
Usman
Backend and DevOps Engineer, NodeJS, Kubernetes
Habilidades

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Porfolio
Experiencia laboral
DevOps and Backend Engineer
Tilism Technologies Private Limited • Tiempo completo
Feb 2023 - Present • 3 yrs 8 mos
Backend developer at a CPaaS company that brings messaging channels such as SMS, WhatsApp and social platforms into one unified portal. - Rebuilt the real-time engine of the TelloCast CRM using Socket.IO, turning a slow system into a fast, scalable platform - Delivered the agent portal, client SDK, ticketing and notification service on a microservice architecture - Lead the SDK team and stay hands-on across the messaging pipeline, from chatbot integration to live agent support - Supported .NET SMS gateway services used by major Pakistani banks, including stored procedures and database-level fixes - Built SMS and WhatsApp promotional campaign flows for national energy and lubricant brands - Deploy and run services on Kubernetes with GitOps (ArgoCD)
DevOps and Backend Engineer
Beleef • Tiempo completo
Nov 2025 - Apr 2026 • 5 mos
Remote contract role designing and running production cloud infrastructure and backend services. - Designed and managed scalable AWS infrastructure using EC2, Load Balancers, Elastic Beanstalk, S3 and Lambda - Architected a microservices backend with Redis for asynchronous processing and system decoupling - Implemented secure cloud networking with VPC peering and private access controls, removing all public exposure of servers and databases - Set up environments to scale with demand and stay stable in production
Backend Developer
Chaynz Tech • Tiempo completo
Sep 2021 - Oct 2023 • 2 yrs 1 mo
Built and maintained backend systems for a range of client products, first full time and later part time. - Built backends for lab test management, product catalogs, crowdfunding platforms and finance job portals, with secure transactions and smooth user flows - Developed a backend for automated attendance tracking with facial recognition, giving administrators real-time insights - Provided ongoing product support, fixes and quality maintenance - Transferred knowledge to and onboarded a new team member for a smooth handover