Graphic designers
Website designers
Mobile app developers
Software developers
3D artists
Illustration
Other popular skills
Working with international freelancers
Where to find the best developers
Do you need a local freelancer?
Building an international team
Featured jobs
Explore our current list of excited top featured projects.
Find contests
Unleash your talent and find freelancer contests to enter.
Website jobs
Graphic design jobs
Data entry jobs
Mobile app development jobs
Internet marketing jobs
Local jobs
Other popular jobs
Find work in different languages
Enterprise
Power your competitive advantage with Freelancer Enterprise.
Field Services
Deliver expertise anywhere in the world at scale - on demand.
AI for business
Let experts in the latest AI technology transform your business.
Freelancer products
Innovation Challenges
Turn challenges into breakthroughs with the largest innovation hub.
Freelancer API
Use the Freelancer API to access a cloud workforce of skilled freelancers.
Local jobs
Get help in any location, anywhere in the world.
Freelancer services
How it works
How to hire the perfect freelancer for your project
Get ideas
How to get started earning money freelancing
Resources
EXPLORE
6.1
6.1
95%
$32 USD / Hour
・
Bulgaria (4:47 AM)
・
Joined on October 12, 2008
$32 USD / Hour
・
- M.S.E.E. with 24 years industry experience. - Telecommucations,Automation industry,RF Transmitters and Receivers, and others. Services provided : - Hardware analog and digital - RF Systems esp32 Espressif and nRF51/52 xxx based . - Embedded Systems based Microchip (PIC), Atmel (AVR,ARM(SAMD20/21,SAMR21 ) ST(STM32) and TI (MSP430) MCPUs and peripheries. - Software Design in C/C++ (CCS Compiler,microC, IAR EWAVR IAR MSP430,AVR Studio 7,Keil ARM,Attolic TRUEStudio , PlatformIO(Visual Studio Code), - Microsoft Visual Studio 2019(C# compiler) for PC app projects. - Schematic and PCB design using Altium Designer , Proteus 7 ,Proteus 8. - Documentation: Specifications, Test Procedures, Hardware & Software Verification and Validation, - Prototyping. - Test Fixtures to test and program boards.
Verifications
On time
100%
On budget
73%
Accept rate
96%
Repeat hire rate
19%
STM32F103C8 tools
Mian_STM32F466_Board_V02
Si7005_module
AIR_Point_SGP30_Sensor
ESP32_CAN_module with external power up to 24 V
ESP32_CAN PCB design
ESP32_CAN PCB design
STM32F103C8 tools
Mian_STM32F466_Board_V02
Si7005_module
AIR_Point_SGP30_Sensor
ESP32_CAN_module with external power up to 24 V
ESP32_CAN PCB design
ESP32_CAN PCB design
Valeri did a good job getting our project started. The budget just wasn't available to continue. Since Valerie doesn't speak english, Google Translate does a good job, but it can be challenging to discuss very technical things.
Share
The best cooperation and the best result I ever had . Valeri lead me through the hole process. He also made videos to make it easy to compare the setups and configuration. I will hire him again!
Share
Andy H.
£555 GBP
He is very good
Share
Florian A.
€760 EUR
It was the first time i hired someone on freelancer and i had a good experience with Valeri. The project was complex and required to clearly define some interfaces between my software code and what valeri programmed. Valeri has a solid background in C programming and communication interfaces. The power electronic part of the project was a bit more difficult to handle and required more effort than expected. Be sure to clearly specify what you want and at least have an idea on how to implement it. In the End, the project is working exactly the way i wanted so I´m happy, that´s the most important thing. Thank you Valeri
Share
I worked very hard to make sure he could perform the work required. He assured me he had the knowledge and skills. He promised to complete the project in 20 days for a certain amount. After 60 days I pressed him harder and offered to work closely with him to finish the work. At this time he indicated that he no longer wanted to work on the project. I've paid him about 50% of the agreed upon price with very little to show for it. I'm now left in the position of being way behind on my commitment, having less money to work with and an upset customer who wants his work done.
Share
Education
Technical University Sofia
1977 - 1982
•
5 years
master, engineer mathematician
Bulgaria
1977 - 1982
•
5 years
Freelancer
About
Terms
Partners
Apps
