Software Development Engineer II

Location: USA Remote Status: Fully Remote (#LI-Remote)

LivePerson (NASDAQ: LPSN) is a leader in trusted enterprise conversational AI and digital transformation. The world's leading brands use our award-winning Conversational Cloud platform to connect with millions of consumers. We power nearly a billion conversational interactions every month, providing uniquely rich data analytics and safety tools to unlock the power of conversational AI for better business outcomes. Fast Company named LivePerson the #1 Most Innovative AI Company in the world.

Position Overview

In this role as a Software Development Engineer II BE, you will be a highly contributing member of the team building Syntrix Core — the engine behind LivePerson's synthetic customer simulation platform. Syntrix enables enterprise teams to simulate realistic customer conversations at scale, accelerating contact center testing, agent training, and AI model evaluation. You will work alongside Principal Engineers and Architects to design and build the systems that power AI-driven simulations across a multi-tenant, cloud-native architecture. You must be a collaborative team player, motivated by the challenge of building reliable AI-powered infrastructure, and eager to grow through the delivery of industry-shifting products.

 

You Will: Key Responsibilities & Impact

• 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

You Have: Required Skills & Qualifications

• Bachelor's degree in Computer Science or related field
• 4+ years of software development experience
• Strong proficiency in Python, including async/await patterns, type annotations, and familiarity with the Python ecosystem (uv, ruff,  mypy)
• 3+ years of experience building microservices, RESTful APIs, and production backend systems deployed to Kubernetes
• Experience with Couchbase, PostgreSQL, Firestore, or other NoSQL/document databases
• Familiarity with Kafka
• Experience with Docker and Kubernetes for containerized, cloud-native deployments
• Strong understanding of distributed systems, including optimistic concurrency, idempotency, and stateless service design
• Solid understanding of data structures, algorithm design, and object-oriented principles
• Experience with Git and modern CI/CD workflows (GitLab CI preferred)
• Analytical and problem-solving skills with a customer-centric mindset
• Advocating and executing on automated testing strategies across all developed code

Good to have:

• Experience with AI/ML frameworks or LLM application development — LangChain, LangGraph, or similar agent orchestration tools are a strong plus
• Experience with Pydantic and Litestar (or FastAPI/Starlette)
• Familiarity with LLM providers: Anthropic Claude, OpenAI GPT, Google VertexAI

The salary range for this role will be between $130,000 - $150,000 USD. Final compensation will be determined by a variety of factors, including, but not limited to your location, skills, experience, education, and/or professional certifications.

Our Benefits & Perks

We are committed to supporting the complete well-being, health, financial security, family, and professional growth of our permanent employees.

🏥 Health & Wellbeing

• Medical, Dental, and Vision Insurance: Comprehensive plans to support your health needs.

Wellness Resources: Access to wellbeing resources and programs including our EAP plan.Health & Mental Support: Access a confidential and free Employee Assistance Program (EAP), providing professional counseling.