Senior Backend Engineer - Data Integrations

Dublin · 5+ years experience · Hybrid · Posted Sep 23, 2026

At a glance

The Technical Operations team makes Toast's engineering measurable by connecting tool and resource usage, engineering metrics, and customer outcomes.
This is a Senior Backend Engineer - Data Integrations role focused on turning complex business and engineering processes into visible insights.
The team indexes heavily into agentic engineering, incorporating AI agents into system design, building, testing, and operations.

Serve as the team's technical lead, owning the end-to-end architecture and direction of services, internal tools, and data systems, and driving significant projects from design through rollout.
Design and build backend services and integrations that ingest engineering, tooling, and cost signals from multiple source systems, with clear APIs and data contracts rather than manual extracts.
Partner with the Product Owner to identify and define biggest opportunities for impact, and collaborate with teammates on end-to-end solutions.
Build the back-end that enables role-based reporting on engineering health, AI and tooling spend and ROI, and cost and capitalization, replacing recurring manual processes with durable, auditable, productized tools and analytics.
Own quality, reliability, and operational monitoring for business-critical reporting that leaders at every level depend on.
Mentor less experienced engineers and up-level the team through design reviews, constructive feedback, and agent-assisted engineering practices.

5+ years of software engineering experience designing, building, and operating production full-stack systems, including data-intensive systems that automate manual business/operational processes.
Proven ability to drive significant projects to completion from design to rollout, informed by solid technical and business understanding, working with non-engineering stakeholders.
Proficiency in at least one modern programming language (for example Python, Kotlin, or TypeScript).
Demonstrated, hands-on use of agentic engineering as a core part of how you work.
Strong backend, API integration, SQL and data modeling skills.
Proficiency in a modern web front-end stack sufficient to prototype visualizations, and review front-end work.
Ownership of the full lifecycle of what is shipped from design reviews to automated testing, monitoring, and production support.