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:
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 mosLeading a 10-person front-end team while balancing hands-on development with strategic leadership. Managing a fully remote team of 30+ developers across different time zones. Ensuring scalable architecture, performance optimization, and seamless backend integration.
Technology Stack
Key Achievements
- 🚀 Optimized application performance for large-scale data processing, improving load times by 40%.
- 📈 Designed scalable front-end architectures, ensuring long-term maintainability and flexibility.
- 🤝 Bridged the gap between front-end & back-end teams, improving collaboration & delivery speed.
- 🛠 Refined CI/CD workflows, reducing deployment time and enhancing DevOps efficiency.
- 👥 Mentored developers & improved code quality, implementing best practices and code reviews.
Core Skills
Senior Front-end Developer
Billennium S.A.
RemoteJan 2022 – Present · 3 yrs 3 mosExperienced Senior Front-end Developer & Tech Lead specializing in building and leading data-driven web applications. Currently spearheading a team of 10 developers in a project based on React.js, AWS, and Cube.js, where I balance hands-on development with strategic technical leadership.
Technology Stack
Key Achievements
- 📊 Led the development of a data visualization platform, improving dashboard performance by 35%.
- ⚡ Optimized large-scale data processing, reducing front-end data load times by 50%.
- 🔍 Designed and implemented scalable front-end architectures for data-intensive applications.
- 🛠 Improved state management strategies, enhancing maintainability and developer efficiency.
- 👥 Mentored developers, improving team-wide code quality and best practices adherence.
- 🤝 Collaborated with backend teams to optimize API efficiency and implement caching strategies.
Core Skills
Front-end Team Lead
Billennium S.A.
Rzeszów & RemoteNov 2020 – Jan 2023 · 2 yrs 3 mosExperienced Front-end Team Lead with a strong background in leading and scaling high-performing remote teams while actively contributing to development projects. Successfully managed a fully distributed team of 30+ professionals, including architects, senior developers, and junior engineers, ensuring seamless collaboration across different time zones.
Technology Stack
Key Achievements
- 🌍 Managed a remote team of 30+ developers across multiple time zones, ensuring seamless collaboration.
- 🛠 Architected complex web applications, optimizing workflows and ensuring maintainability.
- 🤝 Led cross-functional collaboration with backend teams, designers, and product managers.
- 🚀 Implemented performance optimization strategies, reducing load times and enhancing UX.
- 👥 Developed strong skills in cross-cultural communication, remote team management, and agile methodologies.
- 📈 Streamlined development processes, reducing technical debt and improving efficiency.
Core Skills
Front-end Developer
Billennium
Rzeszów, Woj. Podkarpackie, PolandJan 2019 – Nov 2020 · 1 yr 11 mosAs a Front-end Developer, I played a pivotal role in an ongoing gamification project, contributing to the development of dynamic, responsive websites. Initially, we worked with Angular 1.6, but as the project evolved, we transitioned to Vue 2 and later upgraded to Vue 3. My key responsibilities included developing web pages using HTML5, CSS3, JavaScript, and Vue.js, ensuring the sites were both visually appealing and performant.
Technology Stack
Key Achievements
- 💻 Developed dynamic, responsive websites using HTML5, CSS3, JavaScript, and Vue.js.
- ⚡ Transitioned the project from AngularJS 1.6 to Vue 2, then upgraded to Vue 3.
- 🖥 Used Vue’s component-based architecture to build modular, reusable UI components.
- 💡 Integrated gamification features to enhance user interaction and engagement.
- 🎨 Utilized Sass for better organization and modularization of CSS.
- 🔧 Worked on cross-browser compatibility, ensuring smooth operation on all devices.
- 🔄 Contributed to WordPress theme customization and content management.
Core Skills
Junior Front-end Developer
Company Name
Rzeszów, PolandNov 2018 – Jan 2019 · 3 mosAs a Junior Front-end Developer, I took part in a gamification project that allowed me to develop fundamental skills in web development. My main tasks included working with HTML5, CSS3, and JavaScript, focusing on optimizing performance and responsiveness of the websites. I also worked with Angular 1.6, which helped me get familiar with JavaScript frameworks and implement interactive elements on the pages. I was responsible for creating templates and implementing responsive elements to ensure optimal display across devices. Additionally, I worked with WordPress to manage content and adjust templates to the project’s needs.
Technology Stack
Key Achievements
- 💻 Worked on a gamification project to develop dynamic, responsive websites using HTML5, CSS3, and JavaScript.
- ⚡ Worked with AngularJS 1.6 to implement interactive elements and improve user experience.
- 🎨 Contributed to the creation of templates and responsive web design to ensure optimal display across devices.
- 🔧 Managed content and customized WordPress templates to align with the project’s needs.
- 🛠 Collaborated with a team of developers to ensure best practices and effective teamwork.
- 🖥 Participated in testing websites for browser compatibility and interactive element functionality.
- 📚 Gained hands-on experience with Git for version control and collaboration.
Core Skills
Front-end Developer
Up&More
Rzeszów, Woj. Podkarpackie, Poland · On-siteJul 2014 – Sep 2018 · 4 yrs 3 mosIn my role, I was responsible for a wide range of tasks related to website development and customer support. Initially, I worked with Photoshop, preparing PSD files and converting them to HTML5. Then, I implemented CSS3, focusing on aesthetics and code optimization, and used Sass for efficient style management. Additionally, I added small JavaScript functionalities to enhance the interactivity of the pages. A key task was also ensuring that the websites were responsive by applying Responsive Web Design (RWD), which allowed them to display correctly on different devices. I was also responsible for client website administration, mainly on WordPress, WebPRO, and PrestaShop platforms, where I updated content, images, and other multimedia materials. My goal was to maintain the sites’ relevance and attractiveness, in line with client requirements. Furthermore, I managed customer support by fulfilling orders and responding to inquiries, always providing quick and professional responses to maintain positive relationships with clients. As part of my duties, I also prepared monthly reports, analyzing website performance, traffic, and user interactions. Based on this data, I proposed improvements to enhance functionality and usability, tailoring the websites to meet client needs.
Technology Stack
Key Achievements
- 💻 Converted PSD designs to responsive HTML5, ensuring consistent layout across devices.
- 🎨 Implemented CSS3 for aesthetic enhancements and Sass for optimized style management.
- 🔧 Added small JavaScript functionalities to improve interactivity and user experience.
- 🌍 Applied Responsive Web Design (RWD) principles to make websites mobile-friendly.
- 🖥 Managed client websites on WordPress, WebPRO, and PrestaShop platforms.
- 📊 Prepared monthly reports analyzing website performance, traffic, and user interactions.
- 🔄 Proposed improvements to enhance website functionality, usability, and client satisfaction.
- 🛠 Managed customer support by responding to inquiries and fulfilling orders professionally.
Core Skills
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.