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I'm seeking an ex-frontend engineer with experience in building creative tools or performance-heavy UI systems. The focus of this project is to enhance user experience on a future video editing app with a specific emphasis on responsive design. Key Requirements: - Optimize the UI specifically for mobile devices - Ensure responsive design for a seamless user experience across all platforms - Collaborate closely with me to refine intuitive navigation and interactive elements Ideal skills and experience: - Proven track record in frontend development - Expertise in responsive design and mobile optimization - Strong understanding of user experience principles - Ability to create performance-heavy UI systems Your contribution will be pivotal in delivering a high-quality, user-centric product. Extra info on plans: 1. Core Mobile Video Editor Features (Frontend Must Support) Your frontend dev should be able to implement or integrate: Timeline System (this is the heart) Multi-track timeline (video, audio, text, effects) Drag-to-trim clips (trim handles like CapCut) Snap-to-grid editing (frame-level precision) Zoom in/out timeline smoothly (pinch gestures) Layer stacking (like Photoshop but for video) Playback Engine UI (real-time preview) Frame-accurate scrubbing 30–60fps smooth preview (no lag when dragging timeline) Instant play/pause response (<100ms ideally) Variable speed preview (0.25x–4x) Touch-first editing Long press → select clip Drag gestures for: trimming moving clips adjusting speed curves Two-finger pinch zoom timeline Edge snapping + haptic feedback Gesture conflict handling Prevent accidental scrubs during scrolling Separate “scroll mode” vs “edit mode” Frontend dev must optimize for: Rendering performance Use GPU-accelerated rendering (WebGL / Metal / native canvas) Avoid re-rendering full timeline on small changes Virtualize timeline (only render visible clips) Memory management Lazy-load video thumbnails Stream preview frames instead of loading full clips Clear unused buffers aggressively Smooth UI constraints Maintain 60fps UI (no frame drops while scrubbing) Debounce heavy state updates Use requestAnimationFrame for animations They should integrate or build: Low-res proxy video generation for editing High-res export pipeline (backend or native module) Frame caching system for scrubbing Background rendering pipeline (so UI doesn’t freeze) Core tools: Trim / split / merge clips Speed ramp editor (keyframe curves) Filters & LUTs Color correction sliders Chroma key (green screen) Masking tools (basic shapes initially) Text overlays + animations Audio waveform editor AI auto-cut (remove silences) Auto captions + subtitles Scene detection (auto split clips) Background removal (video segmentation) Smart templates (auto-generated edits) Frontend role: UI for AI suggestions Preview + accept/reject flows Non-destructive edits (always reversible) Your dev should understand: State management for timeline (Redux/Zustand/MobX or custom) Media pipeline separation (UI vs processing engine) Component isolation (timeline, preview, tools panel) Plugin-based architecture (for effects/tools) Cross-platform mobile framework: React Native (with native modules) Flutter or fully native (Swift/Kotlin) for best performance BEFORE YOU BID!!!! IM A HIGHSCHOOL STUDENT. I'M NOT SURE IF I CAN PAY HIGHLY, I APOLOGISE IF THIS IS UNPROFESSIONAL, I AM WORKING ON IT, I PROMISE.
Project ID: 40499829
78 proposals
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78 freelancers are bidding on average $9 SGD/hour for this job

Hello, I have carefully reviewed your requirements and understand that you are building a mobile-first video editing application that requires a highly responsive, performance-optimized interface with advanced timeline editing, media preview, AI-assisted workflows, and a seamless user experience. With over 10 years of experience in React, React Native, frontend architecture, real-time applications, and performance-intensive UI development, I can help design and build a scalable editing experience optimized for mobile devices while maintaining smooth interactions and responsiveness. My experience includes: • Complex Timeline & Media Interfaces • React Native & Cross-Platform Development • Performance Optimization & Virtualized Rendering • Advanced Gesture Handling • State Management (Redux, Zustand) • Responsive UI/UX Design • Real-Time Preview & Interactive Editing Tools • AI Feature Integration Workflows For a project of this nature, I would recommend React Native with native modules where required for maximum code reuse and performance, while keeping the architecture modular for future expansion. I appreciate your transparency regarding budget. As someone passionate about building innovative products, I will provide 2 years of free ongoing support, complete source code ownership, technical documentation, and assistance from planning through deployment. Thank you.
$10 SGD in 40 days
8.4
8.4

