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Shenglin

@shenglin0617

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5.0
2

2.6

2.6

100%

Electronics/Embedded System/PCB/FPGA/Firmware

$20 USD / Hour

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China (2:22 AM)

Joined on April 20, 2026

$20 USD / Hour

I am a China-based, production-ready embedded systems engineer who bridges the gap between firmware, PCB, and FPGA design — with deep manufacturing expertise to take your IoT product from prototype to mass production at scale. With 10+ years of hands-on experience and deep integration with JLCPCB, PCBWay, and SMT assembly lines, I don't just design prototypes. I design for real manufacturing. ⚡ Core Strengths Embedded & IoT – STM32, ESP32, nRF52, FreeRTOS, MQTT, BLE, LoRaWAN Firmware – C/C++/Rust, bare-metal, RTOS, OTA, ultra low-power PCB for Manufacturing – JLCPCB, PCBWay, upto 24-layers, DFM rules, panelization, component sourcing FPGA – Verilog/VHDL, Xilinx/Intel, custom co-processing 🏭 Production-First Mindset ✅ JLCPPCB/PCBWay ready – Gerbers, BOM, CPL files, pick-and-place optimization ✅ Component sourcing – LCSC, Taobao, direct factory channels (cost down 30–50%) ✅ Assembly-line friendly – Test points, fiducials, thermal relief, footprint validation ✅ Firmware for mass production – Calibration, serialization, DFU, factory test modes 🇨🇳 Based in China. Built for scale. No translation delays. No component shortages panic. No "will this even assemble?" I speak manufacturer language — and I get it done. 🚀 Let’s go from prototype to production — fast. Need a JLCPPCB-ready design, a factory-testable firmware, or a full IoT product shipped? Message me. Let’s manufacture.

Verifications

On time

100%

On budget

100%

Accept rate

100%

Portfolio

Portfolio

13921311
13921248
13921311
13921248
5.0 · 2 Reviews
2 Reviews
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Yongjie

5.0

$350 USD

9 minutes ago

850 nm IR Controller Design

Experty in circuit design. Good communication to clearly state the steps to rearch the design goal. Very fast respond. He can go from idea to deviver finished product.

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David

5.0

$160 USD

2 months ago

Water level sensor board prototype

Shenglin did exactly what I needed and turned it around in a day. Will definitely be working with him again!!!

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Flag of INDIA

Manoj Kumar

5.0

$40 USD

2 months ago

Embedded Systems Engineer Needed

Shenglin is professional. Fast delivery. Good quality. Surely recommend for embedded projects.

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Experience

Embedded System Engineer

Jun, 2021 - Sep, 2024

3 years, 3 months

Geniatech

Jun, 2021 - Sep, 2024

3 years, 3 months

No Description Provided

Jun, 2021 - Sep, 2024

3 years, 3 months

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