Klaviyo

London, England

2,400 Total Employees

Year Founded: 2012

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Engineering 5 Sales 4 Customer Success & Experience 2 Cybersecurity 1 Data & Analytics 1 Product Management 1 Program & Project Management 1

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Abel Rodriguez

Published on December 22, 2025

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Abel Rodriguez

Updated on December 22, 2025

32 US Companies With Offices in London

Some of the most well-known companies in the United States have offices in this bustling capital city — and lots of them are hiring.

Ashley Bowden

Updated on January 12, 2026

41 Top Companies in London to Know

These companies are boosting London’s business scene across a wide range of industries.

Margo Steines

Updated on March 18, 2026

57 Software Companies in London to Know

These software companies are developing solutions for a wide range of use cases across advertising, fintech, logistics and more.

Abel Rodriguez

Updated on December 05, 2025

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Abel Rodriguez

Updated on March 16, 2026

24 Artificial Intelligence Companies in London

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Updated on January 13, 2026

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Margo Steines

Updated on January 06, 2026

21 Digital Marketing Companies in London to Know

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Margo Steines

Updated on February 13, 2026

23 Top Marketing Companies in London

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Margo Steines

Updated on March 23, 2026

83 Top Tech Companies in London

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Recently posted jobs

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Klaviyo

Senior Software Engineer, Internationalisation Platform

10 Hours AgoSaved

Easy Apply

Hybrid

London, Greater London, England, GBR

Easy Apply

Consumer Web • eCommerce • Marketing Tech • Retail • Software • Analytics • Generative AI

As a Senior Software Engineer, you'll lead complex projects in the Internationalisation Platform, enhancing translation and localisation capabilities. You'll collaborate with cross-functional teams, ensure system excellence, and mentor junior engineers.

Klaviyo

Software Engineer, Internationalisation Platform

10 Hours AgoSaved

Easy Apply

Hybrid

London, Greater London, England, GBR

Easy Apply

Consumer Web • eCommerce • Marketing Tech • Retail • Software • Analytics • Generative AI

As a Software Engineer on the Internationalisation Platform Team at Klaviyo, you'll develop features for translations, localisations, and handle multiple currencies. You'll collaborate with others and be responsible for end-to-end feature delivery, while supported by a mentor for professional growth.

Klaviyo

Lead IT Systems Engineer

10 Hours AgoSaved

Easy Apply

Hybrid

London, Greater London, England, GBR

Easy Apply

Consumer Web • eCommerce • Marketing Tech • Retail • Software • Analytics • Generative AI

Lead IT Systems Engineer overseeing the design, implementation, and maintenance of SaaS systems, managing projects and collaborating with teams to ensure efficient operations.

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