Belgium旗标 Bruges, Belgium
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Hello! I have rich experiences in IoT/Bluetooth/Multimedia devices and iOS/Android/Windows/ Linux/MacOS app development, especially in the field of Wireless and Multimedia communication. My specialties are: • IoT prototyping • BLE/WiFi/LoRa/GPS communication • Firmware development/PCB Design • Embedded Linux • Video/Audio encoding/streaming/transcoding My experiences are: • Bluetooth: nRF51822, nRF52832, nRF52840, DA14580, DA14583, DA14585, CC2541, CC2640, BLE112, BGM113, CSR8670 • Wi-Fi: ESP8266, ESP32 • MCU: PIC, ATMel, STM32, Raspberry pi • Video/Audio Processor: Hi3516, Hi3518, Hi3519, VS1063, VS1005, ADSP, ADAU, SAM3816, SAM5704 • App: iOS/Android Bluetooth App, Video Encoding/Transcoding/Streaming • Video Codec: H.264/AVC, H.265/HEVC, VP8/VP9, MPEG2/MPEG4, VC1/WMV3 • Audio Codec: MPEG Audio, MP3, AAC, AC3, DTS, OGG • Protocol: RTP, RTSP, RTMP, MMS, MPEG DASH, HLS, SIP, SDP • Open Source: FFmpeg, VLC, x264, x265, Live555, OpenCV
$50 USD/hr
  • 100%完工率
  • 99%按预算
  • 99%按时性
  • 6%重雇率



  • Hans N.的图片 Develop embedded STM32 4G modem and Vending firmware $2720.00 USD

    “Johannes is a skilled embedded developer. He is good at communicating and giving suggestions. We will be happy to use him again on future projects.”

  • Duncan M.的图片 Joystick firmware for Nordic nRF52 $3450.00 CAD

    “Very knowledgeable and responsive to our needs. Would definitely hire again.”

  • Charlie J.的图片 Project for Johannes V. -- 2 $2900.00 USD

    “I highly recommend Johannes V, we will be using him for our ongoing projects. He provides extremely good quality work and is very skilled, often providing helpful improvements on the project and delivering excellent work within the discussed timeframes.”

  • Hans N.的图片 Develop a Vending MDB lib for STM32 embedded device $6200.00 USD

    “We have hired Johannes for embedded STM32 development. He is a great developer that completed all the tasks with high quality and speedy deliveries. He is open minded and easy to communicate with and suggests improvents where needed and have good ideas on how to solve the tasks given. We will definitely hire him again for future projects.”

  • Yin W.的图片 Arduino Expert $118.00 USD

    “Johannes is very good embedded expert. He completely is solved all the specifications. I will continue to work with him.”

  • Dan C.的图片 Audio Player (mp3 and streaming) working on Raspberry PI €2500.00 EUR

    “Good understanding of specifications, proactive attitude, flexibility in finding the solutions applied on the specific use of the project they are working on.”


independent engineer

Jan 2013 - Dec 2018 (5 years)

industrial design of products devellopment of website's, apps managment of organisations

industrial designer

Jan 2009 - Dec 2012 (3 years)

industrial design of consumer products


Jan 2005 - May 2008 (3 years)

industrial design of high speed camera's manage and perform devellopment of website's


Master Product Engineering Mechanica

2000 - 2005 (5 years)


master industrial design (2005)


high degree into industrial design

mba polymers (2006)

KHBO Oostende

master engineering degree into polymers


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