Senior Software Engineer, Backend – AI

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🕒 March 13

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Posh Properties

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2012

🏠 Real Estate

🏪 Marketplace

👥 B2C

Real Estate • Marketplace • B2C

Posh Properties is a real estate agency based in Delray Beach, Florida, specializing in residential properties across Palm Beach, Broward, and Miami-Dade counties. Founded in 2012 by Jerilyn Walter, the agency prides itself on its personal approach and commitment to customer service, catering to both buyers and sellers. With a dedicated team of knowledgeable agents, Posh Properties offers exclusive listings, home valuation services, and expert guidance throughout the buying and selling process.

📋 Description

• Design and Scale Backend Services: Build and maintain scalable backend services and APIs that power AI-driven features, writing production code primarily in Java, and Python. • Own Cloud Infrastructure: Define, deploy, and manage AI infrastructure using Terraform on a major cloud platform (AWS). Scale container-based solutions while ensuring reliability and performance. • Build Evaluation Pipelines: Create robust frameworks to evaluate AI system quality and continuously improve model performance. • Optimize for Cost, Latency, and Performance: Make pragmatic, business-aware decisions about the tradeoffs between model quality, response time, and infrastructure cost when working with managed AI services. • Integrate Across the Stack: Collaborate with core engineering by occasionally working in TypeScript (Node.js) to connect AI features into Posh's main application. • Support Agent Architecture: Build the backend systems and data flows that power our multi-step, autonomous AI workflows, ensuring they are reliable, observable, and scalable.

🎯 Requirements

• 3 to 6+ years of backend or full-stack engineering experience, with a track record of shipping high-quality, scalable systems in fast-paced environments. • Deep expertise in Python and its ecosystem for web services and data processing. • Strong experience with Infrastructure as Code (Terraform), a major cloud platform (GCP, AWS, or Azure), and deploying containerized applications. • Comfort operating in a 0→1 environment where you'll help define new patterns and practices for AI-native product development. • Bonus Points: Experience with managed AI services (Vertex AI, AWS Bedrock, etc.), working with LLMs in production, or building evaluation frameworks (RAGAs, LangSmith, DeepEval). Familiarity with agentic frameworks (LangGraph, CrewAI, Strands) or multi-agent system design. Background in MLOps, data engineering, or experience at consumer, marketplace, or event-driven platforms.

🏖️ Benefits

• Health,Dental and Vision Insurance • Equinox Membership • Unlimited PTO • Team Events, Dinners, & Offsites, Free Event Tickets to Dope Shows • New MacBook • Daily Uber Eats Credit • Relocation bonuses are available for some out-of-state candidates.