At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.
Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet.
Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.
About the Team and Role:
TCGplayer connects hobbyists and hobby businesses to communities. We relentlessly improve the exchange of things and thoughts that fuel passions, providing the most compelling destination and tools for collectible card game enthusiasts and professional sellers! TCGplayer, now a part of eBay, promotes and drives growth of our products and services by connecting a global community of millions of buyers with tens of thousands of retailers in a $25B global collectible hobby market.
As a Software Engineer III, you will help design, build, and maintain the systems that power TCGplayer's Customer Experience (CX) platform. Your work will enable our CX agents to efficiently support both Buyers and Sellers across every aspect of TCGplayer's business. You will uplift legacy applications into a microservice-based architecture, integrate with internal systems of record and third-party ticketing and AI systems, and collaborate closely with other development teams to deliver a cohesive and intuitive customer support experience.
Build and deliver AI-powered features for a modern CX platform by developing LLM-based services, automation workflows, and intelligent APIs. Contribute to migration from .Net (C#) to a Python-based AI-native architecture.
What you will accomplish:
Develop AI-powered backend services and APIs using Python
Build LLM-based solutions including RAG pipelines and retrieval systems
Implement CX use cases like summarization, recommendations, and automation
Integrate AI services with existing systems and APIs
Optimize performance, latency, and cost of AI solutions
Ensure production readiness with logging, monitoring, and testing
Develop MCP, enterprise-grade agentic AI workflows, and a range of modern AI solutions
What you will bring:
4+ years of strong experience in Python; C#/Java knowledge is a plus
Experience with LLM APIs, prompt engineering, and basic RAG concepts
Hands-on with frameworks like LangChain, LlamaIndex, or similar
API development (FastAPI/Flask) and microservices
Basic cloud experience (AWS / Azure / GCP)
Familiarity with Docker, CI/CD, Terraform.
Relational DB: PostgreSQL, MySQL
NoSQL: MongoDB (good to have)
Vector DBs: Pinecone, FAISS, Weaviate, or pgvector (basic experience)
Search: Elasticsearch (basic experience)
Bachelor’s/Master’s in Computer Science or related field
Experience building or integrating AI/ML solutions in production
Experience in CX / support tools is a plus
Exposure to evaluation and monitoring of AI systems is a plus
Understanding of cloud-native development is a plus
Additional Details
eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, veteran status, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at [email protected]. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities.
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Skills Required
- 5+ years of software development experience
- Strong proficiency in C#
- Experience with AWS or comparable cloud infrastructure
- Full-stack development experience
- Bachelor's degree in computer science or equivalent
eBay Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about eBay and has not been reviewed or approved by eBay.
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Healthcare Strength — Medical, dental, and vision coverage begin on the date of hire, complemented by mental health resources, an EAP, disability coverage, FSAs, and wellness initiatives.
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Leave & Time Off Breadth — A robust mix of PTO, paid holidays, flexible work styles, parental leave, and a four‑week paid sabbatical after five years supports work‑life balance.
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Equity Value & Accessibility — Total compensation commonly includes stock components, with access to an employee stock purchase plan at a discount and stock awards enhancing overall packages.
eBay Insights
What We Do
eBay Inc. is a global commerce leader that connects millions of buyers and sellers around the world. We exist to enable economic opportunity for individuals, entrepreneurs, businesses and organizations of all sizes. Our portfolio of brands includes eBay Marketplace and eBay Classifieds Group, operating in 190 markets around the world. We offer sellers the ability to grow a business with little barrier to entry regardless of size, background or geographic location. We never compete with our sellers. We win when our sellers succeed. Buyers who shop on our Marketplace and Classifieds platforms enjoy a highly personalized experience with an unparalleled selection at great value.
