Note: The job is a remote job and is open to candidates in USA. Instacart is hiring a Senior Software Engineer II for its Enterprise Foundations team, which builds integrations and platform capabilities for enterprise retailers. The role owns complex integration workstreams end to end, sets technical direction, and develops reusable patterns while partnering across engineering and business teams.

Responsibilities

• Own a multi-quarter integration workstream end to end — for example, unified customer identity across FoodStorm and Storefront Pro, international storefront and search expansion for enterprise retailers, or consolidation of bespoke retailer-vertical services onto shared Instacart platform rails — from problem framing through design, implementation, rollout, and deprecation of legacy paths
• Drive the technical direction for your area: write the ERDs, propose the options, make and defend the trade-off calls, and bring partner teams along through design reviews and written artifacts that read clearly for first-time readers
• Lead vendor and cross-team integrations where Instacart will eventually own the system — push for the right observability, fallback behavior, and cost/latency guardrails up front, and challenge partner designs early rather than inheriting them at handoff
• Build reusable patterns, frameworks, and templates that other engineers across Enterprise Foundations and adjacent teams adopt with minimal hand-holding; treat "system at a glance" docs and migration runbooks as first-class deliverables
• Operate hands-on as a senior individual contributor on the highest-leverage technical work in your area; raise the bar on design quality, code quality, observability, and operational rigor
• Mentor more junior engineers in your area, delegate well-defined implementation pieces while retaining overall technical ownership, and act as a credible technical peer to senior and staff engineers in adjacent organizations

Skills

• 7+ years of backend software engineering experience, with a track record of owning complex, multi-quarter projects end to end as a senior individual contributor
• Demonstrated ability to act as the technical DRI for cross-team workstreams — framing problems proactively, proposing options with clear recommendations, identifying risks early, and driving execution through to adoption
• Experience designing and shipping distributed systems and integrations that span multiple services, teams, or external partners in a production environment with real customers
• Strong proficiency with backend technologies in production environments (e.g., Ruby/Rails, Python, Go, or similar), along with relational databases, distributed data systems, and cloud infrastructure (e.g., AWS or GCP)
• Track record of producing durable technical artifacts — ERDs, design docs, runbooks, and reusable patterns — that other engineers can build on without ongoing direct support
• Demonstrated ability to operate in ambiguous, high-growth environments where partner roadmaps and integration commitments are still maturing, with a record of driving clarity and forward motion through that ambiguity
• Bachelor's degree in Computer Science or a related technical field, or equivalent practical experience
• Direct domain experience in commerce platforms, omnichannel retail, OMS, POS, catering systems, or connected-store / in-store technology
• Experience with customer identity, account linking, or SSO integrations across multiple consumer-facing surfaces
• Experience building or scaling search, retrieval, or ranking systems, including integrations with third-party search providers
• Background working on international expansion — localization, data residency, multi-region infrastructure, or in-country compliance requirements
• Experience leading vendor or partner-owned integrations where the system is ultimately operated and owned by the integrating team
• Experience designing per-tenant configuration, isolation, and extensibility for multi-tenant enterprise platforms

Benefits

• Eligible for a new hire equity grant as well as annual refresh grants.
• Flexibility to choose where to work—whether from home, an office, or a coffee shop—with regular in-person events.

Company Overview

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