Phakhruddin
(Deen) Abdullah
Senior SRE · CloudOps · DevOps · Platform Engineer
Senior Production Engineer with 20+ years designing, owning, and debugging large-scale distributed backend services in live production environments.
Building Reliable Systems
at Massive Scale
I am a Senior Production Engineer with over two decades of experience designing, owning, and debugging large-scale distributed backend services in live production environments. My career spans mission-critical systems at Amazon (Project Kuiper), Intuit (TurboTax), and Fortune 500 enterprises including Fidelity National Information Services (FNIS), GAP, ING, IBM, Washington Mutual, Aetna, GE, AT&T, and the Chicago Board Options Exchange.
I build and operate high-traffic infrastructure and control-plane systems that power real-time workflows under strict reliability and compliance constraints. My deep Linux and networking expertise comes with a track record of handling on-call escalations, performing rigorous capacity planning, and eliminating systemic failure modes through durable architectural redesign.
Infrastructure at Scale
Designed and operated high-traffic infrastructure and control-plane systems powering real-time workflows under strict reliability constraints.
Cloud Architecture
Multi-cloud expertise across AWS, Azure, and GCP with deep specialization in IAM, EKS, Terraform, and Infrastructure-as-Code.
Production-Grade Code
Write Python services and infrastructure components engineered for concurrency, scale, and failure isolation.
Observability & SRE
Built enterprise observability platforms processing 1.4PB+ daily data, supporting thousands of users and millions of clients.
Career Pipeline
From Sun Microsystems to Amazon's satellite program — a continuous pipeline of building, scaling, and securing mission-critical infrastructure.
Systems Development Engineer
- Architect and operate secure, multi-account AWS infrastructure across EC2, CloudFormation, CDK, AppStream, and GovCloud for satellite manufacturing and launch workflows.
- Designed IAM-first access models and cross-partition identity integrations between Commercial and GovCloud environments under ITAR-regulated compliance scope.
- Built CDK-based platform primitives and automation pipelines to standardize environment provisioning and reduce configuration drift.
- Engineered proactive monitoring, scaling, and self-healing workflows using CloudWatch, Lambda, and event-driven automation.
Staff DevOps Engineer — Observability
- Led large-scale AWS modernization and cost optimization, reducing infrastructure spend by 80% through SmartStore (S3), EC2 right-sizing, and storage re-architecture.
- Owned end-to-end service reliability for distributed ingestion systems processing 1.4PB+ daily data with primary on-call responsibility.
- Designed Python-based control-plane services for anomaly detection, automated remediation, and failover orchestration.
- Led live production debugging of cross-service outages, tracing request paths across load balancers, compute nodes, and storage tiers.
Senior Systems Engineer — High Availability
- Owned core service reliability architecture for TurboTax SaaS, scaling to absorb 50x+ seasonal traffic spikes with millions of concurrent sessions.
- Led high-severity incident response during peak events, driving cross-stack root cause analysis across F5 load balancing, VMware ESX, and SAN/NAS storage.
- Engineered multi-datacenter active/active replication topologies with deterministic failover behavior meeting strict RTO/RPO targets.
Professional Services Consultant
- Served as Subject Matter Expert for Veritas Cluster Server and software storage on Linux.
- Architected high-availability solutions for Oracle RAC in enterprise environments.
- Developed automation for provisioning and cluster management of Linux and Unix servers.
Veritas/Symantec Professional Services Consultant
- Architected multi-node Oracle RAC clusters using Veritas Storage Foundation for mission-critical financial and trading systems.
- Designed multi-datacenter replication and deterministic failover topologies for high-throughput, low-latency environments.
- Performed deep storage, I/O, and cluster-layer performance tuning across Sparc and x86 systems.
Professional Services Consultant
- Led large-scale Solaris and Unix infrastructure modernization projects across GE, GAP, AT&T.
- Designed virtualization solutions using Solaris Zones and engineered automated provisioning frameworks.
- Implemented high-availability architectures for mission-critical financial and telecom systems.
Technical Arsenal
A comprehensive toolkit built over 20+ years of hands-on production engineering, from bare-metal Solaris to Kubernetes-orchestrated cloud-native platforms.
Cloud & Platform Engineering
Automation & DevOps
Observability & Monitoring
Systems & Storage
Verified Credentials
Multiple certifications across major cloud platforms, Kubernetes ecosystems, and security domains — validating deep expertise in production infrastructure.
Amazon Web Services
Google Cloud
Microsoft Azure
Oracle Cloud
Kubernetes
Security & Compliance
Let's Build Something
Reliable Together
Whether you need a seasoned SRE to architect your cloud infrastructure, scale your observability platform, or lead your DevOps transformation — I'm ready to bring 20+ years of production engineering expertise to your team.