Senior Software Engineer, Fullstack

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.

Who We Are

TCGplayer, now a part of eBay, connects a global community of millions of buyers with tens of thousands of retailers in a $25B global collectible card game and collectible hobbyist space. We pride ourselves on a culture of inclusion that fosters camaraderie, embraces diversity, and exudes passion. We are one of New York State’s 50 best employers and Fortune.com’s top 100 companies for women in the U.S!

The TCGplayer Warehouse Management System (WMS) team works on developing software solutions to help the Seller and Buyers of Trading Card Games.

We are building a full-service product to facilitate the authentication of TCGs so that buyers and sellers can interact with confidence, knowing their products are genuine and at a fair market price. In addition to that, the team is building a full WMS encapsulating Receiving, Inventory, Picking, and Shipping.

The Impact You Will Make Here

The Senior Software Engineer is responsible for coordinating the design, development, and implementation of software solutions. This role combines technical expertise with leadership skills to guide a team of developers, ensure outstanding deliverables, and drive the successful completion of projects. Candidates must have in-depth software development expertise, proven ability to deliver complex solutions, hands-on experience with Java and GCP, and capability to lead a small engineering team autonomously.

• Architect, design, develop and test complex, multi-tier distributed Warehouse Management System software systems
• Lead architecture discussions, develop well-documented design docs, and facilitate development and code reviews ensuring alignment with industry standards
• Work with product managers, collaborators, and cross-functional teams to build software solutions that fulfill functional and non-functional needs, establish project plans and deliverables
• Estimate engineering effort, plan execution cycles, and roll out system changes
• Identify and address performance bottlenecks in software systems & ensure systems are secure, scalable, and maintainable
• Write Unit and Integration tests and ensure software developed meets high quality standards
• Stay updated on emerging technologies and integrate them into development processes whenever applicable
• Function as a team leader utilizing communication, leadership, and problem-solving skills

What You Bring to the Team

• Bachelor’s degree in Computer Science or related field plus 8+ years of experience or Master’s degree in Computer Science or related field plus 7+ years of hands-on experience in building large-scale distributed systems
• Strong expertise in front-end technologies such as HTML, CSS, JavaScript, and React
• Strong expertise in designing and developing REST API
• Extensive hands-on experience and expertise in object-oriented design methodology and application development using Java/J2EE and Kotlin, including frameworks such as Spring Boot
• Hands-on experience with Google Cloud Platform (GCP), particularly in Google Cloud Run and deployment pipelines
• Deep understanding of SQL Databases, with an emphasis on Postgres. Familiarity with tuning systems, architecture, thread management, and problem analysis
• Expertise with Terraform deployments