Security Software Engineer, Infrastructure Security (Staff or Senior)
MongoDB is hiring an experienced Security Software Engineer (Staff or Senior) for its Infrastructure Security team to design and build scalable security controls and services within the MongoDB Atlas multi-cloud infrastructure. The team sits within the Site Reliability Engineering organization and works with other engineering teams to ensure the infrastructure adheres to the highest security standards. The role can be based out of the Dublin office or fully remote in Ireland.
Responsibilities
- ▹Design and build core security primitives and services that protect MongoDB Atlas compute, networking, and identity across AWS, Azure, and GCP
- ▹Build secure-by-default infrastructure using Linux security mechanisms (AppArmor, SELinux, seccomp, cgroups), Kubernetes, and eBPF to enforce runtime policies and gain deep visibility into systems behaviour
- ▹Develop APIs, automation, and tooling that manage security posture at scale (CSPM, vulnerability management, workload identity) and provide monitoring, logging, and alerting pipelines integrating with Grafana, Splunk, and Victoria Metrics
- ▹Integrate security into CI/CD and infrastructure-as-code workflows (Terraform) so security controls are versioned, reviewed, and deployed like any other code
- ▹Lead complex projects end-to-end, from problem discovery and design docs to implementation, rollout, and long-term ownership
- ▹Collaborate with SRE, platform, and product engineering teams to define secure architectures for new infrastructure and services
Requirements
- ▹5+ years of experience in Software Engineering, Site Reliability Engineering, or similar roles, preferably with relevant security work
- ▹Proficiency with at least one programming language (Java, Golang, Rust, Python, or C/C++)
- ▹Experience with infrastructure-as-code tools (Terraform) to automate security configurations and processes
- ▹Deep understanding of Linux and networking concepts, including low-level fundamentals and how they work together in complex systems
- ▹Experience building security-related features or platforms such as runtime monitoring, CSPM, or vulnerability management
- ▹Experience with a cloud provider (AWS, GCP, or Azure) and their security best practices and building blocks
- ▹Hands-on experience with Kubernetes and its security ecosystem (e.g. RBAC, OPA/Gatekeeper, Kyverno, eBPF, Falco, Tetragon)
- ▹A systems mindset: thinking about failure modes, performance, observability, and operability alongside security and correctness
Soft skills
What we offer
- ▹Employee affinity groups
- ▹Fertility assistance
- ▹Generous parental leave policy
- ▹Option to work fully remotely in Ireland
About the company
MongoDB is built for change, empowering customers and employees to innovate at the speed of the market. Its unified data platform, the most widely available and globally distributed on the market, helps organizations modernize legacy workloads and unleash AI. The cloud-native MongoDB Atlas is the only globally distributed, multi-cloud data platform, available across AWS, Google Cloud, and Microsoft Azure, serving over 67,000 customers including 75% of the Fortune 100. MongoDB is an equal opportunities employer.