Principal Software Engineer, Growth

About the role

Fetch is entering a pivotal phase where user lifecycle growth is the company's north star for 2026. The Growth Engineering organization owns the consumer-facing systems and product experiences that drive acquisition, activation, engagement, retention, and reactivation across the Fetch ecosystem. This includes areas like personalization, notifications, recommendations, experimentation, onboarding, monetization, and other core growth surfaces that directly influence user behavior and business outcomes.

Responsibilities

• Build Consumer-Facing Growth Experiences
• Design and evolve the systems and product surfaces that power user engagement across Fetch, including personalization, notifications, recommendations, onboarding flows, loyalty experiences, gamification, and retention-driving features.
• Drive Experimentation and Product Iteration
• Help teams move quickly by building and improving experimentation capabilities that enable rapid testing, iteration, and measurement across the user lifecycle.
• Balance experimentation velocity with long-term product quality and platform health.
• Own Product-Oriented Technical Strategy
• Partner closely with Product, Design, Data, and cross-functional stakeholders to translate business goals into scalable consumer experiences. Make thoughtful tradeoffs between user experience, speed, reliability, and long-term architecture.
• Improve Engagement, Retention, and Conversion
• Design systems that directly influence user behavior and improve growth metrics such as engagement, activation, conversion, retention, and monetization. Use data and experimentation to continuously improve the customer experience.
• Lead Cross-Team Technical Direction
• Influence technical direction across multiple teams and help establish consistent approaches for growth systems, experimentation, personalization, and engagement infrastructure.
• Raise the Engineering Bar
• Mentor senior engineers and technical leaders across the organization. Promote strong engineering fundamentals, pragmatic decision making, operational excellence, and product-minded engineering culture.
• Accelerate Developer and Product Velocity
• Champion tools, workflows, and engineering practices that improve product development speed and experimentation efficiency, including AI-assisted development workflows, observability improvements, and scalable internal tooling.
• Model Technical Excellence
• Lead by example through thoughtful architecture, pragmatic decision making, and strong engineering fundamentals. Promote a culture of ownership, accountability, and measurable impact.

Requirements

• 10+ years of experience building and scaling consumer-facing products and user experiences
• Strong experience building product experiences that directly influence engagement, discovery, activation, retention, conversion, or monetization
• Proven ability to partner closely with Product, Design, Data, and cross-functional stakeholders to deliver measurable customer and business outcomes
• Experience working on consumer growth areas such as search, recommendations, personalization, notifications, onboarding, feeds, messaging, experimentation, or lifecycle experiences
• Experience building and evolving high-scale consumer web or mobile applications
• Strong product and user experience instincts, including thoughtful decision making around experimentation, usability, performance, and long-term product quality
• Strong engineering fundamentals and ability to build reliable, scalable, and maintainable systems
• Strong programming skills and ability to operate effectively across the stack when needed

Qualifications

• Bachelor’s degree or higher in Computer Science, Engineering, or a related technical field. Equivalent practical experience may be considered

Skills

• Experience building or scaling experimentation systems and running large-scale A/B testing programs
• Experience working on lifecycle engagement experiences such as notifications, messaging, recommendations, personalization, or retention systems
• Experience working on growth, retention, loyalty, marketplace, social, or monetization-focused consumer products
• Familiarity with analytics, experimentation, and personalization systems that help teams better understand and improve user behavior
• Experience improving product iteration speed and experimentation velocity through tooling, workflows, or internal product capabilities

Benefits

At Fetch, we offer competitive compensation packages including base, equity, and benefits to the exceptional folks we hire. Discover our benefits and how our employees live rewarded at https://fetch.com/careers.

Pay

Compensation details are provided in the "What You’ll Do" section above.

Schedule

The role can be held from one of our US offices or remotely in the United States.