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Senior AI Engineer: Scalable Backend & AI Agents

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70% 1 of 2 skills

aipython

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152 000 – 228 000 $

Location: Boston, United States
Region: North America
Grade: Senior
Experience: 7+ yrs
Category: AI Engineering
Country
Company: Product
Size: 501-1000
Domains: AI

whatjobs Posted Jul 30, 2026

Summary

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

A leading tech company in Boston is seeking an experienced Sr. AI Engineer to design and build scalable backend systems powering AI solutions. The ideal candidate has 5â€“7 years of experience with a strong focus on backend systems and distributed architectures, proficiency in Python, and familiarity with big data tools. This role offers competitive compensation of $152,000 â€” $228,000 annually and a comprehensive benefits package.

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Klaviyo Inc.

last week

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 Backend Engineer, AI Agent Platform

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 - 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

Senior AI Software Engineer – Flows Backend

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

Senior Software Engineer, Agent Platform

Senior Software Engineer designs and scales backend systems for AI-driven marketing agents at Klaviyo, working with Python, distributed systems, and tools like LangChain and vLLM.

agentic-aiaiapiawscloud +18 skills

148 000 – 222 000 $

65% · 15/23 skills