# Principal Software Engineer, Growth

**Company:** [Fetch](https://hotfix.jobs/companies/fetch)
**Location:** Remote
**Role:** Backend Engineering
**Experience:** 10+ years
**Skills:** Go, Java, Kotlin, Distributed Systems, Backend Architecture, Experimentation Platforms, A/B Testing, Observability, CI/CD, Github Copilot
**Posted:** 2026-03-17

> Lead architecture and scaling of growth platforms driving user acquisition, engagement, and retention. Partner cross-functionally to enable experimentation, mentor engineers, and ensure reliable high-scale systems. Requires 10+ years experience in distributed systems.

## Job Description

## Responsibilities
- Architect and scale growth platforms including loyalty mechanics, notifications, gaming systems, and retention features to support millions of users.
- Enable rapid experimentation infrastructure for A/B testing and iteration while maintaining stability.
- Lead system design, technical strategy, and architectural decisions across growth systems.
- Drive cross-team alignment with Product, Data, Platform, and Growth Marketing.
- Improve platform performance, reliability, observability, and resilience.
- Mentor senior engineers and elevate engineering practices.
- Champion engineering productivity tools like AI-assisted development (GitHub Copilot, Claude Code), CI/CD, and observability.
- Model technical excellence through ownership and impact.

## Requirements
- 10+ years software engineering experience building/operating distributed systems at scale.
- Strong backend architecture, distributed systems, high-scale infrastructure.
- Experience with high-throughput user-facing apps, experimentation/growth platforms.
- Influencing technical strategy across teams without authority.
- System reliability, observability, operational best practices.
- Partnering with Product/Data stakeholders for business outcomes.
- Evaluate tradeoffs, communicate technical decisions.
- Experience with AI-assisted development tools.
- **Bachelor’s degree or higher** in Computer Science, Engineering, or related field (or equivalent).

## Nice to Haves
- Growth, retention, loyalty, marketplace, monetization systems.
- High-volume consumer mobile apps.
- Experimentation frameworks, event-driven architectures, analytics pipelines.
- Real-time notifications, messaging, user engagement platforms.
- Strong programming in **Go**, **Java**, **Kotlin**.
- Platform improvements/internal tooling for developer velocity.

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**Apply:** https://hotfix.jobs/jobs/339d9cdf-4862-4268-a529-54b937cb203a
**Canonical:** https://hotfix.jobs/jobs/339d9cdf-4862-4268-a529-54b937cb203a