Summary
Help transform a mature web platform by migrating legacy frontend technologies to a modern React ecosystem while delivering new UI capabilities.
Highlights
Modernize a large web application, migrate legacy frontend architecture and build new user-facing features using modern development tools.
Description
With the aim of providing easily customizable online pre-employment assessment tests, eSkill Corporation has developed into a global leader in employment-related skills testing.
eSkill provides organizations with a web-based skill testing service.
Specifically, the eSkill application lets hiring and training managers configure tests from our extensive subject library to match their hiring and training needs and reduce the risk of hiring failures and discrimination litigation.
Our product currently operates on an outdated front-end stack built on the proprietary Liferay Portal framework (utilizing an AMD loader) and legacy tooling such as Gulp, Babel 6, and Webpack 4.
We are seeking a talented UI Engineer to help with the migration to a modern technology stack - including TypeScript, Vite, and Storybook - while also contributing to the development of new product features.
We have already built a modern design system based on shadcn, using PNPM, React, TypeScript, and Vite.
This system will help us create consistent, unified user experiences across multiple projects.
Requirements
Must-have experience:
4+ years of professional front-end development experience.
Outstanding UI skills, ability to build consistent interfaces with accessibility and performance in mind, Solid understanding of TypeScript/JavaScript, React, Webpack/Vite, eslint/prettier, pnpm.
Solid knowledge of web security, web performance and accessibility best practices.
Experience with TanStack (Table, Query), TailwindCSS.
Experience building and maintaining in-house libraries/workspaces (Design System).
Exposure to CI/CD pipelines and the general build process.
Nice-to-have
Lerna / NX / Turborepo experience.e.
Responsibilities
What you’ll do...
Own design system (Shadcn + Radix), plan, develop and collaborate with design team.
Improve and update user interface across multiple codebases.
Build new UI features in React + TypeScript with clean, maintainable code.
Pair with backend, Product, and Design to deliver end-to-end slices in each sprint.
Write unit and integration tests (React Testing Library, Playwright).
Benefits
Development fund of 3k PLN per year per headFlexibility in choosing the type of contractPaid holidayPrivate healthcare (Luxmed via Warta)Sports card (Multisport)Free English classesTeam building and socializing eventsCompetitive salaryUdemy access etc.
