Associate Web SDK Engineer – TypeScript & AI Automation

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

Benefits offered by this job

In-office lunch stipend

Unlimited snacks

401(k) with company match

Hybrid model (3x in office per week)

Job summary

Eulerity, Inc. in New York, NY is seeking an Associate Web Development Software Engineer (SDK) to design and ship developer-facing SDKs and maintain the product surface, APIs, and documentation.

You will build AI-powered automation workflows and collaborate with web, mobile, and backend teams to align on architecture and product direction. The role requires 2–3 years of React & TypeScript experience, a strong focus on clean APIs, and the ability to work in a hybrid NYC office environment.

Qualifications

• Proven experience designing and shipping a developer-facing SDK, library, or public API.
• Strong separation-of-concerns judgment for framework-agnostic core logic.
• Experience packaging and distributing libraries: bundling, ESM/CJS, tree-shaking, and npm publishing.
• 2–3 years of professional experience with React & TypeScript.
• Well-versed in building custom AI automation workflows (LLM integrations, agentic tooling).
• Familiarity with PRs, code review, and agile workflows.
• Strong written communication and technical documentation.
• Based in the NYC metro area and able to work hybrid from our NYC office.
• Authorized to work in the US.

Responsibilities

• Designing, building, and shipping developer-facing SDKs consumed by other engineers.
• Owning the SDK as a product: public API surface, TypeScript types, semantic versioning, packaging/distribution, backwards compatibility, and documentation.
• Building and maintaining AI-powered automation workflows that connect our product to internal and external systems.
• Developing and testing new features using AI-assisted tooling and autonomous agents, maintaining the codebase, integrating with APIs and data models, and owning the PR lifecycle.
• Collaborating across web, mobile, and backend teams to align on best practices and shared architecture.
• Partnering with Product and Design to translate designs into shipped solutions for users and engineers.

Skills

SDK/library builder

AI-first engineer

React & TypeScript experience

Technical documentation

Communication skills

Tools

tsup

Rollup

Vite

npm publishing

Job description

Eulerity, Inc. in New York, NY is seeking an Associate Web Development Software Engineer (SDK) to design and ship developer-facing SDKs and maintain the product surface, APIs, and documentation.

You will build AI-powered automation workflows and collaborate with web, mobile, and backend teams to align on architecture and product direction. The role requires 2–3 years of React & TypeScript experience, a strong focus on clean APIs, and the ability to work in a hybrid NYC office environment.