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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # C# .net Software Engineer (senior) - Application Support & Systems Integration FRENCH/ENG - **Company:** Michael Bailey Associates - **Location:** Zaventem, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Application Programming Interfaces (APIs), Advanced Message Queuing Protocol, Software Applications, Confluence, JIRA, Bash Shell, C Sharp (Programming Language), CentOS, Databases, System Configuration, Continuous Integration, Extract Transform Load (ETL), Data Migration, Linux, DevOps, Github, Supervisory Control and Data Acquisition (SCADA), Hyper-V, Virtual Private Networks (VPN), JSON, Python (Programming Language), Network Security, PostgreSQL, Message Broker, Enterprise Messaging Systems, Microsoft SQL Server, Windows Servers, Message Queuing Telemetry Transport (MQTT), Network Segmentation, Performance Tuning, Windows PowerShell, Red Hat Enterprise Linux, Remote Access Technology, OPC Unified Architecture, Software Deployment, Software Engineering, SQL Stored Procedures, Systems Integration, TCP/IP, Extensible Markup Language (XML), SSL Certificate Management, Multithreading, Freeform SQL, Transport Layer Security, Data Server Interface, .NET Core, Reliability of Systems, Firewalls (Computer Science), Gitlab, Git, Event Driven Architecture, Real Time Data, Stream Processing, Code Restructuring, Docker, Vmware - **Published:** September 4, 2026 - **Apply:** https://www.adzuna.be/details/5868788100 ## About the Role * C# / .NET Framework / .NET Core * Python (an advantage) * PowerShell / Bash * Multi-threaded and event-driven applications Databases * SQL Server / PostgreSQL * Complex SQL queries and stored procedures * Performance tuning * Database redundancy/failover * Data migration and ETL Integration & Messaging * OPC UA / industrial communication * MQTT / AMQP * TCP/IP and socket-level troubleshooting * XML / JSON * Message brokers * Real-time data processing and event-driven architectures Infrastructure * Windows Server * Linux / Red Hat / CentOS * VMware / Hyper-V * VPN, RDP, SSH * Remote access and secure connectivity DevOps & Tools * Git / GitLab / GitHub * CI/CD pipelines * Docker * Jira / Confluence * ITIL / service management Networking & Security * TCP/IP * Firewalls, proxies and NAT * TLS/SSL and certificate management * Secure remote access * Network segmentation and DMZs Experience Required * 3+ years' experience in Software Engineering, Systems Integration, Application Support or a similar technical role. * Strong debugging and root-cause analysis capability. * Comfortable troubleshooting complex systems across multiple technical layers. * Experience working in production/mission-critical environments is advantageous. * Strong communication and technical documentation skills. * Able to work independently while collaborating with technical and business stakeholders. Nice to Have * Industrial automation / SCADA / PLC experience * Experience with DevOps and CI/CD * Infrastructure-as-code exposure * ITIL/service management experience * French language skills * Experience in logistics, transportation or other 24/7 operational environments The mindset is crucial. The ability to influence, change, want to change/improve and get stuck in!! top firm, top management, lots of work. Not always easy and always a challenge!! ## Description We are looking for a hands-on Software Engineer to join a technical team responsible for maintaining, supporting and integrating business-critical software applications., * Provide 2nd/3rd line application support and resolve complex production issues. * Diagnose problems across software, databases, networks and system interfaces. * Perform root-cause analysis and implement permanent fixes. * Develop and maintain system integrations and data interfaces. * Work with APIs, messaging systems and real-time data flows. * Configure and maintain high-availability and redundant environments. * Support software deployments, testing and system configuration. * Collaborate with developers, infrastructure teams, technical teams and external stakeholders. * Produce technical documentation, troubleshooting guides and operational procedures. * Contribute to software stabilisation, refactoring, automation and CI/CD initiatives. * Help modernise test environments and improve overall system reliability. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Best Companies to Work For in Paris: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/190-best-companies-to-work-for-in-paris-top-25-companies-in-2023)