AI Architect (Python & Chatbot & AWS Enterprise Solutions)
Location: Hybrid – Brussels, Belgium
Employment Type: Permanent
Seniority: Senior / Lead
Department: Data & AI
About The Role
As an AI Architect, you will make an impact by designing, building, and scaling production‑grade GenAI systems with Python at the core and AWS platforms. You will be a valued member of the Data & AI team and work collaboratively with product, data, and platform teams to translate business goals into robust AI solutions that deliver measurable outcomes.
In This Role, You Will
Define reference architectures for RAG pipelines and agentic systems, ensuring safety and reliability.
Lead end‑to‑end design and implementation of AI/ML systems, including model selection, training, and deployment.
Leverage AWS AI/ML services (Amazon Bedrock, SageMaker, Lambda, S3, EC2, EKS) for cloud‑native solutions.
Architect conversational AI (chatbot) capabilities with RAG and LLM fine‑tuning strategies.
Establish observability and evaluation frameworks for LLM Ops, including tracing and monitoring.
Work Model
We believe hybrid work is the way forward. Based on this role’s business requirements, this is a hybrid position requiring regular presence in Brussels, Belgium.
What You Need To Have To Be Considered
15+ years in technical roles, with 5+ years in enterprise‑scale AI/ML solution design.
Expert in Python (typing, async, packaging), FastAPI/Flask, and API design.
Hands‑on delivery of RAG systems and agentic workflows.
Strong experience with AWS/Azure/GCP for AI workloads, containers, and Kubernetes.
Solid grounding in security & compliance (IAM, PII handling, audit logging).
These Will Help You Stand Out
Experience with agent frameworks (CrewAI, AutoGen, LangGraph).
Familiarity with observability tools for LLMs (LangSmith, Langfuse, Arize Phoenix).
Knowledge of prompt engineering patterns and safety techniques.
Certifications in AWS GenAI, Azure AI, or GCP ML/GenAI.
What We Offer (Belgium)
Health insurance, life cover, and pension plan.
Car or mobility budget, work‑from‑home allowance.
32 vacation days, luncheon vouchers, EcoCheques.
Laptop, mobile phone with subscription.
Travel insurance and entertainment cost coverage.
Contact the Recruiter
Lucia Velasco
Lucia.Velasco@cognizant.com
+32 493 89 16 33
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