Senior Platform Engineer - AI Platform
About The Position
Porch Group is hiring a Senior Platform Engineer for ISN to lead AI-first platform work at the intersection of agentic systems and production infrastructure. The role designs and ships systems that enable agents and large language models to support high-volume product workflows, including scheduling, report intake, customer communication, billing, and data extraction. The engineer will also own the underlying PHP application, AWS/ECS infrastructure, and MySQL/Aurora data layer, with latitude to define how AI is used at ISN. The position is remote in the United States, subject to state and jurisdiction restrictions. The application window is anticipated to close 10 business days after November 9, 2026, though it may change based on business and interviewing needs.
Requirements
- 10 or more years of experience building and running production software, with ownership of systems at scale.
- Hands-on experience shipping LLM-backed features, including agent orchestration, retrieval-augmented generation (RAG), evaluation, and operational practices for maintaining these systems.
- Strong PHP 8.x skills in a mature, high-traffic codebase.
- Deep AWS architecture experience, including hands-on ECS operations, infrastructure as code using Terraform or CDK, and CI/CD.
- Expert-level relational database skills with MySQL and/or Aurora, including the ability to read and act on execution plans.
- Strong fundamentals in distributed systems, API design, observability, and application security.
- Clear written communication and sound judgment about tradeoffs, including recognizing when AI is not the right tool.
Nice To Haves
- Experience with Go.
- Experience with MCP or comparable agent-tooling standards.
- Experience with vector search and embedding pipelines.
- Experience with Kubernetes.
- Experience with document and image extraction pipelines.
- Experience in real estate, proptech, or field-services domains.
Responsibilities
- Build end-to-end AI features using retrieval, context engineering, structured output, tool and function calling, and evaluation harnesses.
- Design and operate agent orchestration systems for multi-agent and multi-step workflows, including task decomposition, tool routing, state and memory, retries and fallbacks, human-in-the-loop checkpoints, and guardrails.
- Operate non-deterministic systems with tracing, evaluations in CI, 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 of long-running services and asynchronous workers.
- Architect AWS infrastructure, including event-driven and serverless pipelines, IAM and network design, and infrastructure as code.
- Build and extend services in the production PHP codebase, integrating AI capabilities into existing product surfaces while maintaining stability.
- Improve database performance at scale through schema design, indexing, replication and read scaling, zero-downtime migrations, and query performance work across MySQL and Aurora.
- Contribute through code review, design documentation, mentorship, incident response, and on-call participation.
Benefits
- Long-term incentive awards, subject to program guidelines and approvals.
- Three medical plan options, two dental plan options, and a vision plan.
- Voluntary critical illness, hospital indemnity, and accident plans.
- Pre-tax savings options, including a partially employer-funded Health Savings Account and healthcare, dependent care, and transportation Flexible Spending Accounts.
- Company-paid Basic Life and AD&D, and Short- and Long-Term Disability benefits; voluntary Life and AD&D plans are also available.
- Traditional and Roth 401(k) plans with a discretionary employer match.
- Employer-paid wellbeing program with guided meditation, mindfulness exercises, mental health coaching, clinical care, and confidential resources including will preparation.
- Free LifeBalance resource offering year-round discounts, including gym memberships, travel, appliances, movies, and pet insurance.
- Flexible paid vacation, typically nine company-paid holidays per year, and paid sick time.
- Paid parental leave.
- Identity theft program, travel assistance, and fitness and other discount programs.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