I'm a frontend developer with experience in performance-heavy UI systems and mobile optimization. For your video editing app MVP, I recommend starting with Flutter for cross-platform support and GPU-accelerated rendering. I can build the core timeline UI with multi-track support, drag-to-trim handles, pinch-zoom gestures, and frame-accurate scrubbing at 60fps. I'll implement virtualized rendering (only visible clips rendered), lazy-loaded thumbnails, debounced state updates, and requestAnimationFrame animations for smooth UX. I understand the scope is large and can help you prioritize an MVP focused on core timeline and basic trim/split workflows first, then iterate. Happy to work within your budget constraints. Regards, Harsh Thoriya
$20 SGD in 40 days
8.0
8.0

Hi there, I am a senior frontend developer with experience building complex, performance-focused web and mobile interfaces. As this is a video editing application, the most critical part will be the timeline system, playback responsiveness, gesture handling, and maintaining smooth performance while users are trimming, scrubbing, zooming, and managing multiple media layers. So I will work on optimizing timeline rendering, state management, mobile responsiveness, touch-first editing workflows, and AI interaction flows so the experience remains intuitive even as more advanced features are added. After that, I will review performance bottlenecks, improve rendering efficiency, and ensure the editor feels fast and responsive across different devices while keeping the codebase maintainable for future growth. I would request to connect once so we can discuss the current stage of the product, your vision for the editor, and how I can contribute to building a smooth, professional editing experience. Thanks, Rahul A.
$6 SGD in 40 days
7.8
7.8

We have experience building Flutter and React Native applications with advanced state management, real-time interactions, media-heavy interfaces, custom animations, and performance optimization. We understand the challenges of timeline virtualization, rendering optimization, gesture conflict resolution, component isolation, and maintaining smooth 60fps interactions on mobile devices. We can help design a scalable frontend architecture that separates the editing engine from the UI layer while keeping the experience intuitive and responsive. A few questions: ============== Are you planning to build the actual video processing/rendering engine in-house, or will it be powered by existing frameworks/libraries? Do you prefer Flutter, React Native, or are you open to recommendations based on long-term performance requirements? Which features are required for the MVP version versus future releases (timeline, captions, AI tools, effects, etc.)? Do you already have UI wireframes/prototypes for the editor, or would frontend UX design also be part of the project scope? Best Regards, Srashtasoft Team
$7 SGD in 40 days
7.1
7.1

Hello There!!! ★★★★ ( Building a performance-first mobile video editing UI with smooth timeline & gesture experience ) ★★★★ Project understanding: I understand you are looking for a frontend developer to build a user-centric mobile video editing app with strong focus on responsive design, smooth UX, and performance-heavy UI systems. The key challenge is creating a CapCut-like timeline experience with real-time preview, gesture controls, and optimized rendering for mobile devices. ⚜ Mobile-first responsive UI development for video editing app ⚜ Multi-track timeline system (trim, split, zoom, snap) ⚜ Gesture-based interactions (pinch, drag, long press controls) ⚜ Performance optimization for 60fps playback and scrubbing ⚜ State management for complex timeline workflows (Redux/Zustand) ⚜ Lazy loading + caching for media thumbnails and preview frames ⚜ Modular architecture for scalable editing tools & plugins I have experience building responsive and performance-heavy frontend systems with smooth animations and real-time interactions. My focus is clean architecture, GPU-optimized rendering where needed, and reducing re-renders to keep the editing experience fluid even on lower-end devices. I understand you are a student and budget is sensitive, so I’m open to a simple MVP-first approach where we build core timeline + preview first and expand later step by step. Let’s connect and plan a lightweight version you can realistically build and grow. Warm Regards, Farhin B.
$7 SGD in 40 days
6.6
6.6

