Senior AI Engineer — AI-First Systems Builder

Durbanville Classifieds; Cape Town; On-site; ZAR 900,000 - 1,500,000; Full time

Job summary

IGrow Wealth Investments Group of Companies seeks a Senior AI Engineer to design and build AI-first applications and agentic systems in Durbanville, Cape Town. You will integrate AI into real business workflows, bridging conventional software engineering with AI engineering and guiding architectural decisions.

You will work across backend, AI systems and data architectures, leveraging LLMs, embeddings and vector databases to create robust, production-grade software with limited supervision.

Qualifications

• Advanced Node.js development in production environments.
• Strong TypeScript skills for backend services.
• Experience in designing scalable APIs and data models.
• Solid PostgreSQL knowledge and query optimization.
• Practical understanding of LLMs and AI application development.
• Familiarity with embeddings, semantic search and vector storage.
• Experience with vector databases or pgvector.
• Knowledge of graph databases and knowledge graphs.
• Understanding of agentic AI and tool calling workflows.
• Experience integrating systems and APIs.
• Comfort with asynchronous processing and event-driven architectures.
• Proficiency with Git and modern software practices.
• Experience using AI coding agents in production development.
• Exposure to AWS, Docker and related tech stacks.
• Familiarity with OAuth/OIDC and IaC.

Responsibilities

• Build production AI applications and agentic systems using Node.js and TypeScript.
• Design backend services, APIs, and event-driven architectures.
• Develop agentic workflows where AI agents use tools and data to complete tasks.
• Work with multiple LLM providers, model selection, and context management.
• Design AI memory and knowledge systems for organisations.
• Work with PostgreSQL schemas, complex queries and production data architecture.
• Implement embeddings, semantic search, and vector retrieval (pgvector / vector DBs).
• Understand graph data and relationships across people, systems, processes and documents.
• Integrate internal and external systems via APIs and MCP interfaces.
• Build durable long-running AI processes with scheduled events and approvals.
• Adopt AI coding agents in development with strong testing and code review.

Skills

Node.js

TypeScript

Backend design

PostgreSQL

Relational data modelling

LLMs

Embeddings

Vector search

Vector databases

Graph databases

Agentic AI

APIs

Asynchronous processing

Git

AI coding agents

AWS

Docker

CI/CD

OAuth/OIDC

Tools

pgvector

Neo4j

AWS

Docker

Job description

IGrow Wealth Investments Group of Companies seeks a Senior AI Engineer to design and build AI-first applications and agentic systems in Durbanville, Cape Town. You will integrate AI into real business workflows, bridging conventional software engineering with AI engineering and guiding architectural decisions.

You will work across backend, AI systems and data architectures, leveraging LLMs, embeddings and vector databases to create robust, production-grade software with limited supervision.