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Ideal Skills and Experience: Title: Backend Developer for AI Avatar Video Automation (HeyGen API) We are building an automated system that generates personalized AI avatar videos based on health data (DEXA scans, VO2 max results). Scope: • Integrate HeyGen API to generate avatar videos dynamically • Accept structured input (name, body fat %, VO2 max, etc.) • Dynamically generate scripts (optionally using OpenAI) • Trigger video creation and handle webhook responses • Store and return completed video URLs Requirements: • Strong experience with REST APIs • Backend development (Python FastAPI or Node.js preferred) • Experience with automation workflows • Familiarity with cloud deployment (AWS, Vercel, or similar) Nice to Have: • Experience with video generation APIs • PDF data extraction (DEXA reports) • OpenAI API integration Goal: Create a scalable system capable of generating personalized videos across multiple locations (~150 clinics).
Projektin tunnus (ID): 40353178
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165 freelancerit tarjoavat keskimäärin $34 USD/tunti tätä projektia

I understand the importance of integrating Apple Health data with Heygen AI to create personalized AI avatar videos based on health metrics like DEXA scans and VO2 max results. With my extensive experience in backend development and integrating APIs, I am confident in being the technical bridge for your project. My expertise in building scalable solutions using Python FastAPI and Node.js, along with my background in AI/ML development, makes me the perfect fit for this unique project in the HealthTech industry. For your AI Avatar Video Automation system, one strategic insight I can offer is optimizing the workflow for seamless integration of Heygen API to dynamically generate personalized videos. My successful track record in handling complex projects like blockchain and serving over 1 million users proves that I can handle the intricacies of this task. Trust that I can deliver a high-quality, automated system that meets your requirements and exceeds your expectations. I encourage you to reach out to discuss the roadmap for integrating Apple Health data with Heygen AI and building the automated system for AI avatar video creation. Let's collaborate to bring your project to life and achieve your goal of creating a scalable solution for personalized videos across multiple locations.
$40 USD 15 päivässä
9,1
9,1

Hi, I can build a scalable backend system that automates personalized AI avatar video generation using the HeyGen API—handling data intake, script generation, video processing, and delivery end-to-end. With strong experience in API integrations and automation workflows, I’ve built systems that orchestrate multiple services (LLMs, webhooks, async jobs) reliably at scale. The key here is designing a pipeline that is asynchronous, fault-tolerant, and easy to extend across ~150 clinics. My approach: Backend: Python (FastAPI) or Node.js (your preference) Flow: Accept structured input (name, body fat %, VO2 max, etc.) Generate personalized script (via OpenAI if enabled) Trigger HeyGen video generation Handle webhook callbacks for completion Store and return final video URLs Architecture: Queue-based processing (Celery / BullMQ) for scalability Database (PostgreSQL) for tracking jobs, inputs, outputs Secure storage + logging for traceability Retry/failure handling for API reliability This will be built to scale smoothly as volume grows across locations. We can communicate more on this matter. Kindly accept the offer so we can discuss further. Thank you Jennifer
$38 USD 40 päivässä
9,3
9,3

With our substantial expertise in AI development and API integration, we are excellently positioned to take on the challenge of integrating Apple Health Data with Heygen AI. Our specialized knowledge in fitness-focused app development has previously involved handling intricate data like DEXA scans and VO2 max results, making us adept at tackling the unique requirements of your project. As sensible as your intention to generate personalized AI avatar videos from health data is, it requires an astute back-end developer, a role we fittingly fill. You can completely count on our competence when it comes to REST APIs and backend development in Python FastAPI and Node.js - just what you prefer! Our fluency in automation workflows and familiarity with cloud deployment (AWS/Vercel) further assure you that we won't just deliver a functional system; it'll be scalable too. Beyond the listed requirements, our valuable skill set also includes data extraction (PDFs) and experience with the OpenAI API – marking an additional support we can lend for even greater efficiency. Challenge us, and we’ll impress you with our proven reliability in crafting cutting-edge digital solutions. Let's make your vision a reality - together!
$25 USD 40 päivässä
9,0
9,0

