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Hi, I’m Michal Slepko, a senior web developer with over 14 years of experience building scalable PHP and JavaScript applications. I specialize in WordPress, Laravel, React, and server management, delivering robust solutions for ecommerce, education, and enterprise clients. I enjoy turning complex requirements into reliable, maintainable software and collaborating with cross‑functional teams to deliver impactful features. Most of my work has focused on modern web stacks, cloud infrastructure, and delivering end-to-end solutions for diverse sectors. I’ve led projects, mentored junior engineers, and I’m comfortable working remotely with distributed teams to achieve high-quality results.…Hi, I’m Michal Slepko, a senior web developer with over 14 years of experience building scalable PHP and JavaScript applications. I specialize in WordPress, Laravel, React, and server management, delivering robust solutions for ecommerce, education, and enterprise clients. I enjoy turning complex requirements into reliable, maintainable software and collaborating with cross‑functional teams to deliver impactful features. Most of my work has focused on modern web stacks, cloud infrastructure, and delivering end-to-end solutions for diverse sectors. I’ve led projects, mentored junior engineers, and I’m comfortable working remotely with distributed teams to achieve high-quality results.

MICHAL SLEPKO

PRO

Web Developer, Full Stack Developer, Front-End Developer, +2

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Hi, I’m Michal Slepko, a senior web developer with over 14 years of experience building scalable PHP and JavaScript applications. I specialize in WordPress, Laravel, React, and server management, delivering robust solutions for ecommerce, education, and enterprise clients. I enjoy turning complex requirements into reliable, maintainable software and collaborating with cross‑functional teams to deliver impactful features. Most of my work has focused on modern web stacks, cloud infrastructure, and delivering end-to-end solutions for diverse sectors. I’ve led projects, mentored junior engineers, and I’m comfortable working remotely with distributed teams to achieve high-quality results.…Hi, I’m Michal Slepko, a senior web developer with over 14 years of experience building scalable PHP and JavaScript applications. I specialize in WordPress, Laravel, React, and server management, delivering robust solutions for ecommerce, education, and enterprise clients. I enjoy turning complex requirements into reliable, maintainable software and collaborating with cross‑functional teams to deliver impactful features. Most of my work has focused on modern web stacks, cloud infrastructure, and delivering end-to-end solutions for diverse sectors. I’ve led projects, mentored junior engineers, and I’m comfortable working remotely with distributed teams to achieve high-quality results.

Next availability:

December 8, 2025

United Kingdom

Hi, I’m Michal Slepko, a senior web developer with over 14 years of experience building scalable PHP and JavaScript applications. I specialize in WordPress, Laravel, React, and server management, delivering robust solutions for ecommerce, education, and enterprise clients. I enjoy turning complex requirements into reliable, maintainable software and collaborating with cross‑functional teams to deliver impactful features.

Most of my work has focused on modern web stacks, cloud infrastructure, and delivering end-to-end solutions for diverse sectors. I’ve led projects, mentored junior engineers, and I’m comfortable working remotely with distributed teams to achieve high-quality results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Polish

Fluent

Work Experience

Senior PHP Developer at ProDog Raw

August 1, 2023 - Present

Developed a bespoke subscription system for WooCommerce store, enhancing system performance and delivering noticeable results in user engagement. 2x more subscriptions created compared to their old system. Leading custom WordPress development and managing server infrastructure. Collaborated cross-functionally to gather requirements and streamline project delivery.

Software Developer (Contract) at University of Greenwich

July 1, 2024 - October 9, 2025

Developed and deployed internal web applications. Migrated legacy applications and databases to new server infrastructure. Collaborated with stakeholders to ensure smooth transitions and system upgrades. Stack: PHP, jQuery, Linux, MySQL.

Technical Lead (Contract) at The Estée Lauder Companies Inc.

December 1, 2023 - October 9, 2025

Led the development and long-term maintenance of a mission-critical Perl-based system handling ecommerce operations across multiple brands. Managed diverse technical projects through process change, improvements, and rollouts. Maintained and enhanced a large Perl-based system managing databases, customers, orders, and stock for multiple e-commerce brands. Contributed to React-based web applications developed as part of modernization initiatives. Integrated third-party software applications to optimize business operations. Collaborated effectively with stakeholders, partners, and project teams to ensure timely delivery aligned with technical roadmaps. Supported the development of junior staff through coaching, mentoring, and capability building. Managed a small team of remote engineers. Worked in an Agile environment using Kanban boards (e.g., Jira) to manage sprint planning and delivery. Integrated with 3rd party APIs. Stack: Perl, PHP, Linux, JavaScript, SASS, React, GIT, Jira.

Technical Lead (Contract / Part-Time) at Chaptr

December 1, 2015 - Present

Maintained and enhanced WordPress sites, including core updates and custom feature development. Built custom WordPress themes and plugins. Handled server setup and ongoing Linux server administration. Oversaw BAU (business-as-usual) tasks and incident resolution. Stack: PHP, WordPress, MySQL, Git, jQuery, Figma.

Senior Web Application Developer at Rootscope Limited

December 1, 2015 - Present

Operating through my limited company, delivering web development and server administration services to agencies and direct clients. Maintain Laravel-based applications (Vue, Livewire, Alpine), delivering new features and ongoing support. Manage multiple WordPress and WooCommerce websites. Work with React-based frameworks (GatsbyJS, Next.js) and cloud platforms including AWS (S3, EC2, Lightsail) and GCP (Cloud Storage, Compute Engine). Regularly communicate with clients to gather requirements, deliver solutions, and create documentation.

