SDK Engineer — AI-Driven Web Platform (Hybrid NYC)

Eulerity, Inc.; New York, Northern (NY, KY); Hybrid; USD 100,000 - 125,000; Full time

Benefits offered by this job

Medical insurance

Vision plan

401(k) with company match

Hybrid work Model

Job summary

Eulerity, Inc. in New York, NY seeks an Associate Web Development Software Engineer (SDK) to design, build, and ship developer-facing SDKs and public APIs.

You will own the SDK as a product, manage TypeScript types, versioning, packaging, and documentation, and collaborate across web, mobile, and backend teams. You’ll create AI-powered automation workflows, test new features, integrate with APIs and data models, and participate in the PR lifecycle.

Qualifications

• Proven experience designing and shipping a developer-facing SDK, library, or public API consumed by other engineers.
• Strong separation-of-concerns judgment to design framework-agnostic core logic decoupled from bindings.
• Experience packaging and distributing libraries: bundling, ESM/CJS, tree-shaking, and npm publishing.
• 2–3 years of professional experience with React & TypeScript, including building reusable components and strong typing as public contract.
• Well-versed in building custom AI automation workflows and LLM integrations.

Responsibilities

• Design, build, and ship developer-facing SDKs consumed by other engineers.
• Own the SDK as a product: public API, TypeScript types, versioning, packaging, and documentation.
• Build and maintain AI-powered automation workflows that connect our product to internal and external systems.
• Develop features, test, integrate with APIs and data models, and own the PR lifecycle.

Skills

SDK/library builder

AI-first engineer

Self-starter

Code reviews

Technical documentation

Tools

React

TypeScript

Bundlers (tsup/Rollup/Vite)

npm publishing

Monorepo tooling

Job description

Eulerity, Inc. in New York, NY seeks an Associate Web Development Software Engineer (SDK) to design, build, and ship developer-facing SDKs and public APIs.

You will own the SDK as a product, manage TypeScript types, versioning, packaging, and documentation, and collaborate across web, mobile, and backend teams. You’ll create AI-powered automation workflows, test new features, integrate with APIs and data models, and participate in the PR lifecycle.