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C Programming Electrical Engineering Electronics Engineering Microcontroller
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Rahul S.

@RaspberryOculus

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4.7
70

7.5

7.5

93%

27 years Zynq PYNQ RF/SDR (DDC/NCO) | DSP Zephyr

$47 USD / Hour

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India (4:43 PM)

Joined on January 13, 2008

2 Recommendations

$47 USD / Hour

Overview: I do not just write RTL or embedded C. I am a Systems Architect who owns the verification and physical-world hardware integration. I solve the complex bottlenecks where software meets physics—timing drift, signal noise, and DFM/EMC compliance—so your system actually works in the real world, not just in a simulator. Specific Hardware & Silicon Expertise: FPGA & RF: Xilinx Zynq-7020, PYNQ, Digital Down Conversion (DDC) IP Cores, NCO/PLL architecture, HackRF, Autonomous SDR systems. Embedded SoCs: STM32 (H7/F4), ESP32-S3, ARM Cortex-M. Physical Layer: Altium Designer, High-Speed Signal Integrity, Thermal Analysis, DFM/DFA/EMC compliance for Defense and Medical hardware. Protocols & Architectures: * ACARS/ED137 ground station radio standards. * Zephyr RTOS & FreeRTOS deterministic task scheduling. * NIST Post-Quantum Cryptography for edge devices. * Edge AI (TinyML) inference pipelines under thermal constraints. **How I Work (The Guarantee):** When I deliver a Zynq IP core or an ESP32 firmware build, it comes with the "Ground Truth"—benchmark tables (latency, jitter, power draw) and physical oscilloscope verification. You are paying for risk reduction and guaranteed integration, not just lines of code.

Verifications

On time

95%

On budget

96%

Accept rate

91%

Repeat hire rate

15%

Portfolio

Portfolio

3549885
2348442
9451740
8983442
8983433
6318501
3549885
2348442
9451740
8983442
8983433
6318501
4.7 · 70 Reviews
70 Reviews
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Luis A.

5.0

$224 USD

6 months ago

Ai-Drone urgent work

Works very well. Top engineer and web developer

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Jarrod B.

5.0

$530 USD

7 months ago

USB to xInput - game controller project

Very good to work with! was very quick and reliable with responding. Provided revisions fast.

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Luis A.

5.0

$200 USD

2 years ago

Travelling & Shipping advance

Good work. Done quickly.

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Ricky Z.

3.0

$$$

2 years ago

C++ 3D Rendering Optimization and Debugging (archived)

Claimed project would take too much time and canceled; fair, but previous scoping would have been beneficial before project acceptance.

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Enrique G.

2.2

€150 EUR

2 years ago

Project for Rahul S.

Estaba muy ocupado y nunca llego a hacer el proyecto. Creo que le faltaba conocimientos para hacerlo. Y su escusa fue la falta de tiempo.

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Experience

Er.

Jan, 2002 - Present

24 years, 5 months

Self Employed - Electronics & Software Consulting

Jan, 2002 - Present

24 years, 5 months

Working as Independent Contractor. I build from simple projects to Complex Defense Electronics & Software Systems, Aircraft Radios with Acars & ED137b based on Eurocae Standards.

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Indore, India

Jan, 2002 - Present

24 years, 5 months

Education

Bachelor Of Engineering

1995 - 1999

4 years

Flag of

India

1995 - 1999

4 years

Qualifications

Bachelor of Engineering

1999

DAVV

Bachelor of Engineering in Electronics.

1999

Certifications

US English - Level 1

US English

P

Preferred Freelancer Program SLA

Digital Signal Processing (DSP)

Digital Signal Processing (DSP)

Analog Electronics - Level 2

Analog Electronics

Python Level 1

Python

Analog Electronics - Level 1

Analog Electronics

MySQL - Level 1

MySQL

F

Foundation vWorker Member

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