Zaid Memon

Senior DevOps Engineer

Unikrew Solutions (Private) Limited • Período integral

Jun 2025 - Present • 11 mos

• Improved the reliability of Unikrew’s facial liveness detection service, which we deployed at NADRA for national level identity and verification use cases, including the Pak Identity app and the e Sahulat app. I ran large scale load, and stress tests across our production AWS environment and NADRA’s on premise setup, identified key concurrency bottlenecks, tuned the service stack, optimized NUMA settings on the underlying hypervisor, and validated the improvements through repeatable benchmarks so the platform could scale smoothly for nationwide traffic. • Led a cross cloud cost optimization exercise spanning AWS, Azure, and MongoDB Atlas. I audited resource usage, cleaned up unused services, right sized compute, storage and optimized Atlas configuration including shard sizing, index usage, backup retention, and network egress. The combined changes cut the monthly bill by about 50 percent within two months. • Wrote an automated deployment tool for on premise installs that handles package downloads, container image retrieval, cluster setup, and product deployment. The tool enforces consistent configuration, removes manual steps that used to fail, and reduced the average deployment time from multiple days to under one hour. • Set up a complete observability stack using Grafana Alloy, Prometheus, Loki, and Linkerd. I created production ready dashboards, meaningful SLO-based alerts, and service level views the team could use immediately for troubleshooting. This improved visibility across the platform and reduced the time needed to identify and resolve issues. • Engaged in day to day production troubleshooting and worked daily with enterprise clients on escalations, root cause analysis, and mitigation plans, ensuring follow through until service levels were fully restored.

Cloud Engineer

Wavetec (Private) Limited • Período integral

May 2023 - Jun 2025 • 2 yrs 1 mo

• Led the migration of Wavetec's queuing and appointment architecture to Kubernetes, containerizing over 30 applications built with various technologies such as Node.js, Java, and Go, significantly improving scalability and reducing deployment time by 40%. • Designed and implemented a high-availability (HA) strategy, ensuring 99.99% uptime and reducing potential downtime by 50%. Collaborated with developers to enhance application resilience by configuring RabbitMQ in HA cluster mode and implementing high availability for MySQL and SQL Server using HA Availability Groups. • Implemented multi-AZ and multi-region disaster recovery strategies for major clients, achieving a Recovery Time Objective (RTO) of less than 15 minutes and a Recovery Point Objective (RPO) of under 5 minute. • Conducted a Deloitte audit to achieve SOC 2 Type II compliance for the first time at Wavetec, collecting and analyzing over 150 pieces of evidence across multiple departments to meet security and regulatory standards. • Configured and maintained AWS services (EC2, RDS, S3, Lambda, EventBridge, EKS, ECS, VPC, Systems Manager, CloudWatch), improving system performance by 25% and reducing infrastructure costs by 20% through efficient resource utilization. • Audited and improved security configurations for 200+ cloud workloads, enforcing IAM role policies, security group rules, and parameter store secrets to ensure zero critical findings during security audits. • Developed Helm charts for the deployment of over 30 microservices, streamlining updates and global rollouts, and optimizing costs using Kubecost, reducing cloud infrastructure expenses by 20%. • Developed an automated configuration and deployment solution for Wavetec's Customer Support Team (50+ members) on Windows Server, reducing deployment time from 2 weeks to 2 hours and decreasing manual intervention by 60%. The solution was built using a React frontend, a Python (Flask) backend, and Celery for asynchronous task processing.