Skip to content
BackNov 7
Muhammad Umer S.

Muhammad Umer S.

Full Stack Embedded Engineer | ESP32 | OBD-II | CAN | UL1998 | STM32

I deliver complete automotive products from embedded firmware and hardware bring-up through mobile/web applications to safety certification. One point of contact, full technical ownership, shipped to production. In the past 7 years, I have shipped production OBD-II firmware for STM32, led two successful UL1998 safety audits, and delivered customer-tested automotive diagnostics applications (Android, iOS, Web). I take full technical ownership of every product I build firmware, apps, cloud, enclosure and I don't stop until it's validated in the customer's hands. What I deliver: End-to-End Automotive Product Development I own the entire product stack. Need a fleet management device with firmware, mobile apps (Android/iOS), a web dashboard, and a mechanical enclosure? I deliver it all. I lead the technical execution across embedded firmware, mobile applications (Flutter, Android native), web platforms (MERN stack), and mechanical/enclosure design coordinating a proven team of specialists under my technical direction. You get one partner who owns the whole product, not five disconnected contractors. OBD-II & Vehicle Diagnostics Firmware I developed a complete ELM327-compliant OBD-II interpreter firmware on STM32F072 from scratch supporting CAN (ISO 15765-4), K-Line (ISO 9141/14230), J1850 VPW, and J1850 PWM. Built on custom hardware, prototyped on evaluation kits, validated with Freematics OBD-II emulator and Saleae logic analyzer, and tested on real vehicles. The product is now in production. Functional Safety & Compliance (UL1998, IEC60730, UL1973, ISO26262) I led two full UL1998 certification programs, Intrinsic Power (EVSE controller) and Lithiumwerks (BMS). I drove the internal safety audit, created all artifacts (FMEA, FTA, safety requirements, architecture, test plans), represented the company during the UL audit, and incorporated auditor feedback. Both programs achieved successful certification. Automotive Diagnostics & Fleet Management Applications Built and shipped multiple OBD-II diagnostics and fleet management apps (Android/iOS), live sensor gauges, DTC scanning, TPMS monitoring, BLE connectivity, shop finders, and web dashboards. Tested by real customers in their vehicles with verified results. I handle the full stack: firmware on the device, mobile app on the phone, and web platform for fleet operators. Hardware Bring-Up & Product Development From schematic review and mechanical enclosure design to board bring-up, firmware porting, protocol validation, and production testing. I prototype early on evaluation kits so the firmware is 70% ready before custom hardware arrives. This saves months of development time. CAN Bus, K-Line, J1850, and Vehicle Protocol Expertise Deep hands-on experience with automotive communication protocols. I write the drivers, validate with logic analyzers, test on emulators, and verify on real vehicles. Whether you need a complete automotive product built end-to-end, OBD-II firmware for your hardware, safety certification for your embedded system, or a fleet management platform with apps and a web dashboard, I am the technical partner you are looking for. I own the product, you own the business.

🇵🇰Multan, Pakistan$50/hr100% JSS1.41 (2)Since Jun 2020

Earnings and projects

MRR
$214

Last 6 months ÷ 6

World#111,013 / 412k
🇵🇰Country#15,001 / 52.9k
Revenue, last 30 days
$0

Last 6 months: $1.3k

Total earnings
$17k

Billed in all: $18k

World#153,658 / 412k
🇵🇰Country#15,499 / 52.9k
Per project
$2.8k

$321 in the last 6 months

World#58,660 / 412k
🇵🇰Country#4,100 / 52.9k
Projects, last 6 months
4
100% fixed0% hourly
World#51,815 / 412k
🇵🇰Country#10,787 / 52.9k
Projects in all
6

Across 9 contracts

78% fixed22% hourly
World#250,292 / 412k
🇵🇰Country#39,844 / 52.9k

Earnings, last 30 days

$17.6kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$17.2k$17.4k$17.6k$17.8kOct 8Oct 23Nov 7

Skill rankings: Top 24% in Flutter

Ranked by MRR among everyone on Upwork with the skill.

  1. #6Connected Vehicles11 freelancers · 🇵🇰 #4Top 55%
  2. #7Fleet Management Software15 freelancers · 🇵🇰 #5Top 47%
  3. #15CAN Bus61 freelancers · 🇵🇰 #4Top 25%
  4. #16Safety Engineering47 freelancers · 🇵🇰 #3Top 34%
  5. #24Fleet Management57 freelancers · 🇵🇰 #8Top 42%
  6. #44Automotive Engineering140 freelancers · 🇵🇰 #5Top 31%
  7. #67FreeRTOS200 freelancers · 🇵🇰 #18Top 34%
  8. #104Hardware Prototyping267 freelancers · 🇵🇰 #20Top 39%