Principal SWE, Point of Sale

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 the 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 Principal Software Engineer, you will be leading large, strategic, or complex areas that have a clear impact on the success of the company. Your team will be primarily responsible for building and maintaining TCGplayer's Point-of-Sale product with an emphasis on facilitating the transaction with the customer. You will be uplifting legacy applications into a microservice based architecture using the latest and greatest technologies. You will work closely with other development teams to bring a cohesive and intuitive selling experience to our customers across TCGplayer's suite of tools. Due to the criticality of point-of-sale software to a seller's business, you are someone who places extra rigor on software quality, security, observability and more. If you're an experienced and disciplined engineer, with a desire to make a difference in the way we build new tools, this might be the perfect opportunity

What you will accomplish: 

• Build a best-in-class Point Of Sale system for Local Game Stores, used by thousands of customers domestically and internationally, allowing them to profitably grow their business in an omni-channel environment

• You will lean on your extensive experience to set development trends and architectural direction for your team and the Engineering organization as a whole.

• You will work with your manager to decompose and plan large technical efforts into manageable schedules to ensure the on-time delivery of software.

• You will bridge the gap between Engineering and other stakeholders such as Architecture, Ops, Product and even senior management.

• You will mentor and level up the members of your team.
   

What you will bring: 

• Bachelor's degree in computer science, information technology or a related field, or a combination of education and experience

• 12 or more years of experience as a software engineer with distributed systems

• 5+ years of C# (ASP.Net/.Net Core)

• Significant experience in high volume production systems design with consideration for high availability, disaster recovery, performance, fault tolerance, and security 

• Expert knowledge of RDBMS technologies (SQL Server, PostgreSQL) and NoSQL stores (Redis, MongoDB, Elasticsearch)

• Expert knowledge of APM (Application Process Monitoring), particularly Scalyr/DataSet for logs and New Relic for dashboards & alerting

• Expert knowledge of event/stream processing mechanisms, specifically Kafka, but also with AWS SNS/SQS, RabbitMQ, or AzureBus

• Experience designing and developing microservices in an AWS cloud based architecture 

• Excellent verbal and written communication, leadership and collaboration skills

Please see the Talent Privacy Notice for information regarding how eBay handles your personal data collected when you use the TCGplayer Careers website or apply for a job with TCGplayer.

TCGplayer, a subsidiary company of 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 are unable to submit an application because of incompatible assistive technology or a disability, please contact us at   We will make every effort to respond to your request for disability assistance as soon as possible. View our accessibility info to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities.

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