C# .net Software Engineer, Tech Lead, Team Lead, Application Support & Systems Integration FRENCH/ENG FREELANCE

Michael Bailey Associates GmbH; Brussel; Sur place; EUR 111 000 - 157 000; Plein temps

Résumé du poste

Michael Bailey Associates GmbH is seeking a hands-on Software Engineer to join a technical team responsible for maintaining, supporting and integrating business-critical software applications in Zaventem, Belgium. This freelance role starts with 4 days in the office, with potential for ongoing remote collaboration.

The position covers software development, application support, troubleshooting, systems integration and configuration, taking ownership of production issues and performing root-cause

Qualifications

• 5–10+ years' experience in software engineering, systems integration or application support.
• Strong debugging and root-cause analysis capabilities.
• Experience in production/mission-critical environments is advantageous.
• Able to work independently while collaborating with stakeholders.

Responsabilités

• 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.

Connaissances

5+ years experience

Root-cause analysis

Debugging

Independent work

Stakeholder communication

Outils

Docker

VMware

Windows Server

TCP/IP

VPN

TLS/SSL

Description du poste

C# .net Software Engineer, Tech Lead, Team Lead, Application Support & Systems Integration FRENCH/ENG FREELANCE, 4 days in office to start, Zaventem.

We are looking for a hands-on Software Engineer to join a technical team responsible for maintaining, supporting and integrating business-critical software applications.

The role combines software development, application support, troubleshooting, systems integration and configuration. You will take ownership of production issues, perform root-cause analysis, implement fixes and work across application, database, infrastructure and networking layers.

Key Responsibilities

• 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.

Technical Skills

Programming

• Python (an advantage)
• PowerShell / Bash
• Multi-threaded and event-driven applications

Databases

• Complex SQL queries and stored procedures
• Performance tuning
• Data migration and ETL

Integration & Messaging

• MQTT / AMQP
• TCP/IP and socket-level troubleshooting
• XML / JSON
• Message brokers
• Real-time data processing and event-driven architectures

Infrastructure

• Windows Server
• VMware / Hyper-V
• VPN, RDP, SSH
• Remote access and secure connectivity

DevOps & Tools

• Docker
• 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

• 5 /10+ 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

• Experience with DevOps and CI/CD
• 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!!