Software Engineer (L3) Email

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• 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!
• Experience: 4+ years of professional software engineering experience building and operating resilient backend services at scale.
• Modern Development Workflow: Practical experience leveraging AI-assisted development tools (such as Claude Code) to accelerate code generation, automate testing, and streamline debugging workflows.
• Language Proficiency: Strong, hands-on production experience writing clean, idiomatic, and highly concurrent Go (Golang), Java or Python.
• Cloud Infrastructure: Solid experience deploying and managing production workloads in cloud environments—ideally with deep exposure to AWS core services (such as EC2, S3, Aurora, or DynamoDB) AND Microsoft Azure equivalents (such as Virtual Machines, Blob Storage, Azure SQL, or Cosmos DB).
• Infrastructure as Code: Proficiency with Terraform for provision-level automation and maintaining environment parity.
• Distributed Systems: Strong theoretical and practical understanding of distributed datastores, caching layers, and asynchronous event streaming (e.g., Kafka or similar queuing ecosystems).
• Systems Mindset: Strong foundational background in computer science fundamentals, data structures, and building self-healing cloud architectures.
• Prior experience managing high-throughput applications running inside containerized infrastructure (Docker, Kubernetes).
• Familiarity with database migration pathways (e.g., transitioning traditional on-prem/relational datastores to managed instances like AWS Aurora).
• Experience implementing OpenTelemetry or distributed tracing systems across decoupled microservice platforms.
• Direct experience handling constraints related to network topology, proxy layers, or mail transfer agent (MTA) protocols.