Hi, This is Elias from Miami. I checked your project description and understand you need a backend system that can take structured health data, generate a personalized script, send it through HeyGen for avatar video creation, handle webhooks, and return/store the final video URL in a scalable way. The goal is to build a reliable automation pipeline that can support high-volume personalized video generation across many clinic locations without manual work. My approach would be to build this as a clean API-driven backend with separate modules for input validation, script generation, HeyGen job orchestration, webhook handling, and storage/logging, so it stays stable and easy to expand later. I’ve worked on backend automation systems and API integrations before, including webhook-based workflows, cloud deployment, and structured data pipelines. I have a few questions to get a better understanding: Q1 – Will the system receive already-structured health data from another app/CRM, or should part of the backend also handle extraction/parsing from raw PDF reports? Q2 – Do you want script generation to follow fixed templates with variable placeholders, or should OpenAI generate more dynamic personalized messaging per patient? Q3 – Where should the completed video URLs and job records be stored — your existing database/CRM, or should this project include setting up that storage layer too? Looking forward to hearing from you.
$50 USD 40 päivässä
8,4
8,4

Hi there, I am leading a team of senior backend developers and would like to work with you on building your AI avatar video automation system according to your requirements. We have strong experience with REST APIs, automation workflows, and scalable backend systems using FastAPI and Node.js, along with integrations involving OpenAI and third-party video APIs. I am really interested to start this project for you. We can integrate the HeyGen API, handle structured health data inputs, dynamically generate scripts, trigger video creation with webhook handling, and store/return final video URLs in a scalable architecture suitable for multiple clinics. I would like to discuss in detail your preferred stack, deployment setup, and data flow so we can deliver a robust and maintainable solution. Kindly drop me a message and discuss more with me. Thanks
$30 USD 40 päivässä
8,2
8,2

Hi there, I will build the FastAPI backend that accepts structured health inputs, generates personalized scripts via OpenAI, triggers HeyGen avatar video creation, and returns completed video URLs via webhook handling. For scaling across 150 clinics, I will implement a queue-based architecture — this prevents hitting HeyGen rate limits during peak hours and ensures reliable video delivery even under concurrent requests. Questions: 1) Are DEXA reports already parsed, or do you need PDF extraction included? 2) Do you have a HeyGen account with API access ready? Looking forward to your response. Best regards, Kamran
$34 USD 40 päivässä
8,5
8,5

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in PHP, Mobile App Development, iPhone, Objective C, Software Development, Backend Development, Data Integration, API Development, API Integration, AI Development and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$30 USD 5 päivässä
8,9
8,9

Hello, Scaling a video pipeline across 150 clinics requires a robust, asynchronous architecture to prevent bottlenecks during PDF parsing and rendering. I will build a FastAPI backend using PyMuPDF or AWS Textract to extract metrics from DEXA reports. This data feeds into OpenAI to generate personalized scripts, which are then pushed to the HeyGen v2 API. To ensure the system is production-ready, I’ll implement: -> Webhook Listeners: To handle rendering lag and update video URLs in real-time. -> Elastic Scaling: Deployment via AWS Lambda or Vercel to manage concurrent requests from all locations. -> State Management: Tracking video status in Supabase or MongoDB. Looking forward to discussing more details. Best, Niral
$25 USD 40 päivässä
7,8
7,8

Hello, I understand you want to build a backend system that integrates Apple Health data like DEXA scans and VO2 max with HeyGen API to automate personalized AI avatar videos. I'll set up an API that receives health data, creates video scripts dynamically (with or without OpenAI), triggers HeyGen video generation, and captures webhook notifications to store and share video URLs. I'll use Python FastAPI or Node.js for smooth API handling and set it up on a cloud service like AWS or Vercel for scalability across many clinics. I'll also ensure automation workflows keep everything running seamlessly. Looking forward to your reply! What specific data fields from Apple Health should the system prioritize for video personalization? Best regards,
$25 USD 21 päivässä
7,3
7,3

Hello, As a professional freelance developer with a focus on Backend Development and PHP, I believe I am the ideal candidate for integrating Apple Health data with the HeyGen AI system. My extensive experience working with REST APIs and automation workflows make me well-prepared to handle the tasks of integrating the HeyGen API, accepting structured inputs, generating scripts dynamically, triggering video creation, and handling webhook responses. Not only am I proficient in Python FastAPI and Node.js, which are preferred for backend development in this project, but I am also familiar with cloud deployment, specifically AWS and Vercel. This knowledge will be pivotal in creating a scalable system capable of generating personalized videos across multiple locations. Moreover, my skills extend to video creation APIs as well, which is a "nice-to-have" requirement for this project. Coupled with my propensity for problem-solving and affinity for learning, these additional skills will go a long way in ensuring we deliver nothing short of excellence in fulfilling your vision for this project. Contact me today to discuss your project details further and let's get started transforming your vision into a functional reality!" Thanks!
$50 USD 1050 päivässä
7,2
7,2

