Denis Rybalka

Head of Software development department/ Team Lead at Bergx2 GmbH
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Contact Information
us****@****om
(386) 825-5501
Location
Ukraine, UA
Languages
  • English Native or bilingual proficiency
  • Russian Native or bilingual proficiency
  • Ukrainian Native or bilingual proficiency
  • German Professional working proficiency

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Credentials

  • Learning the Python 3 Standard Library
    LinkedIn
    Aug, 2023
    - Nov, 2024
  • Programming Foundations: Algorithms
    LinkedIn
    Aug, 2023
    - Nov, 2024
  • Programming Foundations: Data Structures
    LinkedIn
    Aug, 2023
    - Nov, 2024
  • Python Object-Oriented Programming
    LinkedIn
    Aug, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Storage Management (Ubuntu)
    LinkedIn
    Jul, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Virtualization (Ubuntu)
    LinkedIn
    Jul, 2023
    - Nov, 2024
  • Prepare for the Linux Foundation Certified System Administrator (LFCS) Exam
    LinkedIn
    Jul, 2023
    - Nov, 2024
  • Python Quick Start (2019)
    LinkedIn
    Jul, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Email Services (Ubuntu)
    LinkedIn
    Jun, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Networking (Ubuntu)
    LinkedIn
    Jun, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Service Configuration (Ubuntu)
    LinkedIn
    Jun, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Operation of Running Systems (Ubuntu)
    LinkedIn
    May, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: User and Group Management (Ubuntu)
    LinkedIn
    May, 2023
    - Nov, 2024
  • Learning Bash Scripting
    LinkedIn
    Apr, 2023
    - Nov, 2024
  • Learning Linux Command Line
    LinkedIn
    Apr, 2023
    - Nov, 2024
  • Linux Foundation Cert Prep: Essential Commands (Ubuntu)
    LinkedIn
    Apr, 2023
    - Nov, 2024
  • Building Monorepos on GitHub
    LinkedIn
    Jan, 2023
    - Nov, 2024
  • Business-Analyse – Grundlagen
    LinkedIn
    Jan, 2023
    - Nov, 2024
  • DevOps with AWS
    LinkedIn
    Jan, 2023
    - Nov, 2024
  • Einführung ins Projektmanagement
    LinkedIn
    Sep, 2022
    - Nov, 2024
  • Build an Ethereum Blockchain App
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 10 Deployment and Maintenance
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 11 Integrating Non-Blockchain Apps
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 5 Your Ethereum Wallet
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 6 Building Your First Ethereum App
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 7 Smart Contracts
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 8 Supply Chain Smart Contract dApp
    LinkedIn
    May, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 9 Testing Ethereum Apps
    LinkedIn
    May, 2022
    - Nov, 2024
  • Become a React Native Developer
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 1 Introduction to Blockchain
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 2 Introduction to Ethereum
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 3 Ethereum Development
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • Building an Ethereum Blockchain App: 4 Ethereum Development Tools
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • Create a CRM Mobile Application with React Native
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • From React to React Native
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • React Native Essential Training
    LinkedIn
    Apr, 2022
    - Nov, 2024
  • Angular Essential Training
    LinkedIn
    Mar, 2022
    - Nov, 2024
  • Angular: API Communication and Authentication
    LinkedIn
    Mar, 2022
    - Nov, 2024
  • CSS: Advanced Layouts with Grid
    LinkedIn
    Mar, 2022
    - Nov, 2024
  • Learning NgRx
    LinkedIn
    Mar, 2022
    - Nov, 2024
  • Learning RxJS
    LinkedIn
    Mar, 2022
    - Nov, 2024
  • Learning Gatsby
    LinkedIn
    Feb, 2022
    - Nov, 2024
  • React: Design Patterns
    LinkedIn
    Feb, 2022
    - Nov, 2024
  • AWS Essential Training for Developers
    LinkedIn
    Jan, 2022
    - Nov, 2024

Experience

  • Bergx2 GmbH
    • Germany
    • Technology, Information and Internet
    • 1 - 100 Employee
    • Head of Software development department/ Team Lead
      • Jul 2016 - Present

      As a Head of the software development department in Bergx2, I'm involved in the following processes: Recruitment and hiring: - Hired more than 50 employees - Integrated HR CRM and automated process - Improving the hiring process by preparing team members to interview candidates - Writing technical documentation and templates for the process - Reviewing and updating technical tasks Learn and development: - Integrated CRM for L&D - Introduced process of performance reviews and OKR sessions for employees - Managed adoption of competence matrix and PDP plans - Created a corporate library Sales: - Integrated sales CRM - Introduced scripts and templates for the sales department - I'm always present at meetings with our prospects if technical expertise is needed Project management - Project estimating from start to the end - Risk management - Project status meetings - Requirement analytics and development DevOps and delivery: - Deployment to dedicated Linux servers - Automation and CI/CD - Containerization with Docker and Kubernetes - App Store and test flight - Google Play Development: - Developing code quality standards - Integration of code quality tools in CI - Performance optimization, memory leaks, caching, code splitting, and lazy loading - Web workers, caching strategies, CDNs, asset optimization and compression Show less

  • Cleveroad
    • United States
    • Software Development
    • 100 - 200 Employee
    • Full-Stack Javascript Developer
      • Mar 2015 - Jun 2016

      Developing custom solutions using AngularJS, Backbone.js Node.js frameworks. Active engagement in the pre-sales phase for incoming projects. Writing project requirements and estimations, defining a suitable solution and frameworks for customers. Forming specification and UML diagrams for developers to reach client expectations. Developing custom solutions using AngularJS, Backbone.js Node.js frameworks. Active engagement in the pre-sales phase for incoming projects. Writing project requirements and estimations, defining a suitable solution and frameworks for customers. Forming specification and UML diagrams for developers to reach client expectations.

  • Microwork.io
    • United States
    • Technology, Information and Internet
    • 1 - 100 Employee
    • Full-Stack Javascript Developer
      • May 2015 - Jan 2016

      AngularJS, NodeJS, Bitcoins, Ionic, Strongloop AngularJS, NodeJS, Bitcoins, Ionic, Strongloop

  • Freelance.RU - Одна из крупнейших русскоязычных бирж удаленной работы.
    • Russian Federation
    • IT Services and IT Consulting
    • 100 - 200 Employee
    • Javascript Developer
      • May 2013 - Mar 2015

      ExtJS, Backbone, NodeJS, PhoneGap, AngularJS, Wordpress, CSS3, HTML ExtJS, Backbone, NodeJS, PhoneGap, AngularJS, Wordpress, CSS3, HTML

Education

  • Ukrainian State University of Chemical Technology
    Magister degree
    2008 - 2012
  • Dnepropetrovsk Polytechnic College
    Specialist degree
    2004 - 2008

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