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Endorsements are very easy to add and you don't really put much effort into them. To endorse my skills, click Endorse me! below (next to the skill) and then choose your reaction 👍😄🎉❤️🚀👀 under the issue.

To endorse other my skills create new issue using the template and then pick your reaction 👍😄🎉❤️🚀👀 under the issue.

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✨ HALL OF FAME

They have already endorsed my skills, recommended, supported or followed me:

Inspiring others to share and explore knowledge in a collaborative community.

• STAY CURIOUS Always wonder. Always explore.
• SPEAK WITH HEART Be your true self.
• WORK SMART Think. Discuss. Design. Automate.
• STRIVE FOR BETTER Reach far. Aim high. Dream big.
• DELIVER WITH QUALITY Move fast. Do it right. Be proud.
• LEND A HAND We are all in this together.

• IT Consulting
• Software Architecture
• Business Process Optimisation
• Development / API Development / Web Development / Microservice Development / Application Development / Cloud Application Development / SaaS Development / Custom Software Development
• Information Security
• Project Management
• Software Testing
• Resume Writing
• Mentoring

• NVC Learning Group Co-Host | Member (2022.09 - 2023.08)
• MENSA Poland Member (2018.02 - now)

• Domain Drivers devstyle.pl
• Legacy Fighter devstyle.pl
• DNA - Droga Nowoczesnego Architekta (The Way of the Modern Architect) devstyle.pl
• Web App Security: attacking & protecting Niebezpiecznik PL 2017.11
• Algorithms II Princeton University on Coursera 2014.12
• Artificial Intelligence National Taiwan University on Coursera 2014.11
• Cryptography II Stanford University on Coursera 2014.11
• Algorithms I Princeton University on Coursera 2014.10
• Cryptography I Stanford University on Coursera 2014.10
• ZF2: Advanced Course Concepts Zend Technologies Ltd. 2013.11
• Advanced Internet Technology IT Media s.c. 2008.08
• Fundamental Internet Technology IT Media s.c. 2008.08

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This is just an example recommendation given on the GitHub. Feel free to give me your own recommendation that will be visible in the ⭐ RECOMMENDATIONS section :)

ma-si

Mateusz is a very contact and organized person. We worked together on various IT projects. During our cooperation, I have always been able to count on Mateusz's commitment and support. I appreciate his willingness to continuously improve and open up to new ideas.

-- Agnieszka | HR Specialist Recruiter

Mateusz is a great and supportive specialist. He knows how to speak with non-developers about development challenges, so it's easy to understand and make a decision. He is based on his technical experience, but also has good aesthetic taste. Full of initiative and engaged. It was a pleasure to work with Mateusz on building my law firm’s website. I am going to be back for its update.

-- Natalia | Legal Counsel HR & Compliance

Mateusz is a really responsible and talented developer. I was very pleased to work with him also because of affability and readiness to help as soon as possible. I highly recommend him!

-- Anna | Web/Front-End UI Developer/Engineer

Mateusz is very experienced and helpful specialists who are good to have on your side.

-- Mariusz | Product Owner & Innovation Facilitator, Agile IT Manager

Working with Mateusz has been a very pleasant experience. Mateusz has very good PHP knowledge, he's very propositive, and he was able to integrate with the existing team without any problem. He was able to start working on existing projects in almost no time and with just the basic background information. He's been of great help to the whole team and I hope we will be able to work together again in the future.

-- Lorenzo | IT Consultant, PHP Developer, GNU/Linux SysAdmin

I have worked with Mateusz for more than 6 months on an interesting yet very demanding pan-european project which needed full scale programmers such as Mateusz. Mateusz is very autonomous, hard working, always delivers what was agreed. His multitasking skills covering the most important programming languages helped the project to accelerate far beyond expectations. Mateusz is a team player and very enthusiastic about the job he has committed for. I do not hesitate to give Mateusz my best recommendations.

-- Maciej | CEO, Managing Director

Mateusz is a responsible and conscientious person. He involves in entrusted tasks - not only performs the duties, but also proposes new solutions that he successfully implements. He is characterized by openness and high awareness in the field of Open Source solutions improving the programmer's workshop.

-- Paweł | CTO

Very creative and open-minded to a new technologies man. He learns quickly and is not afraid of challenges. Very good first found in teamwork. This is not just a typical programmer, as well as creative designer-engineer with a sense of graphics.

-- Marcin | IT Project Manager

You can give me your own recommendation!

Improvement Evangelist | Senior Software Engineer (2022.03-now)

• Designing & programming microservices

PHP 8.3 Symfony Docker IaC Ansible

Project Manager | Software Architect | DevOps Engineer (``-now)

Applicant tracking system (ATS). Application that enables the electronic handling of recruitment and hiring needs. CRM application for managing recruitment processes & maintaining professional contacts.

• Designing & programming microservices

PHP 8 Mezzio Node Angular ElasticSearch RabbitMQ Docker IaC Ansible AWS CI/CD

Project Manager | Software Architect | DevOps Engineer (2021.09-now)

Application for managing investment portfolios.

• Angular client development
• API development
• External APIs integration
• Signals & automation

PHP 8 Node Angular 12 Queue Communication Docker Web Sockets

Budget Module & API microservice

Goal Module & API microservice

Investment Module & API microservice

Project Manager | Software Architect | DevOps Engineer (2021.09-now)

Project management and automation software for managers, freelancers & programmers.

