Sr. Martech Engineer, Mobile

The role

You will own the technical reliability of marketing instrumentation and integrations for iOS and Android apps. You will implement and debug mobile SDKs, build marketing integrations, and validate critical events across Mobile, Data, and Marketing teams.

What you will do

• Implement, maintain, and debug attribution, analytics, and engagement SDK integrations in iOS and Android apps
• Contribute mobile code for event tracking, identity handling, consent, and deep linking
• Define and validate SDK initialization, event sequencing, and login/logout behavior
• Investigate missing or duplicate events, incorrect parameters, SDK conflicts, and platform differences
• Partner with Core Client engineers on code reviews, SDK upgrades, release testing, and production fixes
• Configure and maintain mobile and web attribution, including SKAdNetwork/AdAttributionKit
• Implement and test deep links and deferred deep links
• Build and maintain advertising integrations, including conversion APIs and affiliate postbacks
• Partner with Data Engineering to deliver conversion events and audiences through reverse ETL
• Maintain documented definitions for marketing events and ensure tracking respects customer consent

Required qualifications

• 5+ years of software engineering experience, including hands-on mobile development and experience in Martech, adtech, growth engineering, or mobile measurement
• Strong production development experience in Swift/iOS, Kotlin/Android, and Flutter
• Hands-on experience implementing and maintaining mobile attribution, analytics, or engagement SDKs
• Experience with app lifecycle behavior, SDK initialization, identity changes, deep linking, and debugging on physical devices
• Experience delivering marketing integrations from app instrumentation through attribution and downstream delivery
• Experience with a mobile measurement partner such as Adjust, event-routing platforms such as RudderStack or Segment, or activation platforms such as Hightouch
• Strong understanding of SKAdNetwork/AdAttributionKit, ATT, advertising identifiers, and consent requirements
• Ability to use device logs, network inspection, API diagnostics, and SQL to investigate events and reconcile data
• Experience implementing tests, monitoring, or alerts for instrumentation and integrations
• Clear documentation and communication skills

Nice to have

• Production mobile development experience on both iOS and Android
• Experience with lifecycle messaging platforms, push notifications, and in-app messaging
• Familiarity with mobile release processes and automated app testing
• Warehouse or lakehouse experience, including dbt or Delta Lake
• Experience with feature flags and remote configuration
• Familiarity with predictive marketing signals such as pLTV
• Experience in a regulated environment such as financial services

Benefits

• Competitive salary and stock options
• Comprehensive benefits package
• Flexible work location, hours, and paid time off
• 401(k) matching
• Monthly Acorns account contribution & GoHenry account for your family
• Mindfulness and Financial Wellness resources, Headspace and Addition Wealth
• Acorns Career Development Program
• Roots Leadership Program for Emerging Leaders
• Community week onsite gatherings and various virtual events

Before you apply

• Acorns participates in E-Verify to confirm employment eligibility

About the company

Acorns is the financial wellness company helping everyday Americans grow their money for the long term. It is a global company with multiple life stage products serving kids, teens, adults and parents.