Senior AI Platform Engineer - Remote & Scalable Infra

Porch.com, Inc.

Washington

Hybrid

USD 169,000 - 236,000

Full time

14 days+

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Benefits offered by this job

Health insurance

401(k) with employer match

Paid time off

Job summary

Porch Group is seeking a Senior Platform Engineer to lead AI-first platform work at the intersection of agentic systems and production infrastructure. You will own the PHP application, AWS/ECS, and MySQL/Aurora data layer while shipping end-to-end AI features across scheduling, billing, and data extraction.

Ideal candidates have 10+ years building production software, deep PHP/8.x expertise, and hands-on experience with LLM-backed systems.

Qualifications

10+ years building and running production software at scale.
Hands-on experience shipping LLM-backed features, including agent orchestration and evaluation.
Strong PHP (8.x) skills in a high-traffic codebase.
Deep AWS architecture with ECS, infrastructure as code (Terraform or CDK), and CI/CD.
Expert relational database skills with MySQL and/or Aurora.
Strong fundamentals in distributed systems, API design, observability, and application security.
Clear written communication and sound judgment about AI tradeoffs.
Nice to have: Go, MCP or comparable agent-tooling standards, vector search/embedding pipelines, Kubernetes, document and image extraction pipelines, or real estate/proptech/domain experience.

Responsibilities

Build AI features end to end — retrieval, context engineering, structured output, tool/function calling, and evaluation harnesses.
Design and operate agent orchestration systems — multi-agent and multi-step workflows with task decomposition, tool routing, state and memory, retries and fallbacks, human-in-the-loop checkpoints, and guardrails.
Operate non-deterministic systems responsibly — tracing, evals in CI, prompt and model versioning, token and latency budgets, model routing, and cost controls.
Own ECS container platform operations — service definitions, task sizing, autoscaling, blue/green deploys, and orchestration for long-running services and async workers.
Architect AWS infrastructure — event-driven and serverless pipelines (Lambda, SQS/SNS/EventBridge), IAM and network design, all managed as infrastructure as code.
Build and extend services in production PHP codebase, integrating AI capability into existing product surfaces without destabilizing them.
Drive database performance at scale — schema design, indexing, replication and read scaling, zero-downtime migrations, and query performance work across MySQL and Aurora.
Raise the bar across the team through code review, design docs, mentorship, incident response, and on-call participation.