Full-stack Developer Remote-Freelance

H&HIS’s client is a company in the technology company based in Ho Chi Minh City. They are currently seeking a Full-stack Developer Remote-Freelance to work remotely or on a freelance basis with the following responsibilities:

Job description

– Develop a full web application (both frontend & backend) from scratch.

– Design and build user interfaces including dashboards, forms, and data processing flows.

– Build backend APIs using Node.js or Python (FastAPI).

– Design databases (PostgreSQL or MongoDB), and manage file/media storage (AWS S3, Firebase, etc.).

– Integrate third-party APIs such as OpenAI (GPT, Whisper), Claude, or equivalent AI/NLP services.

– Contribute to technical architecture: ensure efficiency, security, and scalability.

Requirements

– Experience in full-stack web app development (preferably AI/SaaS tools).

– Proficiency in React (or similar frameworks) and Node.js or Python for backend.

– Experience in building and consuming REST APIs; familiarity with microservices is a plus.

– Knowledge of cloud platforms such as AWS, GCP, or similar.

– Preference for candidates with prior integration experience of AI tools such as ChatGPT, n8n, or AI agents.

– Experience handling media data (audio, video) is a bonus.

– Strong UI/UX mindset: clean, intuitive design and mobile responsiveness.

– Able to work independently and collaborate effectively in a remote setting.

Benefits

– Salary and other benefits can be negotiable