Principal Software Engineer, Growth

Fetch

5d•Remote

About The Position

Fetch is entering a pivotal phase where user lifecycle growth is the company’s north star for 2026. The Growth Engineering organization owns the platforms and product systems that drive acquisition, activation, engagement, retention, and reactivation across the Fetch consumer ecosystem. This team focuses on accelerating experimentation, improving user journeys, and building the engagement infrastructure that systematically increases MAU growth, retention, and lifetime value. As a Principal Engineer in Growth, you will operate as a senior technical leader responsible for shaping the architecture, scalability, and evolution of these platforms. You will partner closely with Engineering, Product, Growth Marketing, and Data to design systems that enable faster experimentation, stronger engagement loops, and measurable growth outcomes. This is a hands-on technical leadership role with influence across multiple teams. You will guide system design, define technical standards, and mentor engineers while helping the organization move faster without sacrificing reliability or long-term system health. This is a full-time role that can be held from one of our US offices or remotely in the United States.

Requirements

10+ years of software engineering experience, including deep experience building and operating distributed systems at scale
Strong background in backend architecture, distributed systems, or high-scale platform infrastructure
Proven ability to design systems that support high-throughput user-facing applications
Experience building or scaling experimentation platforms, engagement systems, or growth-focused product infrastructure
Demonstrated experience influencing technical strategy across multiple teams without direct authority
Strong understanding of system reliability, observability, and operational best practices
Experience partnering closely with Product, Data, and cross-functional stakeholders to deliver measurable business outcomes
Ability to evaluate architectural tradeoffs and communicate complex technical decisions clearly
Experience leveraging AI-assisted development tools to improve engineering productivity and system quality

Nice To Haves

Experience working on growth, retention, loyalty, marketplace, or monetization systems
Experience supporting high-volume consumer mobile applications
Familiarity with experimentation frameworks, event-driven architectures, and analytics pipelines
Experience designing systems that support real-time notifications, messaging systems, or user engagement platforms
Strong programming experience in Go, Java, Kotlin, or similar backend languages
Experience improving developer velocity through platform improvements or internal tooling
Ability to translate complex technical concepts into clear explanations for non-technical partners