Full Stack Engineer — AI Commerce Platform
Required skills
3+ years full-stack development experience, AI model cognition (LLM capabilities, cost structure, API protocols), AI model aggregation cognition (API Gateway/Proxy/Router, load balancing, failover, cost optimization), AI intelligent routing/Commerce cognition (decision systems, compute commoditization), low-latency decision system experience, Go or Python backend + Next.js/React frontend, Redis + PostgreSQL, SaaS billing/subscription/payment system integration, cloud-native/containerized deployment and operations.
Preferred skills
AI model routing/model scheduling/compute scheduling experience, recommendation system/ad engine/e-commerce trading system experience, multi-model API gateway/LLM Proxy development experience, Multi-Armed Bandit/A/B testing framework design experience, e-commerce/payment/billing system experience, SLA 99.9%+ system operations experience, open-source project contributor (GitHub 500+ stars).
Technologies
Go, Python, Next.js, React, Redis, PostgreSQL, OpenAI, Anthropic, Google, domestic models, microservices, caching, circuit breakers, database transactions, cloud-native, containers.
Responsibilities
Design and implement multi-strategy AI model routing engine for optimal request-to-model matching with low latency and auditability, build multi-level compute pricing and billing engine for refined cost accounting and anti-arbitrage mechanisms, microservices architecture deployment and optimization, cache and circuit breaker design, database transaction guarantees, high-availability architecture and automatic failover, integrate mainstream AI model capability evaluation data with platform user feedback aggregation and real-time price caching/synchronization, cold start optimization, stress testing verification, online learning and real-time statistics.
Seniority
Mid-Senior (3+ years experience required).
Domain
AI Commerce, Full Stack Engineering, Cloud Infrastructure, Billing Systems.