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Usman Rajj
@usmanrajj1
Level 2
Mechatronics Engineer, PCB Designer
Pakistan
French, German, Spanish, English, Urdu
About me
Good Day,
I am Muhammad Usman Rajj a Mechatronics Engineering, my expertise in both electrical and mechanical side.
Check my work on YouTube : Rajj Engineering.
My LinkedIn: Muhammad Usman Rajj
Here are some of my key skills and areas of expertise:
Electrical:
👉Embedded Systems
👉KiCad
👉EasyEDA
👉Fabrication ready PCB designing
👉Arduino IDE + Espressif IDF
👉ESP and Arduino programming
Mechanical:
👉 Solids Works
👉 AutoCAD
If you want Interview I am ready for that feel free to contact
Thanks
Skills
Usman Rajj
$25/hour
Offline •
Average response time: 1 hour
See my services
Printed Circuit Boards (PCB)
I will design circuit, pcb layouts ready for jlcpcb and pcbway
Printed Circuit Boards (PCB)
I will prepare bom and cpl files for existing pcb boards
Want to work on an hourly basis?
Tell Usman Rajj what you need.
$25
/
hourPortfolio
Work experience
Embedded Engineer
MRS Technologies • Full-time
Apr 2024 - Jan 2026 • 1 yr 9 mos
During my previous role as an Embedded Systems Engineer, I was responsible for designing and developing low-power embedded devices from concept to production. Key achievements and responsibilities included: • Designed and developed low-power electronic circuits using microcontrollers such as ESP32, STM32, and Nordic nRF series. • Created complete hardware designs including schematics, component selection, and PCB layouts optimized for reliability and power efficiency. • Developed and maintained firmware for embedded systems, including sensor interfacing, communication protocols (I2C, SPI, UART), and wireless connectivity. • Integrated wireless technologies such as Wi-Fi and Bluetooth for IoT-based applications. • Performed hardware debugging, firmware testing, and system-level troubleshooting to ensure stable and efficient device operation. • Worked closely with manufacturing teams to prepare designs for production, including prototype testing, design validation, and production optimization. • Successfully contributed to multiple products that moved from prototype to full production and are currently being sold in the market. This experience allowed me to gain strong expertise in developing reliable embedded systems, optimizing power consumption, and delivering production-ready hardware and firmware solutions.
101 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 101 Reviews
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qxxq_studios
Repeat Client
Germany
Excellent experience working with this seller on Fiverr! Communication was fast and professional throughout the whole project. They designed my PCB board exactly as requested and paid great attention to detail. The final result looks great, and all files were delivered properly and on time. I highly...
Helpful?
teebeecamx
Repeat Client
Canada
Usman was excellent when we originally engaged I provided him my requirements. He used his skills to determine an even better way to accomplish what I was looking for. I really appreciated his skill level and he provided me all of the deliverables I had requested when the project started. This was my...
Helpful?
dsungermany
Repeat Client
Germany
We had a great meeting, and everything was explained very clearly. He took the time to walk us through all the PCB-related topics in detail, answered all of our questions, and made even the more complex aspects easy to understand. His knowledge, professionalism, and clear communication made the session...
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argetwoof
Repeat Client
Czech Republic
I am very satisfied with the new updated version of my PCB. The work was professional, clear, and exceeded my expectations. Usman Rajj showed a deep understanding of what I needed, communicated politely, and helped improve the design in a very useful way. I am excited to receive the PCB and test it....
Helpful?
vinschni
Repeat Client
Germany
Excellent work on a complex BLE sensor PCB (nRF5340, BMP390, BQ24074 charger). Usman was responsive, iterated quickly across multiple revision rounds, and handled the IP agreement professionally. Layout quality is good and he integrated all feedback without friction. If i was unsure what may be th right...
Helpful?
