Senior Product Security Engineer, Cloud

MongoDB is seeking a Senior Product Security Engineer to drive cloud security initiatives for MongoDB Atlas and the cloud platforms that power it across AWS, GCP, and Azure. You’ll be a senior individual contributor in the MongoDB Product Security organization, a diverse team responsible for the security of all customer‑facing products, including Atlas, self‑managed/server, and a broad ecosystem of related services and tools.

Within Product Security, the Cloud Security team focuses specifically on Atlas control plane and data plane environments and the underlying cloud platforms, partnering closely with Atlas engineering, SRE, other security engineering teams, and global security operations to build and defend secure‑by‑default, large‑scale, multi‑tenant cloud services.

This role can be based in our Dublin office (hybrid working model) or remotely in Ireland.

Requirements

7+ years of experience in application, product, and/or cloud security for large-scale, customer-facing systems, ideally in a multi-cloud or SaaS environment

Strong, hands-on experience with cloud security architecture on at least one major cloud provider (AWS, GCP, or Azure), with familiarity across:

VPC/networking (segmentation, egress controls, private connectivity)

IAM (roles, policies, workload identity, cross-account access)

Keys and secrets (KMS, HSMs, secret management systems)

Container/orchestration security (e.g., Kubernetes, ECS, serverless)

Multi-tenant control planes and blast-radius reduction patterns.

Solid security architecture fundamentals: able to design and review end-to-end systems, reason about threat models and risk trade-offs, and recommend appropriate controls across application, data, and infrastructure layers

Ability to read and reason about code (e.g., Go, Java, or similar languages) and familiarity with IaC (Terraform/CloudFormation), CI/CD, and security automation tooling (e.g., CSPM, IaC scanning, SAST, SCA)

Demonstrated experience leading security reviews