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InstacartInstacart

Software Engineer II - Ads

Build and operate publisher-facing backend features for Instacart’s Carrot Ads platform, spanning APIs, serving, reporting, and partner tooling. The role requires 3+ years of backend experience, distributed-systems and API expertise, and operational ownership.

About the job

Responsibilities

  • Build and ship publisher-facing features across Storefront, Storefront Pro, and API partners, including API endpoints, serving inputs, reporting views, and configuration tooling.
  • Extend the Connect / Carrot Ads API with clear contracts, robust event handling, dead-letter recovery, integration tests, and self-service documentation.
  • Build retailer controls for relevance and quality-score inputs, reserve pricing, ad-load controls, and performance-tuning signals.
  • Strengthen reporting and data integrity through attribution, catalog and product-ID mapping, reconciliation, and automated health checks.
  • Improve partner reliability by defining and meeting SLAs, enhancing observability, reducing incidents and recovery time, and contributing to partner-health monitoring.
  • Debug partner-facing serving and reporting issues across shared serving, measurement, and quality systems.
  • Collaborate with Product, Enterprise Solutions, and Ads teams across Serving, Measurement, Ads Quality, and Ads Manager.
  • Use AI-assisted developer tools while maintaining quality and security.

Requirements

  • 3+ years of experience building and operating production backend services.
  • Strong API design and distributed-systems fundamentals.
  • Fluency in a backend language such as Go, Ruby, or Python.
  • Experience shipping features end to end with testing, observability, and operational ownership.
  • Experience debugging across service boundaries and collaborating cross-functionally.
  • Bachelor's degree in Computer Science or a related field, or equivalent practical experience.

Nice-to-haves

  • Experience in ad tech, retail media, or publisher- or partner-facing platforms.
  • Familiarity with event streaming and reliability patterns at scale, including Kafka, dead-letter queues, and idempotent processing.
  • Cloud infrastructure experience with AWS or Google Cloud, including data or measurement-adjacent systems.
  • Experience with data reconciliation, attribution, or catalog and entity mapping.
  • Experience building partner- or customer-facing APIs with documentation, error contracts, and integration test coverage.

Compensation

  • Base salary: CA$145,000–$153,000 CAD annually.
  • Eligible for a new-hire equity grant and annual refresh grants.

Skills

Go, Ruby, Python, API Design, Distributed Systems, Kafka, Dead-Letter Queues, AWS, GCP, Observability, Integration Testing, Data Reconciliation, Attribution, Entity Mapping, Ad Tech

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