Stanislav

Lead Flutter Developer – "ZifflyMusic" (Music Streaming App)

Fiverr • Freelance

Apr 2026 - May 2026 • 1 mo

A music tech startup founder ordered my Fiverr gig to build their music streaming mobile app. They had Figma designs and a content library but needed a fully functional Flutter app ready for iOS and Android. My mission: deliver a Spotify-style streaming experience with audio playback, playlists, and backend connectivity. What I Built: I developed a complete music streaming app featuring user authentication, artist and album browsing, category-based music discovery, search functionality, customizable playlists, favorite tracks, audio playback controls, now-playing interface, and user profile management. My Process: I started by reviewing their Figma designs, product requirements, and API documentation. I planned the app architecture and built reusable UI components for music cards, player controls, and navigation flows using Flutter and Dart. I implemented REST API integration for fetching music metadata, album art, and streaming URLs. I configured Firebase Authentication for secure login and Cloud Firestore for user data including playlists, favorites, and listening history. I built responsive layouts optimized for both Android and iOS devices with consistent media-focused UI. I added audio playback functionality with play/pause, skip, seek, volume control, and background playback support. I rigorously tested all app flows on real devices, fixed playback bugs, resolved API issues, refined UI responsiveness, and applied client revisions promptly. Delivered Value: A production-ready music streaming app delivered in 4 weeks—flawless audio playback, intuitive navigation, and seamless cross-platform performance. Tech Stack: Flutter, Dart, Firebase, REST APIs, Figma, Android, iOS, Git.

Lead Bubble.io Developer – "RentalVanuis" (Property Management Platform)

Freelancer.com • Freelance

Feb 2024 - Jul 2024 • 5 mos

A PropTech startup founder hired me through Freelancer com to build their property management web application. They had a product concept and basic wireframes but no technical team. My mission: deliver a fully functional Bubble io MVP with database architecture, API integrations, and payment processing. What I Built: I developed a complete Bubble io web application featuring user registration and authentication, role-based dashboards for landlords and tenants, property listing management, maintenance request tracking, automated rent collection via Stripe, document upload functionality, and real-time notification system. My Process: I started by analyzing their product requirements and user journeys. I designed a scalable Bubble database with proper data types, relationships, and privacy rules. I built responsive pages matching their wireframes across desktop, tablet, and mobile. I configured complex workflows for property booking, payment processing, and maintenance request routing. I integrated Stripe for automated rent collection and connected external APIs for property verification and document signing. I built interactive dashboards with dynamic data visualization, set up role-based access controls, implemented email automation for payment reminders, and created an admin panel for platform management. I rigorously tested all workflows, debugged application logic, fixed responsive issues, and optimized performance for smooth user experiences. Delivered Value: A production-ready property management MVP supporting 150+ users with automated payment processing and zero critical bugs at launch. Tech Stack: Bubble io, REST APIs, webhooks, Stripe, JavaScript, database workflows, Figma.

Webflow Framer Developer– "DaunchPulse" (SaaS Product Landing Page)

LinkedIn • Freelance

May 2023 - Sep 2023 • 4 mos

A tech startup founder discovered my Webflow portfolio on LinkedIn and reached out directly. They were launching their SaaS product in 10 days and needed a high-converting landing page built in Webflow. They had Figma designs but zero Webflow experience. My mission: deliver a pixel-perfect, fully responsive landing page optimized for conversions and performance. Their Figma design featured complex scroll-triggered animations, gradient sections, and custom typography. The page had to be live within 10 days to align with their product launch. What I Built: I developed a complete Webflow landing page including a hero section with animated headline, feature grid with hover effects, pricing table with toggle, testimonial carousel using CMS, email capture form integrated with Mailchimp, sticky CTA bar, and reusable components for design consistency. My Process: I started by analyzing their Figma files, sitemap, and brand guidelines. I planned the page structure and created a component library for buttons, forms, cards, and navigation. I meticulously converted every Figma element into Webflow, implementing responsive breakpoints for desktop, tablet, and mobile. I added scroll-triggered fade-ins, parallax effects, hover animations, and smooth transitions using Webflow Interactions. I configured SEO settings including meta tags, Open Graph data, and alt text. I optimized assets with WebP compression and lazy-loading to achieve 95+ PageSpeed scores. I integrated Google Analytics 4 and connected Mailchimp for lead capture. I conducted cross-browser testing across Chrome, Safari, Firefox, and Edge. I fixed layout inconsistencies, refined responsive behavior, applied client feedback through three revision rounds, and prepared the page for launch. Delivered Value: A pixel-perfect landing page delivered in 9 days—95+ PageSpeed scores and 200+ email signups within the first week of launch.