Hi there, We’ve developed similar systems that generate personalized videos using AI, including OpenAI and Azure Video Indexer for script generation and video optimization. We also have extensive experience with video-related workflows, such as extracting data from DEXA reports and using it to create engaging content. In addition to backend expertise, we provide dedicated front-end developers to ensure a fully integrated solution. We can also handle AWS server management and CI/CD pipelines, so you don’t need to hire separate resources. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. Best regards, Adil
$35,38 USD 40 päivässä
7,3
7,3

Building an automated system that generates personalized AI avatar videos from health data is right up my alley. With over 6 years of dedicated software development experience, our company, WellSpring Infotech, has honed its skills in API integration, backend development (especially in Python and Node.js), and building scalable solutions across industries like healthcare. We've previously integrated complex AI APIs such as OpenAI and TensorFlow to create context-aware systems and intelligent processes - exactly what this project requires. Moreover, our team has a knack for automation workflows, a skill that will come in handy while dynamically generating scripts based on the given input and triggering video creation using the Heygen API. We are also well-versed in cloud deployment, proficiently handling platforms like AWS and Vercel. Importantly, we appreciate the goal you've set for this project - creating a scalable system across multiple locations. Through our end-to-end service delivery approach and security-oriented mindset, we commit ourselves not just to meet objectives but to exceed expectations. Let us take charge of the technology aspect so you can focus your energy on other key aspects of your business. Thanks...
$25 USD 40 päivässä
7,8
7,8

Hi there To make this system scalable across clinics, the most critical part is building a reliable backend workflow that turns structured health data into personalized videos without breaking on generation, webhook, or storage steps. I’ll approach this by creating a clean pipeline for data intake, script generation, HeyGen video creation, webhook handling, and completed asset delivery. This ensures the system is stable, traceable, and ready to support volume across multiple locations. This means I understand how to handle REST APIs, async job flows, and automation logic around personalized content generation. I’d recommend FastAPI or Node.js with a queued workflow, persistent job tracking, and webhook verification, plus optional OpenAI integration for dynamic scripts and PDF extraction for DEXA inputs. HeyGen supports both direct video generation and webhook callbacks, which fits this use case well. My process is simple: define the input schema and video template variables → build generation and callback services → validate delivery, retries, and cloud deployment. I’m ready to begin with the intake model and HeyGen integration layer, then move quickly into end-to-end automation. If this direction aligns, we can discuss in detail in chat..
$50 USD 40 päivässä
6,9
6,9

Hi there, I have read your project requirement. You need a backend system to automate AI avatar video generation using HeyGen API, including structured data input handling, dynamic script generation, webhook processing, and scalable delivery across multiple clinics. We have strong experience building API-driven systems using FastAPI and Node.js, along with automation workflows and AI integrations. We can design a scalable backend that accepts health data inputs, generates personalized scripts (via OpenAI if needed), triggers video creation through HeyGen, handles webhook responses, and stores/returns final video URLs efficiently. A few quick questions: =================== Do you prefer Python (FastAPI) or Node.js for the backend? Will input data come via API, dashboard, or PDF upload? Do you already have HeyGen API credentials and webhook endpoints configured? Do you need an admin panel or API-only solution? Best Regards, Srashtasoft Team
$25 USD 40 päivässä
6,9
6,9

Hi, We’re a small team of AI-focused engineers with strong experience in building scalable backend systems and automation workflows—this project aligns perfectly with our expertise. We have hands-on experience integrating REST APIs (including AI/video platforms), building robust backends using FastAPI and Node.js, and orchestrating async workflows with webhooks and queue systems. We’ve also implemented OpenAI-based dynamic content generation and handled structured data pipelines similar to your DEXA/VO2 inputs. For your use case, we’d design a modular system that: • Accepts and validates health data inputs • Generates personalized scripts (rule-based + OpenAI) • Integrates seamlessly with HeyGen API for video creation • Handles webhook callbacks reliably • Stores and serves video URLs via a scalable cloud setup (AWS/Vercel) We also bring experience in document parsing (PDF extraction) and multi-tenant systems—key for scaling across 150+ clinics. Our focus is clean architecture, reliability, and fast iteration. Happy to discuss your workflow and share relevant case studies. Best regards,
$30 USD 40 päivässä
7,4
7,4

