Ihsan Ullah Khan

Senior Software Engineer with 7+ years of hands-on experience building high-traffic API platforms, scalable microservices architectures, and enterprise-grade SaaS applications. I architect backend systems in Java and Spring Boot that handle millions of daily requests with 99.9% uptime, and I build polished frontend experiences using Angular and TypeScript. I've led engineering teams of 3-5 developers, driven technical roadmaps, and delivered production-ready software for companies across the US, UK, EU, and Middle East. My work spans multi-tenant SaaS platforms, real-time data pipelines, cloud-native deployments on AWS, and AI-powered automation systems. What I bring to the table: Backend Engineering: Java, Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate, REST API Design, OAuth 2.0, API Versioning, Rate Limiting Frontend Development: Angular, TypeScript, JavaScript, HTML5, CSS3, Single Page Applications (SPA), Responsive Web Design Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, CloudWatch), Docker, CI/CD Pipelines, GitHub Actions, Infrastructure as Code Databases: PostgreSQL, MySQL, Redis, Database Partitioning, Query Optimization, Data Modeling Architecture: Microservices, Event-Driven Architecture, CQRS, Multi-Tenant Systems, High Availability, System Design, Distributed Systems Practices: Agile/Scrum, Test-Driven Development (TDD), Code Reviews, Performance Profiling, Technical Documentation AI & Automation: AI API Integration, Voice AI Systems, Workflow Automation, Intelligent Process Automation Available as Java Developer, Spring Boot Developer, Backend Engineer, Microservices Architect, REST API Developer, AWS Engineer, Full Stack Developer, Tech Lead, Solutions Architect, SaaS, Multi-tenant, OAuth 2.0, PostgreSQL, Angular Developer, AI Integration, Remote.