Maciej Paprocki, Full-stack Developer in London, United Kingdom
Maciej Paprocki

Full-stack Developer in London, United Kingdom

Member since August 23, 2022
Maciej is a full-stack developer with a background in mathematics and computer science. Throughout his career, he has led technical teams of various sizes and delivered everything from small websites to apps serving 50 million monthly users. He has supervised projects at all development stages, from design through architecture and implementation to user feedback. Maciej has developed close client relationships, helping scale their businesses, sometimes tenfold, with new technological solutions.
Maciej is now available for hire

Portfolio

  • IF AND ONLY IF LTD
    PHP, JavaScript, React, Node.js, WordPress, Symfony, Symfony 6, Webpack, Jest...
  • Hardlyeverwornit
    PHP, JavaScript, jQuery, Symfony, Sylius, Symfony 4, Symfony 5, Symfony 6...
  • Culturetrip
    PHP, WordPress, React, Trellis, Ansible, AWS, Terraform, Symfony, Caching...

Experience

Location

London, United Kingdom

Availability

Full-time

Preferred Environment

PHP, Symfony, WordPress, React, JavaScript

The most amazing...

...thing I've developed is a custom marketplace platform serving thousands of sellers and buyers daily.

Employment

  • Owner

    2017 - PRESENT
    IF AND ONLY IF LTD
    • Sourced clients and managed the business, including contracts, billing, and payments.
    • Built over 20 websites using WordPress, Symfony, Sylius, MySQL, React, SCSS, and APIs, setting up automatic deployments and code quality tools.
    • Developed close relationships with clients over the years and helped scale their businesses, sometimes tenfold, by providing new technological solutions.
    Technologies: PHP, JavaScript, React, Node.js, WordPress, Symfony, Symfony 6, Webpack, Jest, Advanced Custom Fields (ACF), Vagrant, Trellis, SCSS, Docker, AWS, Terraform, Encore, PHPUnit, Optimization, MySQL, Kubernetes, Puppeteer, HTML5, jQuery, Vanilla JS, Git, GitHub, AWS RDS, APIs, Web Hosting, Hosting, Mobile, Software Architecture, Technical Leadership, eCommerce, Mobile Development, Startups, Scalability, Architecture, Planning, Agile, DevOps, Responsive Design
  • CTO and Lead Developer

    2020 - 2022
    Hardlyeverwornit
    • Redeveloped an old website and improved its UX and reliability.
    • Built and managed a team of three back-end developers, a part-time DevOps programmer, a part-time designer, and a product owner.
    • Achieved three times bigger stock acquisition by improving stock intake and user registration processes.
    Technologies: PHP, JavaScript, jQuery, Symfony, Sylius, Symfony 4, Symfony 5, Symfony 6, SCSS, Docker, AWS, Webpack, Encore, PHPUnit, Optimization, MySQL, Kubernetes, Jest, Puppeteer, HTML5, Vanilla JS, PayPal API, PayPal, Git, GitHub, AWS RDS, AWS Elastic Beanstalk, APIs, Behat, puppeteer, Web Hosting, Hosting, Mobile, Software Architecture, Technical Leadership, eCommerce, Mobile Development, Startups, Scalability, Architecture, Planning, Agile, DevOps, Responsive Design
  • Tech Lead

    2019 - 2020
    Culturetrip
    • Designed and implemented the event-driven architecture for multiple teams.
    • Moved the development to Docker, Kubernetes, and Terraform.
    • Implemented testing tools and automated code quality checks.
    • Developed a WordPress proxy service to drastically increase API reliability and response times.
    Technologies: PHP, WordPress, React, Trellis, Ansible, AWS, Terraform, Symfony, Caching, Microservices, Docker, Cypress.io, Puppeteer, Advanced Custom Fields (ACF), Jest, SCSS, JavaScript, Webpack, PHPUnit, Optimization, MySQL, Kubernetes, Node.js, HTML5, jQuery, Vanilla JS, Git, GitHub, AWS RDS, APIs, puppeteer, Web Hosting, Hosting, Mobile, Software Architecture, Technical Leadership, eCommerce, Mobile Development, Startups, Scalability, Architecture, Planning, Agile, DevOps, Responsive Design
  • Lead Back-end Developer

    2017 - 2017
    Shortlist/Stylist Magazines
    • Built an API in PHP and WordPress and provided documentation and front-end libraries to consume the API.
    • Created automation for code quality, testing, and deployment.
    • Implemented caching, prewarming, and invalidation tools to serve thousands of articles for multiple sites with minimal response times.
    Technologies: AWS, PHP, WordPress, APIs, React, SCSS, Docker, JavaScript, Webpack, PHPUnit, Optimization, MySQL, Jest, Node.js, HTML5, jQuery, Vanilla JS, Git, GitHub, AWS RDS, Behat, Selenium, Web Hosting, Hosting, Mobile, Software Architecture, Technical Leadership, Mobile Development, Scalability, Architecture, Planning, Agile, DevOps, Responsive Design
  • Senior Developer

