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Marek Publicewicz
Mentor
This mentor has passed the Codementor approval process and is available for hire.
(261 reviews)
US$29.00
For every 15 mins
358
Sessions/Jobs
First 15 mins free: Get the first 15 mins free for your first mentorship session on Codementor when you hire this mentor.
ABOUT ME
24yr+ Full-stack polyglot developer, 10yr+ CodeMentor
24yr+ Full-stack polyglot developer, 10yr+ CodeMentor
- in 2000 as a founding engineer, I helped to build a local version of Morningstar.com from the idea to IPO and scale the development team from 1 to 10; I've administered Linux & FreeBSD servers, managed a complex PostrgreSQL database, wrote triggers and implemented a custom MVC web application using perl,
- in 2005-2010 worked as a senior Java developer for a large international supply chain solutions provider (Syncron - https://www.syncron.com/);
- since 2010 have worked on +100 various consulting projects, using Rails, Python, Django, Flask, PHP, Objective-C, Rust, C++, Typescript, Java, Scala, Odoo and more; clients include Alation (https://www.alation.com/), Lonza (https://www.lonza.com/), Vantage Surgical (https://vantage.healthcare/), FurnitureFinders (https://www.furniturefinders.com/), Tanzle (https://tanzle.com/)
- 25 years of software development experience; full-stack, devops but also focused on the product & user experience/value,
- I'm based in LA
English
Pacific Time (US & Canada) (-07:00)
Joined December 2013
EXPERTISE
10 years experience | 26 endorsements
I know the language inside-out and I usually know how to patch existing libraries. Skilled at things like namespacing (and organizing cod...
I know the language inside-out and I usually know how to patch existing libraries. Skilled at things like namespacing (and organizing code in general), prototypical inheritance, promises, closures, advanced DOM manipulation, AJAX, timeouts & intervals
6 years experience | 6 endorsements
Worked on a large enterprise SaaS codebase, which consisted of over 500 React.js components. I've used Backbone.js models , Flux, Redux a...
Worked on a large enterprise SaaS codebase, which consisted of over 500 React.js components. I've used Backbone.js models , Flux, Redux and React Hooks to manage state of the app. I can help you with:
- understanding the "React Way" of organizing your app into components,
- designing component hierarchy that will represent your problem domain,
- split components into container and presentation components to maximize performance,
- debug state-related errors,
- write tests at both unit and integration levels using frameworks like jest and jasmine
10 years experience | 37 endorsements
Worked with Rails since version 2.x on projects ranging from end-to-end app development, through working with legacy code, performing cod...
Worked with Rails since version 2.x on projects ranging from end-to-end app development, through working with legacy code, performing code reviews, to upgrading old Rails apps and gems to the newest versions
6 years experience
Worked as a senior backend engineer for Alation, helping to scale their initial SaaS product to the current version (serving more than 10...
Worked as a senior backend engineer for Alation, helping to scale their initial SaaS product to the current version (serving more than 100 big enterprise customers). Also worked on smaller projects using both Flask and Django.
10 years experience
I've used C++ to write low-latency system services, using both "classic" C++ as well as modern constructs available in C++11, C++14, C++1...
I've used C++ to write low-latency system services, using both "classic" C++ as well as modern constructs available in C++11, C++14, C++17 and C++20. I know how to optimize code taking advantage of constexpr and compile-time evaluation, how to use template metaprogramming to reduce amount of code and how to structure classes & methods for maximum composability.
I also have experience with configuring C/C++ toolchains and continuous integration systems, using both Bazel and Cmake
5 years experience | 1 endorsement
10 years experience | 13 endorsements
I've worked with PHP since 2005. I wrote Wordpress plugins, Drupal modules, used MVC frameworks like Laravel and CakePHP.
I've worked with PHP since 2005. I wrote Wordpress plugins, Drupal modules, used MVC frameworks like Laravel and CakePHP.
REVIEWS FROM CLIENTS
(261 reviews)
Dan Harvey
September 2024
Fantastic - Marek was extremely helpful, quick to respond and dealt with a whole upgrade issue without any problems at all.
Foad
October 2022
Intro session. Marek seems very knowledgable and asked a lot of great questions and generally seems like an easy person to work with!
Removed User
October 2022
Can quickly understand your problem and will direct you towards a solution.
Adrienne
June 2022
Very skilled with React.js....and the best part is he explains as he goes so I really appreciate that a lot.
Albert R Withers
June 2022
Very helpful in providing design ideas for making web app work offline.
Andrew Burke
May 2022
Marek was able to quickly understand the eccentric codebase I'm working with and gave me some great ideas to help figure things out.
Removed User
May 2022
Marek was very patient and clear, and persevered despite technical issues with the platform. He made suggestions for where to focus (my initial "problem" was quite vague) and was generally very courteous. Would recommend.
Amanda Claas
May 2022
Marek was great to work with and made everything easy to understand. I'll be using him again!
Amanda Claas
May 2022
Marek was extremely knowledgeable and easy to understand. Very pleased!
Removed User
January 2022
Marek can understand your problems even if you have trouble explaining them. Great teacher for those who are trying to learn coding.
SOCIAL PRESENCE
js-pivot
Ruby
2
0
wild-comments
Ruby
1
0
EMPLOYMENTS
Ruby, Java, Javascript, PHP, Objective-C, TDD mentor
Codementor
2013-11-01-Present
Mentoring programmers with over 300 sessions completed. http://codementor.io/ambisoft
Mentoring programmers with over 300 sessions completed. http://codementor.io/ambisoft
PHP
Python
Ruby on Rails
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PHP
Python
Ruby on Rails
Core Data
Test driven development
React
JavaScript
Objective-C
Redux
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Software Consultant
Ambisoft
2005-05-01-Present
Software projects using different technologies, from low-level C-based development of modules for a SIP server, to PHP/perl/RoR web-or...
Software projects using different technologies, from low-level C-based development of modules for a SIP server, to PHP/perl/RoR web-oriented tasks, to complete J2EE-based solutions, to mobile apps for iPhone and Android. Defining requirements, negotiating, designing systems and implementing the defined solutions. Focusing on innovative and non-trivial problems to solve.
Ruby
PHP
Python
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Ruby
PHP
Python
Java
C++
Ruby on Rails
MySQL
PostgreSQL
TypeScript
JavaScript
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Software Developer
FurnitureFinders LLC
2006-02-01-2024-12-01
- re-design, implementation and ongoing maintenance of the customer-to-dealer system targeting the US used office furniture market, - ...
- re-design, implementation and ongoing maintenance of the customer-to-dealer system targeting the US used office furniture market, - development of websites for furniture dealers using a custom Dreamweaver-compliant framework, - implementation of content syndication tools based on Javascript/AJAX/Direct Web Remoting, - implementation of auxiliary tools in PHP/MySQL and Java/Swing for data processing
PHP
Java
MySQL
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PHP
Java
MySQL
Elasticsearch
JavaScript
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