Syed Ali Zafar

• Developed and maintained microservices using .NET Core to improve scalability and performance.
• Led integration of Single Sign-On (SSO) services to enhance authentication efficiency.
• Implemented business onboarding services to streamline client onboarding and reduce time-to-launch.
• Architected and developed a webhook service handling 10M requests per day with fallbacks for 100% uptime.

• Developed and architected backend APIs establishing core application functionality.
• Led end-to-end implementation from data extraction with Scrapy to Elasticsearch integration, enhancing search capabilities.
• Served as acting team lead during critical periods to drive issue resolution and maintain momentum.
• Managed deployments via GitHub Actions, maintained EC2 instances, and utilized AWS ECS for background jobs.

• Led the frontend engineering team to implement complex features while maintaining code quality and best practices.
• Worked with the Elastic stack alongside SQL Server and RabbitMQ to deliver complex product features.
• Handled on-premises deployments for the application's core features.

• Built complex real-time applications requiring in-depth DOM knowledge, similar to Google Docs, Sheets, and Slides.
• Implemented Clean Architecture for backend APIs and created microservices integrated with the main application.
• Contributed features to React Native mobile applications.
• Leveraged AWS services including ECR, CloudFormation, and S3 for deployment and management.
• Handled server deployments and operations using Linux and Bitbucket Actions.

Built and owned production SaaS platforms, backend systems, integrations and automation workflows for international clients. Delivered solutions using Next.js, TypeScript, Python, PostgreSQL and AWS, covering authentication, payments, background workers, APIs, AI integrations, deployment and production support.