    2014 - 2017
    Bureau for Visual Affairs
    • Gained multiple website mentions on Siteinspire, Httpsternet, and traditional press.
    • Developed a website for the Alexander McQueen: Savage Beauty exhibition at V&A, which became the most visited exhibition in the UK.
    • Contributed to developing websites for the most prominent UK and international artists and art organizations, such as V&A, National Theatre, Alexander McQueen, Marc Quinn, Thames & Hudson, and Sharjah Art.
    Technologies: PHP, WordPress, Expression Engine, JavaScript, React, Microservices, SCSS, Docker, AWS, Webpack, Optimization, MySQL, HTML5, jQuery, Vanilla JS, Git, GitHub, AWS RDS, APIs, Selenium, Web Hosting, Hosting, Mobile, eCommerce, Mobile Development, Scalability, Architecture, DevOps, Responsive Design, Gatsby, Laravel

Experience

  • Hewi | Complete Redesign of an Old Website
    https://hardlyeverwornit.com

    A complete redevelopment of Hardlyeverwornit (Hewi), a Sylius/Symfony-based marketplace, using new technologies. I developed the platform's front and back end and designed most of the functionalities of the minimum viable product. Later I built and managed an internal team to improve the site and develop new features.

  • Vogue and Hewi | Website and Architecture for a Charity Collaboration
    https://www.vogue.co.uk/article/british-vogue-hewi-the-way-we-wore-auction

    A charity collaboration between Vogue and Hewi, which included social campaigns by the most known models in the world. I developed a SlimPHP-based bidding app. There was minimal time due to the nature of the project, and it had to be highly scalable. I consulted on designs and developed the website and architecture. The website was a large success. It survived the spikes in traffic and collected a lot of money for charities.

  • Culture Trip | Development of a WordPress-based Travel Advice Website
    https://theculturetrip.com/

    Development of Culture Trip, a WordPress-based site with travel advice. I led the WordPress team during the development and provided architecture design for other teams. Over my tenure, we drastically increased the back-end response times by offloading specific WP responsibilities to microservices. We also extended WordPress to work with event-based architecture.

    My team supported over 100 writers, working closely with internal support and the editorial team to solve bugs and improve publishing processes. At this same time, our app served 50 million monthly users across multiple channels.

  • Shortlist/Stylist Magazines | Back-end Development of Multiple Sites
    https://www.stylist.co.uk/

    A WordPress multisite-based React app for the Stylist and Shortlist websites and other sites for a large UK publisher. I was the lead back-end developer on the project. I provided some of the DevOps work and helped on the React side of things.

    Over my four-month stint in the company, we published four different sites. They all had varying amounts of customization but ran under one back end and from a singular server. We completed all the development on time, and website stats were considerably better from the first month.

  • Thames & Hudson | Back- and Front-end Web Development
    https://thamesandhudson.com/

    A Magento 2 and WordPress website for Thames & Hudson, one of the world's largest art publishers. I led the back-end development and developed a large part of its front end.

    Using Magento 2 for the transactional part, we provided clients with a good base for eCommerce development. On the other hand, integrating WordPress and the Advanced Custom Fields plugin provided easier content editions and more flexibility in editing content than the Magento tools could offer.

  • Aquascutum | Custom Solutions for a Magento-based Website
    https://aquascutum.com/

    A Magento 1 website for one of the most known English fashion brands. I was a tech lead on a project, which was generally a straightforward transactional site that required few custom solutions, including a localized Chinese UX and Weibo integration, custom stock management, order processing, and reporting integrations. I also managed the horizontal scalability for high-profile collaborations with other brands.

Skills

  • Languages

    PHP, JavaScript, SCSS, PHP 7, CSS, HTML5, Java
  • Frameworks

    Symfony, Sylius, Vanilla JS, Jest, Symfony 4, Laravel, PHPUnit, Cypress.io, Selenium
  • Libraries/APIs

    jQuery, WordPress API, WordPress REST API, React, Puppeteer, Node.js, PayPal API
  • Platforms

    WordPress, Mobile, Docker, Kubernetes, AWS Elastic Beanstalk, Magento 2, Magento 1
  • Other

    Optimization, Symfony 6, Symfony 5, Local Hosting, Cloud, Software Architecture, Technical Leadership, eCommerce, Scalability, Architecture, Responsive Design, AWS, Trellis, PayPal, AWS RDS, APIs, Expression Engine, puppeteer, Web Hosting, Startups, Planning, Encore, Caching, Gatsby
  • Tools

    Vagrant, Amazon SQS, AWS Push Notification Service (AWS SNS), Git, GitHub, Ansible, Terraform, Webpack, Behat, Advanced Custom Fields (ACF)
  • Paradigms

    Microservices, Hosting, Mobile Development, Agile, DevOps
  • Storage

    MySQL

Education

  • Undergraduate Coursework in Mathematics
    2009 - 2011
    Adam Mickiewicz University - Poznan, Poland
  • Undergraduate Coursework in Computer Science
    2009 - 2011
    Adam Mickiewicz University - Poznan, Poland

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