SIGMAHEX / PERSONAL PROFILE
Available for research & collaboration

Rabi Safinejad

IoT Security, Embedded Systems & Cloud Infrastructure

I work at the intersection of IoT, cybersecurity, networks and the outdoors — building resilient systems that can operate far from urban infrastructure. This page is a living snapshot of my professional journey, research interests and the projects I’m shaping under the SigmaHex and Free Alpine brands.

About

Who I am and what I care about

I’m an engineer with a mixed background in IT infrastructure, networking, security, embedded systems and outdoor safety. Over the last decade I’ve worked across networking, CCTV, fiber optics, Linux servers and training, gradually moving my focus towards IoT security and resilient systems.

My long-term path is to combine technical depth (IoT, cyber, embedded, signal and power) with real-world environments: mountains, remote areas, agriculture and critical outdoor infrastructure. This is where SigmaHex and Free Alpine come together: secure, practical systems that can actually survive outside the lab.

This page is intentionally simple: no CMS, no heavy backend — just a clear, maintainable snapshot of my work. I use it for:

  • Academic applications (MSc / PhD)
  • Collaborations in IoT security & edge systems
  • Connecting my brands: SigmaHex, Free Alpine and Earth & Energy

I’ll gradually refine content, add links to publications, talks and code repositories as they become public.

Focus areas

Where I plan to go deeper in the next years
IoT Security & Lightweight IDS
Designing intrusion detection concepts for constrained IoT networks, MQTT/CoAP traffic and outdoor devices.
IoT IDS MQTT / AMQP Protocol analysis
Embedded & Edge Systems
Low-power microcontrollers, sensors and robust hardware for harsh environments (mountains, remote areas).
ESP32 / ARM Free Alpine LoRa / GPS
Cloud & Infrastructure
Docker-based infrastructure, DNS, secure reverse proxies and monitoring for IoT backends and APIs.
SigmaHex Cloud Docker Nginx / CoreDNS

Selected projects & ventures

Brands and systems I’m actively shaping
Free Alpine – Nano-Weather Companion
Outdoor safety
Embedded / LoRa / GPS / Environmental sensing
A lightweight, offline-capable device for mountaineers and outdoor explorers, focused on critical weather and environmental data in harsh conditions.
SigmaHex Cloud
IoT Infrastructure
Docker / DNS / APIs / Monitoring
A modular cloud backbone for managing IoT devices, data and services across different brands (Free Alpine, Earth & Energy and future nodes).
IoT IDS / Security research
Research
MSc thesis direction (planned)
Exploring lightweight intrusion detection strategies tailored for IoT networks and constrained protocols, aligned with my academic path and long-term PhD goals.
Earth & Energy
Energy for IoT
Solar / Power systems
A brand concept for energy-focused hardware: panels and power modules designed for IoT and outdoor devices, starting from Free Alpine requirements.

Experience & education

A condensed view – details will go into the full CV
Experience
IT / Network / Systems
More than 10 years · Infrastructure, support, training
Working across networking, servers, CCTV, fiber optics and user-facing training, with a strong emphasis on reliability and practical problem-solving.
Embedded & IoT (self-driven)
Ongoing · ESP32, sensors, PCB design learning path
Building embedded skills around real projects like Free Alpine, focusing on low power, robust design and real-world constraints.
Education
[MSc – Field / University]
In progress
Master’s studies aligned with IoT, security and networks. Exact thesis topic and details will be updated here once formally approved.
[BSc – Field / University]
Completed
Background in engineering with a strong interest in systems thinking, infrastructure and applied problem-solving.

Skills

Grouped for clarity – to be refined over time
Networking & Infra
Linux (Debian) Docker Nginx CoreDNS VPN / Firewall
Security
IoT security IDS/IPS concepts Pentest basics Network hardening
Embedded & IoT
ESP32 / MCUs Sensors LoRa / GPS Low power design
Software & Tools
Python C / C++ (learning) Git Monitoring (Prometheus / Grafana)
Outdoor & Safety
Mountaineering Rescue experience Route planning
Teaching & Writing
Technical training Documentation Book authoring

Contact & links

Simple, direct channels – no forms
I’ll gradually add more links here as public projects go online.