Senior Backend Engineer Zapier
Spearheaded the design and implementation of scalable backend microservices using a hybrid architecture of Python FastAPI and C# .NET Core to handle millions of daily task automation executions across a distributed SaaS platform. Built resilient RESTful APIs and integrated third-party services using secure OAuth2 workflows, delivering real-time data ingestion and validation with strict performance SLAs and enhanced observability via structured logging and tracing. Automated high-volume developer onboarding processes with Python scripting that reduced ramp-up time by over 60% and eliminated manual configuration steps through API-driven configuration orchestration. Architected an event-driven architecture using AWS Lambda and S3 pipelines for asynchronous task orchestration, reducing infrastructure costs and enabling seamless horizontal scalability with zero downtime. Collaborated closely with cross-functional teams and offshore contractors to integrate hybrid CI/CD pipelines, driving full automation for builds, tests, security checks, and deployments using GitHub Actions and Azure DevOps.