Mac OS is Apple's operating system to maximize the user experience of using their products. A Mac OS Developer can help clients create custom built software and programs to get the most out of their Mac computers and devices. Hiring one of our expert Mac OS developers allows clients to bring their computer dreams to life.

Here’s some projects that our expert Mac OS Developers made real:

  • Integrating a custom software stack with assembly language and languages such as C and C++
  • Providing support for failed Macbook Pro start-ups lacking storage
  • Creating the ability to add folder files into a text document
  • Developing an open-source NSLogger logging system for iOS/MacOS
  • Installing docker based software from Github for Mac OS Intel users
  • Combining Swift with Xcode and SwiftUI to create an app for a MacOS
  • Perfecting shell related experience on both Linux and Mac OS platforms as well as PostgreSQL & Python proficiency
  • Designing Amazon Web Services elements such as CloudFormation Template & CloudWatch Alarms with programming language such as Python in two days or less
  • Crafting simple note taking apps using the swift language on a macOS

At Freelancer, we provide the expertise of our talented team of professional developers who specialize in creating the best unique experiences possible using Mac OS. Projects range from creating efficient software stacks, delivering robust troubleshooting services, constructing logging systems and integrating them into existing frameworks, creating specialized apps with Swift, and perfecting Amazon Web Service elements.

Whether you're looking for personal or commercial purposes, our team of professionals have the know-how to create the perfect experiences with Mac OS. Take your project from concept to reality and post your own job description on our website to hire one of Mac OS Developers today.

From 44,738 reviews, clients rate our Mac OS Developers 4.83 out of 5 stars.
Hire Mac OS Developers

Mac OS is Apple's operating system to maximize the user experience of using their products. A Mac OS Developer can help clients create custom built software and programs to get the most out of their Mac computers and devices. Hiring one of our expert Mac OS developers allows clients to bring their computer dreams to life.

Here’s some projects that our expert Mac OS Developers made real:

  • Integrating a custom software stack with assembly language and languages such as C and C++
  • Providing support for failed Macbook Pro start-ups lacking storage
  • Creating the ability to add folder files into a text document
  • Developing an open-source NSLogger logging system for iOS/MacOS
  • Installing docker based software from Github for Mac OS Intel users
  • Combining Swift with Xcode and SwiftUI to create an app for a MacOS
  • Perfecting shell related experience on both Linux and Mac OS platforms as well as PostgreSQL & Python proficiency
  • Designing Amazon Web Services elements such as CloudFormation Template & CloudWatch Alarms with programming language such as Python in two days or less
  • Crafting simple note taking apps using the swift language on a macOS

At Freelancer, we provide the expertise of our talented team of professional developers who specialize in creating the best unique experiences possible using Mac OS. Projects range from creating efficient software stacks, delivering robust troubleshooting services, constructing logging systems and integrating them into existing frameworks, creating specialized apps with Swift, and perfecting Amazon Web Service elements.

Whether you're looking for personal or commercial purposes, our team of professionals have the know-how to create the perfect experiences with Mac OS. Take your project from concept to reality and post your own job description on our website to hire one of Mac OS Developers today.

From 44,738 reviews, clients rate our Mac OS Developers 4.83 out of 5 stars.
Hire Mac OS Developers

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    13 jobs found

    I am looking for a Senior macOS Code Signing & Notarization expert to diagnose and fix a persistent "Status 7000: Team not configured" error. THE CRITICAL CHALLENGE: Most developers will suggest using the App Store Connect API Key to fix this. I HAVE ALREADY TRIED THIS, AND IT FAILED. I need an expert who understands why xcrun notarytool returns Error 7000 even when using a valid API Key and fully paid accounts. The Context: Accounts: I have TWO Apple Developer Accounts (Personal and LLC). Both are fully PAID and all agreements are ACTIVE/GREEN in App Store Connect. The Target: I am currently testing with a simple "" (dummy file) to isolate the issue from my Electron source code. The Result: Both accounts fail with statusCode: 7000. The Technical Evidence (Log...

