AI Engineer II
 Microsoft | |
 United States, Texas, Irving | |
| 7000 State Highway 161 (Show on map) | |
 Sep 21, 2025 | |
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OverviewSecurity represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft's mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers' heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.NEXT is the research and incubation arm of Microsoft Security AI (MSECAI), building the next generation of AI native security products, and we're looking to hire an AI Engineer II. In the 18 months since our founding, we've driven the science behind Microsoft Security Copilot and delivered both foundational and specialized models. We pursue long horizon bets while landing near term impact, taking ideas from 01 prototypes to MVPs and then 1N platform integration across Defender, Sentinel, Entra, Intune, and Purview. Our culture blends ambition and scientific rigor with curiosity, humility, and customer obsession; we invest in new knowledge, collaborate across world class scientists and engineers, and tackle the immense challenge of protecting millions of customers. Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.
ResponsibilitiesDesign, build, and operate AI-powered cloud services and APIs in Azure using C#/.NET and Python (AKS, Container Apps, Functions, App Service)Implement LLM/RAG/agentic workflows: retrieval, grounding, function/tool calling, and safe automation for investigation and remediation with human-in-the-loop controlsBuild data and indexing pipelines: embeddings, vector search (Azure AI Search, Cosmos DB vector, Postgres+pgvector), and connectors to Microsoft security data (Defender, Sentinel) and ADX/KustoAdd evaluation, safety, and observability: golden datasets, automated regressions, prompt/response guardrails and content filters, prompt-injection/jailbreak defenses, metrics/dashboards/alertsOptimize inference and service performance/cost: batching, caching, streaming, model selection/routing, multi-region deployment, and fallback strategiesShip securely: threat modeling, least-privilege access, Managed Identity/Key Vault, encryption, data minimization, consent/policy enforcement, and audit loggingOwn CI/CD and IaC: GitHub Actions or Azure DevOps; Docker/Kubernetes; Bicep/Terraform; canary/ring deployments, safe rollbacks; participate in on-call and improve SLOsContribute to reusable SDKs/services for RAG, agent runtime, and tool/action APIs; write high-quality documentation and conduct code/design reviewsCollaborate with researchers, PMs, and partner teams to translate scenarios into production features with clear KPIs (precision/recall, MTTD/MTTR, latency, cost) | |