Dan是一名专注于区块链技术应用的软件架构师和技术专家. He has years of experience providing professional consulting services to clients ranging from startups to global corporations. 他擅长将严格的测试和防弹代码引入棘手的工程挑战. 他在人工智能的许多方面都有深厚的专业知识, blockchain, machine learning, and automation.
理查德曾担任过从技术支持到联合创始人的各种职务. Over his career, Richard has accumulated both a deep level of technical understanding as well as a broad comprehension of the other requisite elements of building and growing a successful business. His breadth of experience and technical expertise make him uniquely suited to solve business problems with technology.
Branislav is a software engineer with five years of experience in Android development on various projects for companies like Sony Mobile, Bottle Rocket Studios, and MindGeek. Extensive experience covers a variety of different project set-ups from building apps from start to finish to the development and continuous delivery for large-scale, long-term projects. Being a moderate perfectionist, he's a valuable contributor to any development team.
Dmitry is an Android developer with more than six years of experience who communicates well and always tries to find the best tech that suits the project. 他在Git、Lua (Corona SDK)、RxJava和Dagger方面经验丰富. 他与一个庞大的团队合作开发了安装量超过1000万的Yandex浏览器. He's also developed his own projects—a game with 250,000 installations and published several other apps.
Ivan is a professional with more than 10 years of experience in Android development. His most recent role included sole contribution, 在Truecaller的17人敏捷跨职能团队中担任团队领导和工程管理, 为超过2.5亿的月活跃用户提供惊人的功能. 作为一个充满激情的人, he values openness and simplicity as foundations for creating a successful story.
Building a cross-platform app to be used worldwide
What our clients think
Clients Rate Android开发者总数4.4 / 5.0on average across 1,230 reviews as of Nov 8, 2023
没有Toptal就不会有Tripcents. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. 其速度、知识、专业知识和灵活性是首屈一指的. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. 我们将继续使用Toptal. 作为一家初创公司，它们是我们的秘密武器.
Brantley Pace, CEO & Co-Founder
I am more than pleased with our experience with Toptal. 和我一起工作的专业人员在几个小时内就和我通了电话. I knew after discussing my project with him that he was the candidate I wanted. 我立即雇用了他，他没有浪费时间就完成了我的项目, 甚至通过添加一些很棒的设计元素来增加我们的整体外观.
Paul Fenley, Director
K Dunn & Associates
The developers I was paired with were incredible -- smart, driven, and responsive. 过去很难找到高质量的工程师和顾问. Now it isn't.
Ryan Rockefeller, CEO
Toptal understood our project needs immediately. 我们遇到了一位来自阿根廷的杰出自由职业者, from Day 1, 沉浸在我们的行业中, 与我们的团队无缝融合, understood our vision, 并产生了一流的结果. Toptal makes connecting with superior developers and programmers very easy.
Jason Kulik, Co-Founder
作为一家资源有限的小公司，我们不能犯代价高昂的错误. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. 这是一次很棒的经历，我们会马上再来一次.
We used Toptal to hire a developer with extensive Amazon Web Services experience. 我们面试了四位候选人，其中一位非常符合我们的要求. 这个过程迅速而有效.
Abner Guzmán Rivera, CTO and Chief Scientist
Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.
Dennis Baldwin, Chief Technologist and Co-Founder
和Marcin一起工作是一种乐趣. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it.
André Fischer, CTO
我们需要一位能立即开始我们项目的专业工程师. Simanas exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient. Toptal is now the first place we look for expert-level help.
我们与Toptal合作非常愉快. 他们为我们的应用程序找到了完美的开发人员，让整个过程变得非常简单. It was also easy to extend beyond the initial time frame, 我们可以在整个项目中保持同一个承包商. 我们强烈推荐Toptal，因为它可以快速无缝地找到高素质的人才.
Ryan Morrissey, CTO
我对Toptal印象深刻. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.
Pietro Casoar, CEO
Ronin Play Pty Ltd
Working with Toptal has been a great experience. Prior to using them, 我花了相当多的时间面试其他自由职业者，但没有找到我需要的. 在与Toptal合作后，他们在几天内就为我找到了合适的开发者. 与我一起工作的开发人员不仅提供高质量的代码, 但他也提出了一些我没有想到的建议. It's clear to me that Amaury knows what he is doing. Highly recommended!
