SDE 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, you will be a highly contributing member of the team building Syntrix Evals — the AI evaluation framework behind LivePerson's synthetic customer simulation platform. Syntrix Evals enables enterprise teams to automatically score and analyze AI-driven conversations at scale, providing deep insight into agent performance, simulation outcomes, and LLM quality. You will work alongside the broader Syntrix engineering team to design and build the event-driven microservices, messaging infrastructure, and evaluation pipelines that power this system.

You must be a collaborative team player, motivated by the challenge of building reliable, high-throughput data pipelines, and curious about the intersection of distributed systems and applied AI.

You Will: Key Responsibilities & Impact

• Design, build, and maintain Java-based services that process simulation lifecycle events and conversation data through event-driven pipelines
• Build and extend the transport-agnostic messaging library supporting RabbitMQ, Apache Kafka, and Google Cloud Pub/Sub
• Contribute to the LLM evaluation pipeline — resolving Freemarker-templated metric prompts, calling the LLM Gateway, and storing scored results in Couchbase
• Develop and extend the Evals REST API for querying simulation results, conversation assessments, and agent performance metrics
• Work on routing and fan-out logic in the simulation event router, bridging Kafka streams and RabbitMQ queues in a hybrid architecture
• Implement reliable message processing patterns: retry with exponential backoff, Dead Letter Queues, and idempotent operations for correctness across multi-pod deployments
• Maintain and evolve the custom metrics model, including classification criteria, success criteria, and multi-select evaluation support
• Work with Couchbase for document persistence, implementing optimistic concurrency patterns (CAS locking) for consistency under concurrent processing
• Write high-quality, well-tested code with a focus on behavior-driven unit and integration testing
• Participate in on-call rotation and contribute to production observability with structured logging, Prometheus metrics, and OpenTelemetry tracing

You Have: Required Skills & Qualifications

• 4+ years of software development experience
• Strong proficiency in Java, including Java 21 features, and experience with the Spring Boot ecosystem (Spring Data, Spring AMQP, Spring Actuator)
• Experience building event-driven services with message brokers such as RabbitMQ, Apache Kafka, or Google Pub/Sub
• Familiarity with Couchbase, MongoDB, or other document/NoSQL databases
• Experience with Docker and Kubernetes for containerized, cloud-native deployments
• Solid understanding of distributed systems concepts: optimistic concurrency, idempotency, retry strategies, and stateless service design
• Experience with Git and modern CI/CD workflows (GitLab CI preferred)
• Solid understanding of data structures, algorithm design, and object-oriented principles
• Analytical and problem-solving skills with a customer-centric mindset
• Commitment to automated testing strategies across all developed code

Good to have:

• Experience with Apache Avro or other binary serialization formats (Protobuf, Thrift)
• Familiarity with LLM integration or AI evaluation frameworks
• Experience with template engines such as Freemarker or similar
• Familiarity with Google Cloud Platform (GCP) and GKE
• Experience with Prometheus/Grafana for metrics and observability
• Exposure to multi-tenancy patterns in SaaS or enterprise platforms

Will be expected to use:

• Programming Language: Java 21
• Frameworks: Spring Boot 3, Spring AMQP, Spring Data Couchbase
• Messaging: RabbitMQ (AMQP + Streams), Apache Kafka, Google Cloud Pub/Sub
• Serialization: Apache Avro, Jackson JSON
• Database: Couchbase
• Build Tools: Maven and Gradle
• Deployment: Docker, Kubernetes (GKE)
• Observability: SLF4J/Logback (logstash-logback-encoder), Prometheus, OpenTelemetry
• Version Control: GitLab
• Collaboration: Agile/Scrum, Jira, Confluence

The salary range for this role will be between $120,000 to $135,000 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.

💰 Financial Security & Growth

• 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.

👨‍👩‍👧‍👦 Time Away & Family Support

• 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.

💻 Workplace Flexibility

• 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.

Why You’ll Love Working Here

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.

Belonging at LivePerson: Equal Opportunity Employer

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.

Accessibility Commitment

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.

Important Candidate Notice

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]