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Senior Frontend Engineer, Profiles & Real-Time Segments

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Profile match

61% 4 of 6 skills

data-sciencedjangoklaviyo

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How your CV reads against this role — fit, gaps, and ATS flags.

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

whatjobs Posted Jul 30, 2026

Summary

Senior Frontend Engineer building scalable systems for user profiles, lists, and real-time segments using React, TypeScript, and Python/Django in a product-focused role.

Klaviyo is seeking a Senior Software Engineer for the PLS team in the US. You will design scalable frontend-backend systems that power profiles, lists, and real-time segments, partnering with Product, Design, and Data Science to deliver delightful user experiences.

Join a team that emphasizes reusable components with React, TypeScript, Python, and Django, and offers growth through a central product role in Klaviyo.

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Klaviyo Inc.

2 weeks ago

Senior Frontend Engineer, Real-Time Profiles & Segments

North AmericaSenior

Senior frontend engineer building real-time customer data management tools using React, TypeScript, and Python, collaborating with product and design teams.

data-sciencepythonreacttypescript

67% · 3/4 skills

Klaviyo

2 weeks ago

Senior Frontend-First Full-Stack Engineer — New Products

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.

Lead New Products team, define product architecture, collaborate with customers, using Django and React. Build scalable systems.

Senior Software Engineer - Profiles, Lists and Segments

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.

Builds and scales core customer-data tools (profiles, lists, real-time segments) using React, TypeScript, Python, and Django to let ecommerce marketers target and personalize messages.

aiapicsscypressdata-science +20 skills

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