Senior Software Engineer, Twilio

• Twilio values diverse experiences from all kinds of industries, and we encourage everyone who meets the required qualifications to apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Twilio. We are always looking for people who will bring something new to the table!
• A Master’s or Bachelor's degree and 5 + years of experience in software engineering, with a focus on backend or infrastructure systems or equivalent combination of years of experience
• Expertise in Distributed Systems: A deep understanding of consistency models, partition tolerance, and the challenges of scaling stateful services
• Core Languages: Proficiency in Java, Spring, Dropwizard and a strong grasp of building RESTful APIs at scale
• Database Fundamentals: Practical experience working with and tuning PostgreSQL, Aurora or similar relational databases
• Cloud Infrastructure: Familiarity with deploying and managing large-scale services on AWS or GCP
• Operational Excellence: Comfortable operating in an agile environment with a "you build it, you run it" mentality

Desirable

• The role sits in the Twilio Voice Organization, Postflight Team
• The team is responsible for managing the distributed systems and APIs responsible for Twilio Call lifecycle
• This position is needed to build and evolve next-generation distributed systems that continue to empower our customers through high-performance APIs
• You will be tasked with solving the complex challenges inherent in supporting the massive scale of Twilio Voice, ensuring our infrastructure remains robust as we expand our capabilities
• As a Senior Software Engineer, you will focus on the intersection of large-scale API development and advanced data systems
• You will work on designing and implementing low-latency, highly scalable architectures that leverage modern database technologies to provide customers with seamless access to large-scale data
• Architect and implement next-generation distributed systems capable of handling the immense throughput and concurrency requirements of Twilio Voice
• Design low-latency, high-scale APIs that empower customers with real-time access to their data and communications infrastructure
• Optimize and manage distributed database environments, ensuring high availability and performance across high-volume data stores
• Own the full development lifecycle, from initial system design and prototyping to the continuous operation of 24x7 production services
• Collaborate across engineering teams to solve "hard" distributed systems problems, ensuring our API layer is both resilient and developer-friendly

• Applications for this role are intended to be accepted until 04/20/2026, but may change based on business needs