System L3 Support Engineer

MARSS Group

System L3 Support Engineer troubleshooting MARSS Products and Services remotely and engaging with customers and teams. Involves technical support, documentation, and collaboration with diverse teams.

Posted 6/8/2026full-timeNice • 🇫🇷 FranceMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

JavaScriptLinuxPython

About the role

Key responsibilities & impact

L3 Support over the portfolio of MARSS Products and Services: Engage in Systems troubleshooting through remote shell connection
Proactive checks of systems and sensors
Documentation: create / update troubleshooting procedures, intervention reports, ad-hoc tips and guides, Knowledge Base
Collaboration and support with other teams
Engage in L1 / L2 Support for products and services
Support our own Field Engineers and Field Technicians remotely
Interface with the dev team for L3 issues
Interact with Project Managers in pre-commissioning phases
Systems fine-tuning and calibration
Configuring & Commissioning system devices / servers
Participate in or own technical assignments
Ad hoc on-duty time out of office hours
Travel to sites for local support

Requirements

What you’ll need

Strong Linux Expertise - through the shell
Networking Experience with hardware components - we are system integrators, it’s not only software!
Good English
Customer satisfaction oriented
Communication Skills
Troubleshooting Skills
The rest of our tech stack!
Passion, or experience, with Electronics / Hardware devices
Knowledge of Security sensors (Radar, Sonar, Camera systems etc.)
Python
Javascript
MS Windows

Benefits

Comp & perks

Local IT support [optional]

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

LinuxNetworkingTroubleshootingPythonJavascriptElectronicsHardwareSecurity sensorsSystem configurationSystem calibration

Soft Skills

Customer satisfaction orientedCommunication skillsCollaborationProactiveDocumentationProblem-solvingTeam supportAdaptabilityAttention to detailTime management