Łukasz Sielski

Angestellt, Head of Software Development, CMS, MailOnline
London, Vereinigtes Königreich

Fähigkeiten und Kenntnisse

JavaScript
PHP
Java
C#
MySQL
PostgreSQL
MsSQL
JSON
Android
ActionScript
Flash
REST
Facebook
API
gaming
HTML
CSS
TypeScript
nextjs
llm
vite
supabase
vercel
Management
Product
Software
Frontend
Web
Consulting
Technology
Software Development
Information technology
CMS
Start-up
oracledb
MongoDB
Elasticsearch
Redis

Werdegang

Berufserfahrung von Łukasz Sielski

  • Bis heute 7 Jahre und 2 Monate, seit Juni 2018

    Head of Software Development, CMS

    MailOnline

    Reduced need for team on-call from several a week to zero. Introduced detailed monitoring. Removed 70% of high risk and high cost legacy - process ongoing Delivered critical improvements to editorial workflows as quick experiments, improved over time by internal user feedback and the data. Jun 2018 - Oct 2019 - transition to the role and team take-over, listed as Senior Developer

  • Bis heute 11 Jahre und 5 Monate, seit März 2014

    CEO, Co-Founder, Director

    Sielay Ltd

    Delivered experimental projects that helped the current employers at the time. Kept on top of the current technology and challenges, even in stale and slowly moving environments. Published several books in topics ranging from Software Engineering to investigative journalism - to understand the current client.

  • 1 Jahr und 7 Monate, Dez. 2016 - Juni 2018

    Web & Desktop Lead

    PushFor

    Stabilisation and improvement of rushed MVP. Building and managing dev team. Introducing quality processes and guidelines.

  • 1 Jahr, Jan. 2016 - Dez. 2016

    Senior Full-Stack Developer

    Enigma Marketing Services

    Contract Improvement and maintenance of the internal CMS system after the CTO's exit.

  • 1 Jahr und 4 Monate, Okt. 2014 - Jan. 2016

    Lead Developer

    Time UK Inc.

    Managed two titles TrustedReviews and Decanter Introduced Ad-technology systematics, new role created to use my skill set.

  • 11 Monate, Dez. 2013 - Okt. 2014

    System Architect

    Apprecie

    Contract Stabilisation and improvement of failed MVP. Hiring and managing the dev team.

  • 2 Jahre und 11 Monate, Mai 2011 - März 2014

    Branch Manager/Lead Developer

    PureHolidayHomes.com Ltd

    Responsibilities of VP of Engineering / CTO. Maintenance and growth of the product from post-MVP to acquisition. Building and managing team of approx 20. Transitioning the team during the founders exit.

  • 7 Jahre und 9 Monate, Mai 2006 - Jan. 2014

    Founder

    SIELAY

  • 1 Jahr und 2 Monate, Apr. 2010 - Mai 2011

    Consultant, Senior Developer

    Game Factory

  • 1 Jahr, Apr. 2009 - März 2010

    Senior JavaScript Developer

    Nokia Gate5 - Plan Solutions

  • 8 Monate, Aug. 2008 - März 2009

    Application Architect

    WhereAreYouNow Ltd.

    • Generating rules and guidelines for development department. • Documenting and supervising software development projects. • Market research. • Corporate design and guidelines keeping.

  • 1 Jahr und 10 Monate, Nov. 2006 - Aug. 2008

    Software Developer

    WhereAreYouNow Ltd.

    • Developing software for internet service (Visual Basic, Flash, MS SQL). • Developing tool appplications on Windows (C/C++, .NET).

  • 5 Jahre und 8 Monate, Mai 2001 - Dez. 2006

    Webmaster

    Przedsiębiorstwo Komunikacji Samochodowej w Szczecinie Sp. z o.o.

    • Corporate website development and manage. • Technological consultant.

  • 9 Monate, März 2005 - Nov. 2005

    PHP Developer

    Gloport Sp. z o.o.

    • Web services development. • Desktop applications development. • Guiding co-operation with clients.

  • 10 Monate, Mai 2004 - Feb. 2005

    PHP Developer

    GigaNet Sp. z o.o.

    • Web services development. • Desktop applications development. • Guiding co-operation with clients.

  • 2 Monate, Apr. 2003 - Mai 2003

    Web Developer

    InterSoft Sp. z o.o.

    • Web services development.

  • 1 Jahr und 8 Monate, Okt. 2001 - Mai 2003

    Oddech - Youth Culture Magazine

    Publicist and Illustrator

    Publicist and Illustator on non-commercial off magazine.

Ausbildung von Łukasz Sielski

  • 1 Monat, Sep. 2009 - Sep. 2009

    Certificated JavaScript Developer

    W3C Schools

  • 2 Jahre und 9 Monate, Feb. 2007 - Okt. 2009

    Economics and company organisation

    Zachodniopomorska Szkoła Biznesu

  • 4 Jahre und 1 Monat, Okt. 2003 - Okt. 2007

    Economics and company organisation

    University of Szczecin

Sprachen

  • Englisch

    Fließend

  • Polnisch

    Muttersprache

  • Deutsch

    Grundlagen

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