Senior Engineer – Auth

Job not on LinkedIn

🕒 February 26

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Datum

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2024

☁️ SaaS

🤖 Artificial Intelligence

🏢 Enterprise

SaaS • Artificial Intelligence • Enterprise

Datum is a company building an open network cloud platform that gives cloud- and AI-native builders control over foundational internet infrastructure without requiring a dedicated network team. Its product provides cloud-native networking and runtime services — DNS, proxies, gateways, VPCs/tunnels, metrics, secrets, domains and developer tools — packaged as an open-source, AGPLv3-backed platform intended to be deployable by modern service providers and enterprises. Datum targets builders and platforms that need private, deterministic connectivity and observability for AI agents, edge services, and specialized clouds.

📋 Description

• Design, implement, and run Datum's core authentication and authorization stack • Build customer-facing solutions to help our alt-cloud ecosystem thrive • Scale the management, monitoring, and metering of every actor in our system, human or not • Partner with leadership to advance projects with key customers, partners, and suppliers • Design distributed solutions that scale from startup to hyperscale usage patterns • Implement intelligent traffic routing, load balancing, and failover • Build observability, monitoring, and diagnostic tools for complex environments • Optimize control plane performance for AI workloads and high-bandwidth applications with our network team • Drive technical networking decisions in collaboration with our open-source community • Review and mentor contributions from external developers on networking components • Maintain high code quality standards and documentation for network APIs • Represent Datum at conferences and in technical working groups • Design networking solutions that integrate seamlessly with Kubernetes and AI patterns • Build network policies and security frameworks for multi-tenant cloud environments • Implement service mesh integration and east-west traffic optimization • Ensure compatibility with major cloud provider networking services (AWS, GCP, Azure)

🎯 Requirements

• Strong working knowledge of OAuth in complex production environments with multiple IdPs, including social and commercial (AWS IAM, Azure Entra, GCP, Auth0, Okta, etc.) • Strong working knowledge of authorization (ABAC, RBAC, PBAC) and its ecosystem (Zanzibar, SpiceDB, OpenFGA, Cedar) • Experience with Workload Identity Federation and/or SPIFFE and opinions about where the puck is going • 5+ years of running large-scale production systems on Kubernetes or similar, with security as a first principle • Strong experience with distributed systems design, security, auth, consensus algorithms, async reconciliation, and fault tolerance • Enough familiarity with Kubernetes patterns and APIs that you can speak custom resources and admission controllers • Strong experience with infrastructure as code (Flux, Terraform, Pulumi) for provisioning • Familiarity with SRv6, edge computing, or modern network routing would be a huge plus • Track record of contributing to or maintaining networking-focused open-source projects • Experience mentoring engineers and driving technical decision-making in teams • Understanding of open-source governance, community building, and public development • Passion for building networking tools that other developers and operators love to use

🏖️ Benefits

• Open source leadership opportunities • Significant public development work • Engaging with community through GitHub issues, RFCs, and technical discussions • Speaking at networking conferences and writing technical blog posts • Collaborating with external contributors, cloud providers, and other partners • Maintaining high standards for code quality, performance, and documentation