Software Architect / Senior C++ Linux Embedded Developer (Permanent/Freelance)

Project overview

The Lianeo Context

Lianeo, a consulting firm specializing in embedded systems and IoT, is recruiting on behalf of a French industrial partner that designs and manufactures traffic monitoring and analysis systems deployed on public roads. This engineering SME masters its entire chain: hardware design, algorithms, embedded software, and supervision applications.

The Client Context

The equipment includes cameras and lidars and relies on a significant layer of image and video stream processing. The embedded software, developed in C++ under Linux, operates in the field over long cycles. The code mixes a proven legacy base with modern C++ developments. The position joins the embedded development team with a key role: evolving the architecture of this software and ensuring its long-term robustness.

Your Missions

Profile Sought

Technical Skills

Functional Skills

Must-haves

Language(s)

Work Environment

• Own the embedded software architecture: understand the existing system, propose and lead its evolution
• Dive into code that mixes legacy and modern C++, understand its logic, then decide what evolves, what is refactored, and what remains as is
• Treat robustness as an architectural issue: memory management, error handling, degraded mode behavior
• Dedicate approximately 30% of your time to anomalies, both those from SonarQube reports and those reported on products, tracing back to the root causes: a recurring anomaly provides insight into the design
• Correct without regression, relying on unit tests, Python scripting, and debugging
• Disseminate good design and coding practices within the team
• Work with the algorithm and test and validation teams on integrating evolutions
• Software architecture and design, design patterns
• Modern C++, and proficiency with legacy C/C++ code
• Embedded Linux
• Python for scripting: tests, tooling, automation
• Static code analysis: SonarQube or equivalent tool
• Debugging and memory management: gdb, detection and correction of memory leaks
• Testing: GoogleTest or equivalent
• Communication buses and protocols: I2C, UDP
• Appreciated: camera and lidar-based systems, image processing, notions of Python/Django
• Ability to map code you haven't written and understand its logic
• Ability to make trade-offs between redesign and stability for a deployed product
• Rigor regarding non-regression
• Ability to get experienced developers to adopt new practices
• Senior experience in C++ development under embedded Linux with a true architectural dimension, 8 years minimum
• Taking over and evolving existing code, from legacy to modern C++
• Python for scripting
• Debugging, memory management, and static analysis (SonarQube or equivalent)
• Commitment to the 30% of time dedicated to anomalies (SAST)
• Fluent French, the team's working language
• Technical English reading comprehension
• Permanent contract or freelance, at our partner's site
• Location: Versailles (78)
• Remote work: hybrid, 2 days per week
• Start date: ASAP
• Integration into the embedded development team, in coordination with the algorithm and test and validation teams
• Position open to people with disabilities

Project details

• Start: ASAP
• Duration: 12 mois renouvelable
• Remote: hybrid
• Location: Versailles, Île-de-France, FR
• Languages: French