Senior AI Engineer

We are seeking an experienced Senior AI Engineer with 6+ years of software engineering experience to play a pivotal role in our team.

This hybrid role combines expert-level software engineering with advanced AI development and system architecture. You will lead the design and implementation of autonomous AI agents, complex reasoning workflows, and Retrieval-Augmented Generation (RAG) systems using LangChain and modern LLM tooling.

Skills and expertise required:

• IT Degree in Computer Science, Engineering, or related field
• 6+ years of general Software Engineering experience
• Demonstrated technical leadership in delivering complex systems
• Proven portfolio or track record of LLM-based applications or AI agents
• Expert proficiency in Python (mandatory)
• Deep, production-grade experience with LangChain
• Strong proficiency with LangGraph for multi-agent orchestration (highly desirable)
• Advanced experience with vector databases (Pinecone, Weaviate, Qdrant, pgvector), including indexing and optimization
• Strong understanding of RAG vs fine-tuning trade-offs, context window management, and inference cost/latency optimization
• Experience working with GPTs, Claude, and/or local LLMs

Backend and infrastructure:

• Expert-level API development using FastAPI or Flask, including asynchronous patterns
• Advanced PostgreSQL expertise (schema design, query optimization); understanding of NoSQL consistency models
• Deep experience designing and deploying scalable systems on AWS (Bedrock, SageMaker, Lambda, ECS) or Azure
• Advanced Docker and container orchestration skills (Kubernetes or ECS)
• Proficiency with Infrastructure as Code (Terraform, AWS CDK, or CloudFormation)

Software Engineering and architecture:

• Expert knowledge of algorithms, data structures, and system design
• Strong experience with microservices, event-driven architectures, and SOLID principles
• Ability to guide frontend integration using React, Vue, or Angular
• Championing engineering standards, testing strategies (Pytest), code reviews, and system reliability
• Mastery of Git, CI/CD pipelines, and collaborative workflows
• Flexibility to take up different tasks in the team and be a team player

Reference number for this position is GZ60986 which is a permanent Hybrid position based in Pretoria offering a cost to company salary of R1.1m pa negotiable on experience and ability. Contact Garth on az.oc.egrem-e@zhtrag or call him on 011 463 3633 to discuss this and other opportunities.

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Posted on 21 Jan 13:51, Closing date 22 Mar