Senior Software Engineer, Elasticsearch

About GitHub GitHub is the world’s leading platform for agentic software development — powered by Copilot to build, scale, and deliver secure software. Over 180 million developers, including more than 90% of the Fortune 100 companies, use GitHub to collaborate, and more than 77,000 organisations have adopted GitHub Copilot. Locations In this role you can work from Remote, United States Overview The Elasticsearch team at GitHub owns the infrastructure and code that powers searching Issues, Pull Requests, Projects, Discussions and more. We're responsible for the creation and management of large-scale Elasticsearch clusters (hundreds of terabytes of data serving multiple thousands of reads and writes per second). Our problem space also includes optimizing index creation, population, repair and reindex processes to ensure that indexes with billions or trillions of records are recoverable, correctly mapped, and can be restored quickly. At the same time we're also focused on pushing the boundaries of cluster management, scale and availability.     We're looking for a senior search and data focused engineer to join the team and help us build the future of Search at GitHub. Our top priorities include scaling support for both agentic and human-driven traffic, improving relevance tooling for teams that build search experiences, and building an API-driven interface between our relational data and search indexes.

Responsibilities     Infrastructure Development and Management  Builds and enhances the physical and/or virtual frameworks and tools that are used to manage and maintain the infrastructure. Helps create scalable and efficient systems, automates processes, and improves overall infrastructure performance. Participates in capacity planning and design initiatives.  With minimal guidance, assesses infrastructure capacity needs, predicts growth trends, and plans for scalability. Ensures sufficient resources are allocated and infrastructure is properly scaled to handle increasing demands. Expands infrastructure/platform offerings to meet business and developer needs.  Site Availability and Performance  Acts as the first point of contact for user issues in this area of responsibility. Engages with other teams to diagnose and respond to broad incidents. Solicits information from customers to form an understanding of the nature of the outage and identify potential troubleshooting steps.  Ensures the security and compliance of the infrastructure. Collaborates with security teams to implement and maintain robust security measures, conduct vulnerability assessments, and adhere to relevant regulatory standards. Performs timely upgrades to applications/open-source software (OSS)/operating systems used for operation of the infrastructure.  Establishes appropriate observability and monitoring of infrastructure to proactively identify and address situations, including instructional playbooks. Researches and understands performance gaps or outages. Executes disaster recovery/failure test scenarios.  Elasticsearch Infrastructure and Management  Identifies areas for optimization, implements innovative solutions, and drives initiatives to enhance system performance, reliability, and scalability.  Stays updated with latest technologies, industry trends, and best practices in infrastructure engineering. Implements projects that incorporates these into GitHub platforms.    Troubleshooting  Understands how to read and assess common errors to form accurate diagnoses and create or direct fixes. Remains on-call to handle incidents and outages, investigating and resolving issues promptly to minimize the downtime and impact on services. Contributes to incident management processes, participates in incident report-out, identifies root causes, and implements preventive measures to avoid similar incidents in the future.    Collaboration  Contributes to open-source projects.