Senior Platform Engineer - AI Platform
New
P
Porch GroupHome inspection software
United States; RemoteFull-TimeSenior
Salary$168,800 – $236,300 annually
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Job Details
- Experience
- 10+ years building and running production software, with real ownership of systems at scale
- Required Skills
- AWSMySQLCI/CDTerraform
Requirements
- Bring 10+ years of experience building and running production software, with ownership of systems at scale.
- Have hands-on experience shipping LLM-backed features, including agent orchestration, RAG, evaluation, and their ongoing operation.
- Have strong PHP 8.x skills in a mature, high-traffic codebase.
- Bring deep AWS architecture experience and hands-on ECS operations experience.
- Have experience with infrastructure as code using Terraform or CDK, and CI/CD.
- Have expert-level relational database skills with MySQL and/or Aurora, including reading and acting on execution plans.
- Have strong fundamentals in distributed systems, API design, observability, and application security.
- Demonstrate clear written communication and sound judgment about tradeoffs, including when AI is not the right tool.
Responsibilities
- Build AI features end to end, including retrieval, context engineering, structured output, tool/function calling, and evaluation harnesses.
- Design and operate agent orchestration systems with multi-agent and multi-step workflows, tool routing, state and memory, retries, fallbacks, human-in-the-loop checkpoints, and guardrails.
- Operate non-deterministic systems using tracing, CI evaluations, prompt and model versioning, token and latency budgets, model routing, and cost controls.
- Own ECS container platform operations, including service definitions, task sizing, autoscaling, blue/green deployments, and orchestration for services and async workers.
- Architect AWS infrastructure for event-driven and serverless pipelines, IAM, and network design, managed as infrastructure as code.
- Build and extend services in the production PHP codebase, integrating AI capability into existing product surfaces.
- Improve database performance through schema design, indexing, replication and read scaling, zero-downtime migrations, and query performance work across MySQL and Aurora.
- Contribute through code review, design documents, mentorship, incident response, and on-call participation.
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