    $51 / hr Average bid
    $51 / hr Avg Bid
    36 bids

    The plugin compiles perfectly on non-Windows systems, but the current build scripts and settings break under Windows 10/11. I need the configuration rewritten so the entire project builds cleanly in a standard Windows environment—whether that means CMake, Visual Studio solutions, or another toolchain you recommend. Key objectives • Update or replace existing build/configuration files so the codebase compiles without errors on Windows. • Keep all existing functionality intact; no behavioural changes. • Provide a short README that explains the exact steps required to reproduce a successful Windows build from a fresh clone. I will test by cloning the repository on a clean Windows machine, following your README, and confirming it builds and runs as it does on L...

    $27 Average bid
    $27 Avg Bid
    15 bids

    I’m building an iOS app and need short, recurring remote sessions on real Apple hardware to compile, sign and push new builds to TestFlight / the App Store, then verify behaviour—especially VPN and network flows—on a physical device. Here’s what I’m after: • A Mac with Xcode already set up. • A real iPhone tethered to that same Mac so I can install the build directly. • Remote control via Chrome Remote Desktop (that’s my preferred tool, although I can adapt to AnyDesk if you already have it configured). • Solid internet and the ability to jump on quickly when I have a new build ready—sessions will be brief but may repeat often. When you reply, please include: 1. macOS version running on your Mac. 2. Exact iPhone mo...

    $141 Average bid
    $141 Avg Bid
    23 bids

    The plugin compiles perfectly on non-Windows systems, but the current build scripts and settings break under Windows 10/11. I need the configuration rewritten so the entire project builds cleanly in a standard Windows environment—whether that means CMake, Visual Studio solutions, or another toolchain you recommend. Key objectives • Update or replace existing build/configuration files so the codebase compiles without errors on Windows. • Keep all existing functionality intact; no behavioural changes. • Provide a short README that explains the exact steps required to reproduce a successful Windows build from a fresh clone. I will test by cloning the repository on a clean Windows machine, following your README, and confirming it builds and runs as it does on L...

    $25 Average bid
    $25 Avg Bid
    13 bids

    The plugin compiles perfectly on non-Windows systems, but the current build scripts and settings break under Windows 10/11. I need the configuration rewritten so the entire project builds cleanly in a standard Windows environment—whether that means CMake, Visual Studio solutions, or another toolchain you recommend. Key objectives • Update or replace existing build/configuration files so the codebase compiles without errors on Windows. • Keep all existing functionality intact; no behavioural changes. • Provide a short README that explains the exact steps required to reproduce a successful Windows build from a fresh clone. I will test by cloning the repository on a clean Windows machine, following your README, and confirming it builds and runs as it does on L...

    $14 Average bid
    $14 Avg Bid
    8 bids

    The plugin compiles perfectly on non-Windows systems, but the current build scripts and settings break under Windows 10/11. I need the configuration rewritten so the entire project builds cleanly in a standard Windows environment—whether that means CMake, Visual Studio solutions, or another toolchain you recommend. Key objectives • Update or replace existing build/configuration files so the codebase compiles without errors on Windows. • Keep all existing functionality intact; no behavioural changes. • Provide a short README that explains the exact steps required to reproduce a successful Windows build from a fresh clone. I will test by cloning the repository on a clean Windows machine, following your README, and confirming it builds and runs as it does on L...

    $43 Average bid
    $43 Avg Bid
    19 bids

    I rely on Amazon’s internal shift-picking portal and I’m tired of hammering the refresh key to grab the best slots. I’d like a small Python utility that runs natively on macOS, logs in with my credentials, watches the schedule grid around the clock, and automatically claims shifts the moment they appear. Core functions • Automated shift selection – the script should monitor chosen warehouses, dates, and hours, react in real time, and confirm the pick. • Push alerts – once a shift is secured or altered I need an immediate app notification that lands on my phone; email and SMS are not required right now. • Change tracking – every accepted, dropped, or swapped shift should be logged so I can review a history of what happened and when. ...

    $771 Average bid
    $771 Avg Bid
    71 bids

    I am looking for a macOS Code Signing & Notarization expert to fix a persistent "Status 7000" error on my local machine. The Situation: I have an Electron application, but I am testing with a simple "Hello World" zip to isolate the issue. I have two Apple Developer Accounts (one Personal, one LLC). CRITICAL: Both accounts are fully PAID (Apple Developer Program) and all agreements (Free/Paid Apps) are ACTIVE/GREEN in App Store Connect. The error persists on BOTH accounts when using the standard password/keychain authentication. The Evidence (Fails on BOTH accounts): I tried notarizing with both my Personal and LLC accounts. Both return the same blocking error: Attempt 1: Personal Account (Standard Auth) log admin@Admins-iMac % xcrun notarytool log [JOB_ID_RE...

