Upwork home
Sign up
Secondary

Hire the best Objective-C Developers in Beijing, CN

Check out Objective-C Developers in Beijing, CN with the skills you need for your next job.
Hire freelancers
  • $55 hourly
    • 5.0/5
    • (8 jobs)
    Over 28 years of programming experience with 21 years of business development. The 64-bit era: iOS / Objective-C & Swift & C++ / Xcode(Cocoa & CocoaTouch framework) Linux(CentOS & Ubuntu) + Apache + MySQL + PHP full-stack design/development. Major iOS app(with server) design/development. The 32-bit era: MacOS 9 & MacOS X / C++ / CodeWarrior(Carbon framework) & Xcode(Carbon framework) Red Hat & Ubuntu / C++ / vim & gcc & gdb Windows XP & Windows 7 / C++ / C++ Builder 6.0(VLC framework) & Visual C++ 6.0(MFC framework) Major Cross-Platform framework/SDK, MacOS X app design/development. The 16-bit era: MS DOS/Turbo C 2.0
    Featured Skill Objective-C
    C++
    Apple Xcode
    Network Security
    iOS Development
    MySQL
    Swift
    System Administration
  • $30 hourly
    • 5.0/5
    • (15 jobs)
    I’ve contributed to the official Facebook React Native library by submitting several PRs. Furthermore, I’ve earned significant income completing bounty tasks on GitHub through Upwork. You can explore my contributions and work on my GitHub profile: github.com/hellohublot My expertise is ensuring your app runs smoothly without lag. With my proficiency in low-level native development, you can rest assured that your application won’t face performance issues that might require a complete rebuild. I am deeply focused on performance and security, which enables me to create high-performance mobile apps using React Native, Swift, or Objective-C. Additionally, I have experience with tools like Frida for reverse engineering, allowing me to extract any data you need.
    Featured Skill Objective-C
    Spring Boot
    Next.js
    Performance Optimization
    Reverse Engineering
    NestJS
    React
    Swift
    Flutter
    TypeScript
    React Native
    iOS
    Apache Cordova
    Python
    GraphQL
  • $18 hourly
    • 5.0/5
    • (2 jobs)
    I am a senior software engineer with 12 years of experience, specializing in audio and video technologies as well as desktop application development (Windows/macOS). I have worked at leading tech companies such as Alibaba and Sina Weibo, where I focused on solving complex audio/video processing challenges. I have extensive experience in video playback optimization, streaming performance tuning, and codec processing, contributing to large-scale platforms with over 100 million DAU. My expertise includes FFmpeg, GStreamer, OBS Studio, and various streaming protocols, allowing me to build high-performance media applications. Beyond audio/video, I have also led the development of multiple large-scale desktop applications. With deep knowledge of Qt and C++, I specialize in building cross-platform, high-performance Windows/macOS clients. My work ensures applications are efficient, scalable, and optimized for performance, meeting both technical and business requirements. Why Choose Me as Your Developer? - Audio/Video Expertise: Specializing in FFmpeg, GStreamer, OBS Studio, EXOPlayer, IJKPlayer, with experience in customizing and optimizing open-source media frameworks. - Codec and Streaming Protocols: Proficient in H.264/H.265, AAC, MP3, AV1, VP9, and streaming protocols like HLS, FLV, DASH, MP4, ensuring smooth playback and efficient streaming solutions. - Large-Scale Desktop Application Development: Led the development of multiple large Windows/macOS applications, focusing on performance, stability, and scalability. - Qt and C++ Expert: Extensive experience in cross-platform desktop software development, delivering high-quality, efficient, and user-friendly applications. - Multi-Platform Development: Ensuring seamless application performance across Windows, macOS, iOS, and Android. - Performance and Optimization: Proven ability to solve complex technical challenges, optimize system performance, and enhance stability. My Services - Audio/Video Application Development: Creating advanced video players, streaming applications, and media processing tools. - Streaming Performance Optimization: Improving video playback quality, reducing latency, and ensuring smooth streaming experiences. - Desktop Application Development: Building high-performance, cross-platform Windows/macOS client applications using Qt and C++. - Custom Media Library Integration: Integrating and optimizing FFmpeg, GStreamer, and other media frameworks to meet specific project requirements. - Technical Consulting: Providing expert insights on desktop software architecture, audio/video processing, and performance tuning.
    Featured Skill Objective-C
    iOS Development
    Qt Framework
    GStreamer
    FFmpeg
    Python
    C
    C++
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    **Architecture & Design Patterns:** 1. Proficient in MVC, MVP, and MVVM architectural patterns. 2. Skilled in design patterns including Notification, KVO (Key-Value Observing), KVC (Key-Value Coding), Singleton, Factory, and Abstract Class. **Objective-C & Swift:** 1. Proficient in Objective-C memory management (MRC/ARC). 2. Deep understanding of Runloop mechanisms. 3. Strong knowledge of Runtime message forwarding mechanisms. 4. Expertise in multithreaded programming with GCD, NSThread, and NSOperationQueue. Familiar with synchronization techniques (e.g., mutex locks, spin locks). 5. Proficient in Swift development, including enums with associated values, structs, classes, and protocol-oriented programming. 6. Experienced with RxSwift for reactive programming. 7. Skilled in JavaScriptCore for native-JS communication. **Flutter:** 1. 3 years of hands-on experience in Flutter cross-platform development. 2. Proficient in Dart language and its memory management. 3. Expertise in asynchronous programming with Future, Stream, and Isolate. 4. Deep understanding of widget tree rendering principles and refresh mechanisms. 5. Skilled in component communication (e.g., notifications, state management). 6. Experienced with Fish-Redux framework. **Python:** 1. Familiar with Python syntax and fundamentals. 2. Proficient in AI frameworks: LangChain, AutoGen, LlamaIndex, FastAPI, Hugging Face. 3. Knowledgeable in prompt optimization (e.g., for knowledge bases and tool-based workflows). 4. Experienced in deploying LLMs (e.g., ChatGPT, DeepSeek, Qwen). 5. Skilled in developing agent applications on the Coze platform. **Tools:** 1. Proficient in Git version control. 2. Experienced with CocoaPods dependency management. 3. Familiar with Gerrit + Jenkins for automated CI/CD pipelines.
