Principal, Software Engineer (L5)

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 Principal Software Engineer in the Efficiency Engineering team in Services Operations.

About the job

This position is needed to directly influence the development and deployment of our solutions, improving operational efficiency and enhancing customer experiences. This role is pivotal in guaranteeing that Efficiency Engineering is equipped with the expert talents required to consistently deliver cutting-edge software and data science solutions.

Joining this team offers the opportunity to work on cutting-edge software and AI/ML projects, contributing to innovative solutions that drive efficiency and customer success at a global scale. Success means delivering high-quality products on time, effectively collaborating with cross-functional teams, and significantly contributing to Twilio’s strategic goals.

Responsibilities

In this role, you’ll:

• Lead the design and development of our software infrastructure, driving technical vision and strategy to ensure scalability, reliability, and performance.
• Serve as the subject matter expert in distributed systems, data technologies, with strong software engineering skills.
• Architect and implement scalable and efficient software and data pipelines, storage solutions, and processing frameworks using state-of-the-art technologies.
• Drive technical innovation and research to stay at the forefront of emerging data technologies and best practices.
• Mentor and coach a team of talented engineers, fostering a culture of technical excellence, collaboration, and continuous learning.
• Collaborate closely with cross-functional teams to understand business requirements and translate them into scalable and efficient technical solutions.
• Ensure data quality, integrity, and security throughout the data lifecycle, adhering to industry best practices and compliance standards.

Qualifications

Not all applicants will have skills that match a job description exactly. Twilio values diverse experiences in other industries, and we encourage everyone who meets the required qualifications to apply. While having “desired” qualifications make for a strong candidate, we encourage applicants with alternative experiences to also 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 a related field.
• 10+ years of experience in data engineering, software development, or a related field, with at least 5 years in a technical leadership role.
• Experience with full-stack development using modern programming languages such as Typescript, Java, Go, Python etc..
• Experience with standard ML programming languages such as Python and libraries such as Pandas, NumPy, SciKit-learn, Tensorflow, Keras and AWS stack (Sagemaker, Step Functions, Kendra, Open Search, Batch etc.) is a plus.
• Experience developing production-quality LLM applications and using modern agent frameworks such as Langchain, Langgraph, Llamaindex, LangSmith, LangFuse, CrewAI, and/or others is a plus.
• Proven track record of architecting and delivering complex data projects at scale, with a deep understanding of data infrastructure and distributed systems.
• Experience in developing enterprise-grade AI products, and platform development using cloud technologies, Kubernetes, containerization and infrastructure-as-code such as Terraform, CDK etc.
• Expertise in big data technologies such as Hadoop, Spark, Kafka, and cloud-based data services (AWS/GCP/Azure).
• Strong understanding of data modeling, data warehousing, and ETL processes, with experience designing and optimizing data pipelines.
• Excellent communication and collaboration skills, with the ability to influence technical decisions and drive alignment across teams.
• Strong leadership skills, with a track record of mentoring and developing high-performing engineering teams.
• Demonstrated ability to thrive in a fast-paced, dynamic environment and deliver results under tight timelines.

Desired:

• Strong experience with AWS technologies and Kubernetes
• Excellent written and verbal communication skills.

Location

This role will be remote, and based in Canada.

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 competitive pay, generous time off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location.

The estimated pay ranges for this role are as follows:

• Based in British Columbia. : $189,900.00 - $237,400.00

The successful candidate’s starting salary will be determined based on permissible, non-discriminatory factors such as skills, experience, and geographic location.

Twilio thinks big. Do you?

We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values — something we call Twilio Magic. Additionally, we empower employees to build positive change in their communities by supporting their volunteering and donation efforts.

So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now! If this role isn't what you're looking for, please consider other open positions.

Twilio is proud to be an equal opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Additionally, Twilio participates in the E-Verify program in certain locations, as required by law.