PaweĊ‚ Chalacis

Full-Stack Javascript / NodeJS / React Software Engineer

Experienced programmer working as a technical lead.

Contact details

Auckland, NZ
English - fluent
Polish - native

Knowledge and Skills

Over ten years experience as web developer, web application engineer and instructor. Project management know-how.

Programming Languages

Node.js, Object oriented programming, Javascript, HTML5, CSS3, SQL, pl/pgsql, XML, Bash, TypeScript

Databases & caching

MongoDB, SQLite, MySQL, PostgreSQL, Redis, DynamoDB, AWS RDS


Ethereum, Alchemy, Ethers, NFT Smart Contracts, Crypto based e-commerce


ReactJS, Next.js, Express, jQuery, AngularJS, Bootstrap

Libraries and APIs

Overt 10 years of API driven software development

Server administration

Broad knowledge of Amazon web services as well as custom infrastructure

Operating systems

Mac OS X, Linux

Version Control

Git, SVN

Project Management

Broad and practical knowledge of Scrum project management methodology

Photography & Graphics

Adobe Photoshop, Fashion and product Photography, Food photography, Broad knowledge of technical aspects of photography, Analogue, large format photography


Experience of application development tailored to very heavy traffic, capable to handle thousands of concurrent requests, Broad knowledge of application security vulnerabilities

Work experience

Software engineer

Coreloop - San Francisco / Remote

Full stack software development in NodeJS / Mongo / React stack with Ethereum crypto features for SF based startup

  • World Eternal Online - NextGen MMO with blockchain integration


Delft - Auckland, NZ

Making things happen.

  • MX Endurance - A Global endurance network website
  • My Rover - digital pet vaccination record
  • Your Cinema - Cinema webistes engine

Technical Lead

Screen Enterprises Ltd. - Auckland, NZ

Taking care of the whole company codebase as well as technical department organization.

  • Fatso - online DVD rental service
  • Fanpass - Sky Sport Online

Senior Software Engineer

Screen Enterprises Ltd. - Auckland, NZ

Taking care of the whole company codebase as well as technical department organization.

Software Engineer

GREE UK - London, UK

Creation of web based administration and support tools for games being developed. Mobile games backend development. Cordova/HTML5 application development.

  • Sport themed card battle game (under NDA, can't say more)
  • Internal Game Portal - set of support tools written in Node.js / HTML
  • NFL Shuffle - HTML5 iOS card battle game

Senior PHP Engineer


Zend Framework and HTML5 mobile optimized applications development. Blackberry WebWorks app development. AWS based server architecture design, implementation and maintenance.

  • HTML5 Localisation based voucher application for MyVoucherCodes
  • MyVoucherCodes Blackberry app
  • Node.js + MongoDB caching engine

Web Application Engineer

RED8DIGITAL - Warsaw, Poland

Zend Framework / PostgreSQL applications development and maintenance. Design and Development of software framework dedicated to Facebook applications. Lead a series of IT training for developers and account managers.

  • KFC websites for few European countries
  • website backend
  • OKI loyalty program
  • Metaxa campaign, we've sent couple of people for 1 year long holidays!
  • Samsung photography contest, we've closed the Tube station for a photo shoot

Web Application Engineer

NOVEM SP. Z O.O. - Cracow, Poland

Statistical software development and maintenance, creating web pages for advertising campaigns, AWS based server infrastructure maintenance, software design.

Webmaster / Web Application Engineer

INTERIA.PL S.A. - Cracow, Poland

Support one of the largest website in Poland ( Front-end development, support of advertising campaign software. Lead a series of IT training for developers and webmasters.

  • - first online live TV broadcast website in Poland
  • Domain registration and management website front-end

Web Application Engineer

SELF EMPLOYED - Cracow, Poland

Full web based applications coding as a freelancer

  • Supersklep - online store with a monthly turnover of 150.000 Euro. Online software was connected to company warehouses and stores, giving real time stock information.
  • Neodom - online website for real estate agency. Database was synchronised across few 3rd party websites.

Web Application Engineer

INSIGNIA - Cracow, Poland

Development of CMS, CRM and affiliate programs. Full websites coding.


UNIDRUK - Cracow, Poland

Support for business page, full websites coding, development of CRM software.


Computer Science

School of Banking and Management, Cracow, Poland

Computer science in economics

Academy of Economics, Cracow, Poland