Position Details

Type Full-Time

Experience lead

Exp. Years 8+ years

Education Not Specified

Category Software Engineering

About this role

Lead Software Engineer, Mobile Channels at Klaviyo, responsible for architecture and delivery of the mobile messaging pipeline (SMS, RCS, WhatsApp) across high-throughput distributed systems on AWS.

Key Responsibilities

Lead a team of engineers to build and scale Klaviyo's mobile messaging infrastructure across SMS, RCS, WhatsApp
Own architecture of the messaging pipeline from ingestion to delivery
Design and implement scalable services in Python and Go
Ensure compliance with carrier and messaging regulations
Collaborate cross-functionally with product, deliverability, and platform teams

Technical Overview

Hands-on backend engineering role focusing on Python/Go, AWS, and messaging infrastructure with strong emphasis on scale, reliability, and carrier integrations.

Ideal Candidate

The ideal candidate is a senior software engineer with 8+ years of experience, strong backend and systems design skills, and hands-on leadership for mobile channels messaging infrastructure (SMS/RCS/WhatsApp).

Must-Have Skills

8+ years of engineering experiencehands-on technical leadershipproficient in Python and/or Goexperience with high-throughput distributed systemsexperience with AWSmobile messaging pipeline experience

Nice-to-Have Skills

SMS/MMS infrastructureRCStelecom APIsmessaging compliancecarrier integrations

Tools & Platforms

PythonGoAmazon Web ServicesAWS

Required Skills

8+ yearsbackendpythongoawssms rcS whatsapp business apidistributed systemsarchitecturereliabilitycarrier integrations

Hard Skills

PythonGoAmazon Web ServicesAWSRCSSMSWhatsApp Business APIcarrier integrations

Soft Skills

leadershipmentorshipcommunicationproblem solvingprioritization

Industry & Role

Industry SaaS

Job Function Lead the design and delivery of Klaviyo's mobile messaging infrastructure

Role Subtype Lead Software Engineer

Tech Domains Python, Go, Amazon Web Services

Keywords for Your Resume

lead software engineermobile channelssmsrcswhatsapp business apicarrier integrationstelecom APIsdistributed systemspythongoawsamazon web servicesarchitecturecode reviewbackend systemsdeliverabilityklaviyo

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