Software Engineer (L3)

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! . See yourself at Twilio Join the team as Twilio’s next Senior Software Engineer (P3) About the job This position is needed to build new features and capabilities in the Twilio Segment team. As a Senior Software Engineer on this team, you’ll build and scale systems that process several hundred thousands of data points per second. Helping our customers unlock value of their data from external systems and activate it to various destinations via Segment capabilities. You will work on high-scale ingestion and data processing systems. We iterate quickly on these products and features and learn new things daily — all while writing quality code. We work closely with product and design and solve some of the toughest engineering problems to unlock new possibilities for our customers. If you get excited by building products with high customer impact — this is the place for you. Responsibilities In this role, you’ll: Design and deliver robust, high-scale routing experiences for Data Pipelines for Twilio Segment. Operate always-available, complex distributed systems in cloud environments. Collaborate cross-functionally with design, product, and other engineers to define solutions that balance usability, performance, and long-term architecture. Communicate technical decisions clearly - articulating trade-offs, customer impact, and team alignment. Mentor junior engineers and contribute to a culture of technical excellence and continuous learning. Participate in an on-call rotation for our managed services. Troubleshoot and improve system reliability, debugging issues and refining operational tooling and processes. Qualifications 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! *Required: Bachelor’s or Master’s degree in Computer Science, Engineering, or related field. Hands-on experience with high-scale messaging/streaming systems and processing engines (several thousand events/sec). 5-7 years experience writing production-grade code in a modern programming language. Proficient programming experience in Go, Java, Python or similar object-oriented languages. Experience operating large-scale, distributed systems on top of cloud infrastructure. Experience shipping services (products) following CI/CD development paradigm. Good grasp of software engineering and how to build a system in scalable and extensive manner; Leverage best-in-class development productivity practices including AI tooling. Excellent communication, problem-solving, and operational excellence skills. Desired: Have hands-on experience with container orchestration frameworks (e.g. Kubernetes, EKS, ECS) Technical depth in distributed systems, high-scale ingestion, and cloud-native architecture. Proficiency with datastores, distributed caching, and container technologies (Docker/Kubernetes). Experience with modern CI/CD pipelines and observability tools (Datadog, Grafana, Prometheus). Familiarity with AI/ML technologies. Ex