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    Home/Jobs/Senior Python Engineer, AI

    Senior Python Engineer, AI

    eBay

    United States
    5+ years
    Today
    ₹99–171 LPA
    Full-time
    Remote

    Skills Required

    LLM
    RAG
    Embeddings
    Vector Database
    Prompt Engineering
    tool/function calling
    conversation/workflow state management
    AI evaluation
    regression testing
    Python
    FastAPI
    asyncio
    REST API
    authentication
    authorization

    Description

    eBay is seeking a Senior Python Engineer, AI to design, develop, and maintain scalable backend services and AI-powered platform capabilities for their Nexpart B2B marketplace.

    Company: eBay

    Role: Senior Python Engineer, AI

    Location: Remote, United States

    Experience:

    • 5+ years of professional Python development experience in production environments

    Key Skills:

    • Python
    • FastAPI
    • asyncio
    • API-driven microservices
    • distributed systems patterns
    • caching
    • message queues
    • event-driven architectures
    • REST APIs
    • authentication/authorization
    • secure system design
    • CI/CD pipelines
    • containerized deployment workflows
    • Git
    • LLM APIs
    • embeddings
    • vector search
    • ranking
    • AI evaluation frameworks

    Qualification:

    • BA/BS in Computer Science or a related field or equivalent practical experience

    Role Focus:

    • Define technical requirements with product, business, and engineering stakeholders
    • Design, develop, and maintain Python-based applications and services for core platform workflows
    • Build and integrate scalable APIs and microservices for internal and external consumers
    • Own backend system design for reliability, scalability, maintainability, and operational excellence
    • Optimize performance using distributed technologies
    • Implement observability including logging, tracing, and metrics
    • Troubleshoot production issues and improve system resiliency
    • Participate in code reviews and contribute to engineering standards
    • Collaborate with development, QA, and business teams to deliver high-quality releases
    • Create and maintain system and technical documentation
    • Leverage AI-powered development tools to improve productivity and code quality
    • Build and productionalize LLM-enabled features such as workflow automation and intelligent routing
    • Design tool/function-calling services and orchestration layers for multi-step tasks
    • Implement RAG-style retrieval patterns to improve reliability and accuracy
    • Develop evaluation and quality frameworks for AI outputs
    • Collaborate on responsible AI practices including guardrails, data handling, and auditability

    Additional responsibilities:

    • Support high-traffic, consumer-facing applications
    • Work effectively in cross-functional, fast-paced environments

    Nice to have:

    • Experience integrating LLM APIs in production
    • Familiarity with prompt design, structured outputs, and conversation/workflow state management
    • Experience with embeddings, vector databases, retrieval pipelines, and ranking approaches
    • Experience building AI evaluation harnesses with golden datasets and regression testing
    • Exposure to ML concepts such as classification, extraction, ranking, and personalization
    • Experience with real-time or conversational interfaces and streaming systems
    • Proficiency in Spanish or other major marketplace languages

    Other:

    • Work on a global marketplace platform at scale
    • Opportunity to influence technical direction and architecture
    • Culture valuing innovation, ownership, and continuous learning
    • Competitive compensation including base pay, target bonus, and restricted stock units
    • Comprehensive benefits including medical, financial, 401(k), PTO, and parental leave
    • At-will employment with potential salary adjustments based on performance and market factors
    • Equal opportunity employer with commitment to accessibility and accommodation

    Prepare for this role

    Recommended resources to build the skills for this position. Sponsored.

    Python for Everybody Specialization

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    Coursera

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    Generative AI with Large Language Models

    Coursera

    Comprehensive LLM course covering transformer architecture, fine-tuning, RLHF, and deployment.

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