Eulerity
Associate Web Development Software Engineer (SDK)
About this role
Eulerity seeks an experienced SDK engineer to design and ship developer-facing software development kits for a marketing technology platform. You'll own the full SDK lifecycle—from API design and TypeScript types to documentation and backwards compatibility—while building AI-powered automation workflows and collaborating across web, mobile, and backend teams.
What you'll do
- Design, build, and ship developer-facing SDKs with clean, intuitive APIs consumed by other engineers
- Own SDK product decisions: public API surface, TypeScript types, semantic versioning, packaging, and backwards compatibility
- Build and maintain AI-powered automation workflows connecting the product to internal and external systems
- Develop and test features using AI-assisted tooling, maintain codebases, integrate with APIs, and manage the PR lifecycle
- Collaborate across teams to align on architecture, best practices, and product direction
- Partner with Product and Design to translate designs into shipped solutions
What they're looking for
- SDK/library design and shipping
- TypeScript and React (2–3 years professional experience)
- API design, semantic versioning, and backwards compatibility
- JavaScript/HTML/CSS fundamentals
- npm packaging and bundling (tsup, Rollup, Vite)
- AI/LLM integration and automation workflows
- Technical writing and developer documentation
- Code review and PR workflows
Benefits
- Medical, dental, and vision insurance
- Unlimited PTO
- 401(k) with company match
- In-office lunch stipend
- Commuter benefits
- Summer Fridays and hybrid work (3x per week in NYC)
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Eulerity
Eulerity builds an AI-native marketing automation platform that helps enterprise and franchise clients streamline multi-location marketing operations through APIs, SDKs, and integrated workflows. The company is hiring across web development, iOS engineering, solutions engineering, and forward-deployed roles to expand its platform capabilities and customer success.
- Website
- eulerity.com
Likely interview questions
- Walk us through an SDK or library you've designed and shipped—how did you approach the public API surface, and what backwards-compatibility challenges did you face?
- Describe your experience integrating LLMs or custom AI workflows into production systems. How do you ensure quality and ownership of AI-generated code?