Senior AI Platform Engineer — Scalable LLM Systems

Porch; Seattle (WA); Remote; USD 169,000 - 236,000; Full time

Benefits offered by this job

Health and wellness benefits

401(k) with company match

Paid holidays and flexible vacation

Employee assistance programs

Job summary

Porch Group is seeking a Senior Platform Engineer - AI Platform to lead AI-first platform work across production infrastructure. You will own the PHP application, AWS/ECS, and MySQL/Aurora data layer, building end-to-end AI features and orchestrating multi-agent workflows in a high-volume product environment.

You’ll design scalable systems, implement security and observability, and mentor the team while working remotely from the United States.

Qualifications

• 10+ years building and running production software.
• Hands-on experience shipping LLM-backed features and agent orchestration.
• Strong PHP (8.x) skills in a mature, high-traffic codebase.
• Deep AWS architecture with ECS, infrastructure as code and CI/CD.
• Relational database skills with MySQL and/or Aurora.
• Foundations in distributed systems, API design, observability, security.
• Clear written communication and sound judgment on AI tradeoffs.

Responsibilities

• Build AI features end to end — retrieval, context engineering, structured output, tool calls and evaluation harnesses.
• Design and operate agent orchestration systems and multi-step workflows with guardrails.
• Operate non-deterministic systems with tracing, evals, model versioning, and cost controls.
• Own ECS container platform operations—service definitions, autoscaling, blue/green deploys.
• Architect AWS infrastructure — serverless pipelines, IAM, network design, IaC.
• Build and extend PHP production surfaces integrating AI without destabilizing them.
• Drive database performance with schema design, indexing, migrations and query tuning.

Skills

PHP

AWS

CI/CD

Distributed systems

Tools

ECS

Terraform

CDK

MySQL

Aurora

Kubernetes

Job description

Porch Group is seeking a Senior Platform Engineer - AI Platform to lead AI-first platform work across production infrastructure. You will own the PHP application, AWS/ECS, and MySQL/Aurora data layer, building end-to-end AI features and orchestrating multi-agent workflows in a high-volume product environment.

You’ll design scalable systems, implement security and observability, and mentor the team while working remotely from the United States.