Software Engineer (L2)

Join the Twilio Segment CDP engineering team as a Backend Software Engineer. Segment is a best-in-class customer data platform (CDP) designed with engineers, marketers, and product managers in mind. We work at the cutting edge of data and artificial intelligence, such as with our AI-Assisted Suggest Mappings product, and move over 12 trillion API calls a year. This position is needed to build and scale APIs to enable Twilio developers to unlock best-in-class personalized customer experiences through the Twilio Segment CDP products.

As a Software Engineer on the team, you will collaborate closely with product management, architecture, and other engineering teams to design APIs, identify performance bottlenecks, and data models, and drive system-level improvements that enhance both developer velocity and customer experience. You’ll be expected to evaluate and communicate trade-offs between feature velocity, system stability, and technical debt, and help drive architectural decisions that ensure long-term sustainability and performance. We iterate quickly and learn new things daily — all while writing quality code using the latest AI tools.

• Design and build robust, scalable backend systems and APIs across Segment’s data platform.
• 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.
• Troubleshoot and improve system reliability, debugging issues and refining operational tooling and processes.
• Participate in an on-call rotation for our managed services.

• 2+ years experience writing production-grade code in a modern programming language.
• Experience programming in one or more of the following: Go, Java, Python, or similar languages.
• Experience operating large-scale, distributed systems on top of cloud infrastructure such as Amazon Web Services (AWS), including handling production incidents.
• Hands-on experience with container orchestration frameworks (e.g., Kubernetes, EKS, ECS).
• Experience with large scale async processing systems.
• Experience shipping services (products) following CI/CD development paradigm.
• Good grasp of software engineering and how to build a system in a scalable and extensive manner.
• Excellent written and verbal technical communication skills to convey complex technical concepts effectively.
• Comfortable asking questions and taking initiative to solve problems where it is often necessary to “draw the owl”.
• Leverage best-in-class development productivity practices including AI tooling.

• Experience working with event streaming technologies (Kafka, Pulsar, or similar).
• Familiarity with database technologies like PostgreSQL and DynamoDB.
• Exposure to observability tools such as Prometheus, Grafana, or Datadog.
• Experience working in a geographically distributed team.

This role will be remote, but is not eligible to be hired in CA, CT, NJ, NY, PA, WA. No mandatory travel is anticipated.

The estimated pay ranges for this role are as follows (for candidates hired in certain locations):

• Based in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C.: $116,960.00 to $146,200.00.
• Based in New York, New Jersey, Washington State, or California (outside of the San Francisco Bay area): $123,760.00 to $154,700.00.
• Based in the San Francisco Bay area, California: $137,520.00 to $171,900.00.