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.

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.

• 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

• 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.

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

• 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.

• 401(k) Retirement Plan: To help you plan for your financial future by offering both the plan and a 4% employer match (100% match on the first 3% contribution and 50% match on the next 2% contribution)

HSA & FSA Plans:  To help you plan for health related expenses on a pre-tax basis

• Employee Stock Purchase Program (ESPP): Participate and receive a discount on company shares, allowing you to directly share in LivePerson's success and growth.
• Additional Insurances: Basic and supplemental  life insurance,  Accidental Death & Dismemberment (AD&D) insurance, long-term and short-term disability insurance coverage, legal plan, identity theft protection plan, and critical illness supplemental insurance.
• Development: Access to internal professional development resources.

• Flexible Paid Time Off (PTO): Discretionary PTO package for flexible days off with manager approval.
• Paid Public Holidays.
• Generous Parental Leave Policy: Including maternity/paternity support and fertility services.

• Remote-First Model: This role is fully remote (#LI-Remote), offering excellent work-life balance and flexibility. We also maintain dedicated WeWork space for those who wish to meet colleagues or collaborate in person.

As leaders in enterprise customer conversations, we celebrate diversity, empowering our team to forge impactful conversations globally. LivePerson is a place where uniqueness is embraced, growth is constant, and everyone is empowered to create their own success. We're very proud to have earned recognition from Fast Company, Newsweek, and BuiltIn for being a top innovative, beloved, and remote-friendly workplace, and recognized by Gartner as a leader in the Conversational AI space.

We are committed to fostering an inclusive workplace and are proud to be an Equal Opportunity Employer (EOE). We believe that diverse perspectives drive innovation. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or other characteristics protected by US Federal, State, or Local law.

LivePerson is dedicated to the accessibility needs of our applicants and employees. We provide reasonable accommodations to job applicants with disabilities. Applicants who require a reasonable accommodation for any part of the application or hiring process should inform their recruiting contact upon initial connection.

The talent acquisition team at LivePerson has recently been notified of a phishing scam targeting candidates applying for our open roles. Scammers have been posing as hiring managers and recruiters in an effort to access candidates' personal and financial information. The phishing scam is not isolated to only LivePerson and has been documented in news articles and media outlets.

Please note that any communication from our hiring teams at LivePerson regarding a job opportunity will only be made by a LivePerson employee with an @liveperson.com email address. LivePerson does not ask for personal or financial information as part of our interview process, including but not limited to your social security number, online account passwords, credit card numbers, passport information, and other related banking information. If you have any questions and or concerns, please feel free to contact [email protected]