LIAM

No-Code / Backend Integration Developer

Appflow • Freiberufler

Dec 2024 - Present • 1 yr 5 mos

Worked on building and fixing backend logic and integrations for web applications, especially booking systems and automation-based platforms. Focused on connecting frontend interfaces with backend services, ensuring data is processed correctly and actions such as bookings, payments, and notifications work without failure. Handled integration issues where systems failed to communicate properly, including API errors, broken workflows, and incorrect data handling. Fixed problems related to booking confirmations, user data storage, and system responses to user actions. Also worked on improving automation processes to reduce manual work for business owners by setting up reliable workflows. Supported projects built with modern no-code and low-code tools, troubleshooting errors that prevented apps from going live or functioning properly. Resolved deployment issues, fixed broken logic, and ensured systems remained stable after updates. Also assisted in improving backend structure to handle higher usage without breaking. Helped clients turn incomplete or non-working projects into functional systems that could handle real users. Focused on reliability, making sure every feature works as expected before delivery. Also provided ongoing fixes and adjustments after launch to maintain performance and prevent future issues.

Full Stack Web Developer (Booking Systems)

Self Level • Freiberufler

Jan 2023 - Present • 3 yrs 4 mos

Worked on building and fixing booking-based web applications with a strong focus on taxi booking and chauffeur platforms. Developed complete booking flows from user input to confirmation, ensuring the system handles real-time requests without delays or errors. Improved existing systems where users faced issues such as failed bookings, broken forms, and slow page loads. Handled payment integration fixes by resolving transaction failures, incorrect pricing calculations, and checkout errors that affected conversions. Focused on improving user experience by restructuring booking steps, simplifying navigation, and ensuring mobile responsiveness across all devices. Connected frontend interfaces with backend logic, fixing API-related issues and ensuring accurate data flow between systems. Also worked on admin dashboards for managing bookings, pricing, and customer data, making it easier for business owners to track operations. In multiple projects, reduced booking errors and improved completion rates by identifying weak points in the system and correcting them. Delivered stable and functional platforms that allowed clients to accept bookings and payments without interruptions. Also handled debugging tasks, deployment fixes, and post-launch adjustments to ensure systems remained reliable after going live.

Web App Developer (UI Fixes & Performance)

Freelance Web Designer • Selbstständig

May 2022 - Present • 4 yrs

Specialized in fixing and improving web applications that were already built but not functioning correctly. Worked on multiple projects involving UI issues, broken layouts, and poor responsiveness that affected user interaction and overall usability. Took Figma designs and corrected inconsistencies between design and live websites, ensuring accurate implementation across different screen sizes. Handled performance-related problems such as slow loading pages, laggy interfaces, and inefficient frontend structure. Improved page speed and responsiveness by restructuring layouts and optimizing components for better performance. Also worked on fixing broken user flows where users could not complete actions such as form submissions, bookings, or navigation between pages. Collaborated with clients to identify the root cause of issues rather than applying temporary fixes. This included debugging frontend behavior, resolving integration conflicts, and ensuring stable functionality after updates. Worked on booking-related interfaces and landing pages, improving clarity and usability to increase user engagement. Delivered consistent improvements in usability, making applications easier to navigate and reducing user drop-offs. Ensured all fixes were tested properly before deployment to avoid repeated issues and improve overall system reliability.