William MANGOUA SOFACK

Conducted Change Management & Enhanced development processes and innovation culture. Strengthened communication and collaboration between teams from diverse disciplines. Adapted Agile principles and development processes for industrial applications, leveraging Scrum, SAFe, and Lean Six Sigma (DMAIC) methodologies. Overseeing, Managing, and Monitoring Project Control Project portfolio Management and Monitoring Project Planning and Scheduling Risk and Quality Management Steering, Monitoring and resources management Resource Acquisition, Allocation, Optimization Performance Monitoring and Evaluation Stakeholders Communication and Reporting Risk and Issue Management Team motivation, Feedback, Delegation One-One sessions & team weekly meetings Production platform support Monitoring of incidents and activities around production Classification of incidents as bugs or need for development

Key architect in developing reusable, Hardware-independent software architecture: Enabling Android and iOS devices to control and monitor roller shutter motors using web and microservices technologies. Scrum Master & Work Package leader: Introduced Agile scrum methods & best practices. Piloting and Monitoring Project Control Role of Scrum Master in Interior team Project Planning and Scheduling Risk and Quality Management Performance Monitoring and Reporting Technical Lead Design and Architecture, microservices technologies Team Leadership and Mentorship Project Management and Coordination Quality Assurance and Testing

I successfully spearheaded the development of sequence screens for an infuser pump within the medical device sector. This project was critically aligned with the IEC 62304 and IEC 62366-1 standards, emphasizing the importance of adhering to stringent medical software development and usability engineering guidelines. As a vital member of a 10-person team operating in an Agile/Scrum environment, my primary objective was to deliver the final version of the screen sequence fully developed, tested, and documented within a one-year time-frame. My contributions to the project included: • Leveraging OpenGL-ES for the development of the Human-Machine Interface (HMI), enhancing user interaction with the medical device. • Authoring detailed specifications and a verification plan to facilitate the outsourcing of medical device display screens, ensuring clarity and precision in subcontractor deliverables. • Conducting rigorous acceptance tests for outsourced components, guaranteeing their quality and integration readiness. • Integrating the OpenGL-ES based HMI with the core software of the medical device, ensuring seamless operation and user experience. The technical framework of the project involved: • Utilizing UML Object-Oriented Modelling with Enterprise Architect and employing design patterns to structure the software architecture effectively. • Programming in modern C++ with multithreading and STL on the Integrity OS, along with the application of OpenGL-ES and Scade for specialized development needs. • Working within an integrated development environment facilitated by tools such as Eclipse, Visual Studio, and Multi, and ensuring version control and continuous integration through SVN and Jenkins. This endeavour culminated in the successful, on-time, and within-budget achievement of all project milestones, showcasing my capabilities in navigating complex software engineering challenges in the highly regulated medical device industry.

I was tasked with a critical project in the robotics sector to facilitate communication between a Siemens Profinet controller and a Staubli Ethercat robot. This involved overcoming the challenge of integrating distinct industrial network protocols within an Agile/Scrum managed team of five. My actions included: • Acquiring foundational knowledge of Ethercat and Profinet networks. • Developing middleware to enable communication between Ethercat and Profinet devices, as well as Ethercat and sercos3 devices. • Conducting network profiling and reverse engineering to optimize communication flow and ensure compatibility. The project utilized a technical environment rich in C++ multithread programming with STL on the VxWorks real-time operating system, supplemented with scripting in Ruby, and tools such as Eclipse, Visual Studio, Tera Term, and Wireshark on platforms including Ubuntu, Win7, and Win XP. The results of my work were significant, successfully enabling protocol communication between Ethercat and Profinet devices and leading to the development of a solution that was certified compatible with Profinet. This achievement not only demonstrated my capability to address complex technical challenges in embedded software and network communication but also contributed to advancing interoperability within the field of robotics.

I made significant contributions to the aeronautics sector, particularly in the certification process of the AFDX backbone embedded in the A380 Airbus aircraft. My project aimed at optimizing the end-to-end delay bound for high-priority real-time flows within a non-preemptive context, addressing the challenge of excessive wiring due to over-approximated delay bounds. My role involved: • Conducting a comprehensive review and performance evaluation of the existing AFDX network certification work, identifying areas of over-approximation. • Developing a refined mathematical model to propose a tighter end-to-end delay bound. • Validating this model through implementation in a simulated environment. • Designing a switch queue management algorithm tailored to non-preemptive scheduling. Operating within a strict regulatory environment (DO178B), I utilized network calculus, C++ multithread programming with STL on Linux, Java SE, bash scripting, and embedded Linux on Arm7 processors. The outcome of my work demonstrated that it was possible to significantly reduce the volume of cabling in the AFDX network of the A380 Airbus without compromising operational safety. This achievement not only contributed to the efficiency and sustainability of aircraft design but also led to publications and presentations at international peer-reviewed conferences, establishing new benchmarks in the field of aeronautics networking.

I led the development of an administrative invoice management system to address significant delays in invoice processing that extended up to two years. This role required me to be a crucial part of a seven-member team working within a V-cycle project framework. My responsibilities included: • Drafting comprehensive technical documents, including software requirements, specifications, and detailed designs. • Employing systemic modelling with MERISE to structure the software development process. • Implementing the database in Oracle 10g and MS-Access, and developing the Human-Machine Interface (HMI). • Conducting user training to ensure smooth adoption and usability of the system. The technical tools and languages I utilized encompassed MERISE for systemic modelling, Oracle 10g and MS-Access for the relational database management system (RDBMS), Visual Basic and Visual C++ with MFC for programming, Visual Studio as the integrated development environment (IDE), and Crystal Report for reporting. The outcome of my work was transformative for AES-Sonel: • The administrative invoice management software was successfully implemented, streamlining the process. • The time required to process invoices was reduced by 80%, significantly improving operational efficiency. • The software effectively eliminated the risk of losing invoices and removed the potential for misappropriation of funds, enhancing financial security and accountability within the company. This achievement demonstrated my ability to lead and execute a complex software development project that delivered tangible improvements in administrative and financial operations.