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l3kengineering

and invite this freelancer
Flag of Brazil Valinhos, Brazil
It's currently I'm Online! I'm Offline
Member since January, 2014

I'm an Electronic Engineer with PhD in Control Systems. I were the CTO from 3 previous companies, but now, working alone, I do do what I like: to design special products from the idea to the finish product.

4.9 / 5
4.4 / 10

@l3kengineering

  • 75%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 7%Repeat Hire Rate

Recent Exams

  • Employer Orientation Top 1%
    90%
  • Freelancer Orientation Top 2%
    85%
  • C 1 Top 5%
    90%
  • Digital Electronics Level 1 Top 6%
    78%
  • Analog Electronics Level 1 Top 20%
    78%
  • Numeracy 1 Top 46%
    90%
  • US English Level 1 Top 75%
    75%
  • Spanish 1 Top 76%
    83%
  • Portugese 1 Top 83%
    88%

Top Skills

  • Electrical Engineering
  • PCB Layout
  • Electronics
  • Microcontroller
  • Circuit Design
  • Engineering
  • Arduino
  • Wireless
  • Product Design
  • Instrumentation
  • Robotics
  • RTOS
  • Remote Sensing
  • Digital Design
+ show more

Recent Reviews

  • image of elukac PCB layout for DCMP €180.00 EUR

    “The contact and availability of the freelancer were excellent. Its suggestions were useful and welcome.”

    elukac Flag of Belgium 3 months ago.
    • Electrical Engineering
    • PCB Layout
  • image of gerardshaw KiCAD to Eagle project conversion $263.00 USD

    “project closed, no issues”

    gerardshaw Flag of United Kingdom 4 months ago.
    • Electronics
    • PCB Layout
  • image of gerardshaw Changing CE panel building specification to American UL $147.00 USD

    “Very good work as always, would use again.”

    gerardshaw Flag of United Kingdom 4 months ago.
    • Engineering
    • Electrical Engineering
  • image of olsky PCB Design - Footprint (symbol) design for EAGLE v6 / 7 $24.00 USD

    “Thank you for the awesome and just great work! much faster then expected. Well be back with more work :)”

    olsky Flag of Germany 4 months ago.
    • PCB Layout
  • image of sapharow RS485 and RGB driver [Sealed]

    “I like that freelancer”

    sapharow Flag of Australia 9 months ago.
    • Electronics
    • Microcontroller
    • Electrical Engineering
    • Embedded Software
    • PCB Layout
  • image of jboavida Load cell amplifier update $200.00 USD

    “Great freelancer. Very knowledgeable. Very good communication.”

    jboavida Flag of Portugal 10 months ago.
    • Electronics
    • Microcontroller
    • Electrical Engineering
    • PCB Layout
    • Hire me
    • Circuit Design

Experience

Electronic Engineer

Sep 2013

CTO - Senior Eng.

Jun 2008 - Aug 2013 (5 years)

CTO - Senior Eng.

Jun 2008 - Sep 2013 (5 years)

CTO - Senior Eng.

Apr 2001 - Jun 2008 (7 years)

Product Engineer

Dec 1999 - Mar 2001 (1 year)

Electronic Technician

Oct 1996 - Dec 1998 (2 years)

Education

Electronic Engineer

2003 - 2008 (5 years)

Design

2009 - 2011 (2 years)

Certifications

Brazil Masters (2001)

Intermediary English (2012)

Publications

FlexFuel - The phenomenon of conversion

How to convert gasoline cars to run with gasoline and ethanol using my electronic module.

Professional Password Module

A simple and effective password module with CMOS only.

Touch Dimmer for Abajour

A circuit to dimmer the light intensity from an abajour with capacitive touch.

Professional Audio Amplifier

A 110W RMS professional audio amplifier with low distortion.

Badges

  • Smooth Operator

    Complete 10 projects on time.
  • The Deal-Closer

    Get awarded 95% of projects (for over 5 projects)
  • The Rocketeer

    Sponsor 20 bids.
  • The Prospector

    Post your first project.
  • The Critic

    Post 10 Reviews.
  • The Economist

    Complete 10 projects on budget.
  • Backup plan!

    Verify a backup payment method
  • Quick Pick

    Award your project within 24 hours of posting
  • The Giver

    Award your project to a Freelancer.
  • Feedback Guru

    Receive 10 reviews
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • Smart Money

    Create 10 Milestones.
  • The Regular

    Log in every day for 1 week.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • The Seeker

    Bid on 20 projects.
  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.
  • Know-It-All

    Pass a freelancer orientation exam
  • Know-It-All

    Pass a freelancer orientation exam
  • Spanish Qualified

    Pass the Spanish Exam (Level 1)
  • Spanish Qualified

    Pass the Spanish Exam (Level 1)
  • Nine-to-Fiver

    Win a project and accept the offer.
  • Portuguese Qualified

    Pass the Portuguese Exam (Level 1)
  • Look-At-Me

    Highlight 1 bid.
  • The Perfectionist

    Edited a bid.
  • The Speculator

    Sponsor 1 bid.
  • Pro-Profile

    Complete your Profile 100%.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • Proven Identity

    Complete your Email, Phone and Payment verifications.
  • The Verified

    Verify your payment method
  • The Deal-Closer

    Get awarded 95% of projects (for over 5 projects)
  • Smooth Operator

    Complete 10 projects on time.
  • The Rocketeer

    Sponsor 20 bids.
  • The Economist

    Complete 10 projects on budget.
  • Backup plan!

    Verify a backup payment method
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • Smart Money

    Create 10 Milestones.
  • All Star

    Receive a 5-star rating for a project.
  • Know-It-All

    Pass a freelancer orientation exam
  • Know-It-All

    Pass a freelancer orientation exam
  • The Prospector

    Post your first project.
  • The Critic

    Post 10 Reviews.
  • Quick Pick

    Award your project within 24 hours of posting
  • The Giver

    Award your project to a Freelancer.
  • Feedback Guru

    Receive 10 reviews
  • The Regular

    Log in every day for 1 week.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • The Seeker

    Bid on 20 projects.
  • The Adventurer

    Complete your first project.
  • Spanish Qualified

    Pass the Spanish Exam (Level 1)
  • Spanish Qualified

    Pass the Spanish Exam (Level 1)
  • Nine-to-Fiver

    Win a project and accept the offer.
  • Portuguese Qualified

    Pass the Portuguese Exam (Level 1)
  • Look-At-Me

    Highlight 1 bid.
  • The Perfectionist

    Edited a bid.
  • The Speculator

    Sponsor 1 bid.
  • Pro-Profile

    Complete your Profile 100%.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • Proven Identity

    Complete your Email, Phone and Payment verifications.
  • The Verified

    Verify your payment method