Security Engineer

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. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers.

• Identify business-critical risks across Instacart's cloud accounts, identity stack, AI/agent platforms, and product services.
• Define remediation strategies that scale: prefer guardrails and platform changes over one-off fixes.
• Build secure-by-default primitives — policy-as-code, paved-road infra modules, identity and access frameworks — that make the safe path the easy path for product teams.
• Operate the SaaS and internal security platforms that back those guardrails (CSPM, IAM governance, vulnerability management, AMI/image supply chain, secrets, audit) and extend them with internal tooling when off-the-shelf falls short.
• Lead investigations, root-cause incidents and findings, and drive variant analysis across the codebase to make sure a class of bug is gone — not just one instance.
• Coach and mentor engineers across security and other functions.

• 5+ years in security engineering, with depth in at least two of: cloud security (AWS/GCP), identity & access engineering, vulnerability management at scale, or secure infrastructure platform engineering.
• 3+ years of experience performing code reviews and design reviews.
• Proficiency in Python or TypeScript sufficient to build and maintain internal services (APIs, scanners, dashboards) — not just glue scripts.
• Working knowledge of cloud IAM (roles, trust policies, federation, SCPs/org policies) and the attack paths it enables when misconfigured.
• Hands-on Infrastructure-as-Code experience (Terraform, CloudFormation, or equivalent).
• Experience driving a remediation program end-to-end: discovery → ownership routing → fix → measurement → prevention.
• Understanding of SaaS architectures, common risks, and threat models.
• Experience with Variant Analysis, Root Cause Analysis, or Secure Frameworks.

• Instacart provides highly market-competitive compensation and benefits in each location where our employees work. This role is remote and the base pay range for a successful candidate is dependent on their permanent work location.