AI Engineer

Full-Time & Remote
Rep is the first AI-powered Concierge (sales chatbot) for eCommerce. It proactively approaches disengaged site visitors and offers shopping assistance for everyone. As a result, Rep sells more stuff and handles up to 90% of all support requests.

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We are looking for a talented AI Engineer to join our AI development team. As part of our core AI team, you will play a key role in building and optimizing AI agents, web crawling pipelines, prompt engineering systems, caching strategies, and the data infrastructure that powers our conversational AI platform. You will work on designing and developing scalable AI agents using the OpenAI Agents SDK, implementing sophisticated web scraping systems to build knowledge bases, optimizing Redis caching for real-time performance, querying massive datasets with AWS Athena/SQL, and building RAG systems that enable our AI to deliver accurate, context-aware responses.

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The role extends beyond traditional AI development and includes building intelligent web crawlers for content extraction, implementing multi-layer caching strategies for sub-second response times, writing complex SQL queries for analytics and data retrieval, designing agent orchestration systems, implementing RAG (Retrieval Augmented Generation) pipelines, optimizing embeddings and vector search, and prompt engineering at scale. Given our need for real-time, high-quality AI interactions across hundreds of merchants, web scraping reliability, cache hit rates, query performance, response quality, and cost efficiency are critical.

Requirements
Strong problem-solving skills and a team player mentality
3+ years of experience developing AI/ML systems with Python
Over 90% of your code is written by Claude Code, Cursor, etc.
Strong experience with web scraping and content extraction (BeautifulSoup, requests, async HTTP clients)
Proven experience with Redis or similar caching systems for high-performance applications
Solid SQL skills (preferably AWS Athena)
Deep hands-on experience with LLM APIs (OpenAI, Anthropic, or similar)
Proven experience building production AI agents or conversational AI systems
Experience with prompt engineering and instruction optimization techniques
Strong understanding of RAG (Retrieval Augmented Generation) architecture
Experience with vector embeddings and similarity search (OpenAI, Cohere, or similar)
Strong experience with FastAPI REST APIs, async Python (asyncio, aiohttp), and concurrency patterns (multiprocessing, ThreadPool)
Experience with AWS cloud services (S3, Lambda, Bedrock preferred)
Will be even better if you have
Advanced Redis patterns (pub/sub, streams, distributed caching)
Experience with OpenAI Agents SDK or similar agentic frameworks
Experience building multiagent systems with tool calling capabilities
Experience with conversation state management and context caching
Knowledge of embedding models and vector database optimization
Experience with web scraping and content extraction for RAG pipelines
Experience with AI cost optimization and token management
Experience in ecommerce AI applications
Familiarity with AI observability and logging systems
Experience with A/B testing AI prompts and agent behaviors
Why join Rep AI?
Work on cutting-edge AI agent technology, solving real e-commerce problems
Shape the future of conversational AI for e-commerce
Fast-paced startup environment with significant impact
Work with modern AI tools and be at the forefront of LLM technology

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Location: Israel
Employment Type: Full-time
Experience Level: Mid to Senior (3+ years)
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Fluent English level
Critical thinker and problem-solving skills
Good time-management skills
Great interpersonal and communication skills
Team player
You will get

Supportive team environment, flexible schedule. Add to that a competitive salary, best-in-class benefits package, which includes medical, life, dental & vision, 401(k) with company match, paid time off, and career growth opportunities