• Design, implement, and maintain scalable, high-availability cloud infrastructure for Twilio’s microservices. • Operate and maintain highly available services handling billions of weekly requests. • Manage Infrastructure as Code (IaC) using tools like Terraform, ensuring operational best practices. • Build and optimize CI/CD pipelines to support continuous integration and deployment. • Monitor, troubleshoot, and ensure uptime of services through on-call rotations and incident response. • Collaborate with cross-functional teams in agile ceremonies to drive technical excellence. • Continuously improve cloud-based services, focusing on reliability, performance, and scalability. • Research and improve the design and implementation of Twilio’s API infrastructure regularly.

- Architect, develop and maintain full stack applications using TypeScript, PostgreSQL and React - Collaborate with product managers, designers, and engineers to define, scope, and implement new features - Own key projects from technical design through implementation and deployment - Write clean, scalable and testable code with an emphasis on performance and reliability - Participate in code reviews, technical discussions and system design sessions - Contribute to Devops and infrastructure work (bonus if you're comfortable with Terraform) - Mentor junior developers and share best practices across the team

• Own end-to-end product slices of Horizon—from customer problem to wireframe to production service, including the user-facing UI/UX. You define what "done" means and you're accountable for it. • Partner directly with the CEO, VP of Product, and early customers to turn field signal into working software at pace. • Shape technical direction and architectural decisions for Horizon. Mentor product engineers on your team on systems thinking, reliability patterns, and shipping discipline. • Develop deep product knowledge of the AI/LLM tooling space, MCP ecosystem, and how Horizon fits into emerging patterns. Stay sharp on market trends and help us position ourselves accordingly. • Establish and refine our approach to operational excellence: sustainable on-call practices, incident response patterns, observability standards that scale. • Participate in on-call/incident response and set the standard for how we handle production issues.

• Perform tasks related to the development, deployment and monitoring of systems, assessing received functional and non-functional requirements to develop or maintain system features, monitoring deployments and performance, and applying software development best practices. • Develop and maintain web applications using Java and modern frameworks. • Design and integrate APIs for communication between systems. • Ensure application security and performance. • Collaborate with designers and analysts to define technical requirements. • Follow the software development best practices adopted by the company. • Participate in code reviews and ensure software quality. • Implement automated tests to ensure system stability. • Keep up with technology trends and propose improvements. • Work in a team using agile methodologies such as Scrum or Kanban.