Because you belong at Twilio.

The Who, What, Why and Where

Twilio seeks a Senior Machine Learning Engineer to be a key leader in defining a new product offering at Twilio in the customer engagement space. The person in this role will be critical in shaping Twilio’s data and intelligence strategy, which will empower our customers to create highly personalized communications and experiences for their contacts. Come be part of a team that's building a set of ML-driven APIs that deliver intelligent audience and personalization recommendations.

Who?

You have:

• Personal traits: Curious, humble, team player
• Professionally: Passionate, customer-obsessed, gets things done, highly collaborative, excellent communicator, and very comfortable with rapid change and uncertainty
• You have hands on experience developing, deploying and monitoring a large scale machine learning model in production
• Ph.D. or MS in Computer Science, Statistics, or related field
• 4+ years of applied ML experience in statistical and mathematical modeling such as supervised and unsupervised machine learning, deep learning, and/or reinforcement learning
• You are familiar with concepts related to testing and maintaining models in production such as A/B testing, retraining, monitoring model performance
• You’ve explored modern data storage, messaging, and processing tools (Kafka, Spark, Hadoop, Cassandra, etc.) and demonstrated experience designing and coding in big-data components such as DynamoDB or similar
• You have a deep understanding of frameworks like - PyTorch, TensorFlow, or Keras, why and how these frameworks do what they do
• Proficiency in Python is preferred. We will also consider strong quantitative candidates with a background in other programming languages
• Experience working in an agile team environment
• Big plus: Experience in AWS cloud computing

What?

You live the Twilio Magic values:

• EMPOWER OTHERS: Be part of a small, high-impact and multi-talented engineering team. Show strong engagement in the team setting.
• WEAR THE  CUSTOMER’S SHOES: Passion for and demonstrated track record of executing product opportunities deeply grounded in customer needs.
• DRAW THE OWL: Self-starter who can see the big picture and prioritize work to make the largest impact.
• BE BOLD: Help us take one of the world’s most extensive communication data sets and transform it into leading-edge AI applications and products that solve meaningful customer problems.
• BE INCLUSIVE: Collaborating and brainstorming product ideas with product managers, data scientists and engineers.
• DON’T SETTLE: Experienced working at a massive scale with distributed, scalable systems, including making tradeoffs for consistency/availability.
• NO SHENANIGANS: Experience successfully applying machine learning to real-world problems
• OTHER: Some quarterly travel required to collaborate with teams in SF, Denver, London.

Why?

Today, Twilio powers the delivery of billions of the world’s communications. Increasingly, we’re hearing from our B2C customers that they’re struggling to harness the massive amounts of valuable data they generate, much of which stems from the communications we help them send. We seek to uncover how Twilio can help customers utilize their valuable data to create unique, individualized experiences that their competitors can’t replicate. We want to help them become more proactive (outcome-driven) than reactive (event-driven) in their customer engagements. We are a new initiative and team at Twilio that will function much like an internal start-up. If you want to shape the future of B2C Customer Engagement and Twilio, this project is for you!

Twilio is a company that is empowering the world’s developers with modern communication in order to build better applications. Twilio is truly unique; we are a company committed to your growth, your learning, your development, and your entire employee experience. We only win when our employees succeed and we're dedicated to helping you develop your strengths. We have a cultural foundation built on diversity, inclusion, and innovation and we want you and your ideas to thrive at Twilio.

Where?

This position will be located in our beautiful office at Paseo de la Castellana 77 in Madrid. You will enjoy our incredible perks: catered meals - lunches and dinner during All Hands, New Hire mingle breakfast, snacks, fresh fruit, frequent events, ergonomic desks, monthly All Hands and the flexibility to work from home when needed (we have a 40-hour work week, but you can start/end your days earlier/later and you can manage your own time).

You will also be part of a company that believes in small teams for maximum impact; that strives to balance work and home life; that understands that this is a marathon, not a sprint; that continuously and purposefully builds an inclusive culture where everyone is able to do and be the best version of themselves. We seek people who naturally demonstrate our values, who are challenged by problems, empower others to thrive, and can draw the owl and not be beholden to one playbook.

About us:

Millions of developers around the world have used Twilio to unlock the magic of communications to improve any human experience. Twilio has democratized communications channels like voice, text, chat, video and email by virtualizing the world’s communications infrastructure through APIs that are simple enough for any developer to use, yet robust enough to power the world’s most demanding applications. By making communications a part of every software developer’s toolkit, Twilio is enabling innovators across every industry — from emerging leaders to the world’s largest organizations — to reinvent how companies engage with their customers.