    Featured Skill Objective-C
    Swift
    Flutter
    NFT
    App Development
    Mobile App
    Blockchain Architecture
    iOS Development
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    我主要寻求一份 iOS 或 macOS 开发相关、长期稳定的远程工作 - 我有 12 年的 iOS 开发经验、4 年的服务端开发经验，具备全栈视野 - 在知名公司滴滴、知乎核心团队工作过 7 年，具备复杂业务的方案设计和良好的协同能力 - 工作经历涵盖了从创业项目到全民级 APP 的每个阶段，帮助您的业务长期稳步增长 - 优秀的组件设计能力，兼顾实用、易用、通用，开源项目 6.5k+ 的 Star 可以为我证明：github.com/wxxsw （学习英语中，但暂时不具备纯英语交流的能力）如果觉得可以，欢迎随时与我联系
    Featured Skill Objective-C
    iOS
    Swift
  • $60 hourly
    • 0.0/5
    • (0 jobs)
    I’m a developer experienced in building iOS App. Main Tools:Objective-C and Typescript，also knows C# and Swift
    Featured Skill Objective-C
    Swift
    C++
    TypeScript
  • $210 hourly
    • 0.0/5
    • (0 jobs)
    Soft Engineer. Base in china. - 8 years experience of iOS development - 2 years experience of a/v player sdk development
    Featured Skill Objective-C
    Android
    C
    Swift
    TypeScript
    C++
    Media Player
    iOS
  • $20 hourly
    • 0.0/5
    • (1 job)
    As an experienced Flutter mobile app developer, my focus is on delivering high-quality, buyer-demanded apps within a specified timeframe. I prioritize creating strategic and visually appealing UI designs that align with user and business goals. I possess exceptional creativity and problem-solving skills that enable me to tackle complex Android app development challenges. I'm committed to creating high-quality cross-platform Flutter apps. My specialty is mobile app development, specifically Dart and Flutter frameworks. I'm committed to helping customers turn their ideas into successful product launches. Skill: - Flutter expertise for native Android, iOS, and web development. - In-depth knowledge of the Dart language and a strong understanding of the life cycle of Flutter. - Experience with state management frameworks such as Provider, GetX, FlutterRedux, etc. - Familiarity with push notifications. - Experience writing custom components, such as reusing similar UI and functional code. - Experience in writing custom Dart code plug-ins, such as extracting the same business logic and encapsulating it into plug-ins. - Experience writing custom native side plugins, such as iOS (Swift or Objective-c) and Android (Java or Kotlin). - Knowledge of Firebase, MySQL, and SQLite. - Proficiency in iOS app store deployment and updates. - Familiarity with RESTful APIs to connect Flutter applications to backend services. - Familiar with and apply agile development to manage the progress of project development. - Experience in writing automated test code, and unit test code. - Proficient in version control with Github and Gitlab. - Integrate with various APIs and third-party services (e.g., Firebase, Analytics, Google Map). Why choose me over other freelancers? ✅ Exceed customer expectations. ✅ Responsiveness: I prioritize open and responsive communication with clients. ✅ Resilience: I have the determination and resilience to overcome challenges. ✅ Friendliness: I prioritize maintaining a positive and collaborative working relationship. I am happy to work with you and discuss how we can meet your business needs. Please get in touch with me to explore our potential collaboration.
    Featured Skill Objective-C
    Swift
    Dart
    Firebase
    Mobile App Development
    Android
    iOS
    Flutter
  • $33 hourly
    • 0.0/5
    • (0 jobs)
    Hello, Thanks for visiting my profile page. I have been developed many mobile apps for 5 years. My main skills are iOS app/game development and Android app/game development. I already developed many mobile apps with social networks(such as Facebook, Twitter, LinkedIn and so on), Restful JSON based Web Service, database management(such as sqlite), google-map, finess app, audio/video streaming services. And I have considerable expertise in VOIP apps development. I have developed many VOIP apps so far. The Media5-fone VOIP SIP app is my example project that I developed from scratch. Also I am very famiiliar with Mobile Games developement. I have integrated the games with chartboost, revmob, applovin, admob, iAd, twitter,facebook, linkedin, flurry, Pushwoosh, tapjoy and so on.
    Featured Skill Objective-C
    VoIP Software
    iPad App Development
    iOS Development
    Mobile App Development
    Android App Development
    Java
    C
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Objective-C Developer near Beijing, on Upwork?

You can hire a Objective-C Developer near Beijing, on Upwork in four simple steps:

  • Create a job post tailored to your Objective-C Developer project scope. We’ll walk you through the process step by step.
  • Browse top Objective-C Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Objective-C Developer profiles and interview.
  • Hire the right Objective-C Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Objective-C Developer?

Rates charged by Objective-C Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Objective-C Developer near Beijing, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Objective-C Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Objective-C Developer team you need to succeed.

Can I hire a Objective-C Developer near Beijing, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Objective-C Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.