Senior/Staff Software Engineer (Opensource)

Staffing Science is working with a rapidly growing startup in the open-source AI and developer tooling space. They are seeking a Senior/Staff Full Stack Engineer to design and build core developer infrastructure powering AI-native applications, focusing on developer tools and infrastructure.

Responsibilities:

• You'll help design and build core developer infrastructure powering AI-native applications
• Production-grade TypeScript SDKs
• Developer-facing APIs and abstractions
• React-based integration frameworks
• AI integration layers
• Developer experience tooling
• Open-source frameworks used by engineering teams

Requirements:

• Developer Tools / DevEx (Required) You must have experience building developer-facing products, such as: SDKs, Frameworks or libraries, Developer platforms, APIs used by engineers, CLI tools, Internal developer tooling
• Experience in open source or developer tooling companies is required
• TypeScript (Required)
• Expert-level TypeScript
• Strong Node.js experience
• Experience across frontend and backend
• Strong API and architecture skills
• React (Required) You understand React beyond components, including: Hooks architecture, Lifecycle behavior, SDK integrations, Reusable abstractions, Performance considerations
• SDK or developer infrastructure experience
• Open-source contributions or OSS company background
• DevEx or developer tooling products
• LLM or AI integration experience