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Senior AI Software Engineer – Flows Backend

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67% 1 of 2 skills

aiklaviyo

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148 000 – 222 000 $

Location: Boston, United States
Region: North America
Grade: Senior
Category: Backend
Country
Relocation: Not supported
Company: Product
Size: 501-1000
Domains: AI

whatjobs Posted Jul 30, 2026

Summary

Senior AI Software Engineer at Klaviyo in Boston builds and designs scalable full-stack AI systems for the Flows backend, owning projects end-to-end.

Klaviyo is seeking a Sr. Software Engineer to join their Flows AI team in Boston, Massachusetts. In this role, you'll drive the technical design for AI capabilities, owning projects end to end and building scalable full-stack systems. Experience in software engineering, especially with AI technologies, is essential to succeed.

The position offers a competitive salary range of $148,000—$222,000 USD, plus potential bonuses and benefits. The role may require up to 10% travel for onboarding and industry events.

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Klaviyo

4 days ago

Senior Software Engineer - Flows AI

Open 47d North AmericaSenior H-1B sponsor history USCIS — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.

Build backend systems and AI-powered features for Klaviyo’s Flows product, enabling automated, personalized customer journeys with scalable distributed systems and full-stack development.

agentic-aiaiangularapiautomation +20 skills

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Senior AI Engineer at Klaviyo in Boston builds and scales backend systems that power AI solutions, using Python and distributed architectures.

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HybridNorth AmericaSenior

Senior Backend Engineer at Klaviyo in Boston builds and scales systems that power AI solutions for 167K+ customers, collaborating with product and data science teams.

aigenerative-aiklaviyo

Senior AI Engineer: Scalable Backend & AI Agents (Boston)

North AmericaSenior

Senior AI Engineer builds scalable backend systems and distributed architectures in Python to power AI solutions at a Boston-based tech company.

Senior AI Engineer - Customer Agent

Open 58d North AmericaSenior H-1B sponsor history USCIS — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.

Senior AI Engineer at Klaviyo builds and scales backend systems for AI-driven customer agent products, leveraging Python, FastAPI, and AWS to power marketing automation for 167K+ clients.

agentic-aiaiapiawsci-cd +19 skills

Senior Backend Engineer, AI Agent Platform

HybridNorth AmericaSenior

Designs and scales backend systems for AI solutions, focusing on generative AI and ML projects in a hybrid work environment.

aigenerative-aiklaviyomachine-learning

148 000 – 222 000 $

61% · 2/4 skills