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Eric L.

Eric L.

Expert Embedded Engineer | Custom Hardware & Firmware Solutions

Want a prototype that works on the first try? Failed designs cost time and money—let’s nail it from the start. With 25+ years in controls and embedded systems, I deliver production-ready PCBs and custom firmware tailored to your vision. ⚙️ Hardware: I provide design reviews to meet your goals, delivering Gerber files, pick-and-place files, BOMs, 3D images, and STEP files for a seamless build. Specializing in KiCAD, I optimize populated PCBs via JLCPCB (or PCBWay), balancing cost and quality. 💻Firmware: I pair hardware with turn-key firmware, coding in C, Python, and Rust for AVR, Arduino, ESP, STM32, ARM, and more—bare metal or Linux OS. 🚜 Industry Experience: I helped launch John Deere’s K-Series 4WD Loaders, developing vehicle features and supporting production line rollout. My expertise spans factory automation, industrial wireless, IoT, and embedded design, with real-world office and field experience. 📱 Communication: Colorado-based, I’m proactive and reachable via Upwork, email, phone, or text. Expect questions for alignment and suggestions to optimize cost and quality—without late nights or long delays. 💼 What I Bring to Your Project As a hardware and firmware developer, I offer end-to-end support for your electronics design—from concept to production: - 🚑 Project Rescue & Redesign — Revival of stalled or abandoned projects - ✅ Flexible Payment Terms — Tailored to your budget and project needs - 🗣️ Kick-Off Meeting — Clear communication to align on goals from day one - 🛠️ Breadboarding & Prototyping — Rapid proof-of-concept development - 🎛️ PCB Design in KiCAD — Includes full source files and documentation - 📦 Smart Component Selection — Budget-conscious choices without compromising quality - 🔍 Design Review — Thorough validation before fabrication - 🧩 Fitment Checks — 3D files and physical prints to ensure proper enclosure integration - 🏭 Manufacturing Support — I handle the ordering and provide a direct payment link to the PCBA manufacturer - 🔧 Hardware Validation — Functional testing and iterative refinement, including fine-pitch soldering - 🧪 Lab-Grade Tools — Access to oscilloscope, spectrum analyzer, soldering station, bench power supply, and more - 💻 Firmware Development — Support for BLE, WiFi, REST APIs, MQTT, Modbus, Serial protocols, and more - 📱 App Integration — Both local and cloud-based application development - 📘 Documentation and Training Material — Clear guides tailored to your system and workflow - 🚀 Agile-based project management — Adaptive and efficient delivery - 🔁 Ongoing Support — Continuous assistance post-delivery to keep your project running smoothly New to Upwork, I’m building my portfolio with short-term, high-impact projects, offering elite skills at competitive rates. Let’s turn your idea into reality—message me today!

🇺🇸Woodland Park, United States$120/hr100% JSS4.99 (8)Since Mar 2025

Earnings and projects

MRR
$482

Last 6 months ÷ 6

World#79,546 / 412k
🇺🇸Country#11,796 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $2.9k

Total earnings
$7.2k

Billed in all: $7.4k

World#223,985 / 412k
🇺🇸Country#35,541 / 62.1k
Per project
$514

$964 in the last 6 months

World#180,268 / 412k
🇺🇸Country#30,316 / 62.1k
Projects, last 6 months
3
67% fixed33% hourly
World#66,479 / 412k
🇺🇸Country#8,998 / 62.1k
Projects in all
14

Across 16 contracts

50% fixed50% hourly
World#168,283 / 412k
🇺🇸Country#24,151 / 62.1k

Earnings, last 30 days

$7.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$7.2k$7.3k$7.4k$7.5kOct 8Oct 23Nov 7

Skill rankings: Top 15% in Linux

Ranked by MRR among everyone on Upwork with the skill.

  1. #15Atmel AVR54 freelancers · 🇺🇸 #1Top 28%
  2. #24Sensor108 freelancers · 🇺🇸 #12Top 22%
  3. #24ESP8266106 freelancers · 🇺🇸 #2Top 23%
  4. #31EasyEDA120 freelancers · 🇺🇸 #2Top 26%
  5. #64MQTT252 freelancers · 🇺🇸 #7Top 25%
  6. #75Bluetooth244 freelancers · 🇺🇸 #15Top 31%
  7. #131KiCad393 freelancers · 🇺🇸 #26Top 33%
  8. #133Circuit Design544 freelancers · 🇺🇸 #23Top 24%