• Helped scale, re-architect and refactor Tessian's NodeJS/TypeScript SMTP email security gateway as it grew from thousands of users to hundred of thousands helped by Sequoia backing.

• Personally implemented business-critical features such as TNEF RTF support and viral Tessian signature and collaborated with small groups to implement other business-critical features such as message tracing.

• Worked on gateway-related asynchronous Python microservices and on Ansible playbooks to manage our AWS-based architecture.