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AI Architect

00067215281

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
[email protected]
+32 493 89 16 33

About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.

Additional employment information

Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] for roles based in the Americas or [email protected] for roles based in India.

Benefits that help you thrive and grow

Our benefits program is built with you in mind—so you can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

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Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

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Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations—and build the skills you need to grow your career.

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Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

Your path to Cognizant

Here’s a peek at our hiring process. Keep in mind that not every candidate advances through each step and the process may vary by role and location. Learn more in our candidate FAQs.

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Step 1: Apply to the right opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

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Step 2: Connect with your recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

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Step 3: Show off your skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

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Step 4: Decision time

Our team will then review each candidates’ potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us—but you can count on us to keep you updated.

1 (2)
Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.
Debashish Mishra SAP MM Developer
2
Cognizant offers me more than a job; it offers a community. We support each other, collaborate across borders and celebrate wins together. If you’re looking for a culture that values flexibility, diversity and growth, this is the place to be.
Laura Reynaud Lead Counsel
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When I first joined, I was quiet and hesitant to share my thoughts. The leadership programs and the mentoring I’ve received have helped me find my voice and grow as a leader.
Sujatha Gopalakrishnan Portfolio Delivery Lead
4
I’ve had the chance to work on impactful projects and shadow colleagues, all while getting involved in internal initiatives. The world is your oyster at Cognizant—you just need to take advantage of it!
Lucas Hoffman Consultant

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