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Principal Frontend Engineer

Principal Frontend Engineer specializing in enterprise-scale applications. I help companies modernize legacy systems while keeping their business running.

Worked with global brands across manufacturing, financial services, automotive, and logistics sectors - building e-commerce platforms and solving complex technical challenges.

Experience

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    At Columbus Global, a leading retail consulting firm specializing in B2B e-commerce for manufacturing, built custom e-commerce platforms for major manufacturing companies. Led technical recruitment and interviews, assembled high-performing development teams, and established technology stacks. Set up projects from scratch, mentored junior developers, and provided strategic consulting for enterprise clients.
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    At Bayzat, a Dubai-based InsurTech/HRTech company serving the Middle East market, built the Insurance & HR product from the ground up. Designed and implemented the entire frontend technology stack, recruited and assembled high-performing development teams, and successfully managed distributed teams across different time zones.
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    At POSSIBLE, a digital agency in the WPP network serving UK enterprise clients, worked as an external agency consultant primarily serving clients including a major UK energy company, an international financial services organization, and a global automotive manufacturer. Delivered e-commerce and business solutions for major corporations across various industries. Specialized in front-end implementation for Episerver back-end platform and built custom digital solutions tailored to specific client requirements.
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    At XHTMLized, a global remote development company serving US clients, specialized in converting PSD designs to HTML and implementing them into WordPress. Converted design files to pixel-perfect, responsive HTML/CSS and implemented designs into custom WordPress themes and functionality while maintaining high standards for code quality and design fidelity.
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    At CreativeStyle, a German e-commerce agency specializing in Magento 2 (Adobe Commerce) solutions, worked as a frontend developer for German clients. Implemented PSD designs into responsive HTML/CSS using Magento 2 platform, built and customized e-commerce platforms, and worked directly with German clients to understand market-specific requirements.
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    At CSD, a Warsaw-based agency serving local Polish clients and EU projects, worked as a web developer primarily serving local Polish clients. Built various company websites and participated in projects funded by European Union financial programs. Developed professional websites for local businesses and contributed to projects supported by EU funding initiatives.

Education

Skills

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React/Next.js, Vue/Nuxt.js, Angular/Analog.js, Ember.js, TypeScript, ES6+, CSS-in-JS, Tailwind
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Node.js, Express, NestJS, GraphQL, REST, PostgreSQL, MongoDB, TypeORM, Drizzle ORM
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Docker, K8s, CI/CD, AWS, Azure, Vercel, Git, GitHub, GitLab, Bitbucket
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E2E, Unit, Integration - Vitest, Playwright, Jest, Code Reviews, Performance Optimization, Core Web Vitals, Lighthouse, Bundle Optimization
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Enterprise Architecture, DDD, Micro-frontends, Module Federation, Team Leadership, Mentoring, Hiring, Agile/Scrum, Monorepo
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Design Systems, Component Libraries, Storybook, Accessibility, WCAG, ARIA, Security, OWASP
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Intershop PWA, Magento2 (Adobe Commerce), commercetools, Strapi, Contentful, Shopify, React Native, WordPress

Languages

Polish
Native
English
Professional working proficiency