Radio Frequency Engineer

We are building a mesh communication network across multiple radio technologies, from HF to microwave. As an RF Engineer, you will work with radio hardware, firmware, and software to deploy and connect different radio systems into one mesh network for field use.

What You Will Work On

:- LoRa radios with Meshtastic/Meshcore firmware for long-range text communication and GPS trackin

g- HAM radio transceivers (HF/VHF/UHF) connected to computers for automated audio transcription, command transmission, text messaging, and GPS trackin

g- HaLow (IEEE 802.11ah) radios and OpenMANET systems for low-power, long-range Wi-Fi mesh in the sub-1GHz ban

d- IP mesh radios using COFDM modulation across handheld, manpack, vehicle-mounted, airborne, and base station form factors, with multi-hop mesh networking, GPS/BeiDou positioning, and IP data over sub-GHz and L-band frequencie

s- Unified mesh network combining HF/VHF/UHF, LoRa, IP mesh radios, HaLow, and Wi-Fi (2.4GHz) using networking libraries such as Reticulum

.
What You Will Do

:- Configure and deploy LoRa nodes for field messaging and position tracki

ng- Set up and operate IP mesh radios across handheld, manpack, vehicle, and airborne form factors, including COFDM modulation, MIMO antennas, frequency planning, and AES encrypti

on- Integrate HaLow radio modules into mesh architectures for extended range sub-GHz connectivi

ty- Connect HAM radio transceivers (HF/VHF/UHF) to Linux computers via sound card interfaces, CAT control, and digital mode protocols (FT8, VARA, AX.25) for automated reception, transcription, and command pipelin

es- Build mesh network routing with Reticulum or similar stacks, bridging different radio links into one transport lay

er- Conduct RF site surveys, propagation analysis, and antenna placement optimization for field deploymen

ts- Build Linux-based radio gateway systems on single-board computers (e.g. Raspberry Pi) for audio processing, digital signal demodulation, and network bridgi

ng- Test end-to-end communication paths across mixed radio technologies in lab and field environmen

ts- Work with team members across disciplines on system integration, testing, and field deployme

nt
What You Will Nee

d :- Familiarity with radio systems in at least two of: LoRa/LoRaWAN, HAM radio (HF/VHF/UHF), IP mesh radios, HaLow (802.11ah), or Wi-Fi mesh network

ing- Proficiency in Python for radio interfacing, automation, and networking scri

pts- Experience with embedded firmware development for radio modules (ESP32, STM32, or similar boar

ds)- Experience with Linux and single-board computers (e.g. Raspberry Pi) for radio gateway and embedded applicati

ons- Familiarity with digital communication protocols and software-defined radio conce

pts- Understanding of IP networking fundamentals (TCP/IP, routing, subne

ts)- Diploma or Bachelor's degree in Electrical Engineering, Telecommunications, RF Engineering, or equivalent practical experie

nce
Nice To Ha

ve :- Amateur radio license and active experience with HF/VHF/UHF opera

tion- Experience with Meshtastic, Meshcore, Reticulum, or similar mesh networking platf

orms- Experience with tactical or field-deployed COFDM-based mesh radio sys

tems- Experience building computer-to-radio interfaces (sound card digimodes, CAT control, TNC, A

PRS)- Familiarity with speech recognition or automated transcription pipelines for radio a

udio- Experience with SDR tools such as GNU Radio, SDR#, or sim

ilar- Hands-on skills in antenna design, construction, and tuning for field deploy