Senior AI Platform Engineer

Koda Tech; Antwerpen; On-site; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Competitive salary

Comprehensive benefits package

Career progression

Modern working environment

Job summary

Koda Tech in Belgium is seeking a Senior AI Engineer to join a new AI Engineering team responsible for building the core intelligence layer powering AI applications, assistants and autonomous agents. This hands-on role focuses on production-grade AI systems rather than research.

You will design central AI services for reasoning, retrieval and action, collaborate across architects, software engineers and AI specialists, and contribute to a secure, scalable AI ecosystem with governance and

Qualifications

• 5+ years of commercial software engineering experience.
• 2+ years building and deploying AI or LLM-based applications in production environments.
• Strong Python development experience, ideally with FastAPI or similar frameworks.
• Experience with agentic AI frameworks such as LangChain, LangGraph, CrewAI or similar.
• Strong knowledge of Retrieval-Augmented Generation (RAG) architectures.
• Experience working with embeddings, vector databases and semantic search technologies.
• Understanding of prompt engineering, evaluation frameworks and LLM optimisation techniques.
• Experience deploying applications using containers and cloud-native technologies.
• Knowledge of software engineering best practices including testing, CI/CD and observability.
• Strong communication skills and the ability to work within cross-functional teams.
• Experience within financial services or other regulated environments.
• Understanding of AI security concepts including prompt injection, data protection and responsible AI.
• Experience with Elasticsearch, OpenSearch or vector database technologies.
• Knowledge of Kubernetes, OpenShift or container orchestration platforms.
• Experience building enterprise-grade AI platforms or internal AI products.

Responsibilities

• Design and develop agent-based AI systems using modern orchestration frameworks.
• Build and optimise Retrieval-Augmented Generation (RAG) pipelines using vector search and enterprise knowledge sources.
• Develop scalable backend services in Python and FastAPI.
• Implement AI governance, security controls and guardrails to ensure safe and responsible AI usage.
• Engineer integrations with multiple Large Language Models and AI providers.
• Develop evaluation frameworks, automated testing and monitoring solutions for AI applications.
• Create tooling for prompt management, model routing and AI service management.
• Collaborate with software engineering, architecture and product teams to translate AI concepts into production-ready solutions.
• Improve performance, reliability and scalability of AI services running in containerised environments.
• Contribute to architectural decisions and establish engineering best practices within the AI platform.

Skills

Python development

FastAPI

LangChain

LangGraph

CrewAI

LLM integration

RAG architectures

Embeddings

Vector databases

Prompt engineering

CI/CD

Observability

Cross-functional teamwork

Regulated environments

Kubernetes/OpenShift

Tools

Elasticsearch/OpenSearch

Container orchestration

Job description

Koda Tech in Belgium is seeking a Senior AI Engineer to join a new AI Engineering team responsible for building the core intelligence layer powering AI applications, assistants and autonomous agents. This hands-on role focuses on production-grade AI systems rather than research.

You will design central AI services for reasoning, retrieval and action, collaborate across architects, software engineers and AI specialists, and contribute to a secure, scalable AI ecosystem with governance and