Software Engineer – Python & AI Integration

Pauwels Consulting; Brussel; Hybride; EUR 75 000 - 115 000; Plein temps

Avantages offerts par ce poste

Hybrid work model

Brussels location

Competitive compensation package

Résumé du poste

Pauwels Consulting is assisting a major energy-sector client in Brussels to recruit a Software Engineer for an AI-centered team. You will design, implement, and improve production-grade AI applications using large language models, RAG, and agentic workflows to support sustainable energy infrastructure.

Responsibilities include building backend services and APIs, optimizing retrieval pipelines, and ensuring observability, testing, and secure data handling.

Qualifications

• 5+ years of backend or full-stack software engineering experience.

Responsabilités

• Design and implement AI-powered applications using LLMs, RAG, and agentic workflow patterns.
• Build backend services, APIs, and integrations required for AI-centric software solutions.
• Optimize retrieval pipelines including chunking, embeddings, vector search, and reranking techniques.
• Develop reliable workflows using LLM APIs and AI orchestration frameworks.
• Implement comprehensive evaluation, testing, monitoring, and observability for AI applications.
• Collaborate with stakeholders to define safe patterns for tool use and human-in-the-loop approvals.

Connaissances

Python

Backend

LLMs

RAG

Agentic workflows

CI/CD

Testing

Security-conscious data handling

Cloud-native

Vector search

Embeddings

English

French/Dutch (language)

Outils

LangChain

Semantic Kernel

Azure

*.NET/C#

Description du poste

Our client, a key player in the energy sector, is seeking a Software Engineer to join a specialized team developing AI-centric applications. The role involves designing, implementing, and improving production-quality solutions using large language models and agentic workflows to support sustainable energy infrastructure.

Responsibilities

• Design and implement AI-powered applications using LLMs, RAG, and agentic workflow patterns.
• Build backend services, APIs, and integrations required for AI-centric software solutions.
• Optimize retrieval pipelines including chunking, embeddings, vector search, and reranking techniques.
• Develop reliable workflows using LLM APIs and AI orchestration frameworks.
• Implement comprehensive evaluation, testing, monitoring, and observability for AI applications.
• Collaborate with stakeholders to define safe patterns for tool use and human-in-the-loop approvals.

Requirements

• You have 5+ years of experience in backend or full-stack software engineering.
• You bring 1+ years of experience integrating LLMs or other Generative AI services into software applications.
• You possess strong programming skills in Python.
• You have practical knowledge of RAG, embeddings, vector search, and retrieval quality improvement.
• You're experienced with MCP, A2A, tool calling, or multi-agent workflows.
• You bring experience designing maintainable services with CI/CD, testing, and deployment practices.
• You possess an understanding of cloud-native development and security-conscious data handling.
• You're able to communicate technical trade-offs and evaluate AI application quality metrics.
• You are fluent in English with active knowledge of French or Dutch.

Nice to Haves

• Experience with AI frameworks such as LangGraph, LangChain, or Semantic Kernel.
• Familiarity with the Azure cloud environment and Microsoft AI ecosystem tools.
• Experience with .NET and C#.
• Knowledge of vector databases or enterprise search platforms.
• Experience working in regulated or security-sensitive environments.

Offer

• Start date: ASAP
• Work regime: Full-time
• Location: Brussels
• Working model: Hybrid
• Contract: open to both permanent employees and freelancers