Senior Staff SRE - Cloud Security & CSPM (Hybrid Dublin)

MongoDB Inc.; Dublin; Hybrid; EUR 140,000 - 190,000; Full time

Job summary

MongoDB in Dublin is seeking an experienced InfraSec engineer to safeguard our hybrid cloud platform. You will harden hosts, container workloads, and multi-cloud infrastructure with Linux security, eBPF tooling, and CSPM practices.

You will write production-grade code, manage IaC with Terraform, and drive threat modeling from design to production reliability. This role offers a hybrid work model in Dublin and a chance to impact Atlas-scale security across AWS, Azure, and GCP.

Qualifications

• 10+ years in SRE, Infrastructure Engineering, or Cloud Security Engineering.
• A track record of operating at Staff or Principal scope: defining technical direction, resolving cross-team ambiguity, and championing initiatives from conception to delivery.
• Strong coding skills in Go (Golang), Python, C, C++, or Rust.
• Proven track record of building and operating large-scale distributed systems or cloud platform infrastructure.
• Hands-on experience using Terraform, CloudFormation, or Ansible for automated infrastructure provisioning.
• Demonstrated experience owning infrastructure in Linux, Kubernetes, and at least one major cloud provider (AWS, GCP, or Azure).
• Practical experience with eBPF-based security tooling (Cilium, Falco, Tetragon).
• Direct ownership of Cloud Security and Workload Identity platforms.
• Multi-cloud expertise spanning AWS, Azure, and GCP.
• Production exposure to low-level Linux security mechanisms (seccomp, AppArmor, SELinux, cgroups).

Responsibilities

• Harden hosts and containerized workloads using Linux security mechanisms and eBPF-based tooling.
• Secure containerized infrastructure across multi-cloud environments via RBAC, network policies, and runtime threat detection.
• Build and manage automated services for CSPM, workload identity, vulnerability management, and access controls across AWS, Azure, and GCP.
• Write production-quality code and leverage Terraform to version, test, and deploy security controls as code.
• Build real-time security monitoring, logging, and alerting systems to detect anomalies and track security posture at Atlas scale.
• Lead initiatives across their full lifecycle; from threat modeling and architectural design to implementation, rollout, and long-term production reliability.

Skills

SRE / Infrastructure

Cloud Security Engineering

Staff/Principal leadership

Go / Python / C / C++/ Rust

Distributed systems

Kubernetes

Tools

Terraform

CloudFormation

Ansible

Job description

MongoDB in Dublin is seeking an experienced InfraSec engineer to safeguard our hybrid cloud platform. You will harden hosts, container workloads, and multi-cloud infrastructure with Linux security, eBPF tooling, and CSPM practices.

You will write production-grade code, manage IaC with Terraform, and drive threat modeling from design to production reliability. This role offers a hybrid work model in Dublin and a chance to impact Atlas-scale security across AWS, Azure, and GCP.