Senior Frontend Engineer API/Interface Design

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 1 hour agoStatus: Live

Job Summary

Build the user-facing layer of a software-defined vehicle (SDV) virtual development platform. You’ll design and evolve public REST and Server-Sent Events APIs (including OpenAPI specs and generated partner clients), implement a production React + TypeScript frontend with real-time dashboards and partner portals, and integrate 3D glTF views via three.js. Own schema-driven developer experience, resilience for streaming UI, and collaborate with backend, product design, and external integration partners.

Location: Warsaw

Workplace: Hybrid

Employment Type: Full time

Job Function: Software Engineering

Seniority: Mid level

Key Responsibilities

•Design, document, and evolve the public REST and Server-Sent Events API surface, including OpenAPI specs and generated partner clients.
•Implement and maintain production frontend features in React and TypeScript (dashboards, variant management, partner portals, configuration and scenario tooling).
•Integrate 3D vehicle assets (glTF) into the frontend using three.js or react-three-fiber.
•Build developer experience around the schema with typed clients, runtime validation, mocks, contract tests, and generated documentation.
•Own streaming UI resilience (reconnection, backpressure, multiplexed event handling) and participate in API design reviews with integration partners.

Key Requirements

•Bachelor’s degree in Computer Science or 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 plus validators, mocks, and client generators.
•Strong schema-first instincts using Zod and/or JSON Schema with runtime validation at boundaries.
•Solid understanding of REST and streaming protocols (Server-Sent Events, WebSocket).

Experience:5+ yearsAutomotiveSoftware-defined vehiclesAPI integration

Education:Bachelor's in Computer Science

Skills:Code reviewCollaborationCommunicationEnglish fluency

Languages:English

Tech Stack:ReactTypeScriptRESTServer-Sent EventsWebSocketOpenAPI 3.xOpenAPIZodJSON SchemaThree.jsReact-three-fiberGlTFOpenAPI specificationsPlaywrightCypress

Company Brief

42dot

Website

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42dot

3 weeks ago

Senior Frontend Engineer API/Interface Design

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 1 hour agoStatus: Live

Job Summary

Location: Warsaw

Workplace: Hybrid

Employment Type: Full time

Job Function: Software Engineering

Seniority: Mid level

Key Responsibilities

•Design, document, and evolve the public REST and Server-Sent Events API surface, including OpenAPI specs and generated partner clients.
•Implement and maintain production frontend features in React and TypeScript (dashboards, variant management, partner portals, configuration and scenario tooling).
•Integrate 3D vehicle assets (glTF) into the frontend using three.js or react-three-fiber.
•Build developer experience around the schema with typed clients, runtime validation, mocks, contract tests, and generated documentation.
•Own streaming UI resilience (reconnection, backpressure, multiplexed event handling) and participate in API design reviews with integration partners.

Key Requirements

•Bachelor’s degree in Computer Science or 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 plus validators, mocks, and client generators.
•Strong schema-first instincts using Zod and/or JSON Schema with runtime validation at boundaries.
•Solid understanding of REST and streaming protocols (Server-Sent Events, WebSocket).

Experience:5+ yearsAutomotiveSoftware-defined vehiclesAPI integration

Education:Bachelor's in Computer Science

Skills:Code reviewCollaborationCommunicationEnglish fluency

Languages:English

Tech Stack:ReactTypeScriptRESTServer-Sent EventsWebSocketOpenAPI 3.xOpenAPIZodJSON SchemaThree.jsReact-three-fiberGlTFOpenAPI specificationsPlaywrightCypress

Company Brief

42dot

Website