Hostaway
Emea
Senior Backend Engineer (Core Team) - AI-Powered Vacation Rental Platform
- AI
- AWS
- Cloud
- DDD
AI Summary
Build and maintain the AI platform for Polygon Labs, focusing on agentic workflows, guardrails, and observability. Requires 5+ years of software engineering experience, hands-on AI agent development, and system design expertise. Must ship LLM-based systems to production and automate repetitive processes.
Key Responsibilities
Develop and deploy AI agent workflows in production with SLAs
Design and manage MCP servers with security and authentication
Build autonomous agents with tool use and guardrails
Create evaluation frameworks and observability dashboards
Track AI spend and optimize costs across providers
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Technical Skills Required
Benefits & Perks
Remote first global workforce
Industry leading Medical, Dental and Vision health insurance
Company matching 401k with 3% match
$1,500 Home Office Set Up Allowance (lifetime max)
$200 Annual Book Allowance Program
$75 Monthly internet or phone reimbursement
Flexible Time Off
Company issued laptop
Egg freezing, mental health, and employee wellness benefits
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Nice to Have
Cryptocurrency/blockchain payments experience
Experience with Okta, SAML/OIDC, and SCIM provisioning
Familiarity with GitHub Apps, service accounts, and secret managers
Job Description
About Polygon Labs
Polygon Labs is a global blockchain payments company building infrastructure to move money instantly, reliably, and at internet scale. It is building the Polygon Open Money Stack, an open and integrated stack of services and technologies to instantly and reliably move money anywhere.
AI Platform Engineer
About The Role
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