Experience

Experience connected to support, infrastructure and technical proof.

This page does not try to inflate the experience. It shows where I have been exposed to real environments, how I connect that exposure to technical projects, and what it says about my working method.

2025 — Present

Orange Business — technical support / service environment

Work-study experience in a customer service and support context

  • Exposure to ticket-based follow-up, service context and professional communication
  • Support mindset around checking environments, clarifying incidents and keeping trace of actions
  • Better understanding of operational expectations: accuracy, continuity, escalation and documentation
  • Experience that helps me present technical projects with more realistic constraints
2025

Private 5G / OpenAirInterface technical work

Hands-on setup, testing and troubleshooting around a 5G SA lab

  • Work around Core Network, gNodeB, UE logic and reproducible setup notes
  • Experimentation with RFSim, SDR-related configuration paths and attachment/session behavior
  • Troubleshooting based on logs, configuration checks, service state and documented observations
  • Documentation written so another person can continue or rebuild the environment later
2024 — 2026

Project-based network, cyber and telecom labs

University and personal technical projects reframed as professional case studies

  • Secure hospital network with VLAN, routing, redundancy, services, supervision and backup logic
  • Secure Java ChatApp with SSL/TLS validation, MySQL persistence and Wireshark evidence
  • SDR NOAA weather image workflow combining radio constraints, decoding tools and transmission logic
  • Caldera + ELK lab direction for attack simulation, logs, evidence and recommendations
Foundation

Bac Professionnel Systèmes Numériques and practical technical base

Earlier technical path focused on digital systems and operational habits

  • Hands-on comfort with equipment, services and step-by-step technical work
  • Early habits around following procedures, checking results and fixing basic technical issues
  • Foundation that made networking, systems and telecom projects easier to approach later

What this experience demonstrates

Operational awareness

I understand that technical work is not only configuration: it also includes follow-up, communication, clarity and traceability.

Troubleshooting discipline

The common thread across work and projects is evidence-based diagnosis: logs, captures, state checks and documented tests.

Documentation value

I treat documentation as part of the work, especially when a project has to be reviewed, continued or reproduced.

Realistic self-presentation

The portfolio should make the level clear: what I have done, what I can explain, and what still needs deeper validation.

See the projects behind the experience

The projects page is where the technical proof becomes concrete: architecture, tools, responsibilities, validation and limits.

Crafted in France. © 2026 Kopethan ARUDSHELVAN (Kopy).