• Angular client development
• API development

PHP 8 Node Angular 12 Queue Communication Docker

Project Manager | Software Architect | DevOps Engineer (2021.09-now)

Task management and automation software for Scrum & Kanban boards.

• Angular client development
• API development

PHP 8 Node Angular 12 Queue Communication Docker

Project Manager | Software Architect | DevOps Engineer (2021.09-now)

Onboarding and automation software for accountants & payroll businesses.

• Angular client development
• API development

PHP 8 Node Angular 12 Queue Communication Docker

Improvement Evangelist | Senior Software Engineer (2020.08-now)

• Creating GitHub actions
• Creating Discord notifications
• JS Programming
• Ansible automation

GitHub Actions Ansible JavaScript

Contract Software Developer (2020.07-2021.12)

Quotes of copyrighted content require the accumulation of the compensation-for-use reserve. Application algorithms calculates reserves for content creators and basic copyright holders based on metrics.

• Angular client development
• API development

PHP 8 Angular 8 Symfony Redis Docker CLI RabbitMQ Elastic Search Jenkins OpenAPI

Contract DevOps Engineer | Senior Software Developer (2020.01-2020.03)

• Setting up CI/CD & Azure
• Designing & developing Node microservices
• Developing React client

Node React TypeScript Docker IaC Azure

Contract Senior Developer (2019.05-2019.12)

Fraud detection system

• Setting up CI/CD & AWS
• API client development & CLI consumer

Symfony CLI GraphQL API Queue AWS

Contract DevOps Engineer | Software Architect | Team Leader (2017.09-2018.08)

Leader in innovative & cost-effective eRecruitment Platform in Switzerland, Germany, Poland & Austria.

• Code review of an existing source
• Security audit & report
• Redesigning architecture
• Code refactoring
• Separate API Architecture
• Performance optimization
• ElasticSearch implementation
• Redis Implementation
• Organizing & automating dev environment and deployment
• Manage deployment of version 2
• PayPal & Stripe payments implementation
• Google Maps API integration for the search location
• Internationalization & translation implementation
• Currency exchange rates API integration
• Geolocation implementation
• Affiliate Marketing implementation for HR clients
• Conducting technical recruitment of Zend Framework 2&3 specialists

PHP 7 Zend Framework 2 Zend Framework 3 Docker Redis ElasticSearch Pug Gulp

New architecture with full text search integrated

Contract Software Architect | Team Leader | Senior Software Developer (2017.03-2017.10)

System that includes client data in order to deliver personalized messages for dynamic videos. Clients are big companies who want to engage in a discussion with their final clients through an innovative media like personalized videos.

• Code review
• Software architecture
• Performance optimization
• Security inspection
• JWT Auth (JSON Web Tokens) integration

PHP 7 Zend Expressive 2 Docker Redis CLI JWT

Contract Senior Software Developer (2016.05-2017.01)

Automotive digital retail platform with a mission to ease and transform the way people select, buy and use cars.

• Creating module architecture in ZF3 and Zend Expressive
• Designing API architecture for contractors
• RabbitMQ implementation
• External APIs integration
• Architecture design of the landing page generation engine
• Internationalization implementation
• Code review

PHP 7 Zend Framework 3 Zend Expressive RabbitMQ Docker Postgres MySQL Amazon S3

Landing Page Engine 2016.12 - 2017.01

Vehicle Comparison Engine

Vehicle Search Engine

Contract Senior Software Developer (2016.11-2017.01)

CRM solution that enables to capture leads, manage their purchase pipelines and retain customers.

Senior PHP Programmer (2015.09-2016.03)

• Development of the new site deployed on March 9, 2016
• Subscription & voucher implementation
• Anti "Dog Pile Effect" solution implementation

PHP 5.6 Symfony 2

Contract Symfony Developer | PHP Programmer (2015.03-2015.08)

• Employment & Training Platform development
• Code refactoring, unit testing

PHP 5.6 Symfony 2 MariaDB PhpUnit Solr Docker

Contract Zend Framework 2 Developer | Tech Leader | Head Developer (2013.05-2015.02)

• Development of an Educational Platform
• Technical leader, Head Developer in Zend Framework Projects

PHP 5 Zend Framework 2 Postgres MySQL

Contract Business Application Developer (2012.11-2013.04)

• Git & PHPUnit implementation
• Stash integration and Git Hooks settings
• Development & maintenance of a telematics application

PHP 5 GIT PhpUnit

Senior PHP Programmer | Business Application Designer | Head ZF2 Developer (2012.10-2012.10)

• Introduction & implementation of new technologies (GIT, Composer, Zend Framework 2)

PHP 5 GIT Zend Framework 2 Composer PostgreSQL

Senior PHP Programmer (2011.08-2012.10)

• CRM systems development
• CRM systems integration
• MemcacheD implementation
• PHPWord implementation

PHP 5 PostgreSQL Memcached Smarty Bootstrap 3 jQuery

PHP Programmer (2011.08-2012.09)

• Development

PHP 4 PostgreSQL

PHP Programmer (2011.10-2012.07)

• Promotion system development

PHP 4 PostgreSQL jQuery

PHP Programmer (2011.08-2011.09)

• Programming of a system supervising the orders

PHP 4 PostgreSQL

PHP Programmer | Web Developer (2005.11-2008.02)

• Implementation of an Internet Payment System - AllPay

PHP MySQL

Warehouseman in the Administration Dept. / Trade Dept. (2005.11-2008.02)

• Programming and implementation of a system that enables to efficiently supervise the orders & administration of the resources.

PHP MySQL