George Cheng, CEO
As a Toptal qualified front-end developer, I also run my own consulting practice. 当客户来找我帮忙填补他们团队中的关键角色时, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal是我在近5年的专业在线工作中发现的性价比最高的网站.
Ethan Brooks, CTO
Langlotz Patent & Trademark Works, Inc.
In Higgle's early days, 我们需要一流的开发者, at affordable rates, in a timely fashion. Toptal delivered!
Toptal为快速发展和规模化的企业提供不妥协的解决方案. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.
How to Hire Android Developers through Toptal
A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
Within days, we'll introduce you to the right Android developer for your project. 平均匹配时间在24小时以下.
Work with your new Android developer for a trial period (pay only if satisfied), 在订婚前确保他们是合适的人选.
How much does it cost to hire an Android developer?
The cost of hiring an Android developer is primarily influenced by the standard factors that impact most roles: the mobile app developer’s experience, 项目的复杂性和持续时间, 以及区域市场利率. Another factor that will impact the cost is whether your mobile app developer is a direct hire or an Android development freelancer. As a point of reference, Glassdoor lists the average total pay for an Android developer in the United States to be $98,250 as of August 14, 2023.
总费用还取决于对其他团队成员(如UI/UX设计师)的需求, 或iOS或后端开发者), 第三方服务(如云托管)的潜在成本, 采用跨平台工具方法，允许在Android和iOS上构建单个代码. Developing and maintaining a single codebase can dramatically cut your expenses but comes at the cost of less flexibility and depth of app features and scalability.
Define your project scope and business requirements.
确定团队的技能差距. Consider whether you need support from junior, mid-level, or senior engineers.
Identify the ideal Android developer for you.
How high is the demand for Android developers?
Android developer demand is at an all-time high. The global demand for this highly technical role has soared with the proliferation of Android devices and the growth of the mobile app industry. The employment of Android developers is predicted to rise by 21% from 2018 to 2028.
Can you hire Android developers on an hourly basis or for project-based tasks?
You can hire an Android developer on an hourly basis and for project-based tasks. 无论你雇佣的是全职专家还是兼职专家, 随着需求的发展，您可以控制和灵活地扩大或缩小团队规模. 我们的Android开发人员可以完全整合到您现有的团队中，以获得无缝的工作体验.
Toptal developers are outstanding at native Android development using Java, Kotlin, and a variety of specialized tools that can be integrated into mobile applications. Toptal can also provide access to top-quality mobile developers who can code Android applications using cross-platform frameworks such as Flutter, Ionic, Xamarin, or React Native 使用一个源代码创建两个相同的移动应用程序, packaging one app for iOS and the other for Android.
Amar is a veteran Android developer who has worked with companies such as Reddit, Goldman Sachs, Mercedes Benz, and Volvo. At Reddit, 他为官方安卓应用程序做出了贡献, 下载量超过1亿的游戏, and at Volvo, 他领导的团队构建了消费者应用程序的分析服务, 管理5000万个日常事件. 他还担任了五年多的萨拉热窝社区总领袖, Bosnia and Herzegovina.
Android App Developer Demand Is at an All-time High
The global demand for Android programmers has soared with the proliferation of Android mobile devices and the growth of the mobile app industry. As of 2023, 全球超过30亿台活跃的Android设备证实了该平台的巨大规模和影响力. 结果是有 nine 为每个在美国工作的Android开发者发布Android应用开发者的欧博体育app下载. Furthermore, Android开发是IT领域发展最快的部分, 在美国，Android开发者的数量预计将上升到 ~322,000 in 2023, from ~184,000 in 2022.
然而，对Android应用程序程序员的高需求只是硬币的一面. Companies looking to hire Android developers face a unique set of challenges: The field of Android mobile development is complex and ever-evolving, 这使得找到一个不仅拥有必要技术技能的合适人选变得非常困难, but also stays abreast of the latest industry trends, tools, and best practices. 在这个充满活力和快节奏的领域, 用一刀切的方法招聘专门的Android开发人员是行不通的.
This hiring guide explores the specific attributes that set top-notch Android developers apart from those who are merely average. You will learn how to identify the candidate who is ideal for your specific needs. We also provide tips for writing effective job posts and share strategies for navigating the interview and assessment processes effectively.
Android developers are instrumental in creating the digital experiences that billions of people interact with on their smartphones, building and maintaining applications for communication, entertainment, learning, and planning activities.
