Conversational AI & LLM Expert

Aubay Belgium; Belgique; Sur place; EUR 70 000 - 100 000; Plein temps

Avantages offerts par ce poste

Meal vouchers

Insurance

13th & 14th month

Transport subscription

Company car

Résumé du poste

Aubay Belgium seeks a Conversational AI & LLM Expert to design, deploy and optimize conversational AI and LLM solutions within a public sector context.

You will collaborate with cross‑functional teams to improve user journeys, ensure security and governance, and integrate AI services into the IT ecosystem. The role offers both permanent and freelance long‑term contracts, with a competitive salary package.

Qualifications

• Proven experience in chatbot, AI, UX, and LLM projects.
• Knowledge of Python, LangChain, REST APIs, Java/Spring Boot, and Git.
• Experience with cloud architectures, microservices, CI/CD, Docker, and OpenShift.
• Knowledge of NLP, Prompt Engineering, RAG, vector search, and AI governance.
• Strong communication skills in English; Dutch and/or French are a plus.
• Familiarity with Agile/Scrum methodologies.

Responsabilités

• Design and implement chatbots and conversational AI solutions.
• Develop and integrate LLMs, RAG architectures, and AI APIs.
• Contribute to conversational UX design and improve user journeys.
• Ensure security, governance and GDPR compliance for AI solutions.
• Implement DevOps, CI/CD, monitoring and operational practices for AI services.
• Produce technical documentation, recommendations and reports.

Connaissances

Conversational AI

UX design

LLM projects

Agile/Scrum

English communication

Outils

Python

LangChain

REST APIs

Java/Spring Boot

Git

Docker

OpenShift

Description du poste

AI / LLM / Chatbots / RAG / Conversational AI / Public Sector

On behalf of our client operating in the public sector, we are recruiting a Conversational AI & LLM Expert for a long-term assignment.

As a Conversational AI & LLM Expert, you will be responsible for designing, deploying, and optimizing conversational AI and LLM solutions, ensuring high standards of quality, security, user experience, and integration within the broader IT ecosystem.

You will collaborate with multidisciplinary teams to develop innovative AI solutions, improve conversational user journeys, and ensure that AI services are reliable, secure, and aligned with business and technical requirements.

Tasks:

Here are the main tasks you'll be involved in:

• Design and implement chatbots and conversational AI solutions.
• Develop and integrate LLMs, RAG architectures, and AI APIs.
• Contribute to conversational UX design and continuously improve user journeys.
• Ensure security, governance, and compliance, including GDPR and Responsible AI principles.
• Implement DevOps, CI/CD, monitoring, and operational practices for AI solutions.
• Produce technical documentation, recommendations, and reports.
• Collaborate closely with business, architecture, infrastructure, development, and support teams.
• Contribute to the continuous improvement and evolution of conversational AI solutions.

Profile:

• Proven experience in chatbot, AI, UX, and LLM projects.
• Good knowledge of Python, LangChain, REST APIs, Java/Spring Boot, and Git.
• Experience with cloud architectures, microservices, CI/CD, Docker, and OpenShift.
• Knowledge of NLP, Prompt Engineering, RAG, vector search, and AI governance.
• Strong knowledge of Agile/Scrum methodologies.
• Strong communication (English with Dutch and/or French), analytical, and technical writing skills.

What we offer

We offer Permanent contracts as well as Freelancing contracts for long-term missions. Employees are offered a full salary package in line with the market and including many incentives (meal vouchers, insurances, 13th & 14th month, transport subscription and/or company car, etc.).

We care about your satisfaction by following up your mission and supporting you with the highest attention.

Therefore, with Aubay, Employees or Freelancers are equally considered as part of the company!

About us

Aubay is an international IT services agency founded in 1998 that advises companies on their digital transformation. We are active in 7 European countries (France, Belgium, Luxembourg, Spain, Portugal, Italy, U.K.) and our offices are based in Brussels, Namur, and Luxembourg (Belux Area).

Any question? Feel free to contact us at