b
benjie_expert

Benjie Expert

@benjie_expert
4.4(22)

Level 1

PCB Tech and Debug Expert for RF Audio Electronics and Embedded Systems

Nigeria
English, French
About me
I’ve spent years working on PCB and Audio device projects that need to work beyond just the schematic stage.   I can turn your concepts into production ready circuits. I design low-noise audio electronics, Bluetooth speaker systems, Eurorack synths, and specialized guitar pedals. I also engineer complex multilayer PCBs with high-speed differential pairs, custom RF antennas, and complete Gerber files for manufacturing. Let me build your next innovation. If you already have files, prototypes, or just an idea, send it over and we’ll figure out the best way to move forward.... Read more

Skills

b
benjie_expert
Benjie Expert
$19/hour
Offline • 
Average response time: 1 hour

See my services

Printed Circuit Boards (PCB)
I will design guitar pedal fuzz overdrive audio electronic device rf antenna distortion
4.2(9)
Printed Circuit Boards (PCB)
I will prepare jlcpcb and pcbway gerber files bom pick and place for pcb manufacture
5.0(1)

Want to work on an hourly basis?

Tell Benjie Expert what you need.

$19

/

hour

Portfolio

Work experience

PCB Design Engineer

Eurozone • Freelance

Jan 2026 - Present7 mos

Worked with clients across automotive, audio, and embedded systems to design and troubleshoot PCBs. Handled full design flow from schematic to production, including: Automotive communication systems (CAN, LIN, OBD) Audio circuit design (distortion, signal shaping) PCB debugging and error correction Gerber file preparation for manufacturing Focused on building stable, production-ready designs that pass testing and real-world use.

PCB Troubleshooting & Reverse Engineering Specialist

Independent buyer • Freelance

Jul 2025 - Present1 yr 1 mo

Helped clients fix non-working or poorly designed PCBs. Key work included: Reverse engineering damaged or undocumented boards Identifying circuit failures and design flaws Recreating schematics from physical boards Improving reliability, noise performance, and thermal behavior Worked on projects where previous designs failed and needed correction before production.

Automotive & EV PCB Design Engineer

Eurozone • Freelance

May 2025 - Present1 yr 3 mos

Designed, reviewed, and optimized automotive PCBs including ECU, EV, and BMS systems. Specialized in high-power layouts, EMI/EMC mitigation, thermal design, and production-ready PCB reviews. Converted complex designs between Altium, KiCad, Eagle, and EasyEDA while preserving constraints, libraries, and manufacturing intent. Supported CAN, LIN, OBD communication and embedded firmware-ready hardware.

22 Reviews
4.4

(18)
(1)
(0)
(2)
(1)
Rating Breakdown
  • Seller communication level
    4.4
  • Quality of delivery
    4.4
  • Value of delivery
    4.5
1-5 out of 22 Reviews
Sort By
Most relevant
    E
    image-docs

    engr_alex_8

    US

    United States

    Ongoing collaboration
    5

    Great experience working with Ben on my Arduino-based PCB project. He clearly understood the circuit requirements, handled the routing properly, and delivered a clean board design without needing endless back-and-forth revisions. You can tell he knows what he’s doing and approaches the work with confidence.

    $50

    Price

    3 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No
    M

    mercy_of_g0d

    NL

    Netherlands

    Ongoing collaboration
    5

    I had a great experience working with benji on my guitar pedal PCB project. This is my second time dealing, He clearly understands audio electronics, analog circuits, and the important details needed when designing effects pedals. He helped with the PCB layout, component arrangement, signal flow, and...

    $50

    Price

    3 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No
    1 person found this review helpful.
    O

    oskarlsk

    EE

    Estonia

    2

    Technical questions got confident answers that didn’t answer them. Late on it emerged the work was going through an unnamed third party. A second attempt was also mostly unbuildable.

    $100-$200

    Price

    12 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No
    S

    soozeyung

    MY

    Malaysia

    Ongoing collaboration
    2

    Product provided not up to my expectations freelancer is not honest regarding his expertise and also quite bad interms of communications. However, i provided freelancer with a simpler project not accounting for the amount i paid; however i still provided with low effort work. Time consuming to frequently...

    $800-$1,000

    Price

    6 weeks

    Duration

    Helpful?
    Yes
    No
    C
    image-docs

    codernteight

    GB

    United Kingdom

    5

    ⭐⭐⭐⭐⭐ Highly Recommended! What an outstanding experience working with Benjie!. He truly went above and beyond and outperformed himself on my project. He delivered excellent, high quality work that exceeded my expectations in every way. Benjie was professional, responsive, and attentive to every detail....

    $50-$100

    Price

    6 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No
    1 person found this review helpful.