Sr. Martech Engineer, Mobile

Acorns

1d•$170,800 - $205,700•Remote

About The Position

Acorns is seeking a Senior Martech Engineer, Mobile to own the technical reliability of marketing instrumentation and integrations, with a strong focus on its iOS and Android apps. The role implements and debugs mobile SDKs, builds marketing integrations, and validates that critical events reach their destinations with correct data. It works across Mobile Engineering, Data Engineering, and Marketing to deliver changes end to end. Acorns is a remote-first organization, with flexibility to work remotely and optional access to office space in Irvine, California. The position also supports lifecycle marketing, platform configuration, integration monitoring, and event validation across mobile, web, backend, data, and advertising platforms.

Requirements

At least 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, with working familiarity with the other platform.
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, and 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 across systems.
Experience implementing tests, monitoring, or alerts for instrumentation and integrations.
Clear documentation and communication skills, including the ability to scope ambiguous problems and drive them to completion across teams.
Hunger to deliver game-changing products; exceptional drive and precision in delivery; belief that work is tied to life's mission; optimism about the potential of societal change.

Nice To Haves

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.

Responsibilities

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 cross-platform or app-version differences.
Partner with Core Client engineers on code reviews, SDK upgrades, release testing, and production fixes.
Configure and maintain mobile and web attribution, including attribution windows, reattribution, deduplication, fraud filtering, and SKAdNetwork/AdAttributionKit.
Implement and test deep links and deferred deep links for acquisition and lifecycle campaigns.
Build and maintain advertising integrations, including conversion APIs, enhanced conversions, affiliate postbacks, and conversion crediting.
Partner with Data Engineering to deliver conversion events, audiences, and suppressions through reverse ETL.
Investigate discrepancies between internal conversion data, the attribution provider, and ad platforms, and resolve underlying issues.
Maintain documented definitions for marketing events, including required parameters, identifiers, owners, and destinations.
Ensure anonymous and authenticated activity connects correctly across app SDKs and downstream platforms.
Work with first-party customer IDs, device and advertising IDs, click IDs, and hashed PII, while ensuring tracking and data delivery respect customer consent.
Maintain consistent event and identity definitions for marketing use cases across mobile, web, and backend systems.
Own and maintain integrations across apps, marketing tools, the data platform, and ad platforms, with documented data flows and ownership.
Support Lifecycle Marketing with event triggers, personalization, audience delivery, push notifications, and deep links.
Partner with platform owners and vendors on technical configuration, administration, and troubleshooting.
Validate event payloads and downstream delivery for critical marketing flows before app releases.
Automate testing and monitor critical marketing flows for event and delivery issues.
Trace events from apps through attribution and ad platforms to diagnose and resolve failures.
Scope and deliver instrumentation and integration changes with Marketing, Mobile, and Data Engineering.

Benefits

Competitive salary and stock options.
Comprehensive benefits package for the employee and family.
Flexible work location and hours, and paid time off.
401(k) matching.
Monthly Acorns account contribution and GoHenry account for the employee's family.
Mindfulness and Financial Wellness resources, including Headspace and Addition Wealth.
Acorns Career Development Program, including ongoing training sessions, development plans, development check-ins, and Cornerstone’s online training platform.
Roots Leadership Program for Emerging Leaders.
Community week onsite gatherings and various virtual events.
Medical, financial, and other benefits, including vacation, sick time, and parental leave, depending on the position offered.