About

I'm Hassan — a Senior Software Engineer (AI-Augmented) at Xenia, where I drive backend architecture for a B2B SaaS platform serving deskless workforces. I design scalable APIs and distributed systems in Node.js and TypeScript, with 5+ years across fintech and B2B SaaS.

What I'm Building Now

At Xenia I lead end-to-end ownership of backend systems — from architecture and data modeling through CI/CD, observability, and on-call. Recent work:

  • Real-time analytics on CDC + ClickHouse, offloading 70% of read traffic from primary databases.
  • Enterprise SSO via WorkOS — SAML, Google OAuth, Azure AD — onboarded 10+ enterprise clients without authentication incidents.
  • Offline-first mobile sync for field operations in low-connectivity environments, cutting data loss by 90% across 10,000+ deskless workers.
  • AWS infrastructure tuning — reduced RDS CPU 50%, saving ~$3K/month.

AI-Native Engineering

I work in an AI-augmented engineering style. I run Claude Code with custom skills, plugins, and parallel agents. I've established AI-native service documentation across our repositories that cuts new-engineer onboarding by 70% and uses these workflows to push sprint throughput 3×.

I write about this on Dev.to and Medium.

Background

Before Xenia, I built event-driven microservices at AIO (NestJS, Redis Pub/Sub, BullMQ), shipped Shariah-compliant payment infrastructure at KalPay Financials processing 5,000+ daily transactions, and grew from engineer to lead at Kcube AI.

I studied Computer Science at Information Technology University (ITU) in Lahore, where I'm based now and work remotely with US-based teams.

How I Work

  • End-to-end ownership. I prefer being responsible for the whole lifecycle — design, build, deploy, operate, iterate.
  • Boring tech, sharp execution. Postgres with the right indexes beats a clever distributed system most of the time.
  • Cost-aware. Infrastructure spend is real. Tuning queries, right-sizing services, and choosing the right tool can quietly save tens of thousands a year.
  • AI-native. Claude Code, Cursor, MCP, agentic patterns — daily drivers, not experiments.

Get in Touch

If you think I can help with your project, or want to talk shop on backend architecture, fintech, distributed systems, or AI-native engineering — reach out.