Database Software Engineer, eBay

• The ideal candidate is equally comfortable deep-diving into PostgreSQL internals as they are building automation, middleware, and integration code that connects data systems to applications
• This role necessitates a robust combination of practical technical proficiency and the capability to guide enterprise data management strategies, with PostgreSQL serving as a foundational platform
• This is a hands-on engineering role requiring expertise in both database operations and software development, with a focus on scalability, performance, and reliability
• Proficiency in PostgreSQL and Oracle data types is essential for seamless migrations
• 7+ years of professional experience with PostgreSQL in large-scale, production environments
• Strong SQL and PL/pgSQL skills, with deep understanding of PostgreSQL internals
• Proven experience in software development (Strong expert level C/C++, Python, Go or Java)
• Experience with schema design, indexing strategies, and data partitioning
• Hands-on experience with replication, backup, and failover solutions
• Proficiency in Linux/Unix, shell scripting and Kubernetes
• Familiarity with version control (Git) and CI/CD practices
• Strong debugging and performance tuning skills across both database and application layers
• Experience with containerized environments (Docker, Kubernetes)
• Experience with cloud-managed PostgreSQL services
• Background in migrating from other database platforms (e.g., Oracle, MySQL) to PostgreSQL
• Strong analytical thinking and problem-solving skills
• Excellent communication and cross-team collaboration abilities
• Ability to balance short-term incident resolution with long-term architecture improvements
• Passion for clean, maintainable, and performant systems
• Playing a key role in planning for future database growth, implementing new technologies, and setting standards for quality and performance across the organization
• Bachelor’s or Master’s degree in Software Engineering, or related field (or equivalent work experience)

Desirable

• We are looking for a highly skilled Senior PostgreSQL Database Engineer with strong software engineering experience to design, optimize, and maintain our database platforms while also contributing to backend application development and tooling
• This role will design and implement scalable PostgreSQL database architectures for high availability, partitioning, replication, and disaster recovery
• Analyze and optimize complex queries, indexing strategies, and database configurations
• Monitor performance and proactively address bottlenecks in queries and application data flows
• Implement strong security standards (role-based access control, encryption, security best practices), and ensure compliance with organizational and regulatory requirements
• Tuning databases through query analysis (EXPLAIN plans), optimized indexing (B-tree, GIN, GiST), configuration adjustments, and query rewriting; implementing partitioning and materialized views as needed for performance at scale
• Acting as a subject matter expert for development, operations, and business teams; providing guidance on best practices, reviewing code, conducting technical documentation, and mentoring database and engineering staff
• Develop tools, scripts, and services to automate database provisioning, monitoring, backups, migrations, and deployments
• Write backend services or APIs that integrate with PostgreSQL for application use cases
• Implement PL/pgSQL functions, triggers, procedures to support business logic
• Implement robust database security policies, encryption, and role-based access controls
• Design and maintain high availability and disaster recovery strategies
• Ensure compliance with industry regulations and internal security standards
• Mentor developers and junior database engineers on SQL optimization, schema design, and performance tuning
• Work closely with DevOps/SRE teams on CI/CD pipelines for database changes
• Participate in incident response and root cause analysis for production database issues