Senior Software Engineer, Data Infrastructure (RDBMS)

Xapply; Canada; Hybrid; CAD 140,000 - 210,000; Full time

Job summary

Xapply in Canada is seeking a Senior Software Engineer, Data Infrastructure (RDBMS) to design, operate and scale relational database infrastructure for petabyte-scale workloads.

You will own critical parts of the serving layer, optimize query performance, design schemas, and drive reliability and cost efficiency in a distributed, async-first environment with PostgreSQL and other distributed DB tech.

Job description

Description:

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer, Data Infrastructure (RDBMS) based in Canada.

As a Senior Software Engineer, Data Infrastructure (RDBMS), you will design, operate, and scale relational database infrastructure supporting petabyte-scale data workloads. You will own critical parts of the serving layer, from query performance and schema design to availability, reliability, and infrastructure cost. Working with PostgreSQL and distributed database technologies, you will help ensure customer-facing systems remain fast, resilient, and scalable. The role combines deep database engineering with automation, observability, data replication, and AI-assisted development. You will collaborate with experienced engineers in a distributed, async-first environment where technical ownership and operational excellence are highly valued. This is an opportunity to solve complex infrastructure challenges while building systems that support mission-critical products used at significant scale.