Hi Client, We’ve developed several responsive web apps and landing pages optimized for mobile devices, including a product that achieved 90%+ scores on Google Lighthouse for mobile performance. We understand that a fast, responsive UI is crucial for user retention, especially in a product like yours where users are actively engaged. As a full-stack developer with 15 years of experience, I can also handle backend tasks if needed, ensuring seamless integration between frontend and backend. I’m equally comfortable with Vue.js and React.js, so you can choose the framework that best fits your project. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m looking forward to hearing more about this exciting project. Best, Adil
$15 SGD in 40 days
6.3
6.3

Hi I will be able to help you in your video editing app. How much you are thinking to invest for this project? Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$10 SGD in 40 days
6.5
6.5

Hi, This is Jorge from IT GLOBAL SOLUTION LLC, based in the U.S. I can help you shape and improve the frontend experience for your mobile video editing app, especially around responsive design, touch-first navigation, timeline UX, and performance-heavy UI behavior. I understand you are building something ambitious, so I would approach this in a practical phased way: first creating a strong mobile editor foundation, then expanding into advanced tools as the product grows. For the first phase, I would focus on the core user experience: clean mobile layout, intuitive navigation, timeline structure, preview area, tool panels, touch gestures, clip selection, trim/move interactions, zoom behavior, and responsive design across screen sizes. I can also help define the frontend architecture so the timeline, preview, state management, and media-processing layer stay separated and easier to scale. Performance would be a major focus. For a video editor UI, I would avoid unnecessary re-renders, use efficient state handling, virtualize timeline elements, lazy-load thumbnails, debounce heavy updates, and design interactions around smooth 60fps behavior where possible. Let’s connect and go over the details. Best, Jorge
$70 SGD in 40 days
5.9
5.9

✋ Hi There!!! ✋ The Goal of the project:- BUILD A HIGH-PERFORMANCE MOBILE VIDEO EDITING APP WITH RESPONSIVE UI, SMOOTH TIMELINE INTERACTIONS, AND A SCALABLE ARCHITECTURE FOR ADVANCED EDITING FEATURES. I carefully reviewed your detailed project requirements and understand the importance of creating a mobile-first video editing experience with multi-track timelines, frame-accurate scrubbing, touch gestures, AI-assisted workflows, responsive navigation, and performance optimization for a seamless user experience. With 9+ years experience as a full stack developer, I can help design and develop efficient frontend systems that balance performance, usability, and future scalability while working within your project goals. 1. Develop responsive mobile UI with optimized timeline editing, gestures, and real-time preview controls. 2. Implement efficient state management, rendering optimization, and component isolation for smooth performance. 3. Build scalable interfaces for editing tools, AI suggestions, captions, effects, and workflow management. I will provide UI design, database management support, testing, performance optimization, technical documentation, architecture planning, and full source code delivery at project completion. I have successfully completed similar media-rich applications, interactive editing tools, and React Native and Flutter projects. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$6 SGD in 40 days
5.0
5.0

Hello, I can help improve the mobile UX for your video editing app with React Native/Flutter, JavaScript, responsive design, performance-heavy UI, and touch-first frontend development. I understand you’re a student, so I’d suggest starting lean with the highest-impact screens first instead of trying to build every CapCut-level feature at once. I’ll focus on the mobile editor experience: timeline layout, preview area, tool panels, gestures, clip selection, trimming UI, smooth navigation, and responsive behavior across devices. I can also help structure the frontend so heavier features like AI captions, scene detection, filters, and export pipelines can be added later without rebuilding everything. My approach would be milestone-based: prototype the timeline and gestures, optimize rendering, test on real devices, then expand tools step by step. I am ready to start. Best regards, Smit
$10 SGD in 40 days
4.5
4.5

Lets chat, a free consultation and no obligation. I understand you need a clean, professional, and user-friendly solution for your "User-Centric Mobile Video Editing App" project. My skills in PHP, Java, JavaScript are a perfect fit for this project. While I am new to freelancer.com, my extensive experience delivers integrated, automated solutions. Regards, Jason McLachlan
$10 SGD in 3 days
4.5
4.5

