Software Development Engineer II

LivePerson is a leader in trusted enterprise conversational AI and digital transformation. In this role as a Software Development Engineer II, you will contribute to building the Syntrix Core platform, enabling realistic customer conversations at scale and working alongside Principal Engineers to design AI-driven simulations.

Responsibilities:

• Learn new technologies and architectures, including work with uniform data layers, integrations with contact center providers, and new product development
• Work with leadership to bring your engineering experience to the table and ideate new features and functionality
• Design, build, and maintain Python-based backend services that orchestrate AI agent workflows using LangChain and LangGraph
• Contribute to the development of a multi-tenant simulation platform handling high volumes of concurrent AI-driven conversations in a public cloud environment
• Integrate with contact center providers (such as LivePerson) and external LLM providers through a unified gateway abstraction
• Build and extend REST APIs using the Litestar framework, following strong typing and Pydantic-based data modeling patterns
• Work with Couchbase for conversation state persistence, implementing optimistic concurrency patterns (CAS locking) for correctness in multi-pod deployments
• Write high-quality, well-tested code with a focus on behavior-driven unit and integration testing