Principal Software Engineer

Twilio is a company shaping the future of communications by delivering innovative solutions to businesses and empowering developers worldwide. The Principal Software Engineer will serve as a hands-on technical expert within the Product organization, collaborating with various teams to drive growth and demonstrate the power of Twilio's platform through code and customer engagement.

Responsibilities:

• Design and deliver high-quality, solution-oriented code, including quickstart repos, “Hello World” POCs, and demos, that serve as inspiration and a model for builders to adopt
• Be the high-bandwidth bridge between the market and the roadmap. You’ll translate raw customer friction and "agentic" trends into actionable product strategy, ensuring we build what builders actually need
• Build brand trust and authority by delivering high-impact conference talks, producing technical deep-dives and blogs, and contributing to open source projects that demonstrate the product's value to the broader developer ecosystem
• Actively partner with PMs, GTM, and Engineering teams to provide actionable feedback on technical and product direction, user experience, pain points, and systemic challenges. Help assemble complex Twilio products into cohesive solution blueprints
• Translate complex technical concepts for diverse audiences including product managers, executives, non-technical stakeholders, and community members
• Work very closely with Solution Engineers, Developer Evangelists, and Customers to help them understand how to assemble Twilio products for agentic and non-agentic applications

Requirements:

• 7+ years architecting and operating high-scale cloud systems; expert in building resilient, distributed architectures
• Deep production experience in JS/TS and Python using AI-assisted development, setting the bar for modern, type-safe, and AI-integrated codebases
• Proven mastery of RESTful design, setting the global standard for 'best-in-class' Developer Experience
• Ability to synthesize complex market friction into formal proposals that pivot engineering priorities
• A recognized authority with a portfolio of high-impact open source, technical keynotes, or publications
• A 'Builder at Heart' capable of shipping the foundational JS/TS and Python reference code that inspires thousands
• Active in Cloud or AI open-source communities with documented projects, contributions, and thought leadership
• Documented implementation of LLMs, RAG, and agentic frameworks into production-ready developer tools