Hello, We've thoroughly reviewed your project requirements for integrating Apple Health Data with Heygen AI to generate personalized avatar videos. This project aligns perfectly with our expertise in AI-First Product Development and API Integration. We've successfully completed a similar project where we integrated health data to dynamically create personalized AI-driven content. Our experience with Heygen API, OpenAI, and automation workflows makes us confident in delivering a robust, scalable solution for your needs. With over 8 years of experience, we specialize in backend development using Python FastAPI, REST APIs, and cloud deployment on platforms like AWS. Our proficiency in video generation APIs and data integration will ensure seamless execution and exceed your expectations. We invite you to message us with more details so we can craft a tailored proposal within 24 hours, demonstrating how we can best meet your project's unique needs. Looking forward to collaborating on this exciting venture. Best regards, Puru Gupta Top 1% on Freelancer.com
$60 USD 40 päivässä
7,1
7,1

As a dedicated and passionate professional with extensive backend development experience, API integration expertise, and a deep understanding of HeyGen, I am primed to bring your vision for integrating Apple Health Data with HeyGen AI to life. My core competencies in REST APIs, backend development (especially Python FastAPI and Node.js), automation workflows, and cloud deployment (AWS) align perfectly with your project requirements. Moreover, my familiarity with video generation APIs, PDF data extraction (essential for DEXA reports), and OpenAI API integration adds an extra dimension to my skill set that can be an asset while working on this project. My goal-oriented mindset and track record in creating scalable systems make me confident that I would be an excellent addition to your team as you seek to generate personalized videos across multiple locations. As the complexity of this project demands, I offer much more than just a solution. With profound experience in mobile app development, including Flutter and React Native proficiencies to handling intricate prompt engineering and AI model deployment tasks associated with LLM's like GPT-4o, Claude, LangChain, RAG Systems, AI Agents and more; efficient completion along with fast-paced innovation is my forte. Join me on this journey of crafting a user-friendly scalable app that brings personalization to the fingertips of every end user with dependable performance strategies upto par with best industry practices Thanks, Jay
$38 USD 40 päivässä
6,7
6,7

I am a skilled backend developer with extensive experience in integrating APIs and building automation workflows. My proficiency in both Python FastAPI and Node.js, combined with cloud deployment expertise using AWS, positions me well for the integration of HeyGen API to generate personalized AI avatar videos. In previous projects, I have successfully handled REST API integration, including video generation APIs, which required managing structured input and ensuring seamless video creation triggers. I have also worked on projects that necessitated OpenAI API integration, allowing dynamic script generation based on various input parameters, similar to your project requirements. I am particularly interested in the challenge of creating a scalable system capable of operating across multiple locations, as specified in your goal. Would you be open to discussing any particular preferences for the automation workflows or API responses? Looking forward to exploring how I can contribute to your project's success.
$25 USD 40 päivässä
6,8
6,8

Hello, With 4 years of experience in Mobile App Development, PHP, API Integration, and Backend Development, I am well-equipped to handle your project requirements. I have a strong understanding of integrating APIs and developing backend systems. I have thoroughly reviewed your project description and am confident in providing a professional solution that aligns with your goals. My expertise in PHP, Mobile App Development, Software Development, Backend Development, and API Integration makes me a suitable candidate for this project. I kindly request you to connect in chat for a detailed discussion. I am open to discussing further details such as budget and timeline to ensure the successful completion of the project. Best regards, Taimoor from Pixels Soft Please feel free to reach out for further discussion.
$38 USD 40 päivässä
6,5
6,5

Hello, I can help build your backend system to automate AI avatar video creation using the HeyGen API. I have experience with REST APIs and backend frameworks like Python FastAPI, and I understand workflows for dynamic script generation and webhook handling. I will ensure smooth integration of health data inputs such as DEXA scans and VO2 max to generate personalized videos effectively. The system will be scalable to support around 150 clinic locations, and I am familiar with cloud deployment on platforms like AWS or Vercel. I can also assist in incorporating OpenAI for dynamic script generation if needed, ensuring the video creation process is automated end-to-end for your project needs. Thanks, Teo
$25 USD 30 päivässä
6,5
6,5

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