Principal Engineer
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Job Description
Principal Engineer setting AWS architecture, service, and data direction for Yourgi’s AI-first pet-care marketplace. Leading platform modernization, reliability, and engineering standards across API, web, and mobile.
Responsibilities:
- Own the target cloud services architecture on AWS and the roadmap to get there, including simplifying a large estate of Lambda services and reducing dependence on legacy partner systems
- Lead service design by defining service boundaries, event and API patterns, and versioned contracts that stay backward compatible with older app versions
- Own database design and optimization, including data models, schema standards, query and index performance, and the path from MySQL databases to a well-governed data architecture
- Draft architecture and design documentation and chair reviews for changes crossing teams or touching payments, booking, or customer data
- Raise the engineering bar for code review, testing strategy, observability, and performance budgets such as P75 latency
- Partner with Engineering Services on CI/CD, unattended deploys and rollbacks, and production monitoring
- Shape the spec-driven, AI-assisted delivery workflow with product and design, from PRD to stories, code, tests, and deploy
- Mentor senior engineers and tech leads, help hire, and assess build-vs-buy decisions
- Map the current architecture, data stores, technical risks, and production issues in the first 30 days
- Publish the target architecture, data model direction, architectural decision records, API contract, and schema standards by day 60
- Implement and launch the first target-architecture component, run an AI-assisted workflow on a live project, and deliver a measurable architecture improvement to production by day 90
Requirements:
- 12+ years building and running production software, including 4+ years as a staff, principal, or architect-level engineer
- Deep experience with AWS cloud services, serverless and event-driven systems, and microservice-to-platform migrations
- A record of designing APIs, services, and data models that many teams and client versions depend on
- Strong relational database design and performance tuning (MySQL or PostgreSQL), including schema evolution in live systems
- Hands-on with modern testing, CI/CD, and observability
- Practical experience using AI coding and agent tools on real codebases, with sound judgment about where they help
- Clear writing; you persuade with design docs, not authority
- Marketplace, booking, scheduling, or payments (Stripe) systems
- Data architecture for analytics: pipelines, a data lake or warehouse (e.g., Snowflake), and event tracking
- Mobile apps that must support older versions in the field
- Technical leadership through an org or platform transformation
- Must be authorized to work in the US; no visa sponsorship
Benefits:
- Health, vision, dental, long & short-term disability, and Life insurance
- A Startup mentality company with stable funding
- 401k match
- Pet Care discounts
- Flexible Time Off
- Opportunity to grow your career with a network of like-minded professionals
- 20% bonus
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