Klaviyo

Klaviyo

Senior Software Engineer - Flows AI

Boston, MA · Senior

Sponsorship not specified$148k-$222kDetected 20 days ago
TypeScriptPythonReactVue.jsAngularDjangoBackend DevelopmentFull-Stack DevelopmentRedisAWSKubernetesCI/CDGraphQLRESTKafkaRabbitMQMachine LearningAgentic AIOnboardingCustomer Success

About the role

  • We've built the infrastructure and application that serve as the interface between businesses and consumers.
  • We now have over 167,000 customers, billions of consumer profiles, and hundreds of billions of customer messages and follow-on conversion data.
  • This is a full-stack role with opportunities to shape architecture, async processing pipelines, and distributed systems.

Responsibilities

  • Visit klaviyo.com/careers to see how we empower creators to own their own destiny.
  • You'll help build the backend systems and product experiences behind our AI agent capabilities in Klaviyo's Flows product.
  • Drive the technical design and implementation of customer-facing AI capabilities within Klaviyo Flows.
  • Build reliable, scalable full-stack systems, including backend services, async processing pipelines, and product experiences that help marketers create and improve automated journeys.
  • Partner proactively with product, design, and engineering teammates to shape priorities and deliver measurable customer value.
  • Own projects end to end, from working through ambiguity and refining requirements to shipping and operating production features.

Requirements

  • 5-7 years of professional experience in full-stack software engineering.
  • Bring experience shipping AI-powered product capabilities or other complex, ambiguous product initiatives in production.
  • Experience creating human and automated evals to ensure high AI model quality.
  • Hands-on experience with one or more front end technologies (React, TypeScript, Angular, Vue, etc.)
  • Experience with Python / Django or similarly typed languages.
  • Experience with designing and managing scalable databases.
  • Experience with asynchronous processing and distributed task queues (Celery, Kafka, SQS, RabbitMQ, Redis).
  • Experience with cloud-native architectures (AWS) and container orchestration (Kubernetes)
  • Hands-on experience with building REST APIs, GraphQL, and other middleware development tools.
  • Able to operate with a high degree of autonomy, handle ambiguity, and thrive in a fast-moving, startup-like environment.

Nice to have

  • Experience with workflow builders, automation products, or journey-orchestration style systems
  • Massachusetts Applicants:
  • It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment.
  • An employer who violates this law shall be subject to criminal penalties and civil liability.
  • Travel is coordinated in advance.
  • Get to Know Klaviyo
  • We're Klaviyo (pronounced clay-vee-oh).
  • AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop).

Compensation

  • This role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events.
  • Travel is coordinated in advance.
  • We're Klaviyo (pronounced clay-vee-oh).
  • We empower creators to own their destiny by making first-party data accessible and actionable like never before.
  • We see limitless potential for the technology we're developing to nurture personalized experiences in ecommerce and beyond.
  • To reach our goals, we need our own crew of remarkable creators-ambitious and collaborative teammates who stay focused on our north star: delighting our customers.
  • Our salary range reflects the cost of labor across various U.S. geographic markets.

Benefits

  • Raise the bar for engineering quality, operational health, and technical strategy in a fast-moving product area.
  • You'll partner closely with product managers, machine learning engineers, and data scientists to deliver customer impact at scale.
  • If you're ready to do the best work of your career, where you'll be welcomed as your whole self from day one and supported with generous benefits, we hope you'll join us.
  • The base salary offered for this position is determined by several factors, including the applicant's job-related skills, relevant experience, education or training, and work location.

Company info

  • At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day.
  • Flows is a core part of Klaviyo that helps marketers automate personalized customer journeys across channels, and our team is focused on making those journeys easier to create, manage, and improve with practical AI.

Visa & Work Authorization

  • We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability
Apply directly at Klaviyo →Create a free account for alerts like thisView Klaviyo immigration profile

This listing is sourced directly from Klaviyo's careers page and normalized into a canonical job model.