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Vallum Associates

Python/React Developer

Vallum Associates
Belgium · Contract · Mid-Senior

Role Overview

We are looking for a skilled Python/React Developer to join our existing team and support ongoing initiatives focused on building and enhancing an AI platform used for internal communication and collaboration between agents within the client. The successful candidate will contribute to the development of scalable, secure, and high-quality solutions while adhering to the client's development standards and best practices.



Key Responsibilities

  1. :Design, develop, and maintain AI-driven applications and services using Python, FastAPI, and React
  2. .Build and enhance backend APIs, microservices, and integrations to support internal AI platform initiatives
  3. .Develop and optimize data access layers, messaging systems, and database solutions using SQLAlchemy, SQL Server, PostgreSQL, and RabbitMQ
  4. .Contribute to AI agent development, including integrations with LLMs, RAG architectures, MCP/A2A frameworks, and AI orchestration platforms
  5. .Collaborate with DevOps and engineering teams to implement containerized deployments, CI/CD pipelines, and cloud-native solutions
  6. .Participate in Agile ceremonies, provide technical recommendations, and actively contribute ideas to improve platform capabilities and development practices


.
Required Qualification

  1. s:Strong hands-on experience with Python development, including FastAPI, API design, and backend service developmen
  2. t.Solid experience with React, JavaScript, CSS, and modern UI development practice
  3. s.Proven expertise in database development using SQL Server, PostgreSQL, SQLAlchemy, and related data access technologie
  4. s.Experience with messaging and queue-based architectures using RabbitMQ or similar technologie
  5. s.Good understanding of security concepts and authentication protocols such as SAML, OAuth, and Microsoft Entra I
  6. D.Experience implementing automated testing using Pytest and applying software engineering best practices to ensure high-quality code deliver


y.
Nice-to-Have Ski

  1. llsExperience with AI and Generative AI technologies, including LLMs, RAG architectures, MCP, A2A, LangChain, LangGraph, and Copilot solutio
  2. ns.Knowledge of Microservices Architecture and distributed systems desi
  3. gn.Experience with containerization and cloud-native technologies such as Docker and Kubernet
  4. es.Familiarity with CI/CD pipelines and deployment tools including Azure DevOps and Argo
  5. CD.Experience with NX and Micro-Frontend architecture patter
  6. ns.Understanding of AI platform governance, observability, and operational best practic


es.
Soft Sk

  1. illsStrong communication and collaboration skills with the ability to work effectively in cross-functional te
  2. ams.Team-oriented mindset with a focus on knowledge sharing and collective succ
  3. ess.High level of accountability and ownership for assigned tasks and deliverab
  4. les.Proactive attitude with the ability to propose ideas, challenge assumptions constructively, and provide well-reasoned recommendati
  5. ons.Ability to work efficiently in Agile environments using Scrum or similar methodolog
  6. ies.Strong analytical and problem-solving skills with a focus on continuous improvem


ent.
Language Require

  • mentsGood working proficiency in Dutch and/or Fr
  • ench.Very good command of English (written and spo


ken).

Key Skills

Ranked by relevance

ai microservices postgresql sql server fastapi python devops server cloud cicd sql containerization javascript rabbitmq docker react oauth scrum saml css ui
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Posted
Jun 16, 2026
Type
Contract
Level
Mid-Senior
Location
Brussels Metropolitan Area

Industries

Utilities Services for Renewable Energy

Categories

Engineering

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