Frontend разработчик

Enfint; Warszawa; On-site; PLN 210,000 - 320,000; Full time

Job summary

42dot ищет опытного фронтенд‑разработчика в глобальном центре Hyundai Motor Group. Ваша задача — проектировать и развивать REST/SSE API поверхность в связке с frontend на React/TypeScript и интеграцией 3D‑контента.

Вы будете работать в международной команде с упором на качество контракт‑тестов и документацию для партнеров.

Qualifications

• Требуется степень бакалавра в области компьютерных наук или сопутствующей дисциплины/эквивалентный опыт.
• 5+ лет продакшн-опыта с React и TypeScript, включая end‑to‑end type safety.
• Опыт проектирования и эволюции спецификаций OpenAPI 3.x и связанных инструментов.
• Сильные навыки схематического подхода: Zod, JSON Schema, валидация на границах.
• Хорошее понимание REST и протоколов потоковой передачи, включая Server-Sent Events и WebSocket.

Responsibilities

• Разработка и документирование API REST/Server‑Sent Events поверхности платформы.
• Разработка frontend на React и TypeScript, включая панели состояний транспорта и порталы партнеров.
• Интеграция 3D-ресурсов (glTF) через three.js / react‑three‑fiber в сотрудничестве с дизайнерами.
• Создание и поддержка разработческой документации и примеров для партнеров.
• Обеспечение устойчивости потоковых UI‑компонентов: реконнект, обратное давление, мультиплексирование событий.
• Участие в технических обсуждениях с внешними интеграторами, ревью API.

Skills

React

TypeScript

OpenAPI 3.x

JSON Schema

REST API

WebSocket

three.js

react-three-fiber

English

Education

Bachelor's degree in Computer Science

Tools

Playwright

Cypress

Job description

Описание

42dot is a mobility AI company that serves as the Global Software Center of Hyundai Motor Group. The organization focuses on advancing software‑defined vehicle technologies and developing a self‑managing urban transportation operating system to enable autonomous connectivity.

Задачи

• Design, document, and evolve the public REST and Server‑Sent Events API surface of the virtual vehicle platform, including OpenAPI specifications and generated partner clients.
• Implement and maintain the production frontend in React and TypeScript, including real‑time vehicle state dashboards, vehicle variant management, partner‑facing portals, and configuration tooling.
• Integrate 3D vehicle assets (glTF) into the frontend using three.js or react‑three‑fiber in collaboration with product designers.
• Build the developer experience around the schema, including typed clients, runtime validation, mocks, contract tests, and generated documentation.
• Own the resilience of streaming UI components, such as reconnection, backpressure, and multiplexed event handling.
• Participate in technical conversations with external integration partners, including API design reviews and the creation of partner‑facing written guides.

Требования

• Bachelor's degree in Computer Science or a related field, or equivalent practical experience.
• 5+ years of production experience with React and TypeScript, including end‑to‑end type safety.
• Hands‑on experience designing and evolving OpenAPI 3.x specifications and related tooling.
• Strong schema‑first instincts, including Zod, JSON Schema, and runtime validation at boundaries.
• Solid working understanding of REST and streaming protocols like Server‑Sent Events and WebSocket.
• Practical experience integrating 3D content in the browser with three.js or react‑three‑fiber.
• Strong code review culture and ability to collaborate with backend and design counterparts.
• Fluent English.
• Nice to have: Frontend integration testing with Playwright or Cypress, experience writing technical content for developers, experience with multi‑site and multi‑national teams, knowledge of automotive products.