Senior Product Engineer, Growth & Lifecycle Infrastructure - Music & Audio

stabilityai; United States; Remote; USD 150,000 - 230,000; Full time

Job summary

stabilityai is seeking a senior product engineer to own the ground-up build of product-led growth and lifecycle infrastructure for its Music & Audio vertical, spanning web, desktop, plugin, and mobile surfaces. The work is greenfield: selecting tools, designing the event model, wiring integrations, and operating the system end to end.

You will define a measurable funnel from anonymous visitor through paying subscriber to expanded account, sitting at the intersection of growth marketing,

Qualifications

• 6+ years of end-to-end ownership of product or growth infrastructure.
• Hands-on growth marketing and lifecycle marketing experience with implementation.
• Production experience across martech stack: CDPs, product analytics, lifecycle/messaging, billing, reverse-ETL, and transformation layers.
• Proven ability to ship in-app PLG mechanics driving growth.
• Comfort operating without a product manager: milestone setting and scheduling.

Responsibilities

• Own the full growth stack for the Music & Audio vertical — CDP, analytics, lifecycle/messaging, experimentation, warehouse, reverse-ETL, and entitlements.
• Design a unified event taxonomy with consistent schema and identity resolution across the journey.
• Build and attribute the full growth funnel across paid, organic, partner, and in-product channels.
• Architect in-app PLG mechanics including viral loops, referrals, upgrades, and sharing hooks.
• Define and execute lifecycle marketing: segmentation, triggers, and messaging cadences for activation and expansion.
• Ship free-to-paid logic: trial mechanics, paywalls, in-app messaging, and entitlement checks.
• Build onboarding, churn-risk, reactivation, and win-back sequences.
• Instrument A/B experimentation with exposure logging and guardrails.
• Own the growth dashboard covering activation, conversion, ARPU, LTV, retention cohorts, and expansion rate.

Skills

TypeScript

Node.js

Python

SQL

Growth marketing

Product lifecycle marketing

Tools

CDP

Product analytics

Lifecycle/messaging

Billing systems

Reverse ETL

Data transformation

Job description

Role overview

A senior product engineer is needed to own the ground-up build of product-led growth and lifecycle infrastructure for a music and audio product line, spanning web, desktop, plugin, and mobile surfaces. The work is greenfield: choosing tools, designing the event model, wiring integrations, and operating the system end to end. The mandate is a measurable, attributable funnel from anonymous visitor through paying subscriber to expanded account, sitting at the intersection of growth marketing, lifecycle systems, and in-product conversion mechanics.

Responsibilities

• Select, justify, and own the full growth stack for the Music & Audio vertical — CDP, product analytics, lifecycle/messaging, experimentation, warehouse, reverse-ETL, and entitlements — including cost modeling and tradeoff analysis.
• Design a unified event taxonomy with consistent schema and identity resolution across the anonymous → free → paid → multi-device journey.
• Build and attribute the full growth funnel across paid, organic, partner, and in-product virality channels.
• Architect in-app PLG mechanics including viral loops, referral systems, upgrade prompts, and sharing hooks.
• Define and execute lifecycle marketing strategy: segmentation, behavioral triggers, and messaging cadences for activation, habit formation, and expansion.
• Ship free-to-paid logic: trial mechanics, paywalls, in-app messaging, and entitlement checks across web and native runtimes.
• Build onboarding, churn-risk, reactivation, and win-back sequences.
• Instrument A/B experimentation with exposure logging and statistical guardrails.
• Own the growth dashboard covering activation, conversion, ARPU, LTV, retention cohorts, and expansion rate.

Requirements

• 6+ years of end-to-end ownership of product or growth infrastructure inside a B2C or PLG B2B company.
• Deep, hands‑on expertise in growth marketing and product lifecycle marketing with a track record of implementation, not just theory.
• Production experience across the modern martech stack: CDPs, product analytics, lifecycle/messaging, billing, reverse-ETL, and transformation layers.
• Proven ability to ship in-app PLG mechanics where the product itself drives growth.
• Proficiency with TypeScript, Node.js, Python, and SQL.
• Daily fluency with AI‑augmented development tools such as Claude Code, Cursor, Codex, or equivalents.
• Experience designing event taxonomies that hold up without schema drift.
• History of shipping paywall and entitlement logic in production where revenue depended on it.
• Comfort operating without a product manager: setting milestones, owning the schedule, and escalating when needed.

Nice to have

• Experience with B2C subscriptions in creative tools, music, or design.
• Exposure to music or creative-platform go‑to‑market motions.
• Open‑source contributions to data tooling.
• Experience as the first PLG or growth engineer at a company.
• A track record of building in public through Product Hunt, startup networks, or active presence on social platforms.

Benefits and work setup

Success milestones are clearly staged: by day 30 the stack is chosen and approved with identity resolution working and an event taxonomy drafted; by day 60 the full taxonomy is live with a first lifecycle sequence in production and a baseline dashboard; by day 90 paywall and entitlement logic are in production with attribution closing the loop on at least one paid channel; by day120 an experimentation framework is in active use with the first growth experiment results read out to leadership.