艁ukasz Krawczyk

Senior Backend Developer

Professional Summary

Accomplished Programmer with extensive senior-level PHP programming expertise. Proven track record of leading development teams, architecting scalable solutions, and delivering high-quality software products. Combines deep technical knowledge with strategic leadership to drive innovation and excellence in software development.

Professional Experience

Senior PHP Developer
Sep 2022 - Dec 2024
Betsson Group 路 Full-time 路 Ta' Xbiex, Malta 路 On-site
  • PHP and Server Side Programming
  • Developed scalable applications and maintained high-performance backend systems
  • Collaborated with cross-functional teams to deliver enterprise-level projects
Head Of Development
Apr 2023 - Jan 2024
Brybery 路 Self-employed 路 Malta 路 On-site
  • Founded and led Brybery, a pioneering loyalty app merging humor with customer engagement
  • Oversaw creation of innovative loyalty programs to delight customers and boost business growth
  • Managed full lifecycle from concept to execution, infusing interactions with humor and engagement
Senior Backend Developer
Feb 2020 - Aug 2020
Rabbit Entertainment 路 Full-time 路 Malta
  • Developed and maintained backend systems for iGaming platforms
  • Optimized application performance and database queries
  • Collaborated with frontend developers and designers to ensure seamless integration
Head of Backend Development
2017 - 2020
GameLounge, Malta
  • Lead development team of 6+ engineers, establishing best practices and agile methodologies
  • Define technical strategy and architecture for enterprise-level PHP applications
  • Oversee full software development lifecycle from requirements to deployment
  • Implement CI/CD pipelines and automated testing frameworks, reducing deployment time by 40%
  • Manage technical debt reduction initiatives while delivering new features
  • Collaborate with stakeholders to align technical solutions with business objectives
Senior PHP Developer / Tech Lead
2016 - 2020
Gaming Innovation Group, Malta
  • Architected and developed scalable PHP applications serving millions of users
  • Led technical team of 5-8 developers, conducting code reviews and mentoring
  • Optimized database performance and implemented caching strategies, improving response times by 60%
  • Migrated legacy systems to modern PHP frameworks (Symfony/Laravel)
  • Integrated third-party APIs and payment gateways
PHP Developer
2011 - 2015
Freshmind sp. z o.o., Poland
  • Developed and maintained e-commerce platforms and web applications using PHP/MySQL
  • Implemented RESTful APIs and integrated frontend frameworks
  • Collaborated with cross-functional teams in agile environment
  • Participated in requirement analysis and technical documentation

Education

Bachelor's Degree in Computer Science
2008 - 2011
Politechnika 艢l膮ska, Poland

Technical Stack

  • Languages: PHP, JavaScript, SQL, HTML/CSS
  • Frameworks: Laravel, Symfony, React, Vue.js
  • Databases: MySQL, PostgreSQL, Redis, MongoDB
  • DevOps: Docker, Kubernetes, Jenkins, GitLab CI/CD
  • Tools: Git, Composer, PHPUnit, Jest, Jira
  • Architecture: Microservices, RESTful APIs, SOLID principles, Design Patterns

Certifications

  • Zend Certified PHP Engineer
  • AWS Certified Solutions Architect
  • Certified Scrum Master (CSM)