Oleksii Zeleniuk

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Self-employed, Freelance Software Engineer, Oleksii Zeleniuk

Hamburg, Germany

About me

I’m a Freelance (full-stack) software developer based in Hamburg. Since 2009 I work as a software developer for various companies. I focused on architecting and building web-based applications and taking care of infrastructure, test automation, and a little bit of frontend. I started building software with PHP first, but nowadays, it’s not limited to that. I enjoy projects in Node.js, Typescript, Kotlin, Python, etc. I’m especially pleased to work with AWS services. I was born in Prag (Czech Republic), grew up in Kyiv (Ukraine), and currently live in Hamburg (Germany). I do speak Ukrainian, Russian, English, and German languages. On a personal note, I’m into sport (like football, jogging, judo, etc.), traveling, and exploring new music. I also have a blog where I post about my recent projects.

Skills

Node.js
Kotlin
AWS
Typescript
Spring Boot
Serverless Framework
React
Agile
Redux
MongoDB
Architecture
NoSql
JavaScript
GraphQL
Spring Framework
OOP
TDD
DDD
Scrum
Backend
API
Git
Softwareentwicklung
Microservices
MySQL
Kafka
CI/CD
CDK
Terraform
Docker
REST
Backend Entwicklung

Timeline

Professional experience for Oleksii Zeleniuk

  • Current 1 year and 11 months, since Dec 2019

    Fullstack developer

    Oaktree Technologies GmbH

  • Current 2 years and 9 months, since Feb 2019

    Freelance Software Engineer

    Oleksii Zeleniuk

  • 8 months, May 2020 - Dec 2020

    Software Engineer

    Fielmann AG

  • 1 year and 4 months, Feb 2019 - May 2020

    Fullstack developer

    ABOUT YOU AG & Co. KG

  • 3 months, Nov 2019 - Jan 2020

    Backend Developer

    elbstack GmbH

  • 2 years and 3 months, Dec 2016 - Feb 2019

    Senior Backend Developer

    Jimdo GmbH

  • 6 months, Jun 2016 - Nov 2016

    Senior Backend Developer

    Goodgame Studios

  • 2 years and 6 months, Dec 2013 - May 2016

    PHP Developer

    Goodgame Studios

  • 1 year and 4 months, Aug 2012 - Nov 2013

    Senior PHP Developer

    Playtech

  • 1 year and 6 months, Mar 2011 - Aug 2012

    Software Engineer

    Luxoft Ukraine

  • 1 year, Apr 2010 - Mar 2011

    PHP Developer

    Master Systems

  • 11 months, Jun 2009 - Apr 2010

    Web Developer

    FTN Monitor

Educational background for Oleksii Zeleniuk

  • 1 year and 10 months, Sep 2009 - Jun 2011

    Informationstechnologien für Projektierung

    Nationale Technische Universität der Ukraine „KPI“

    Analutiker für Computersysteme

  • 1 year and 11 months, Sep 2008 - Jul 2010

    Military Institute of information and telecommunication systems

  • 3 years and 10 months, Sep 2005 - Jun 2009

    Computer Science

    Nationale Technische Universität der Ukraine „KPI“

Languages

  • English

    Fluent

  • Russian

    Fluent

  • German

    Fluent

  • Ukrainisch

    -

Interests

Triathlon
Football
Travelling

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