a developer to create an automatic transcription + subtitle file generation tool for TikTok, Instagram Reels, and YouTube Shorts videos

Job ID: 39704203

Budget: $5,000 – $10,000 USD

Job Posting (Tool Development)
Overview
We are Creative Sense, a Japan-based company working with major partners such as SoftBank and Microsoft.
We are looking for a developer to create an automatic transcription + subtitle file generation tool for TikTok, Instagram Reels, and YouTube Shorts videos.
The tool should allow users to:
Upload a video


Automatically transcribe Japanese audio with high accuracy


Output subtitle files (.srt / .vtt)


Required Features
Support for uploading video files (MP4, MOV, etc.)


Automatic transcription of Japanese audio (high accuracy)


Subtitle file output (.srt or .vtt)


Automatic timestamp generation


Usable either as a web-based tool or a local application


Nice-to-Have Features
Simple editor UI for manual correction of transcription errors (web-based)


Multi-language support (Japanese + English, etc.)


API integration (e.g., automatically process uploaded videos and return results)


Utilization of open-source speech recognition models (e.g., Whisper)


Timeline
MVP delivery within 4–6 weeks after contract signing


Additional features can be discussed and implemented step by step


Budget
Around USD 5,000 (including taxes and platform fees)


Flexible depending on final feature scope


Requirements
Experience in application development with Python / Node.js


Familiarity with speech recognition APIs (Whisper, Vosk, Google Speech-to-Text, etc.)


Comfortable with project management using GitHub (or similar tools)


Preferred Skills
Frontend development (React / Next.js)


Understanding of video editing and social media operations


Experience deploying with Docker or on cloud platforms (GCP/AWS)


Deliverables
GitHub repository or deployed environment on a cloud platform


Basic usage manual / README


How to Apply
Share past development experience and portfolio


Propose a preferred tech stack (e.g., Whisper + FastAPI + React)


Provide an estimated development schedule
Related categories: PHP Python Audio Services Transcription OCR