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
