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Aleš Krajník

Employee, Team Lead, idealo internet GmbH

Degree: MSc, Staffordshire University

Berlin, Germany

Skills

PHP
JavaScript
MySQL
ECMAScript
Node.js
Kubernetes
Docker
Apache
Nginx
Engineering Management
CoffeeScript
TypeScript
Zend Framework
Symfony
MongoDB
Linux
AWS
Bash
Continuous Integration
Scrum
Agile Software Development
Cascading Style Sheets (CSS)
Grafana
HTML
RabbitMQ
Redis
Swoole
TDD
DDD
Firebird
Elasticsearch
Software Development
Engineering

Timeline

Professional experience for Aleš Krajník

  • Current , since Jan 2021

    Team Lead

    idealo internet GmbH

  • 1 year and 1 month, Dec 2019 - Dec 2020

    Team Lead

    Productsup

  • 1 year and 7 months, Feb 2018 - Aug 2019

    Engineering Manager

    OLX Group

    Led a cross-functional team of PHP and Frontend engineers, SREs and machine learning specialists, maintaining and innovating the core fraud- prevention system, used across 48 different OLX sites and analysing over 20 Mils. of user actions every day.

  • 1 year and 9 months, May 2016 - Jan 2018

    Senior Software Engineer

    OLX Group

    Led design and implementation of a behavioural rule-based fraud-prevention system "Fraud Rules", a part of the core anti-fraud system, successfully adopted by local moderator teams. Maintained and innovated the core fraud-prevention system, used across 48 different OLX sites and analysing over 20 Mils. of user actions every day.

  • 1 year and 7 months, Oct 2014 - Apr 2016

    Software Engineer

    Rocket Labs

    Maintained and developed the SellerCenter back-office platform used across various Rocket Internet's ventures.

  • 6 years and 5 months, May 2008 - Sep 2014

    Business owner

    Craynic, s.r.o.

    Ran a company providing web development services with a focus on informational systems. Providing services for companies such as Prague Airport, MEDIA Factory Czech Republic, DC Service, PhotoWorx, PFA Service, virtual-zoom. Focused on complex web projects such as online booking systems with integration to payment systems, backend administration interfaces and web applications.

  • 7 months, Feb 2014 - Aug 2014

    Frontend Developer

    ARBES Technologies, s.r.o.

    Implemented product and security features for a SPA frontend of an online banking for J&T Bank.

  • 2 years and 1 month, Apr 2006 - Apr 2008

    Business owner

    MEDIA FACTORY Czech Republic, a.s.

    Led engineering efforts in a renowned Czech web agency. Designed and developed a core CMS platform. Oversaw engineering, website security, hosting and server technologies. Responsible for education and coordination of the engineering team.

  • 1 year and 5 months, Nov 2004 - Mar 2006

    Team Leader

    GLOBE INTERNET, s.r.o.

    Led a team of PHP engineers, responsible for engineering of websites and e-commerce solutions for renowned companies in Czech Republic (Hypoteční banka, Modrá Pyramida). Designed and developed a core CMS platform.

Educational background for Aleš Krajník

  • 3 years and 1 month, Oct 2016 - Oct 2019

    Internation Business Management

    Staffordshire University

  • 3 years and 9 months, Sep 2000 - May 2004

    Computer Science

    Charles University in Prague

Languages

  • English

    Fluent

  • Czech

    First language

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