T25 - Staff Full Stack Engineer

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.

Join the Marketing Technologies Platform Team that powers billions of communications per day sent to customers across the world. This team plays a pivotal role in delivering personalized and timely customer engagement experiences across eBay's global user base.

We are seeking a highly skilled and motivated Staff Full Stack Engineer to join our dynamic engineering team. In this role, you will be responsible for designing, developing, and maintaining scalable, high-performance, and resilient backend services using Java and related technologies. You will work closely with product managers, architects, and other engineers to deliver cutting-edge solutions that power our core applications. This position requires a strong understanding of microservices architecture, cloud platforms, and best practices in software development.

• Full-Stack Development: Lead the end-to-end development of features and applications, from concept to deployment, ensuring seamless integration between frontend and backend components.

• Frontend Expertise: Design and implement highly responsive and intuitive user interfaces using ReactJS, ensuring optimal performance, accessibility, and user experience. Utilize NodeJS for build tools, server-side rendering, or API gateways as needed.

• Backend Mastery: Develop and maintain scalable, secure, and high-performance RESTful APIs and microservices using Java and Spring Boot. Design and manage database schemas, ensuring data integrity and efficient querying.

• Architectural Contribution: Collaborate with architects and product managers to define technical strategies, system designs, and best practices. Drive architectural decisions that promote scalability, reliability, and maintainability.

• Code Quality & Best Practices: Write clean, well-documented, and testable code. Conduct thorough code reviews, enforce coding standards, and champion best practices in software development, including CI/CD pipelines.

• Troubleshooting & Optimization: Identify and resolve complex technical issues, performance bottlenecks, and security vulnerabilities across the full stack.

• Mentorship & Leadership: Provide technical guidance and mentorship to junior and mid-level developers, fostering a culture of continuous learning and improvement.

• Cross-functional Collaboration: Work closely with product owners, UI/UX designers, QA engineers, and other stakeholders to translate requirements into technical solutions and deliver impactful features.

• Innovation: Stay abreast of emerging technologies and industry trends, evaluating and recommending new tools and approaches to enhance our development processes and product offerings.

Required:

Experience: 8+ years of professional experience in full-stack web development, with a significant focus on both frontend and backend technologies.

Frontend Proficiency:

• Strong expertise in ReactJS (Hooks, Context API, Redux/Zustand, etc.).

• Proficiency with JavaScript/TypeScript, HTML5, and CSS3.

• Experience with modern frontend build pipelines and tools (e.g., Webpack, Babel).

• Familiarity with NodeJS for various frontend-related tasks or services.

Backend Proficiency:

• Extensive experience with Java and the Spring Boot framework.

• Solid understanding of RESTful API design principles and microservices architecture.

• Proficiency with relational databases (e.g., PostgreSQL, MySQL) and ORM frameworks (e.g., Hibernate, JPA).

• Experience with NoSQL databases (e.g., MongoDB, Cassandra) is a plus.

• AI Code Generation: Familiarity with foundational AI concepts and practical experience applying AI-powered coding generation (e.g., OpenAI Codex, GitHub Copilot, Anthropic Claude, Cursor, Windsurf or understanding of transformer-based code generation) will be a significant asset.

Cloud & DevOps (Preferred):

• Experience with cloud platforms (e.g., AWS, Azure, GCP) and containerization technologies (Docker, Kubernetes).

• Familiarity with CI/CD practices and tools (e.g., Jenkins, GitLab CI, GitHub Actions).

Problem-Solving: Excellent analytical and problem-solving skills with a strong attention to detail.

Communication: Strong verbal and written communication skills, with the ability to articulate complex technical concepts clearly.

Team Player: Ability to work effectively in a collaborative team environment and contribute to a positive team culture.

Education: Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Preferred:

• Experience with message queues/brokers (e.g., Kafka, RabbitMQ, SQS).

• Knowledge of CI/CD pipelines and tools (e.g., Jenkins, GitLab CI, GitHub Actions).

• Familiarity with monitoring and logging tools (e.g., Prometheus, Grafana, ELK stack, Splunk).

• Experience with performance tuning and optimization of Java applications.

• Understanding of security best practices in application development.

• Experience with Agile/Scrum development methodologies.

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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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