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Vadim Z.

Vadim Z.

Kyiv, Ukraine
100% Job Success
Top Rated Plus

Expert-Vetted | CTO & Architect | Advancing Business with IT Solutions

— Among the Top 1% of Upwork Freelancers — Top Rated Plus Freelancer & Expert Vetted Freelancer With over 14 years of experience in software development, including the last 5 years as a CTO at licensed platforms, I bring a wealth of knowledge and expertise to each project. My passion lies in creating efficient, cost-effective solutions tailored to each business's unique requirements. I specialize in developing software that is both high-performing and low-resource intensive, and I'm always looking for opportunities to collaborate with clients on a long-term basis. I have extensive experience with GoLang, Node.js, JavaScript, ReactJS, PHP, Laravel, WordPress, MySQL, PostgreSQL, MongoDB, gRPC, Kafka, Redis, LESS, ElasticSearch, OpenAi, and ChatGPT. Additionally, I am well-versed in managing systems on Kubernetes, Docker, and Linux. With my riched experience, I bring a deep understanding of the unique challenges and requirements of different types of businesses, and I am well-equipped to help my clients scale their operations and achieve their goals. To help my clients get the most out of our collaboration, I offer a risk-free trial period. If you're looking for a skilled software architect and engineer with experience in the trading industry to help you scale your business with innovative IT solutions, please don't hesitate to reach out.
Rating is 5 out of 5.
5.00 Apr 7, 2022 - Nov 29, 2022

"Vadim did an absolutely phenomenal job on this project even though the scope and requirements were extremely limited. He went over and above all of the other freelancers we hired and continued to answer questions and provide useful technical input even after the "basic" requirements of the project had already been completed. Would definitely hire him again!"

"Thanks!"

Private earnings
Rating is 5 out of 5.
5.00 Nov 17, 2022 - Nov 21, 2022
Private earnings
Rating is 4.85 out of 5.
4.85 Jul 13, 2020 - Jan 14, 2022

"He re-coded part of existing features we already Had previously and those features now Works better,Then we created a new component together "Bonus Account" and here he express his best skills(There were calculations,Risk management,Round flow etc.) He started with Cleaning and writing in Memory some complex components,we are still Testing it."

Private earnings
Rating is 5 out of 5.
5.00 Feb 5, 2021 - Feb 6, 2021
Private earnings
Rating is 5 out of 5.
5.00 Jul 6, 2020 - Jul 20, 2020
Private earnings
Rating is 5 out of 5.
5.00 May 27, 2020 - May 28, 2020

"He did a very good job, and the best very fast! I recommend!"

Private earnings
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Skills

  • Node.js
  • PostgreSQL
  • Golang
  • MongoDB
  • React
  • MySQL
  • Amazon Web Services
  • Web Development
  • Kubernetes
  • Go
  • Elasticsearch
  • Cryptocurrency
  • Artificial Intelligence
  • Blockchain
  • API Development

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