# Software Engineer II - SMS International at Klaviyo

- Company: Klaviyo
- Status: Open
- Workplace: On-site
- Location: London, UK
- Level: Mid-level
- Discipline: Backend
- Employment: Full-time
- Salary: £68K–102K
- Posted: 2026-09-30
- Skills: Engineering
- Apply: https://www.klaviyo.com/careers/jobs/8006729003?gh_jid=8006729003

## Description

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo? Visit klaviyo.com/careers to see how we empower creators to own their own destiny. 
 About the Team 
 This role is for the SMS International team that is part of Mobile Platforms. 
 The Mobile Platforms team at Klaviyo is responsible for empowering the over 200,000 Ecommerce clients we work with on a global scale to deliver effective experiences on mobile devices. This team focuses on performance optimization and continuous development of our Mobile Marketing Channels (SMS, Push Notifications, In App Messages, WhatsApp and RCS), Mobile SDKs (iOS, Android and React Native). While Email was how Klaviyo began, Mobile messaging is truly the way of the future.
 The SMS International team within Mobile Platforms is responsible for the expansion of SMS capabilities into new countries and regions and is also spearheading the development of RCS as a new capability to be offered to customers alongside existing channels. We have an ambitious roadmap for 2026 and 2027 that puts the team at the heart of the company’s objectives and it is an exciting time to join the team!
 About the Role 
 As a Fullstack Software Engineer II joining the SMS Internati

More Klaviyo roles: https://deviantjobs.com/companies/klaviyo