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

Frontend: Strong expertise in React.js

Mobile: Proven experience with React Native

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

Architectural Ownership: You design and drive the technical vision

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

Creative Freedom: Flexibility to choose the best tools and solutions

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

Originally posted on Himalayas