.js
  • Angular
  • AngularJS
  • CSS Grid Layout
  • CSS Flexbox
  • Tailwind CSS

Language proficiencies

  • Ukrainian — advanced
  • English — above average

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