Join eBay's Nexpart engineering team as a Senior Python Engineer, AI to design, develop, and maintain scalable backend services, integrations, and platform capabilities that support critical business workflows and ongoing product innovation.

Company: eBay

Role: Senior Python Engineer, AI

Location: Remote, United States

Experience:

5+ years of professional Python development experience in production environments
Experience building asynchronous, API-driven microservices (e.g., FastAPI, asyncio)
Experience with distributed systems patterns (queues, caching, pub/sub, background processing)
Experience with CI/CD pipelines and containerized deployment workflows
Experience with Git and modern version control workflows

Key Skills:

Python
AI
LLM
FastAPI
asyncio
Distributed systems
REST APIs
Authentication/authorization
Secure system design
CI/CD pipelines
Containerized deployment
Git

Qualification:

BA/BS in Computer Science or a related field, or equivalent practical experience
Excellent English communication skills, both written and verbal
Ability to work effectively in cross-functional, fast-paced environments

Role Focus:

Define technical requirements in partnership with product, business, and engineering stakeholders
Design, develop, and maintain Python-based applications & services that power core platform workflows
Build and integrate scalable APIs and microservices for internal and external consumers
Own backend system design for service reliability, scalability, maintainability, and operational excellence
Optimize performance using distributed technologies (e.g., caching, message queues, event-driven architectures)
Implement robust observability (logging, tracing, metrics), troubleshoot production issues, and improve system resiliency
Participate in code reviews as both a contributor and reviewer; contribute to engineering standards and best practices
Collaborate closely with development, QA, and business teams to deliver high-quality releases
Create and maintain system and technical documentation as needed

Nice to have:

Experience integrating LLM APIs in production and building robust, testable AI-enabled services
Familiarity with prompt design, structured outputs, tool/function calling, and conversation/workflow state management
Experience with embeddings, vector databases, retrieval pipelines, and/or ranking approaches
Experience building AI evaluation harnesses (golden datasets, regression testing, quality metrics)
Exposure to ML concepts relevant to applied product systems (classification, extraction, ranking, personalization)
Experience with real-time or conversational interfaces (chat and/or voice) and streaming systems
Proficiency in Spanish (or other major marketplace languages) to help evaluate and validate multilingual AI outputs
Experience supporting high-traffic, consumer-facing applications

Other:

Competitive compensation and comprehensive benefits
Base pay range: $118,800 - $205,600
Opportunity to influence technical direction and architecture
A culture that values innovation, ownership, and continuous learning

Senior Python Engineer, AI

Skills Required

Description