🌟 Who we areAt Akkodis, we are one of the global leaders in engineering across IT, aeronautics, energy, and other high-tech sectors. With 50,000 experts in 30 countries, we deliver innovative and sustainable technological solutions for our customers.🎯 AssignmentsWe are looking for a SW Designer to join a dedicated design team based in Charleroi, for one of our clients in the railway signalling sector.This is a unique opportunity to contribute to the evolution and enhancement of an innovative safety-critical signalling system, with a direct impact on two flagship products. You will be involved in the definition, design, and validation of new software baselines, as part of a roadmap extending through 2030.Your main responsibilities include:Specification & Architecture- Collaborate with the software architect to define and develop software specifications and architectureSoftware Component Development- Design and code safety-critical (SIL4) and non-vital (SIL0) software components- Establish and maintain the software development toolchain- Specify, design, and conduct tests and verification of deliverables- Manage software product configuration- Create and update software design documentation in line with process requirementsIntegration & Collaboration- Support software integration in close collaboration with fellow software designers- Work alongside system engineers to analyse and specify requirements- Collaborate with subsystem colleagues throughout integration phases- Contribute to feature testing and global V&V activities to support programme deliveryStandardisation & Continuous Improvement- Reuse or implement reusable solutions to support standardisation efforts- Apply SIL4 development processes and standards (CENELEC)- Proactively suggest process improvements- Analyse reported issues and propose solutions within the Change Request Management framework👤 The ProfileBackgroundYou hold an Engineer's or Master's degree in a relevant field.Must Have- Solid experience in writing specifications and managing requirement traceability (EN & FR)- Good knowledge of Python, C, and C++ programming languages- Proficiency with Git / GitLab- Fluent in both French and English (written and spoken)- Strong organisational skills, with a proactive and problem-solving mindset- Autonomous, with the ability to read, write, and update technical documentation- Good communication skills and a genuine team spiritNice to Have- Experience with modelling methods (UML, SADT, SysML)- Knowledge of network communication protocols and IT networks- Background in railway signalling and/or vital/secure software development- Familiarity with SQL, VB.Net, or Docker- Experience in SIL4 or safety-critical development environments🌍 Working Environment at Akkodis- Direct link with a Business Manager for personalised support- Technical training to develop your skills- Career prospects in a stimulating environment- A corporate culture focused on safety, quality, and innovation🔎 Our Recruitment ProcessStage 1: Initial telephone interview (15 min) with @Kenny, Talent Acquisition.Step 2: Interview (60 min) with a Business Manager.Step 3: Interview (60 min) with the client.