Senior Software Engineer; Middleware
About the role
The Senior Software Engineer; Middleware team at Amplitude is responsible for the compute layer that powers analysis across Amplitude's product suite. This includes working with data management, marketing analytics, Session Replay, Experiment, CDP, Query, and various product teams.
Responsibilities
Design and build core parts of the query/compute engine that powers analysis across Amplitude's product suite.
Evolve the compute API and semantic layer that other engineering teams build features on top of, so that it can support a more generic table.
Help unify and evolve our core data model, including how non-event data (profile properties, lookup tables, etc.) is represented alongside event data.
Improve the performance, reliability, and scalability of query planning and execution on the Amplitude query engine.
Partner with teams across Session Replay, Experiment, CDP, Query, and frontend to understand their needs and shape the compute layer around them.
Take ownership of projects end-to-end, from design through rollout.
Requirements
Strong backend or distributed-systems engineering experience, ideally touching OLAP databases, query engines, or data infrastructure.
Experience with SQL, query planning/execution, or building APIs that many other engineering teams depend on.
Comfort reasoning about tradeoffs between flexibility, performance, and ease of use and making deliberate calls between them.
A track record of owning ambiguous, cross-team projects end-to-end rather than just executing well-scoped tickets.
Strong cross-functional collaboration skills; this team's work only matters in the context of the products built on top of it.
Qualifications
Experience with large-scale event or time-series data systems.
Experience designing semantic layers, ORMs, or other data-modeling abstractions.
Familiarity with columnar databases or OLAP query engines.
Experience integrating a data platform with external tools or AI/agent workflows.
Skills
Backend or distributed-systems engineering
SQL, query planning/execution
Collaboration and project management
Experience with large-scale event or time-series data systems
Experience with semantic layers, ORMs, or data-modeling abstractions
Familiarity with columnar databases or OLAP query engines
Experience with external tool integration or AI/agent workflows
Benefits
Amplitude offers a comprehensive benefits package including excellent medical, dental, and vision insurance, flexible time off, parental leave, and more. Employees also have access to a variety of wellness programs, including mental health and wellness benefits, and the opportunity to participate in the Employee Stock Purchase Program (ESPP).
Pay
$167,000 - $230,000 base salary (inclusive of bonus or commission)
Schedule
Full-time position