    $35 / hr Average bid
    $35 / hr Avg Bid
    50 bids

    am looking for a senior macOS developer with deep experience in Apple’s Notarization and Code Signing process. We have been struggling for a month to notarize our desktop application (Kloow) and need a definitive solution today. Current Situation: Account Status: Apple Developer LLC account is 100% active. All agreements (Paid/Free), Banking, Tax (W-9), and DSA Compliance (Trader status) are in "Active" status. The Problem: Recent notarization attempts via notarytool returned StatusCode 7000 ("Team is not yet configured for notarization"). Goal: We need an expert to audit our build process, ensure the Hardened Runtime is correctly configured, sign the binaries with the correct Developer ID Application certificate, and successfully notarize the app. Scope of W...

    $35 / hr Average bid
    $35 / hr Avg Bid
    76 bids

    I have a legacy Adobe AIR / ActionScript 3 desktop app (multi-game n-back training). I need it upgraded so it runs on modern operating systems. Goal Update the project to a current AIR SDK (HARMAN AIR SDK) and produce working desktop builds for: macOS Catalina+ Windows 10/11 macOS compatibility note: I need Catalina+ support on Intel Macs. For Apple Silicon (M1/M2/M3), it is acceptable if the app runs via Rosetta 2 (Intel build). A fully native Apple Silicon / Universal build is a bonus if feasible within budget, but not required. Current project Source code is available (AS3 project file: HighIQPro Asyn 2G+.as3proj, with src/, lib/, bin/, etc.). No UI/feature changes required. This is an SDK/build/packaging upgrade. Deliverables Updated project that compiles against a current AIR SDK...

    $1528 Average bid
    $1528 Avg Bid
    13 bids

    I'm seeking a MacOS developer to create a utility application aimed at system optimization. The key focus of the application will be improving the performance and efficiency of Mac systems. Ideal candidates for this project should have: - Extensive experience in MacOS application development - Strong understanding of system optimization techniques - Previous work with utility applications - Excellent problem-solving skills - Ability to work independently and meet deadlines. Please apply if you are able to deliver a high-quality, efficient product.

    $1385 Average bid
    $1385 Avg Bid
    61 bids
    Shopify Custom CSV Importer
    6 days left
    Verified

    Devo caricare su Shopify un grande catalogo di prodotti fisici suddiviso in più file CSV personalizzati. Cerco quindi una soluzione – script, app privata o flusso automatizzato – che mi permetta di: • leggere simultaneamente vari CSV non standard; • mappare correttamente ogni colonna con lo schema Shopify (titolo, descrizione del prodotto, immagini in bulk, prezzi, quantità e qualsiasi campo aggiuntivo presente); • gestire varianti, inventario e immagini da URL o percorso locale; • segnalare errori di formattazione o dati mancanti prima dell’importazione definitiva. Fornirò esempi di file e un account di sviluppo. Il risultato finale deve includere: 1. Codice sorgente completo o app installabile in uno store di prova. 2. Document...

    $174 Average bid
    $174 Avg Bid
    69 bids

    Datos del proyecto $30,00 – 80,00 USD 1. Título del Proyecto Desarrollo de Dashboard Ejecutivo y Automatizado de Arquetipos de Marca en Excel (Garantía de Compatibilidad con macOS/iOS) 2. Descripción General del Proyecto Necesito transformar mi actual matriz de arquetipos de marca basada en Excel en un dashboard dinámico, visualmente profesional y completamente funcional en Microsoft Excel para Mac. El objetivo es crear una herramienta de control que tome los datos de una encuesta externa, procese las fórmulas existentes y presente los resultados de los 12 arquetipos de marca de forma gráfica, profesional y fácil de interpretar, mostrando dos niveles de clasificación. El entregable final debe ser un archivo de Excel avanzado ...

    $127 Average bid
    $127 Avg Bid
    15 bids

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