Solutions Architect - AI

At Five Below our growth is a result of the people who embrace our purpose: We know life is way better when you are free to Let Go & Have Fun in an amazing experience, filled with unlimited possibilities, priced so low, you can always say yes to the newest, coolest stuff! Just ask any of our over 35,000 crew members who work at Five Below and they’ll tell you there’s no other place like it. It all starts with our purpose and then, The Five Below Way, which is our values and behaviors that each and every crew member believes in. It’s all about culture at Five Below, making this a place that can inspire you as much as you inspire us with big ideas, super energy, passion, and the ability to make the workplace a WOWplace! Key Responsibilities 1. AI Architecture & Strategy Define and own the enterprise AI architecture for retail use cases, aligning with business priorities and technology strategy. Develop reference architectures, patterns, and standards for AI/ML and Generative AI solutions, with an emphasis on open-source-first design principles. Translate retail business problems — across merchandising, supply chain, stores, marketing, and e-commerce — into scalable AI solution blueprints. Partner with business and product leaders to identify and prioritize high-impact AI opportunities. Champion open-source AI frameworks and tooling (e.g., Hugging Face, LangChain, LlamaIndex, Ray, MLflow, Feast) as the default approach before evaluating commercial alternatives. 2. Open-Source AI Architecture Lead the selection, evaluation, and integration of open-source AI and ML frameworks into Company’s enterprise architecture. Design reusable patterns for open-source LLM deployment, fine-tuning, and serving (e.g., vLLM, Ollama, llama.cpp, OpenLLM). Establish governance standards for open-source model usage, including licensing review, security scanning, and model provenance tracking. Build internal capability around open-source foundations to reduce vendor lock-in and accelerate experimentation velocity. Evaluate and adopt emerging open-source agentic frameworks (e.g., AutoGen, CrewAI, LangGraph) for retail automation use cases. 3. AI Solutioning & Design Architect end-to-end AI solutions, including data ingestion, feature engineering, model training, inference, and system integration. Design AI systems for core retail domains such as: Search, recommendations, and personalization Demand forecasting, inventory optimization, replenishment, and allocation Pricing and markdown optimization AI assistants and copilots for store, merchandising, and supply-chain teams Define integration patterns between AI services and retail platforms (POS, OMS, WMS, CRM, e-commerce). Lead architectural reviews, ensuring solutions meet performance, scalability, security, cost, and reliability requirements. 4. AI Observability Define and implement an AI observability framework covering model performance monitoring, data drift detection, prediction quality tracking, and system health across all production AI systems. Establish real-time and batch monitoring pipelines for model inference using tools such as Evidently AI, Arize, WhyLogs, Fiddler, or equivalent open-source platforms. Design standardized dashboards and alerting for model degradation, data skew, latency SLO breaches, and feature store anomalies. Build feedback loop infrastructure to capture ground-truth labels and enable continuous model evaluation in production. Define observability standards for GenAI and LLM systems, including hallucination rate tracking, prompt/response logging, latency percentiles, and cost-per-query attribution. Partner with MLOps and Platform Engineering to embed observability as a first-class requirement in every AI system from Day 1. 5. AI Security Serve as the AI security authority for Company, owning the threat model for all AI and ML systems in production. Define and enforce secure-by-design standards for model development, training data handl…

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