[Hiring] Senior Software Engineer II, Page Builder @Instacart

Role Description

We're transforming the grocery industry. At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community.

The Page Builder team is part of Instacart’s Retailer Platform organization within Core Experience Engineering. We own the content infrastructure that powers every consumer-facing page at Instacart. We’re looking for a Senior Software Engineer to lead high-impact platform initiatives that accelerate every team building on Instacart’s content layer.

• Lead the CMD service extraction: architect and drive the migration of our Content Management Domain from a Ruby monolith into a dedicated Go service using a strangler-pattern approach.
• Design composable extensibility: replace 125+ hardcoded placement format types with a single composable type built on React components and Liquid templates.
• Shape the AI-native content platform: expose Page Builder capabilities as MCP-compatible endpoints.
• Drive cross-team architecture: own the technical relationship with Shopping/URSA, Feeds, Growth, Loyalty, and Ads.
• Mentor and multiply the team: raise the engineering bar across Page Builder by mentoring engineers and establishing robust design patterns.

Qualifications

• 5+ years of professional software engineering experience.
• Strong backend engineering skills with production experience in Go, Ruby, Java, or similar systems-level languages.
• Proven track record designing and leading large-scale technical projects.
• Experience building and operating high-throughput, low-latency backend services.
• Experience with platform-focused API design (gRPC/Protobuf, GraphQL, or REST).
• Demonstrated ability to drive technical decisions across team boundaries.
• Experience mentoring engineers and elevating team-wide technical standards.
• Strong written and verbal communication skills.

Requirements

• Background with content management systems, page builders, or CMS infrastructure.
• Hands-on Go experience, including goroutines, channels, and building high-concurrency services.
• Monolith-to-microservice migration experience using patterns like strangler fig.
• Experience building self-serve tooling for business users.
• Experience with multi-tenant platform architecture.
• Familiarity with AI/LLM integration patterns.
• Frontend experience with React/TypeScript (helpful, not required).
• Experience at companies with analogous products or platforms.
• Experience with Protobuf/gRPC and proto-first API design.
• Familiarity with e-commerce or marketplace platforms.

Benefits

• Highly market-competitive compensation and benefits.
• Remote work flexibility.
• New hire equity grant and annual refresh grants.