Jacek Z.

Jacek Z.

PHP Developer

Top performer 10/10
Poland
Trusted member since 2021
16 years of experience

With a strong background in leadership, Jacek spent three years as a technical team leader, where he successfully guided teams and ensured seamless project execution. His open-minded approach, organizational skills, and problem-solving mindset enable him to tackle complex challenges effectively.

During his studies, Jacek was selected for the prestigious Google Summer of Code program, distinguishing himself among hundreds of applicants and further demonstrating his technical expertise and dedication to software development.

Main expertise

MySQLMySQL16 years
ScrumScrum10 years
AgileAgile10 years
GitGit15 years
13+

Experience7

Musti Group

Senior Software Developer

Musti Group
Pets and Animal Care
Jun 2021 - Mar 2024 · 2y 9m
  • Participated in the development of an eCommerce platform, creating new functionalities using PHP and JavaScript.
  • Transitioned to rebuilding the platform with React.js and Next.js to improve performance and user experience.
PHPPHP
HTMLHTML

Senior Software Engineer

Teams By Sunscrapers
Information Technology (IT) and Services
Mar 2021 - Jun 2021 · 3m
  • Served as Lead Backend Developer for a US-based startup focused on helping people fall asleep.
  • Managed the backend of a mobile application that allowed users to join live sleep sessions with a guide to help them relax and fall asleep.
  • Built functionality to serve live stream URLs from AWS and handle video transcoding after each session.
  • Developed a CMS for managing sleep sessions and user accounts.
LaravelLaravel
HTMLHTML
Trimetis Services

Senior Software Developer

Trimetis Services
Information Technology (IT) and Services
Apr 2020 - Jan 2021 · 9m
  • Developed a web application that allowed users to record video testimonials.
  • Designed and implemented major new features for an internal CMS.
PHPPHP
LaravelLaravel
HTMLHTML
WordPressWordPress
Jakdolece

Founder / Lead Developer

Jakdolece
Travel Booking
Jan 2020 · 6y 2m
  • Fully coded Jakdolece.pl, a start-up offering unbeatable travel deals for flights and hotels worldwide, from frontend to backend.
  • Leveraged data analysis to ensure the platform continuously updated with the most affordable prices, keeping all offers competitive around the clock.
PHPPHP
YiiYii
Data Analytics

Technical Team Lead/Senior SoftwareEngineer

Fibar Group
Home Automation
Aug 2014 - Mar 2020 · 5y 7m
  • Led a team of programmers.
  • Planned implementation schedules and prioritized tasks.
  • Developed solution designs and architecture.
  • Built and maintained Manufacturing Execution System (MES) and Enterprise Resource Planning (ERP) systems.
  • Maintained traceability and tracking throughout the manufacturing process.
  • Built and improved REST APIs.
PHPPHP
YiiYii
LaravelLaravel
HTMLHTML
CodeIgniterCodeIgniter
Merixstudio

Web developer

Merixstudio
Information Technology (IT) and Services
Aug 2012 - Aug 2014 · 2y

His main tasks included PHP5 (Drupal 7), Python (Django) and frontend development (HTML5, CSS3, jQuery).

PHPPHP
HTMLHTML
WordPressWordPress
DrupalDrupal

Web Application Developer

MDA Systems
Aerospace and Defense
Jan 2012 - Jul 2012 · 6m

Building web applications - PHP5 object-oriented programming.

PHPPHP
CakePHPCakePHP
HTMLHTML

Assessments

Engineering excellence

Jacek’s overall performance in a 90-minute live technical assessment ranks in the top 25% of vetted PHP Developers at Proxify.

Education

Poznan University of Technology
Poznan University of Technology
Computer Science/Data ProcessingTechnology2005 - 2010

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