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# AI Systems Engineer

- **Company:** SAGACIFY
- **Location:** Brussel, Belgium (Remote available)
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** LangGraph Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon S3, Automation of Tests, Microsoft Azure, Cloud Computing, Continuous Integration, Cursor, DevOps, Identity and Access Management, Python (Programming Language), Machine Learning, Open Source Technology, Microsoft Copilot, TypeScript, Management of Software Versions, LangChain, Retrieval-Augmented Generation, Flask (Web Framework), Large Language Models, Claude Code, Prompt Engineering, Generative AI, AI Coding Agents, Langfuse — LLM Observability and Analytics Platform, Fastapi, Amazon Relational Database Service, AI Platforms, Attention Mechanisms, Kubernetes, Low Latency, HuggingFace, Machine Learning Operations, Drift Detection, Api Design, Amazon Simple Queue Service (SQS), Docker
- **Published:** November 6, 2026
- **Apply:** https://www.adzuna.be/details/5954451876

## About the Role

We're on the lookout for a Mid-Level AI Systems Engineer who bridges AI engineering and MLOps. Someone who loves getting hands-on with LLMs, agents, and RAG pipelines, and who cares just as much about what happens once a model reaches production as about building it in the first place. In this role, you'll design, build, deploy, and operate production-grade AI systems, with a strong focus on generative AI, LLM-based applications, and reliable machine learning operations. In practice your time is split roughly between 60-70% AI Engineering and 30-40% MLOps., * TypeScript

 * Azure
 * AI-native engineering workflows: hands-on experience using AI coding agents and AI-assisted development environments (Cursor, Claude Code, Windsurf, Copilot, etc.), including context engineering, subagent orchestra…

About you :

 * You have 3 to 5 years of experience in AI/ML engineering or related fields
 * You have a solid understanding of LLM fundamentals: Transformers, attention mechanisms, generation parameters and fine-tuning approaches
 * You have strong problem-solving ability and algorithmic creativity
 * You communicate clearly with both technical and non-technical stakeholders
 * You have a team spirit and enjoy collaborating across multiple roles
 * You bring rigour, responsiveness and a good incident-handling mindset
 * You're autonomous, curious, and quick to learn new tools
 * You can communicate fluently in Dutch, English and French, or at least the first two languages

Don't worry if you don't tick every single box, what matters most is the right mindset and a drive to learn. If you think we're a match, we'd love to hear from you.

## Description

In this role you sit at the intersection of engineering and operations, working across teams and disciplines. You'll report to the Head of ML at Sagacify and collaborate with the wider Sagacify and Craftzing delivery organisation. A role that can naturally grow towards a Team Lead position over time., * Orchestrate AI system components: LLMs, vector databases, APIs, orchestration layers, and user interfaces

 * Develop autonomous agents and conversational systems that can plan actions and interact with external tools or APIs
 * Build and optimise RAG pipelines connecting enterprise data sources to LLMs for grounded, contextualised, reliable answers
 * Evaluate system quality through generative AI metrics, coherence tests, and production monitoring (latency, API costs, bias)
 * Deploy and scale solutions with strong attention to latency, security, reliability and cost efficiency
 * Keep an eye on the ecosystem for new models, frameworks and techniques, including open-source tools such as LangChain, LangGraph, Langfuse, etc.
 * Perform prompt and context engineering to improve output quality, reduce hallucinations, and manage conversational state effectively

MLOps (30-40%)

 * Build and maintain automation for model deployment, including CI/CD pipelines and automated testing
 * Continuously monitor model performance in production, including drift detection and quality metric tracking
 * Manage updates of libraries, models, and related dependencies in production environments
 * Ensure versioning, reproducibility and safe rollout of models and AI services
 * Collaborate closely with ML engineers, developers, DevOps and infrastructure teams for smooth delivery
 * Stay current with the latest MLOps practices, tools and platform components

You stay in the code, you stay curious about what happens after deployment, and you keep learning as you go.

What you'll work with :

Core technologies :

 * Python
 * OpenAI API, Hugging Face Transformers
 * LangChain, LangGraph, Langfuse
 * FastAPI or Flask, Docker, Kubernetes, CI/CD pipelines
 * Cloud GPU
 * AWS (S3, SQS, IAM, RDS, etc.)
 * Cursor