Software Engineer II; Mobile Developer - Mobile App

Overview

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace. 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. The Mobile App Growth team leads new, greenfield projects within the mobile application domain and develops full-stack solutions to support product features exposed to mobile users via our SDKs.

The team has introduced mobile-first features and enhanced Klaviyo’s mobile integration offerings, expanding responsibilities. This engineer will contribute to the expansion and maintenance of the team’s mobile SDK offerings, furthering current features and extending Klaviyo’s reach beyond traditional email marketing into comprehensive mobile engagement.

Why you should join the Mobile App Growth team

The Mobile App Growth team is a diverse group of engineers focused on building impactful mobile experiences and cross-functional work across platforms.

• You will be a core member of the Mobile App Growth team, working on impactful mobile experiences and making mobile integrations a core pillar of Klaviyo’s offerings.
• Work closely with product to provide the best experience for our customers.
• Take ownership of projects from inception to release.
• Work across different mobile technologies.
• Work in the Django framework to help build out a pipeline for rendered mobile experiences.

• Deep experience in modern mobile development (Android, iOS or cross-platform).
• Open to working with different technologies:
  Python, React, AWS, GoLang (prior experience not required but nice to have).
• Have a proven track record of leading projects and collaborating well with the wider team.
• Experience working with mobile webviews and location services.
• Comfortable leveraging AI technologies effectively in personal contributions.
• Self-starter who can bring expertise in mobile development.
• Adaptability to work across native SDKs as well as backend and frontend Klaviyo stacks, dev tooling and potential expansion into additional SDKs.
• Ambition to headline ideas in the future.
• Commitment to learning—eager to learn new technologies and explore new approaches.

• iOS (Swift)
• Android (Kotlin)
• React Native
• Flutter
• React, Type Script, Redux
• Python, Django
• MySQL, Redis, DynamoDB
• AWS (EC2, RDS, Aurora), Terraform

We use Covey as part of our hiring and/or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey.

Massachusetts Applicants

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment. An employer who violates this law shall be subject to penalties.

Our salary range reflects the cost of labor across various U.S. geographic markets. The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant’s job-related skills, relevant experience, education or training, and work location.

In addition to base salary, our total compensation package may include participation in the company’s annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility.

Your recruiter can provide more details about the specific salary/OTE range for your preferred location during the hiring process.

Base Pay Range For US Locations:

$116,000—$174,000 USD

Get to Know Klaviyo

We’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable. If you’re…