I am a Senior engineer with 24 Year Work experience in CMMI level 5 companies.
I have built from simple applications to as complex as
Designing a ground station aircraft radio based on ACARS and ED137 Eurocae standards ie Aircraft Communication Addressing and Reporting System.
Wearable Devices and Bio-Medical Instruments.
IOT Devices , Mesh Networking. RF Communication , WaveGuides , Antenna Design
I build state of the the art 3D printers ( & Grbl based cnc machines too ) based on Laser Galvos and UV Resin as well as FDM .
I did Projects involving multiple streams of engineering from Material , Using Ultra Violet sensitive Resins , Chemistry , Mechanical Engineering & structure design , Cloud & desktop Application with micro-controller firmware programming in c and assembly.
I work with all Major Families of Micro-controllers ie
ARM Stm32, AVR , ESP32, PIC
Nordic Semiconductor NRF52 and 51 series for Bluetooth Low Energy,
Mesh Networking , ANT+
Texas Instruments CC2650 series
software defined radio,hackrf, rtl-sdr, rtlsdr,portapack,Opera Cake for HackRF
Rahul took over a year on a project that he bid as 7 days to complete the work. After more than a year, I realised he still didn't actually understand how the device even works, despite me explaining it over and over again. I have shipped schematics, boards, test equipment, data sheets, step by step descriptions, but after all that, we don't have a single thing to show for our progress payments or time taken. This has been my worst experience on Freelancer in 26 hires.