React Developer (jr)

We're seeking a React Developer to build accessible UIs for our should-costing workflows. This role involves creating user interfaces, defining API contracts, and integrating with Node.js services.

Responsibilities:

• Implement product surfaces in React/Next.js + TypeScript using Tailwind and shadcn.
• Own UI to API contracts utilizing TypeScript types, Zod/JSON Schema, OpenAPI specs, and consumer-driven contract tests (Pact/MSW).
• Integrate with Node.js services (REST/GraphQL). Implement strategies for errors, retries, optimistic updates, and offline-tolerant states.
• Develop core should-costing flows.
• Instrument usage/events; monitor LCP/INP/CLS and domain metrics.
• Write tests and keep CI green.
• Iterate on existing workflows based on data and user feedback.

How you'll use GenAI:

• Scaffold components with Tailwind and generate Storybook stories.
• Create MSW mocks from schemas.
• Draft Zod/TypeScript types from OpenAPI; propose refactors.
• Summarize PR diffs, write changelog notes, and synthesize test data.
• Move fast for first drafts—then fix as we go: semantics, a11y, contracts, and docs.

Requirements:

• 3–6 years building React/TypeScript apps. Experience with Next.js and Tailwind/shadcn.
• Experience integrating with Node.js backends.
• Testing discipline (RTL/Jest/Vitest/Playwright) and CI hygiene.
• Curiosity about manufacturing or related data.
• Async communication and time management in a remote setup.

Nice to have:

• Exposure to Should‑Costing/Manufacturing workflows.
• Data‑viz (Recharts/Visx/D3), analytics/experimentation basics, and performance tuning.
• Familiar with Cursor/Copilot and code review best practices.

Numberz.ai is building generative platforms that empower experts in domains where judgment matters. We focus on helping analysts, advisors, and procurement professionals make better decisions, faster.

We specialize in areas like equity research, HNI wealth advisory, procurement operations, and life insurance. Our platforms move beyond generic AI, offering tailored solutions that reduce time, enhance quality, and structure decision-making.

Our Products:

• Tru: A writing and review platform for research teams.
• Optima: An intelligence layer for relationship managers.
• DIY: A reasoning agent for sourcing and insurance teams.

We emphasize understanding and design for real-world application. Our approach combines generative tools with structured knowledge, classical ML, and explainability. We aim to provide measurable improvements in efficiency and decision-making confidence. We began in finance and are expanding to roles where expertise is implicit but undocumented.

If your team makes critical decisions under pressure, let's explore how your domain and data can drive smarter thinking systems.

Learn more at Numberz.ai.