Senior Full-Stack Mobile Developer (AI & NLP Focus)

This is a remote position.

Job Title: Senior Full-Stack Mobile Developer (AI & NLP Focus)
URGENT HIRING
Work Roster: 10:00 AM – 6:00 PM (Melbourne Time)
Weekends: Saturday & Sunday
Employment Type: Full-Time | Long-Term
Experience Required: 5+ years in Full-Stack Development
Role Overview We are seeking a Senior Full-Stack Mobile Developer with Technical Leadership capabilities for our client in Australia to take ownership of system architecture, development, and long-term maintenance across multiple products. This role is ideal for someone who enjoys building scalable systems from the ground up in a fast-moving startup studio environment.
Key Responsibilities
Architecture & Development
- Lead end-to-end development using a shared, modular technology stack

- Design and implement scalable solutions using React Native and Node.js

- Ensure clean, maintainable, and reusable code across multiple applications

- Frame internal dashboards, monitoring, and tooling as part of designing scalable systems and shared platforms.

AI Development
- Building an AI-driven mobile application focused on NLP-based journaling , sentiment analysis , and pattern detection , correlating user inputs with pain/stress signals and delivering empathetic, logic-driven responses.

- Implement and optimise LLM and Vision APIs , specifically GPT-4o

- Develop high-accuracy image recognition and structured text generation pipelines

- Design AI-chaining logic to support multi-step intelligent workflows

- AI audit logs, prompt troubleshooting, and observability as part of building reliable and debuggable AI pipelines.

Cross-Application Scalability
- Build a reusable Master Engine for Authentication, Payments and AI orchestration

- Ensure consistency and scalability across the entire SaaS portfolio

- Ensure user management, subscriptions, and payments as reusable platform components that support multiple products.

Admin & Internal Systems
- Develop a centralised Admin Command Center for internal operations

- Enable system monitoring, user management, and AI troubleshooting.

System Quality & Reliability - Managing real-time alerts for API failures alongside database performance and bottleneck tracking.

Technical Requirements
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Frontend: Strong expertise in React.js

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Mobile: Proven experience with React Native

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Backend: Node.js with RESTful API design

- Hands-on experience with OpenAI APIs

- Prompt engineering and Vision models

- Hands-on experience with Python

- Experienced in NLP, computer vision, LLMs, and Python-based data workflows.

- PostgreSQL (Supabase preferred) with real-time data synchronization

- Stripe integration experience

What Makes This Role Exciting
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Architectural Ownership: You design and drive the technical vision

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Startup Studio Model: Work across 4+ AI products instead of a single long-term project

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Creative Freedom: Flexibility to choose the best tools and solutions

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Career Growth: Opportunity to lead technical expansion as the product portfolio scales

Originally posted on Himalayas