Principal Machine Learning & Data Engineer

Twilio; Remote; CAD 251,000 - 333,000; Full time

Job summary

A leading communications platform company is seeking a Principal Machine Learning & Data Engineer to architect and operate data platforms. You will design efficient ML systems and ensure process reliability. Ideal candidates will have over 7 years of experience in production data systems and be fluent in Python and one compiled language. The role offers remote work and competitive pay. Join us to contribute to innovative solutions that empower customer experiences globally.

Benefits

Competitive salary

Generous time off

Healthcare benefits

Retirement savings program

Qualifications

• 7+ years of experience building and operating machine-learning systems at scale.
• Deep knowledge of container orchestration and service-mesh networking.
• Exceptional written and verbal communication skills.

Responsibilities

• Architect and evolve ML and data platforms for reliability and efficiency.
• Implement MLOps best practices for daily deployments.
• Lead cross-functional engineering efforts across teams.

Skills

Python

Java

Kubernetes

AWS

SQL

Machine Learning

Education

Bachelor’s or higher in Computer Science, Engineering, Mathematics

Graduate degree focused on machine learning or related

Tools

Spark

Terraform

MLflow

Job description

Principal Machine Learning & Data Engineer

Remote - US

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.

We maintain a remote‑first culture with strong connections and global inclusion.

We use Artificial Intelligence (AI) to help make our hiring process efficient, fair, and transparent, but automation never makes the final call. Every hiring decision is made by real Twilions, ensuring a human touch at every step.

See yourself at Twilio

Join the team as Twilio’s next L5 Machine Learning & Data Engineer to lead the design, build, and operation of the internal ML-and-data platform that powers every customer interaction. You will architect cloud‑native pipelines, model‑serving infrastructure, and developer tooling that allow Twilio’s product teams to iterate rapidly and safely at scale, advancing our mission to unlock the imagination of builders.

Responsibilities

• Architect and evolve Twilio’s end‑to‑end ML and real‑time data platforms for reliability, security, and cost efficiency.
• Design scalable feature stores, streaming and batch pipelines, and low‑latency model‑serving layers on AWS.
• Implement MLOps best practices—automated testing, CI/CD, monitoring, and rollback—for hundreds of daily deployments.
• Own system design reviews, threat modeling, and performance tuning for high‑volume communications workloads.
• Lead cross‑functional engineering efforts, breaking down complex initiatives into executable roadmaps.
• Mentor staff and senior engineers, raising the technical bar through code reviews and pair programming.
• Partner with Product, Security, and Compliance to meet stringent privacy and governance requirements (HIPAA, SOC 2, GDPR).
• Champion a culture of experimentation, data‑driven decision‑making, and continuous improvement.

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.

Required

• Bachelor’s or higher in Computer Science, Engineering, Mathematics, or equivalent practical experience.
• 7+ years building and operating production data or machine‑learning systems at scale.
• Expert fluency in Python and one compiled language (Java, Scala, Go, or C++).
• Hands‑on mastery of distributed data frameworks (Spark/Flink), SQL/NoSQL stores, and streaming platforms (Kafka/Kinesis).
• Demonstrated success designing cloud‑native architectures on AWS, including Terraform‑managed infrastructure.
• Deep knowledge of container orchestration (Kubernetes/EKS), service‑mesh networking, and autoscaling strategies.
• Practical experience implementing MLOps tooling such as MLflow, Kubeflow, SageMaker, or Vertex AI.
• Strong grasp of model‑lifecycle concerns—feature engineering, offline/online parity, A/B testing, drift detection, and retraining.
• Proven ability to lead technical projects end‑to‑end and influence without authority across multiple teams.
• Exceptional written and verbal communication skills, with a bias toward clarity and action.
• Graduate degree focused on machine learning, distributed systems, or applied statistics.
• Contributions to open‑source ML or data infrastructure projects.
• Experience with privacy‑enhancing technologies (differential privacy, homomorphic encryption) or on‑device inference.
• Background in conversational AI, real‑time communications, or large‑language‑model deployment at scale.
• Exposure to compliance‑heavy environments (HIPAA, PCI‑DSS) and secure multi‑tenant design patterns.
• Published research, patents, or conference talks in ML systems or data engineering.

Location

This role will be remote, but is not eligible to be hired in CA, CT, NJ, NY, PA, WA.

Travel

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.

Compensation

*Please note this role is open to candidates outside of California, Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, New York, Vermont, Washington D.C., and Washington State. The information below is provided for candidates hired in those locations only.

• Based in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C.: $184,500 – $230,700.
• Based in New York, New Jersey, Washington State, or California (outside of the San Francisco Bay area): $195,300 – $244,200.
• Based in the San Francisco Bay area, California: $217,000 – $271,300.
• This role may be eligible to participate in Twilio’s equity plan and corporate bonus plan. All roles are generally eligible for the following benefits: health care insurance, 401(k) retirement account, paid sick time, paid personal time off, paid parental leave.

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

Applications for this role are intended to be accepted until May 21st 2026, but may change based on business needs.

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.