Hi, I’m Sai Krishna! I am a Senior Integration Architect and Technical Lead with 9+ years of experience building high-volume, scalable API platforms, microservices, and distributed systems across Fintech, Travel, and Digital Commerce domains. Over my career, I’ve led engineering teams and integrated 40+ enterprise vendor APIs (Gift Cards, PayPal, Travel, Rewards) using Node.js, TypeScript, MongoDB, and AWS. How I can help you:Tech Professionals: Moving to Tech Lead / Architect roles, System Design & Integration Architecture.Job Seekers: Resume Reviews & Mock Interviews for Backend / Node.js roles.Startups & Product Teams: Technical discovery, Vendor API onboarding strategies, and High-availability backend design.