Amir Noohi

Researching CPU architecture optimizations for AI agentic workloads.

Leveraged the 128-bit extended PTEs developed during my internship to accelerate virtualized address translation. Designed and implemented a novel approach that fuses guest PTEs with host PTEs by securely relocating host translation metadata into the extended PTE space, achieving shadow page table performance levels without compromising security isolation. This work resulted in SagePTE, accepted at MICRO 2026. Additionally, developed extensive codebase and specifications exploring other applications of the additional 64-bit metadata space, including memory protection extensions, cache hints, and memory tiering annotations.

Extended Linux kernel page table entries (Level 3 entries) to 128-bit and modified QEMU to support this feature. QEMU modifications: fixed two-stage address translation issues, resolved address translation during page table walk, added configurable 128-bit PTE toggle. Linux kernel modifications: fixed early page table issues before transitioning to C code, resolved stack pointer overlapping with page table due to increased size during early boot, fixed early boot device mapping (map_fdt), resolved page table allocation/deallocation during boot, fixed kmem_cache indexing issues, addressed SLUB allocator randomization issues, added PTE setter/getter functions exported for kernel code, added syscalls to set/get PTEs from user space, implemented configurable 128-bit PTE support option. Developed test cases: kernel module tests for PTE modifications, user space performance tests, syscall tests for PTE set/get operations.

Founded and led a domain brokerage platform that aggregates multiple domain registrar APIs to always offer customers the best available prices. Developed an intelligent system that automatically monitors domain pricing across registrars and seamlessly migrates customer domains between providers to maintain minimum costs. Built the complete technical infrastructure including API integrations, automated domain transfer workflows, price comparison engine, and customer management system.

Founded and operated a comprehensive web hosting company offering dedicated servers, virtual private servers (VPS), shared hosting, cPanel hosting, reseller hosting, and domain registration services. Built and managed the entire infrastructure including server provisioning, network configuration, customer billing systems, and 24/7 technical support. Scaled the business to serve thousands of customers with high availability and reliable hosting solutions.

Designed and implemented a novel NFV-based framework for autonomous protocol deployment in SDN networks. Extended the NSwitch architecture to support dynamic network function virtualization, enabling real-time packet processing with programmable action pipelines. Developed a protocol-independent parsing engine that allows controllers to deploy, modify, and chain virtual network functions without switch recompilation. This research resulted in a publication in IEEE Access demonstrating flexible data-plane programmability through software-based NFV integration.

Led the development of a patient-nurse communication platform for Iran Zamin Clinic, consisting of Android and web applications. The system enables nurses to remotely guide patients through their treatment plans, provide medication reminders and instructions, answer health-related questions, and monitor patient progress. Managed a cross-functional team of developers and designers, defined product requirements, coordinated sprint planning, and ensured timely delivery of features.

Infrastructure: Architected and deployed a production-grade private cloud serving 100+ physical servers across 5 data center racks. Virtualization: Built the hypervisor layer using VMware ESXi 7.0 with vCenter Server for centralized management, vSphere HA for high availability, and DRS for dynamic resource scheduling. Orchestration: Integrated OpenNebula as the cloud management platform, enabling multi-tenant self-service provisioning, VM lifecycle management, and resource quota enforcement. Networking: Configured enterprise-grade network infrastructure including VLANs, distributed virtual switches, and link aggregation for redundancy. Storage: Implemented shared storage using NFS and iSCSI over dedicated storage networks with multipath I/O for failover. Monitoring: Deployed Prometheus and Grafana for infrastructure observability and alerting. Operations: Established automated backup policies, disaster recovery procedures, and comprehensive operational documentation.

Developed the backend for Jinaro project using Laravel (PHP), implementing RESTful APIs and database architecture. Managed DevOps responsibilities including CI/CD pipelines, server configuration, and deployment automation. Handled infrastructure provisioning, monitoring, and maintained production environments.