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Open nowPosted 88 days ago

AI Systems Architect - LLM & Vector Infrastructure

Workable (global search)108,016 open roles

Where
Riyadh, Riyadh Province, Saudi Arabia
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Your applicationOpen nowAI Systems Architect - LLM & Vector InfrastructureWorkable (global search) · Riyadh, Riyadh Province, Saudi Arabia

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7.9% of postings close within 7 days. Measured by our own scanner across the market. Workable (global search) postings stay open a median of 7 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 7.9%7 days
  4. 14.9%14 days
  5. 34.0%30 days
This job: posted 88 days ago

Workable (global search) median: 7 days open

The posting

We are seeking a senior AI Systems Architect to design and implement AI-native application cores where Large Language Models (LLMs), vector databases, retrieval systems, and agent frameworks form the primary computational layer of our web and mobile applications.

This role is responsible for architecting scalable AI pipelines, retrieval-augmented generation (RAG) systems, memory architectures, AI agents, and orchestration workflows integrated with our development stack (Web, Mobile, n8n automation, and AI services).

The ideal candidate understands that AI is not a feature, it is the operating system of the product.

Key Responsibilities

1. AI Core Architecture Design

  • Design AI-first system architecture for web and mobile applications
  • Architect RAG pipelines using vector databases
  • Define long-term memory, short-term memory, and contextual state systems
  • Implement multi-agent AI systems
  • Design AI orchestration layers

2. Vector Database & Embedding Systems

  • Select and implement vector databases such as:
  • Pinecone
  • Weaviate
  • Qdrant
  • Milvus
  • Supabase (pgvector)
  • Optimize embedding strategies
  • Implement hybrid search (semantic + keyword)
  • Design scalable indexing pipelines

3. LLM Integration & Optimization

  • Work with models such as:
  • OpenAI APIs
  • Anthropic
  • Meta (LLaMA)
  • DeepSeek
  • Alibaba (Qwen)
  • Implement structured output pipelines
  • Design evaluation and prompt testing frameworks
  • Optimize cost-performance ratio

4. AI Agent Systems & Orchestration

  • Build autonomous AI agents
  • Design tool-calling systems
  • Integrate with:
  • n8n
  • LangGraph / LangChain style agent flows
  • Implement memory-aware agents

5. Production AI Engineering

  • Build monitoring systems for hallucination detection
  • Design guardrails and validation layers
  • Implement evaluation datasets and benchmarking
  • Ensure security of AI pipelines
  • Build scalable infrastructure (Docker, Kubernetes, GPU optimization)

Requirements

Technical Expertise

  • 5+ years software engineering experience
  • 2+ years building production AI systems
  • Deep knowledge of:
  • Vector embeddings & similarity search
  • RAG architectures
  • Tokenization and context window optimization
  • Fine-tuning & LoRA concepts
  • Prompt evaluation frameworks
  • Experience with Python (mandatory)
  • Experience with FastAPI / backend services
  • Experience designing scalable APIs

Architecture Experience

  • Designing distributed systems
  • Microservices & event-driven architecture
  • Experience with PostgreSQL + pgvector
  • Experience deploying LLM systems in production
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