Senior Infrastructure Security Engineer II
at Instacart
Remote
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. 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.
Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table.
Instacart is a Flex First team
There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work.
Overview
We’re seeking a Senior Infrastructure Security Engineer to join our security engineering organization. You will tackle complex, high‑scale challenges across Instacart’s platform — from securing systems supporting thousands of concurrent shoppers to protecting the services processing millions of real‑time data points.
As a senior member of the security team, you will drive foundational security initiatives, influence architectural decisions, and elevate engineering‑wide security practices. This role offers broad technical ownership and the chance to strengthen the security posture of a fast‑growing, highly distributed environment.
About the Job
As a Senior Infrastructure Security Engineer, you will:
- Lead security strategy and execution for AWS and GCP cloud environments.
- Architect, build, and deploy automated security controls and enforcement systems, such as:
- IAM governance and configuration management
- Container and host security (Docker, Kubernetes)
- Vulnerability management pipelines
- PKI and secret management tooling
- Collaborate with incident response teams to design and implement cloud‑native detection and response capabilities.
- Work closely with IT, SRE, and infrastructure teams to harden corporate, endpoint, and production systems.
- Provide security guidance to engineering and product teams, influencing service design and implementation.
- Mentor junior and mid‑level engineers and help develop long‑term security roadmaps.
- Participate in and help improve the on‑call rotation for critical security and infrastructure incidents.
About You
Minimum Qualifications
- 7+ years of experience in software engineer, infrastructure, and/or cloud with a deep focus in cloud/infra security engineering over the last few years.
- Deep expertise in AWS security; GCP or Azure experience is a plus.
- Strong programming experience (Python, Ruby, Go, or Shell) with a history of building internal tools or contributing to open‑source projects.
- 3–5 years of experience working with containerized environments and orchestration platforms (Docker, Kubernetes).
- Experience scaling infrastructure and enforcing controls using Terraform or other IaC tools.
- Strong understanding of distributed systems and service‑oriented architectures.
- Strong foundational knowledge of systems and networking (TCP/IP, kernel internals, memory management, file systems), especially on Linux.
- Ability to work collaboratively with engineering partners and navigate security vs. productivity trade‑offs.
- Highly desirable: hands‑on experience with attack patterns, adversary behaviors, and system‑specific hardening of one or more of:
- Windows / AzureAD
- Linux
- macOS
Preferred Qualifications
- Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
- Experience leading security architecture reviews or cross‑team initiatives.
#LI-Remote
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. Please review our Flex First remote work policy here.
Offers may vary based on many factors, such as candidate experience and skills required for the role. Additionally, this role is eligible for a new hire equity grant as well as annual refresh grants. Please read more about our benefits offerings here.
For US based candidates, the base pay ranges for a successful candidate are listed below.