Senior Python Back-End Engineer – Conversational AI & Generative AI (AWS / LLM / RAG)
Role Context
We are currently hiring for our client in the banking industry , a leading European financial institution with a strong focus on digital transformation and AI innovation . The organization is investing heavily in Generative AI, conversational platforms, and cloud-native solutions to enhance internal services across HR, Facilities, Marketing & Communications, and other business domains.
Role Summary
We are looking for a Senior Python Back-End Engineer with strong experience in AWS, AI-driven applications, and backend development .
You will design and build scalable backend services for conversational AI solutions , leveraging Generative AI, LLMs, and RAG architectures in a secure AWS environment. The role combines backend engineering, cloud integration, and AI solution development , in close collaboration with business stakeholders, architects, and data science teams.
Key Responsibilities
- Translate business requirements into technical AI and backend solutions
- Design and develop Python-based backend services and REST APIs
- Build and deploy RAG-based and Generative AI applications using AWS Bedrock and LLMs
- Work with AWS services (S3, analytics, integration tools, etc.)
- Implement and maintain CI/CD pipelines and DevOps practices
- Perform testing, code reviews, debugging, and production support
- Ensure system integration across multiple applications and platforms
- Collaborate with data scientists, architects, and cloud teams
- Contribute to chatbot and conversational AI development
Required Skills
- 5+ years of experience in Python backend development
- Strong knowledge of AWS (especially Bedrock, S3, and related services)
- Experience with LLMs (e.g., Claude or similar models)
- Understanding of RAG architectures and GenAI applications
- Experience with REST APIs and system integration
- CI/CD and DevOps experience
- Strong analytical and problem-solving skills
- Ability to translate business needs into technical solutions
- Fluent in English (Dutch is a plus)
Nice to Have
- Experience with Agile / SAFe environments
- Knowledge of testing and QA practices
- Exposure to enterprise integration environments
Soft Skills
- Strong communication and stakeholder management
- Analytical and structured thinking
- Team player, collaborative mindset
- Quality- and security-oriented
- Proactive and results-driven
- Eager to learn new technologies
Team Environment
You will join a cross-functional integration team delivering AI and cloud solutions in an international Agile setup (Belgium, Czech Republic, Bulgaria) , focused on innovation, knowledge sharing, and continuous improvement.
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