Senior Software Engineer with 5+ years designing scalable APIs, platform capabilities, and distributed systems in Node.js and TypeScript. Currently driving backend architecture at Xenia, building real-time analytics pipelines and reducing infrastructure costs by 50%+. Proven track record across fintech and B2B SaaS — high-reliability services, event-driven microservices, and enterprise-grade authentication.
Driving backend architecture at Xenia (Remote, US), a B2B SaaS platform for deskless workforces.
Owning system design, data modeling, and the release lifecycle across 5+ backend microservices.
Reduced AWS RDS CPU utilization by 50% through systematic query optimization, index tuning, and connection pooling — saving an estimated $3K/month in infrastructure costs.
Architected real-time analytics pipeline using Change Data Capture (CDC) and ClickHouse, enabling sub-second reporting across 500K+ records and offloading 70% of read traffic from primary databases.
Engineered enterprise Single Sign-On (SSO) using WorkOS with SAML, Google OAuth, and Azure AD — onboarded 10+ enterprise clients with zero authentication-related incidents.
Implemented offline-first mobile sync architecture for field operations in low-connectivity environments, reducing data loss incidents by 90% across 10,000+ deskless workers.
Built event-driven microservices and asynchronous processing infrastructure
in NestJS at AIO (Islamabad, Pakistan).
Designed and implemented event-driven microservices architecture using NestJS and Redis Pub/Sub, improving inter-service communication latency by 60% and handling 10K+ events/minute.
Engineered scalable asynchronous queue processing using BullMQ, increasing task execution reliability to 99.5% and reducing failed job retries by 75% across distributed services.
Optimized real-time data propagation layer using Redis Pub/Sub, enabling consistent sub-100ms message delivery between 8+ microservices.
Built and maintained backend services in an NX Monorepo architecture, reducing code duplication by 40% and improving developer onboarding time by 50%.
Owned core payment infrastructure at KalPay (Lahore, Pakistan), a Shariah-compliant
consumer fintech platform.
Led migration of backend codebase from JavaScript to TypeScript and adopted NestJS framework — reduced runtime errors by 60% and improved developer velocity by 35%.
Migrated primary database from MongoDB to PostgreSQL, improving transactional reliability and enabling complex relational queries that reduced data retrieval time by 45%.
Developed core payment module processing 5,000+ daily transactions, implementing business-critical Shariah-compliant financing logic with 100% regulatory compliance.
Integrated 3+ payment gateways (JazzCash, Easypaisa, bank APIs), enabling seamless multi-channel transactions and increasing successful payment rate by 25%.
Architected an auto-recurring payment system with smart retry logic and automated customer notifications — reduced overdue installments by 40%.
Full-stack development of client-facing software solutions across multiple industry
verticals at Kcube AI (Lahore, Pakistan). Promoted to Lead role within 6 months.
Led full-stack development of client-facing software across 4+ industry verticals, delivering on time with 95% client satisfaction.
Promoted to Lead within 6 months; mentored 3 junior engineers through code reviews and pair programming, reducing onboarding time by 40%.
Established CI/CD deployment pipelines using Azure DevOps, reducing deployment cycle from 3 days to 4 hours and achieving 90%+ successful deployment rate.