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Senior Full-Stack Software Engineer (JavaScript)

Cambridge, Massachusetts; New York, New York💼 Full-time💰 $150,000–$225,000🗓 2026-04-09 → 2026-09-23

Core

Build AI-centric web applications and SPAs in TypeScript, translating novel ML capabilities into intuitive end-user experiences for S&P Global and its customers.

Role type

Senior Full-Stack Software Engineer (JavaScript/TypeScript)

Builds

Web applications and APIs delivering AI capabilities (generative AI, agents, data retrieval)

Domain

Financial services / Generative AI

Deliverable

product features

Required skills

TypeScript, React, Next.js, web UI development, architecture decision-making, product sense, technical mentorship

Preferred skills

Deep expertise in web performance or design systems

Technologies

TypeScript, React, Next.js, Tailwind, LangGraph, AI SDK, Drizzle, Git, GitHub, Amazon EKS, AWS, Sentry, Langfuse, Prometheus

Responsibilities

Build full-stack and SPA TypeScript applications from experiments to flagship products; Collaborate on product decisions and communicate technical constraints; Own and collaborate on technology/architecture decisions; Mentor team members via code review and knowledge sharing; Manage project priorities, estimates, and deliverables

Seniority

Senior, hands-on IC with mentorship responsibilities

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