Hi, I am a Frontend Mobile Developer with 8 years of rich experience with a background in performance-focused application development. I am familiar with React Native, Flutter, JavaScript, Mobile UI, and State Management. For this project, the most important part is building a smooth timeline editing experience that remains responsive even when handling complex video operations. I can help design and implement high-performance mobile UI systems, optimize rendering and interactions, and create an intuitive editing workflow that feels natural for users. I'm an individual freelancer and can work on any time zone you want. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
$15 SGD in 40 days
4.5
4.5

Hi, I understand you're looking for an experienced frontend engineer to help build and optimize a mobile-first, performance-heavy video editing UI with a strong focus on responsiveness, gesture-based interactions, and real-time timeline performance. ✔ Mobile-first UI optimization for video editing workflows ✔ Responsive, gesture-driven interface (drag, pinch, trim, scrub) ✔ Multi-track timeline architecture (video, audio, text, effects) ✔ Smooth playback UI with frame-accurate scrubbing and low-latency controls ✔ Performance optimization (GPU rendering, virtualization, lazy loading, caching) ✔ Separation of UI layer and media processing pipeline ✔ Support for scalable architecture (Redux/Zustand or custom state system) ✔ Component-based structure for timeline, preview, and tools panel ✔ Design collaboration to refine intuitive UX for editing workflows ✔ Future-ready structure for AI tools, filters, and advanced effects integration I focus on building high-performance frontend systems with smooth interaction design, scalable architecture, and careful optimization for real-time media-heavy applications. I also understand this is an early-stage project—what matters most is building a strong foundation that can grow over time, even with limited resources at the start. Looking forward to discussing your project. Best Regards, Usama K.
$7 SGD in 1 day
3.8
3.8

Dear Client, I am a Full-Stack Developer with 10+ years of experience building high-performance web applications, mobile solutions, real-time dashboards, and complex interactive interfaces. I hold a B.Sc. in Computer Science and Engineering (CSE) from BUET and specialize in scalable frontend architectures and performance optimization. I understand you are building a mobile-first video editing platform requiring a responsive timeline system, advanced touch interactions, real-time preview workflows, AI-assisted editing features, and smooth cross-platform performance. I can help design and implement optimized UI architecture, timeline virtualization, gesture handling, state management, component isolation, and rendering strategies that maintain responsiveness while supporting future expansion into professional-grade editing capabilities. Relevant skills: React, React Native, TypeScript, JavaScript, Redux, Zustand, mobile UI optimization, performance engineering, and interactive application development. I appreciate your transparency regarding budget. For a project of this scale, I would recommend starting with an MVP focused on the timeline, preview player, core editing tools, and mobile UX foundation, then expanding features incrementally as the project grows. Best regards, Md Ruhul Ajom
$5 SGD in 40 days
5.4
5.4

As an experienced web and software developer, I believe I am the perfect fit for your project as I can uniquely bring your vision of a user-centric mobile video editing app to life. Let's discuss some of my unique skills which make me the ideal candidate for this job! First and foremost, I am highly proficient in frontend development, with a proven track record to showcase my capability of creating performance-heavy UI systems. This directly aligns with your project requirements of optimizing your app for mobile devices and ensuring seamless responsive design across platforms. Moreover, my expertise extends to key areas such as UI/UX strategy, digital product experience, and mobile app development that are essential for successfully integrating your core mobile video editing features. As a technology partner with agility and reliability at the core of my work ethics, I assure you clean, reliable, and efficient solutions that resonate with your vision. Whether it's transforming complex requirements into scalable and efficient systems or providing innovative solutions without losing sight of the user experience, my dedication is towards delivering products that don't just meet but exceed expectations. Choose me for high-quality and future-ready digital solutions that grow with your needs. Let's turn your idea into reality together!
$7 SGD in 40 days
4.0
4.0

