Senior AI-Driven Full-Stack Engineer

Klaviyo Inc.; Boston (MA); On-site; USD 148,000 - 222,000; Full time

Benefits offered by this job

Participation in annual cash bonus plan

Health, welfare, and wellbeing benefits

Equity and sign-on payments

Job summary

Klaviyo Inc. is seeking a Sr. Software Engineer to join Flows AI in Boston, Massachusetts. In this full-stack role, you will help build backend systems that power AI agent capabilities, enabling personalized customer journeys. You will work closely with product managers and data scientists to enhance marketing automation.

The position requires 5-7 years of experience in full-stack software development with strong capabilities in AI and cloud-native technologies. The role includes building scalable systems and shaping architecture within a fast-paced environment.

Qualifications

• 5-7 years of professional experience in full-stack software engineering.
• Experience shipping AI-powered product capabilities or complex product initiatives.
• Hands-on experience with cloud-native architectures and container orchestration.

Responsibilities

• Drive the technical design of customer-facing AI capabilities.
• Own projects end to end, from ambiguity to shipping features.
• Build scalable full-stack systems including backend and product experiences.

Skills

Full-stack software engineering

AI-powered product capabilities

Asynchronous processing

Database management

Cloud-native architectures (AWS)

REST APIs

Collaboration with product managers

React or similar front-end technologies

Tools

Python/Django

Celery

Kafka

Kubernetes

Job description

Klaviyo Inc. is seeking a Sr. Software Engineer to join Flows AI in Boston, Massachusetts. In this full-stack role, you will help build backend systems that power AI agent capabilities, enabling personalized customer journeys. You will work closely with product managers and data scientists to enhance marketing automation.

The position requires 5-7 years of experience in full-stack software development with strong capabilities in AI and cloud-native technologies. The role includes building scalable systems and shaping architecture within a fast-paced environment.