Senior 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.

See yourself at Twilio

Join the team as our next Senior Backend Engineer on Twilio’s Segment Engineering teams

About the job

As a Senior Backend Engineer on the Twilio Engineering team, you’ll help us build and scale systems that support the leading Customer Data Platform (CDP) in a rapidly evolving and competitive market. Our products process billions of data points per hour, enabling customers to orchestrate and activate their data efficiently and flexibly.

Twilio CDP provides a best-in-class data infrastructure and orchestration platform that supports a wide range of customer use cases, from identity resolution to real-time audience segmentation. As an engineer, you will be responsible for designing, developing, and optimizing backend services that power data pipelines, APIs, and event-driven architectures.

If you thrive in fast-moving environments, enjoy working on scalable systems, and are passionate about building high-performance backend services, this role is for you.

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Responsibilities

In this role, you’ll:

• Design, develop, and maintain backend services that power Twilio Segment’s high scale data platform.
• Build scalable and high-performance APIs and data pipelines to support customer data orchestration.
• Improve the reliability, scalability, and efficiency of Segment’s backend systems.
• Collaborate with cross-functional teams including product, design, and infrastructure to deliver customer-focused solutions.
• Drive best practices in software engineering, including code reviews, testing, and deployment processes.
• Ensure high operational excellence by monitoring, troubleshooting, and maintaining always-on cloud services.
• Contribute to architectural discussions and technical roadmaps that align with Twilio’s CXaaS vision and Segment’s strategic initiatives.

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:

• 4+ years of experience writing production-grade backend code in a modern programming language (e.g., Golang, Python, Java, Scala, or similar).
• Strong fundamentals in distributed systems, event-driven architectures, and database design.
• Experience working with AWS cloud-based infrastructure.
• Well-versed in designing and building high-scale, low-latency services/APIs.
• Solid grasp of Linux systems and networking concepts.
• Strong debugging and troubleshooting skills for complex distributed applications.
• Effective communication skills and ability to collaborate in a fast-paced team environment.
• Comfortable with ambiguity and problem-solving in a rapidly growing company. 

Desired:

• Experience working with event streaming technologies (Kafka, SQS, or similar).
• Experience with database technologies like DynamoDB, PostgreSQL, or Databricks SQL.
• Familiarity with containerization and orchestration tools (Docker, Kubernetes).
• Background in building multi-tenant SaaS platforms at scale.
• Experience working with observability tools such as Prometheus, Grafana, or Datadog.
• Experience working in a geographically distributed team

 

Location

This role will be remote and based in the U.S.

 

Travel 

We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings.

 

What We Offer

Working at Twilio offers many benefits, including co