← All roles

Sr Software Engineer II - Ads Manager (Front End)

Instacart· Software Engineering
Apply on company site
Hybrid (Canada (Remote))$196k - $207kFull-timePosted 3w ago

About the role

Senior Frontend Engineer II (L6) on the Ads Manager team responsible for owning the frontend technical roadmap, modernizing architecture, and scaling complex campaign management and reporting interfaces, while elevating the component library, design system, performance, and accessibility.

Responsibilities

  • Lead the technical roadmap and architecture for Ads Manager’s web applications, balancing near-term delivery with long-term scalability and extensibility.
  • Design, build, and maintain high-quality React UIs for campaign creation, management, reporting, and optimization.
  • Define and evolve shared components, state management, and abstractions that make the surface easier to extend and maintain.
  • Partner with backend teams on API and data contracts that enable robust, observable, and cost-efficient systems.
  • Collaborate with other frontend leads and peers across the company to build alignment on frontend standards and best practices.
  • Champion observability, performance, and reliability for Ads Manager, including metrics, logging, tracing, and on-call readiness for critical flows.
  • Proactively drive modernization and technical debt paydown, including migrations and refactors of legacy frontend code.
  • Embed security-by-design into frontend architecture and lead response for significant security or reliability issues touching Ads Manager UI.
  • Propose and lead team-wide and cross-team initiatives on behalf of the EM, aligning stakeholders and driving execution across Ads and partner teams.
  • Actively work with designers to build a best-in-class experience for users.
  • Mentor and sponsor engineers up to L5, improve onboarding and team practices, and help resolve cross-team execution issues.
  • Help define how the team uses AI-assisted development tools (for code, tests, and refactors), including patterns and best practices.

Qualifications

  • 8+ years of experience building modern web applications, with substantial ownership of complex, user-facing products.
  • Deep expertise in Node.js and React (hooks, state management, performance tuning) in large codebases.
  • Strong skills in frontend architecture: modularization, shared components, routing, data fetching, and error handling.
  • Experience designing and integrating with REST and/or GraphQL APIs, working closely with backend teams.
  • Proven track record leading large, ambiguous, multi-stakeholder projects from design through rollout and operations.
  • Demonstrated impact on team productivity and code health through abstractions, tooling, testing, and CI improvements.
  • Experience with monitoring and observability for web apps (e.g., Datadog or similar).
  • Comfortable using AI-assisted developer tools in day-to-day work and interested in scaling their use across the team.
  • Excellent communication and collaboration skills with engineers, PMs, designers, and other partners.

Skills

Required:ReactNode.jsFrontend architectureREST/GraphQL APIsObservability

Benefits

  • Currently, eligible for a new hire equity grant as well as annual refresh grants.
  • Highly market-competitive compensation and benefits in each location where employees work.
  • Flex First remote work policy with options to work from home, office, or other locations while staying connected.
Last updated Oct 1, 2026. Interested? Apply on the company site.
Instacart logo

About Instacart

Marketplace for grocery delivery and pickup

Instacart is the North American leader in online grocery and one of the fastest-growing companies in e-commerce. Instacart’s same-day delivery and pickup services bring fresh groceries and everyday essentials to busy people and families across the U.S. and Canada in as fast as an hour. Since its founding in 2012, Instacart has become an essential service for millions of families, while also serving as an immediate, flexible earnings opportunity for hundreds of thousands of shoppers across North America. The company partners with more than 350 retailers and delivers from more than 25,000 stores across more than 5,500 cities in North America. Today, Instacart is accessible to more than 85% of households in the U.S. and more than 70% of households in Canada.

grocerydeliverye-commerce
Company profileWebsite

More open roles at Instacart