ACENSI is looking for a Senior Dev & Architect .Net & Python - real time steering for one of their clients based in Brussels in the energy sector :Main Activities▪ As senior software developer and architect, you will:o Guide technically the development (3-5 people).o Guide the discussion with functional analysts and with domain experts.o Design architectural proposals, documented in diagrams, including APIs, services, front-end and back-end interactions. Sometimes autonomously, sometimes in team collaborationo Improve the delivery in general.▪ You will supervise the team to ensure these activities as a team:o Subdivide the proposal into agile progressive development upgrades.o Implement builds and associated testing and maintenance tools.o Develop back-end services and APIs.o Write tests in collaboration with business colleagues.o Document and develop user manuals.o Provide user assistance and supporto Monitor systems and provide level 2 support, incident resolution, and troubleshooting (root causes of recurring incidents).There is a potential to grow as tech lead. To be discussed. Hard skills▪ Required: at least 6+ years of software engineering & technical design and architecture responsibilities. Education: a master as polytechnic engineer is a strong plus.The following abilities are required:o Proficiency in .NETo Proficiency in Python, including async programming and performance-oriented designo Proven experience in designing and operating event-driven architectures (Kafka, Azure Event Hub or MQTT)o Solid understanding of distributed systems concepts: scalability, fault tolerance, backpressure, ordering, idempotencyo Hands-on experience with Kubernetes in production environments, including autoscaling and deploymentso Experience with stateful systems such as Redis (caching use cases)o Strong testing culture: unit tests, integration tests, and production validationo Production-grade observability: metrics, logging, alerting (Grafana, Prometheus, or equivalent)o Familiarity with agile development practiceso Experience with one of these technologies is a plus: Scala, Rust.o Experience with parts of our technical stack is a plus:- Azure, Bicep (Infrastructure as Code)- Python (async), .NET- Kubernetes (autoscaling, rolling deployments), Azure Function- Kafka / Azure Event Hub, MQTT, Azure Service Bus- PostgreSQL, Redis, Azure Data Explorer (under testing)- CI/CD: GitHub Actions, Continuous Deployment- Optionally, for components of Kiwi: Scala, Rust.LanguagesFluent in English. French or Dutch is a plus