App Development Jobs in Blacktown

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App Development tasks in Blacktown

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I have an existing web app built with Next.js and Supabase, hosted on Vercel. It’s already in daily use. I’m looking for an experienced Australian developer to review it and help me turn it into a commercial SaaS product. This task (Stage 1): Review the code for security, structure and performance issues Recommend how to make it production-ready and usable by multiple businesses Provide a written summary, plus a quote and timeline for the next stages You’ll need: Strong Next.js, React and Supabase/PostgreSQL experience Experience building and launching SaaS products Experience integrating third-party APIs In your offer, please include links to 2–3 live apps you’ve built and a short description of a similar project. An NDA must be signed before any project details or code are shared. There’s ongoing paid work for the right person after this task.

Mon Oct 26 2026

about 7 hours ago

Open

I’m looking for a developer to take over from the current point of an existing trading-card scanning and valuation web app and help get it to a stable live stage where real users can start using it. The app is already built and under active development. I am NOT looking for a rebuild. The goal is to continue from the existing codebase, finish the remaining core issues, harden the app for real users and help get the first paid/public beta live. The app must work on both mobile and desktop, with mobile/iPhone as the primary workflow. Core scanning needs to support: * single-card photos * up to 10 single-card photos in one batch * lot photos containing up to 10 cards * up to 10 lot photos in one batch * potentially up to 100 physical cards per submission For a 10-card image: 10 real cards → 10 persistent card instances → 10 complete, isolated and upright crops. Remaining areas include: * card detection/cropping * OCR and exact card identification * mobile photo upload * batch reliability * timeouts/retries/recovery * persistence * performance * pricing integration * final testing and regression fixes * preparing the app for a reliable live/paid beta The project already has a working UI, backend, database, automated tests, private Vercel deployments, test fixtures and development documentation. I want someone comfortable taking over an existing codebase, understanding what is already working and finishing it rather than replacing it unnecessarily. This is intended to become a real commercial product. There are multiple future development stages planned, so for the right developer there may be substantial ongoing paid development work after the initial release. Please include your relevant experience, examples of similar existing-app takeover/completion work, your approach, estimated time, hourly or fixed-price offer, and what you expect to get live within that offer.

Sun Oct 25 2026

2 days ago

Open

I’m looking for quotes from developers to help diagnose, improve and complete Stage 1 of an existing web application that scans, identifies and values trading cards from photos. The app is already built and running in a private development environment. I am NOT looking for a rebuild. Required scanning capability: * 1 single-card photo * up to 10 individual single-card photos in one batch * 1 lot photo containing up to 10 physical cards * up to 10 lot photos in one batch * potentially up to 100 physical cards across 10 lot photos Every visible card needs to be treated separately and remain correctly mapped through processing. For example: 10 physical cards in one image = 10 separate persistent card instances = 10 complete, isolated and upright card crops. The app then needs to identify each card and obtain a value where supported. Cards that cannot be confidently identified must be sent for review rather than incorrectly identified or valued. Current areas needing work include: * multi-card detection reliability * clipped/incomplete crops * duplicate or fragment detections * neighbouring-card contamination * orientation * OCR/card-number reading * exact card identification * batch processing * processing speed * timeouts/retries/recovery * persistence/reload reliability Existing project includes a working UI, backend processing, database, automated tests, Vercel Preview deployments, test fixtures and documented acceptance criteria. Useful experience: JavaScript/Next.js, computer vision, image processing, OCR, AI vision APIs, backend jobs, Vercel and debugging existing applications. Please provide: * relevant experience * examples of similar work * your proposed approach * estimated time/hours * hourly rate or fixed-price quote * what you expect to complete within that quote More detailed technical documentation and test evidence can be provided to suitable applicants. Please quote before any work begins.

Sun Oct 25 2026

2 days ago

Open

Hi! My client have created a restaurant staff management app using Claude AI and need an experienced developer to help make it fully functional. The app includes: * Staff roster and scheduling * Clock-in / clock-out * Daily staff tasks and checklists * Employee KPI and performance tracking * Manager dashboard * Staff login and access What I need: 1. Review my existing Claude app and code. 2. Complete any missing functions. 3. Set up database, hosting and secure logins. 4. Make it work smoothly on iPhone, Android and desktop. 5. Help launch the app and teach me how to manage it. I prefer someone experienced with Claude AI, React and web app deployment. Please provide your experience, estimated cost and completion time. Looking for someone reliable for ongoing support. Thank you!

Sydney NSW 2000, Australia

Sun Oct 25 2026

2 days ago

Open

I run a small Melbourne business and need help testing call forwarding on a real phone service. What’s involved: about 45 minutes by phone, at a time that suits you. You turn call forwarding on and off yourself using your provider’s usual app or settings, and a few test calls are made to your number. I’ll send step-by-step details once the task is assigned. Please note: test calls are recorded. You’ll need: a home or business landline on the NBN (not a mobile) that you can change the forwarding settings on. Budget covers your time and any call charges.

Sat Oct 24 2026

3 days ago

Open

I need a professional to make me a app id you know how you make app really good ones hmu please

Sat Oct 24 2026

3 days ago

Open

Need a game designer to create a high-quality game needed to be made for the App Store. Message me for detail details thank you.

Sat Oct 24 2026

3 days ago

Open

Create a user friendly, modern App - EXPERIENCE CRUCIAL

Fri Oct 23 2026

3 days ago

Open

Hi, I'm looking for a Perth developer to take a working prototype of our tug master training app through to a company-grade iOS and Android release, and I'd like a quote from your team. The app is for training and assessing tug masters, deck crew and engineers in the towage industry. The prototype already works: lessons, quizzes, force calculators, simulator exercises, competency checks, signatures, logs and PDF certificates. The job is mainly packaging for the stores, logins and roles, central records with offline sync, a company admin portal, our own back office, and Stripe billing. Attached: - Developer brief (8 pages) with the full scope, split into 14 items and three phases - The prototype app (index.html, content.json, README with the data model) Could you please send: - A fixed price per scope item and per phase, and your day rate for changes - Your recommended back end and its expected running costs - A timeline per phase - Two examples of similar work (offline apps, signed records, or regulated industries) - Who would do the work, and whether any of it would be offshore I'd appreciate your quote by 15/11/26. Happy to walk you through the prototype on a call first. Thanks, Liam Oversea Maritime

Sat Oct 17 2026

9 days ago

Open

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Last updated on 27th Oct 2026

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Type of app development job	1-2 tasks/week	3-5 tasks/week	5+ tasks/week
Computers & IT	$258	$645	$903
Computer Repairs	$240	$600	$840
Computer Support	$218	$545	$763
Computer Training	$200	$500	$700
Wifi Help	$230	$575	$805
Printer Help	$290	$725	$1,015
Router Modem Setup	$240	$600	$840
Laptop Repair	$200	$500	$700
Internet Help	$260	$650	$910

*Based on average app development task prices in Blacktown. Actual marketplace earnings may vary

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App Development Jobs in Blacktown

Browse through over 500 App Development Jobs.

See what you could earn

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App Development tasks in Blacktown

Next.js / Supabase developer to review web app

Developer to Take Existing App to Live Paid Beta

Developer Needed — Existing Trading Card Scanning & Valuation App

Developer Needed to Launch Claude AI App

Help test call forwarding on your phone (not Mobile) , 45 mins, remote

Make me a app I need a pro to do this message me for details

Need a app made

Build me an App

Take a maritime training to a company-grade iOS and Android release,

Unlock new income opportunities in Blacktown