Software Engineer II; Mobile Developer - Mobile App

Position: Software Engineer II (Mobile Developer) - Mobile App Growth
Location: Boston

This job is with Klaviyo, an inclusive employer and a member of my Gwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

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  to see how we empower creators to own their own destiny.

Why you should join the Mobile App Growth team

The Mobile App Growth team, a diverse group of accomplished engineers, focuses extensively on developing new, greenfield projects within the mobile application domain. Their work is cross-functional, spanning various mobile platforms, and includes developing full-stack solutions to support product features exposed to mobile users via our SDKs.

Over the past year, the Mobile App Growth team at Klaviyo has introduced new mobile-first features (like geofencing and in-app forms) and enhanced Klaviyo’s mobile integration offerings. This expansion has augmented the scope of the team’s responsibilities. With new products to cultivate and integrations to support, the team requires a highly capable software engineer to help manage the increasing demands within Klaviyo's mobile ecosystem.

This engineer will contribute to the expansion and maintenance of the team’s mobile SDK offerings, furthering current product features and extending Klaviyo’s reach beyond traditional email marketing into comprehensive mobile engagement.

How You'll Make an Impact

You will be a core member of the Mobile App Growth team, working on impactful mobile experiences 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.

Who you are

Deep experience modern mobile development (either Android, iOS or cross-platform experience)

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 - As the member of the team, we are looking for someone who can bring with them expertise in mobile development.

Adaptability - We will be working not just in native SDKs but also backend and frontend Klaviyo stacks, dev tooling and possible expansion into tertiary SDKs in the future.

Ambition - We are looking for people that can take an idea and have the ambition to headline it in the future.

Learning - To be always learning is a core value at Klaviyo and this role will require someone excited to learn new technologies and expose themselves to new approaches

Technologies We Use (not exhaustive)

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 here

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

Our salary range reflects the cost of labor across various U.S. geographic markets. The range displayed below reflects the…