Building Seamless Digital Journeys

Senior Front-End Developer | Agile Tech Lead | UX Innovator

Bringing Ideas to Life: With over a decade of experience, I specialize in creating intuitive, high-performance web applications that merge cutting-edge technology with user-centric design. My expertise spans modern JavaScript frameworks, scalable front-end architectures, and seamless UI/UX experiences. I have a deep passion for building products that not only function efficiently but also create meaningful digital experiences for users.

As a Senior Front-End Developer and Tech Lead, I’ve had the privilege of leading diverse teams across multiple industries, delivering high-impact solutions that transform businesses. My approach involves bridging the gap between design and development, ensuring that technical excellence aligns perfectly with the end-user’s needs.

Empowering Innovation: My leadership approach combines deep technical expertise with a strong focus on collaboration and mentorship. I empower teams to build scalable, future-proof applications that exceed expectations, leveraging Agile methodologies and performance-driven development.

From crafting optimized front-end architectures to enhancing user interactions through micro-interactions and animation frameworks, I am committed to delivering excellence. I am passionate about integrating emerging technologies such as AI-powered UI enhancements, WebAssembly, and progressive web applications to push the boundaries of modern web development.

Core Competencies:

✓Advanced Front-End Architecture & Development
✓Agile Team Leadership & Project Management
✓User Experience (UX) Design Implementation
✓Performance Optimization & Speed Enhancements
✓Cross-Platform & Cross-Browser Compatibility
✓Emerging Technology Integration

Professional Experience

Over the years, I've contributed to a diverse range of projects, from enterprise-level web applications to innovative start-up platforms. Below is a snapshot of my journey.

Technical Lead

Billennium S.A.

RemoteNov 2022 – Present · 2 yrs 5 months

Leading a 10-person front-end team and 30+ remote developers, balancing hands-on coding with strategic oversight to deliver scalable, high-performance solutions.

Technology Stack
Next.jsReact.jsTypeScriptNode.jsAWSCube.jsExpress.js
Key Achievements
  • 🚀 Improved app performance by 40% via optimized data processing.
  • 📈 Designed scalable front-end architectures for maintainability.
  • 🛠 Streamlined CI/CD pipelines, reducing deployment time.
  • 👥 Mentored team, enhancing code quality and best practices.
Core Skills
CI/CD
Team Leadership
Architecture Design
Performance Optimization

Senior Front-end Developer

Billennium S.A.

RemoteJan 2022 – Present · 3 yrs 3 months

Spearheading a 10-person team to build data-driven web apps, combining hands-on development with technical leadership.

Technology Stack
React.jsNext.jsTypeScriptAWSCube.jsNode.js
Key Achievements
  • 📊 Built a data visualization platform, boosting dashboard performance by 35%.
  • ⚡ Reduced front-end data load times by 50% with optimized processing.
  • 🔍 Designed scalable architectures for data-intensive apps.
  • 👥 Mentored developers, improving team code quality.
Core Skills
Team Leadership
Front-end Architecture
Performance Optimization

Front-end Team Lead

Billennium S.A.

Rzeszów & RemoteNov 2020 – Jan 2023 · 2 yrs 3 months

Managed a 30+ distributed team, driving collaboration and delivering performant web applications.

Technology Stack
React.jsVue.jsTypeScriptJavaScript
Key Achievements
  • 🌍 Led remote team across time zones for seamless collaboration.
  • 🚀 Optimized app performance, enhancing user experience.
  • 🛠 Architected maintainable web applications.
Core Skills
Team Leadership
Remote Management
Agile Methodologies

Front-end Developer

Billennium

Rzeszów, PolandJan 2019 – Nov 2020 · 1 yr 11 months

Developed dynamic, responsive websites for a gamification project, transitioning from AngularJS to Vue.js.

Technology Stack
Vue.jsJavaScriptHTML5CSS3Sass
Key Achievements
  • 💻 Built responsive websites with Vue.js and JavaScript.
  • ⚡ Upgraded project from AngularJS to Vue 2 and Vue 3.
  • 🎨 Enhanced UI with modular Sass styles.
Core Skills
Vue.js
UI/UX Design
Gamification

Junior Front-end Developer

Billennium

Rzeszów, PolandNov 2018 – Jan 2019 · 3 months

Contributed to a gamification project, building responsive websites and learning JavaScript frameworks.

Technology Stack
HTML5CSS3JavaScriptAngularJSWordPress
Key Achievements
  • 💻 Developed responsive websites with HTML5 and JavaScript.
  • 🎨 Created templates for cross-device compatibility.
  • 🔧 Customized WordPress themes for project needs.
Core Skills
WordPress
Web Development
Responsive Design

Front-end Developer

Up&More

Rzeszów, PolandJul 2014 – Sep 2018 · 4 yrs 3 months

Developed responsive websites and managed client content on WordPress and PrestaShop, enhancing usability and performance.

Technology Stack
HTML5CSS3JavaScriptWordPressPrestaShopSass
Key Achievements
  • 💻 Converted PSDs to responsive HTML5 websites.
  • 🌍 Applied RWD for mobile-friendly designs.
  • 🖥 Managed WordPress and PrestaShop sites for clients.
Core Skills
Web Development
Responsive Design
Content Management

Technical Expertise: Crafting Seamless Digital Solutions

Core Web Technologies

With deep expertise in JavaScript, TypeScript, HTML, CSS, and Sass, I create dynamic and visually appealing web applications.

Frameworks & Libraries

Proficient in React.js, Next.js, and React Native, I build efficient, scalable solutions with server-side rendering, static generation, and cross-platform mobile apps.

Essential Development Tools

Leveraging Git, Webpack, and Babel, I streamline workflows and maintain clean, robust codebases for projects of any scale.

Quality Through Testing

Dedicated to delivering reliable applications, I employ Jest, React Testing Library, Cypress, and Selenium for comprehensive testing.

Performance Optimization

Using Lighthouse and PageSpeed Insights, I enhance application speed and efficiency with techniques like code splitting and lazy loading.

DevOps & Automation

Experienced with Docker, Jenkins, and GitHub Actions, I implement CI/CD pipelines to automate and optimize deployment processes.