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.
Salary not listed
Remote10+ YOEBackend Engineering
About the role
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.
Principal Software Engineer, Workers Deploy & Config
CloudflareNew York, NY +4
Lead architecture and strategy for Cloudflare's Workers control plane as the most senior engineer on the Deploy & Config team. Own distributed systems, high-scale APIs, reliability, and developer experience powering the serverless edge platform.
220k – 303k/yr
On-site7+ YOEBackend Engineering
Principal Software Engineer, Agent Harness Bridge
OpenAISan Francisco, CA
Lead architecture and evolution of the Agent Harness Bridge at OpenAI, owning integrations between Codex harness, research infrastructure, and agent systems to enable reliable large-scale training of frontier models. Requires strong backend/infra experience, API and systems design expertise, and cross-functional leadership.
347k – 490k/yr
On-site7+ YOEBackend Engineering
Principal Software Development Engineer Person & Trust Platform
IdmeMountain View, CA
Principal engineer owning data model strategy, API contracts, and architecture for ID.me's foundational Person, Trust, and Inspection Catalog systems that determine identity and confidence scoring. Requires 10+ years experience with deep expertise in graph data modeling and source-of-truth APIs.
243k – 307k/yr
On-site10+ YOEBackend Engineering
Principal Software Engineer, Trading Systems
NinjaTraderChicago, IL
Lead design, development, and optimization of Scala-based, low-latency trading infrastructure and services for high-volume, 24x7 retail futures trading. Requires extensive experience building high-performance distributed trading systems, JVM tuning, and mentoring engineers.
195k – 220k/yr
On-site7+ YOEBackend Engineering
Principal Software Engineer, Money Group
GustoDenver, CO +2
Technical lead for Gusto's Money Group, guiding architecture and service migrations for financial infrastructure including payments, lending, and accounts. Requires 10+ years experience building regulated financial systems at scale.