Senior Software Engineer - Customer Integration

At Sonatus, we are redefining the future of Software-Defined Vehicles (SDV) through agility and innovation. To achieve this, we operate as Mission-Driven Squads, where each team takes full end-to-end ownership of a specific module to deliver production-ready software with speed and precision. We are looking for a Software Engineer - Customer Integration to join one of our squads (e.g., Secure Network, Data Hub) as a core member. In this role, you will go beyond traditional coding; you will act as a Full-Cycle Engineer who ensures the quality and reliability of the features you build. This position is ideal for an experienced C/C++ developer who is passionate about delivering excellence. By leveraging AI tools like GitHub Copilot and Claude, you will drive the entire engineering lifecycle—from implementation to verification—safeguarding the integrity of our software for millions of vehicles on the road.

Responsibilities

Work under the guidance of the Squad Lead to execute the full engineering lifecycle—from Implementation to Verification; Switch roles flexibly based on squad goals; Design and develop high-quality C/C++ embedded software based on customer requirements; Design Python-based test cases and build automation frameworks to verify both own code and squad deliverables; Create and maintain detailed technical documentation including APIs, dependencies, and integration guides; Participate in Code Reviews with focus on Testability and Safety; Champion a culture of total ownership and define 'Done' as production-ready validated software; Actively troubleshoot and resolve build/test failures in the CI/CD pipeline; Leverage AI tools such as GitHub Copilot and Claude to maximize productivity; Support major test events with partners on-site (domestic/international), troubleshooting integration issues in vehicle or test bench environments; Serve as primary technical contact for integration issues, translating complex engineering concepts into clear guidance for customer engineering teams

Requirements

6+ years of experience in embedded software development or engineering; Proficiency in C/C++ programming (strong understanding of pointers, memory management, and data structures); Solid experience in development and debugging within a Linux environment; Experience using Python for writing test scripts or automating engineering tasks; A flexible attitude with a strong belief that 'Testing is Engineering' and willingness to balance time between Dev and QA tasks (even up to 50:50) depending on the squad's needs; Ability to look beyond the 'Happy Path' and critically ask 'Is this truly safe for the user?'

Nice to have

Experience in automotive design reviews and audit processes based on standards such as ISO 26262 (Functional Safety), Automotive SPICE (ASPICE), or ASIL; Experience adhering to MISRA C/C++ coding standards and using static analysis tools such as Coverity, Polyspace, or similar products to manage code quality; Experience working in Cross-functional Squads or Agile/Scrum environments; Proficiency with Jira/Confluence and Git-based workflows (Branching, Pull Requests); Experience with Unit/Integration test frameworks (e.g., PyTest, GoogleTest); Deep understanding of automotive communication protocols (Ethernet, CAN, SOME/IP); Eagerness to learn and adopt new technologies and AI tools to enhance workflow efficiency

Benefits

Competitive compensation and equity program; Support 4 social insurance plans; Family leave (Maternity, Paternity); Hybrid office work-arrangement/flexibility; Complimentary lunch/dinner, snacks and beverages during on-site working days; Wellness benefit allowances (towards gym membership and fitness programs); Phone & Internet reimbursement; Computer Accessory Allowance; Annual Appreciation Gift; Annual Health Checkup; Support English class; Departmental team building and outings; Employee Referral Program; Culture/Employee Satisfaction Surveys - Feedback matters!; Innovative Award Program (annual)