Hello, I understand you’re looking for a frontend engineer to build a mobile-first, user-centric video editing app with a responsive timeline system, smooth playback, gesture-based trimming, multi-track support, and optimized rendering for 60fps. I can help create the UI architecture with React Native (or Flutter if preferred), implement virtualized timeline rendering, GPU-accelerated previews, pinch/drag gestures, and ensure performance-heavy UI elements run smoothly on mobile. For the first MVP, I’d focus on the mobile timeline UI, basic trim/split workflow, playback preview, and media thumbnails while leaving AI tools and advanced features for later updates. This ensures we deliver a stable, responsive foundation quickly and efficiently. Hourly rate: 8 SGD/hour Delivery: Initial MVP UI within 2–3 weeks (can refine further with your feedback) Quick question: do you already have a backend/media engine in place, or should I design the frontend architecture to integrate with it from scratch? Best regards.
$8 SGD in 40 days
3.9
3.9

Being a highly proficient developer, my expertise is in line with the needs of your project. I have an outstanding track record in writing clean and maintainable code that leverages the power of Flutter to deliver high-performing apps. With an excellent understanding of responsive design and mobile optimization, I am well-suited for this. Additionally, I understand the importance of collaborative work and involving all team members in structuring UI elements for optimum user experience. I’ll develop powerful UI components referring to my knowledge in performance-heavy UI systems such as Timeline System, drag-to-trim capabilities, zooming smoothly within timeline aspects, layer stacking and Playback Engine UI among others. Furthermore, I have a knack for optimizing front-end development which would be quite beneficial for your project given its high hardware and processing dependence. My previous work includes memory management, rendering performance optimization using GPU-accelerated rendering and virtualization approaches which ensures only visible clips are rendered. In essence, not only do my skillset meet your key requirements, but my approach - heavily focused on performance and productivity - aligns perfectly with what you need for this project. I assure you the most efficient resource optimization, by minimizing rendering tasks when dealing with small updates and leveraging memory cleasning aggressively among other tactics to realize a smooth 60fps User Interface.
$4 SGD in 40 days
4.1
4.1

Hi, I will help you design and build a high performance mobile video editing UI with a strong focus on responsive design, smooth interaction, and real time performance. I understand you want a CapCut style timeline system with multi track editing, gesture based controls, frame accurate scrubbing, and a fluid 60fps experience on mobile devices. I will focus on building a clean and scalable frontend architecture that supports heavy UI operations without lag. This includes Regards, Shabahat
$10 SGD in 40 days
3.7
3.7

Hello, I have read your Complete proposal your Need a Experienced Flutter developer for video editing app . I have more than 3 years of work experience in Mobile application developemnt have a hand-on expeirence in Many terms like Figma to Flutter, Firebase, Google maps and Rest APIs integrations I am Confident that will handle your task in a reasonable price and time and I am available to start working on it Let's chat to Proceed
$3 SGD in 40 days
3.7
3.7

As a seasoned full-stack developer, I bring to the table a diverse skill set that aligns perfectly with your project needs. In particular, my expertise in mobile app development and hands-on experience with both React Native and Flutter make me well-equipped to optimize the UI of your video editing application for seamless performance across all platforms. Over the past five years, I've worked extensively on mobile applications and understand intimately the imperatives of responsive design and mobile optimization. With your emphasis on creating performance-heavy UI systems, it's worth mentioning my proficiency in leveraging GPU-accelerated rendering such as WebGL or Metal for a fluid, uninterrupted user experience. Moreover, I'm confident in translating your vision into reality by integrating all the key features you've listed - from trimming and splitting clips to color correction sliders and AI-powered automations. I believe my real-time solutions using debounced state management (Redux/Zustand/MobX) will guarantee smooth rendering at all times. In conclusion, I'm excited about the possibility of creating a user-centric mobile video editing app with you and vow to invest all my technical skills and collaborative abilities into ensuring its success. Looking forward to connecting!
$7 SGD in 40 days
3.8
3.8

Singapore, Singapore
Member since Jun 8, 2026
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