ApplyBlast uses AI to match you with the right jobs, tailor your resume and cover letter, and apply automatically so you can land your dream job faster.

Features

Auto Apply Resume Optimizer Cover Letter Optimizer Interview Prep

Company

Social Media

Need Help?

team@applyblast.com

Senior Software Engineer at Klaviyo - ApplyBlast

Senior Software Engineer

Klaviyo

4 months ago

3.3 on Glassdoor

Boston, MA

Hybrid

Full Time

Senior

1 applicant

View Job Listing

Apply to 100+ jobs

About this role

A Senior Engineer on the Klaviyo Composer team builds foundational AI-powered conversational experiences for marketing strategy. This role involves developing scalable, agentic UI frameworks and LLM-driven systems that empower over 170,000 brands to automate customer engagement. As a technical leader, the candidate will mentor peers, drive architectural decision-making, and ship high-quality, reliable solutions for autonomous marketing platforms.

Responsibilities

Architect and build scalable agentic UI frameworks for conversational marketing
Develop LLM-powered agents to analyze and optimize customer engagement campaigns
Lead technical decision-making and mentor engineering team members on complex challenges
Design cloud-native solutions ensuring high reliability and performance at scale
Drive code quality through rigorous reviews and robust testing deployment cycles

Skills

About Klaviyo

klaviyo.com

Headquarters

Boston, Massachusetts, United States

Company Size

1001-5000 employees

Founded

2012

View Profile

Klaviyo is a B2C CRM and marketing automation platform that unifies AI-powered email and SMS to help ecommerce brands drive growth and retention. It uses customer data, advanced segmentation, and automation flows to deliver personalized, omnichannel experiences across email, SMS, WhatsApp, and more — including AI-driven capabilities via K:AI Agents. Klaviyo emphasizes measurable results with analytics, testing, and integrations with major ecommerce platforms to boost revenue and lifetime value. Companies use it to build targeted lifecycle campaigns, personalized messaging, and data-driven retention strategies at scale.