Note: The job is a remote job and is open to candidates in USA. Porch Group is a vertical software and insurance platform serving the home-buying and home services markets. The company is seeking a Senior Platform Engineer to lead AI-first platform development, including agentic systems, LLM features, and evaluation infrastructure. The role also owns PHP application services, AWS/ECS infrastructure, and MySQL/Aurora database performance and operations.
Responsibilities
- Build AI features end to end — retrieval, context engineering, structured output, tool/function calling, and evaluation harnesses that measure whether a change actually made things better
- Design and operate agent orchestration systems — multi-agent and multi-step workflows including task decomposition, tool routing, state and memory, retries and fallbacks, human-in-the-loop checkpoints, and guardrails against failure modes that don't look like exceptions
- 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 both 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 our 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
Skills
- 10+ years building and running production software, with real ownership of systems at scale
- Demonstrated, hands-on experience shipping LLM-backed features — not just API calls, but agent orchestration, RAG, evaluation, and the operational discipline to keep them working
- Strong PHP (8.x) skills in a mature, high-traffic codebase
- Deep AWS architecture experience with hands-on ECS operations, infrastructure as code (Terraform or CDK), and CI/CD
- Expert-level relational database skills with MySQL and/or Aurora — able to read an execution plan and act on it
- Strong fundamentals in distributed systems, API design, observability, and application security
- Clear written communication and sound judgment about tradeoffs, especially where AI is the wrong tool for the job
- At this time, Porch Group does not consider applicants from the following states or jurisdictions for Remote positions: Alaska, Delaware, Hawaii, Mississippi, Nebraska, Montana, New Hampshire, West Virginia, or the District of Columbia
- Nice to have: Go, MCP or comparable agent-tooling standards, vector search and embedding pipelines, Kubernetes, document and image extraction pipelines, or real estate/proptech/field-services domain experience
Benefits
- Eligible to receive long-term incentive awards, subject to program guidelines and approvals
- Three Medical plan options
- Two Dental plan options
- A Vision plan
- Voluntary Critical Illness, Hospital Indemnity and Accident plans
- A partially employer-funded Health Savings Account
- Employee Flexible Savings Accounts for healthcare, dependent care, and transportation
- Company-paid Basic Life and AD&D benefits
- Company-paid Short- and Long-Term Disability benefits
- Voluntary Life and AD&D plans
- Traditional and Roth 401(k) plans with a discretionary employer match
- Employer-paid Supportlinc wellbeing program for employees and their families, including on-demand guided meditation and mindfulness exercises, mental health coaching, clinical care, and confidential resources including will preparation
- Free LifeBalance resource for employees and their families, including year-round discounts on gym memberships, travel, appliances, movies, pet insurance, and more
- Flexible paid vacation
- Typically nine company-paid holidays per year
- Paid sick time
- Paid parental leave
- Identity theft program
- Travel assistance
- Fitness and other discount programs
Company Overview