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  Randolph Matusalem · Dec 15, 2024

  Yev, as I fondly refer to him, demonstrates exceptional technical and professional expertise, had delivered the project on time and within budget. His communication skills are outstanding, fostering clarity and collaboration throughout the project. I eagerly anticipate the opportunity to work with him on future endeavours.

  for Design (Andriod Tablet / Apple iPad) app

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  Frank Van Damme (Alp IT Plus) · Oct 08, 2024

  Fast response.

  for Changes on mobile app

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  Chris G. · Sep 05, 2024

  A consummate professional and always very knowledgeable. I'm grateful to have Yev helping me with my react-native project.

  for Upgrade FrogQuest App to Expo SDK 51

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  Chris G. · Aug 27, 2024

  Yev continues to be a great communicator and trustworthy partner, completing work tasks professionally and when promised. Being a developer myself, I've reviewed his code and can vouch for the high quality. I noticed that he even went a step above in some cases to clean up code which wasn't used. Most developers will just leave it because it's also not technically doing much harm, but the fact that Yev cleans it up is a sign that he's not most developers. He cleans it up because it's the right thing to do and reduces the technical debt of the code base over the long run. I'm glad I chose Yev.

  for Upgrade FrogQuest App to Expo SDK 51

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  Chris G. · Aug 20, 2024

  Very satisfied working with Yev. He adjusted his hours so that he's available during my work day in the US. He diligently and tenaciously worked through the weekend to solve a very difficult technical issue preventing the mobile app from accessing the network in the iOS emulator. He has strong react-native skills, quickly understood the requirements, and completed phase I very quickly. Looking forward to continuing the work in Phase II.

  for Upgrade FrogQuest App to Expo SDK 51

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  Robins International · Mar 03, 2022

  Excellent work

  for Consult/support/coaching for projects

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  Frank Van Damme · Feb 14, 2022

  Thank you for digging into a project not started by you. You delivered a great job!

  for AWS Amplify & mobile development

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  Frank Van Damme · Mar 01, 2021

  John works fast and correct. Nice to work with him

  for AWS Amplify & mobile development

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  Muthu_Vellayan · Nov 10, 2020

  Reviewed my model and added normalization to call to it. It helped the prediction accuracy.

  for Hourly help w/ data science project

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  Киевстар · Oct 16, 2020

  I really enjoyed working with John. He is super efficient and even when I am busy, he would be able to solve problems on his own.

  for iOS Developer Needed to Update Eye Color

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