PHP Web Developer (Contract) at The Car Finance Company (2007) Limited

September 1, 2016 - October 9, 2025

Developed and maintained internal applications to streamline finance document management. Contributed to API development and back-end improvements. Stack: PHP, Linux, MySQL.

Developer at Gallagher Communication

January 1, 2016 - October 9, 2025

Built and maintained a PHP and AngularJS-based intranet portal used by multiple clients. Delivered scalable, well-tested code across backend and frontend. Deployed and managed scalable infrastructure on Google Cloud Platform. Stack: PHP, AngularJS, Grunt/Gulp, Vagrant, LAMP, GCP, Git, Jira.

CTO / Lead Developer (Contract) at Tions Technology

February 1, 2014 - October 9, 2025

Oversaw all IT initiatives including system architecture, development, and deployment. Resolved critical security issues and implemented database design, new features, and system optimizations. Stack: PHP, JavaScript, Linux.

SENIOR PHP DEVELOPER at ProDog Raw

August 1, 2023 - Present

Developed a bespoke subscription system for a WooCommerce store, improving system performance and engagement; led custom WordPress development and server infrastructure; collaborated cross-functionally to gather requirements and streamline project delivery.

SOFTWARE DEVELOPER (CONTRACT) at University of Greenwich

July 1, 2024 - October 9, 2025

Developed and deployed internal web applications; migrated legacy applications and databases to new server infrastructure; collaborated with stakeholders to ensure smooth transitions and system upgrades.

TECHNICAL LEAD (CONTRACT) at The Estée Lauder Companies Inc.

December 1, 2023 - October 9, 2025

Led development and long-term maintenance of a mission-critical Perl-based system handling ecommerce operations across multiple brands; managed diverse projects through process improvements and rollouts; contributed to React-based modernization; integrated third-party software; coached junior staff; managed a small team of remote engineers; worked in an Agile/Kanban environment; integrated with 3rd party APIs.

TECHNICAL LEAD (CONTRACT / PART-TIME) at Chaptr

December 1, 2015 - Present

Maintained and enhanced WordPress sites, including core updates and custom feature development; built custom WordPress themes and plugins; handled server setup and ongoing Linux server administration; oversaw BAU tasks and incident resolution.

SENIOR WEB APPLICATION DEVELOPER at Rootscope Limited

December 1, 2015 - Present

Maintained Laravel-based applications (Vue, Livewire, Alpine) delivering new features and ongoing support; managed multiple WordPress and WooCommerce sites; worked with React-based frameworks (Gatsby/Next); deployed on AWS and GCP; maintained client communications and documentation.

PHP WEB DEVELOPER (CONTRACT) at The Car Finance Company (2007) Limited

September 1, 2016 - October 9, 2025

Developed and maintained internal applications to streamline finance document management; contributed to API development and back-end improvements.

DEVELOPER at Gallagher Communication

January 1, 2016 - October 9, 2025

Built and maintained a PHP and AngularJS-based intranet portal used by multiple clients; delivered scalable, well-tested code across backend and frontend; deployed and managed scalable infrastructure on Google Cloud Platform.

CTO / LEAD DEVELOPER (CONTRACT) at Tions Technology

February 1, 2014 - October 9, 2025

Oversaw all IT initiatives including system architecture, development, and deployment; resolved critical security issues and implemented database design, new features, and system optimizations.

Senior PHP Developer at ProDog Raw

August 1, 2023 - Present

Developed a bespoke subscription system for a WooCommerce store, boosting performance and user engagement; achieved roughly 2x increase in subscriptions. Led custom WordPress development and managed server infrastructure; collaborated cross-functionally to streamline project delivery.

Software Developer (CONTRACT) at University of Greenwich

July 1, 2024 - October 9, 2025

Technical Lead (CONTRACT) at The Estée Lauder Companies Inc.

December 1, 2023 - October 9, 2025

Led the development and long-term maintenance of a mission-critical Perl-based ecommerce system supporting multiple brands; managed a small remote team; maintained and enhanced a large Perl-based system handling databases, customers, orders, and stock; contributed to React-based modernization and integrated third-party software; mentored junior staff; worked in an Agile Kanban environment.

Technical Lead (Contract / Part-Time) at Chaptr

December 1, 2015 - Present

Senior Web Application Developer at Rootscope Limited

December 1, 2015 - Present

Delivered Laravel-based applications (Vue, Livewire, Alpine), managed multiple WordPress and WooCommerce sites; worked with React-based frameworks (Gatsby, Next.js) and cloud platforms (AWS, GCP); maintained regular client communication and documentation.

PHP Web Developer (CONTRACT) at The Car Finance Company (2007) Limited

September 1, 2016 - October 9, 2025

Developed internal applications to streamline finance document management; contributed to API development and backend improvements.

Developer at Gallagher Communication

January 31, 2016 - October 9, 2025

CTO / Lead Developer (CONTRACT) at Tions Technology

February 1, 2014 - October 9, 2025

Oversaw IT initiatives including system architecture, development, and deployment; resolved critical security issues and implemented database design, new features, and system optimizations.