Senior Software Engineer, Frontend

This role suits a senior frontend engineer with deep React and TypeScript expertise who wants to architect and scale complex web applications that integrate data from multiple engineering tools. It’s ideal for someone experienced in building performant, component-driven interfaces at scale, comfortable with modern frameworks like Next.js, and eager to collaborate across product and backend teams while shaping engineering culture in a fast-moving environment. It will especially appeal to ambitious, entrepreneurial engineers who thrive in ambiguity and want to contribute to a platform powering advanced hardware and engineering organizations.

1. What frontend stack are you most comfortable with for building large-scale web apps?
   React with TypeScript and Next.js for the frontend, integrated with RESTful or GraphQL APIs, backed by Node.js/NestJS services.

2. How do you architect React applications to remain scalable as the product grows?
   I use a feature- or domain-based folder structure, isolate reusable UI primitives and hooks, separate server and client state, and standardize patterns through a shared component library and style guide.

3. What techniques do you use to optimize React performance for data-heavy UIs?
   I rely on memoization (React.memo, useMemo, useCallback), list virtualization, code splitting, avoiding unnecessary context re-renders, and profiling with React DevTools and browser performance tools.

4. How do you approach state management in complex frontends?
   I keep server state in tools like React Query or SWR, use a dedicated library (e.g., Redux/Zustand) for global client state, and prefer local component state where possible to avoid over-centralization.

5. How do you ensure consistency and reusability across the UI?
   I define and maintain a design system with shared tokens (colors, spacing, typography), build a component library, document usage patterns, and enforce it via code review and Storybook.

6. Describe your experience integrating React frontends with a NestJS/TypeORM/PostgreSQL backend.
   I collaborate on API contracts, consume REST endpoints with typed clients, handle errors and loading states in a unified way, and ensure data models stay in sync via shared types or OpenAPI/Swagger.

7. How do you handle ambiguous product requirements and a rapidly evolving roadmap?
   I clarify the core user problem, propose a simple, incremental solution, ship an MVP quickly, and iterate based on usage data and feedback while keeping the architecture flexible.

8. What is your approach to testing frontend code at scale?
   I combine unit tests (Jest) for logic, integration tests (React Testing Library) for components, and selective E2E tests (Cypress/Playwright) for critical flows, all enforced in CI.

9. How do you collaborate with backend and product teams on new features?
   I participate in early design/API discussions, align on constraints and timelines, create clear implementation plans, and keep everyone updated with async status and demos.

10. How do you contribute to engineering culture and process in a growing startup?
    I document patterns, lead or participate in design reviews, mentor peers, suggest tooling/process improvements, and push for a balance between velocity, code quality, and long-term maintainability.

Violet Labs is hiring a Senior Software Engineer, Frontend (US-remote) to architect and build a highly responsive React/Next.js web app that connects engineering tools and surfaces complex hardware data. You’ll work across React, TypeScript, Node.js, NestJS, and PostgreSQL to create scalable, component-based interfaces for teams building spacecraft, robots, vehicles, and other advanced hardware. This full-time role offers $130K–$200K plus strong equity, 100% paid health benefits, unlimited PTO, and learning stipends. Join a small, ambitious team with deep SpaceX/Waymo/Amazon experience and help define both the product and the engineering culture from the ground up.