一个高质量的Android开发者的核心技能是对Android架构组件的深刻理解, one of which is the concept of the Android application lifecycle: essentially, the journey an app takes from the moment it’s opened to when it’s closed.
This is important because Android users are accustomed to keeping several apps open simultaneously and seamlessly switching from one to another. By mastering the app and activity lifecycle concepts, a proficient Android developer ensures this multitasking experience remains smooth, efficient, and performant.
Performance efficiency and battery optimization skills
一个优秀的Android开发人员认识到，虽然便携式移动设备是强大的, they do not operate with unlimited resources. 以电池寿命和设备性能等因素为指导, 高质量的Android开发者确保应用程序不会因为快速耗尽设备电量而吓跑用户. Candidates should apply strategies 确保他们创建的应用程序不仅功能齐全而且用户友好, 但考虑到设备的局限性，也很保守.
以确保最小的电池使用量, look for engineers who write clean and efficient code, continually monitor and optimize their code’s performance, and follow best practices for background tasks, syncs, and updates. 高质量的Android开发人员精通使用工具，如 Profiler (集成到Android Studio)来识别性能瓶颈, memory leaks, and CPU-intensive processes that may lead to excessive battery consumption. 专家监控网络流量, disk operations, 以及对外交流, like Bluetooth or GPS.
Experience with modern architectural patterns
创建可伸缩和可维护的代码, 一个优秀的Android开发者必须精通现代架构模式，例如 Model-View-ViewModel (MVVM) or Model-View-Intent (MVI) and clean architecture. 理解和实现体系结构模式可以更有效地对根本原因进行分析和补救, 更快地融入新团队成员, and an overall increase in code-writing productivity.
Android developers also grasp and effectively employ the principles of both object-oriented and functional programming. Kotlin—the official language of Android development—supports both paradigms. 面向对象编程 enables developers to build modular code, which can simplify a complex application. Functional programming, on the other hand, emphasizes immutability and first-class functions, 哪个更安全, more predictable, and easier-to-test code. 熟练的Android开发人员不仅了解这些概念, but also knows when to use each paradigm for optimal efficiency and effectiveness.
An understanding of the Android system’s diversity
The diverse Android spectrum—from high-end smartphones to budget mobile devices—offers a colorful range of screen sizes, hardware capabilities, 操作系统版本. 优秀的Android开发者, therefore, 理解适应性和灵活的代码确保所有设备的最佳性能和可用性. This, in turn, leads to greater user satisfaction and increased market penetration.
The technology landscape is constantly evolving. As such, a quality Android developer is a proactive learner who is informed and aware of the latest developments in the Android ecosystem, including trends, software, and hardware. 他们很快就采用了新的工具和实践，可以改善他们构建的应用程序的整体用户体验. Android工程师应该熟悉标准库，比如 Hilt (依赖注入), Jetpack Compose (UI), Kotlin
coroutines (数据精简)，以及 Retrofit (API calls)—and actively seek out new libraries to enhance productivity.
Complementary technology skills for Android
The Android platform spans from standard smartphones to smart appliances and cars, 所以雇佣一个具备相应技能的Android开发者来处理你的应用的特定目标. 根据您的项目要求，以下技术可能是相关的:
3D imaging – A strong background in mathematics and geometry goes a long way in the development of a more performant video streaming or augmented reality app.
Automated testing and 持续集成/持续交付(CI/CD) – To ensure that code is bug-free and performs as expected, 高质量的Android开发人员使用以下工具编写自动化测试 Espresso or JUnit. Additionally, 通过应用CI/CD实践, which enable faster, 更高效的Android应用发布, 高质量的Android工程师简化了开发过程.
How can you identify the ideal Android Developer for you?
识别理想的Android开发人员, first you need to identify your specific needs, then align candidates’ expertise and experience with the scope and complexity of your project and business objectives.
理想的Android开发人员将拥有与您的计划类似的过去项目组合. 如果他们将作为一个团队的一部分工作, then the ideal Android developer for you will possess the communication skills that allow them to articulate their ideas and solutions effectively. 他们也可能熟悉你的行业，能够在规定的时间框架和预算内交付.
What Android development expertise level should you target?
在你回答这个问题之前, you need to be clear on what differentiates junior, mid-level, and senior talent:
Android Developer Level
Generally, 初级开发人员比中级或高级开发人员需要更多的指导和支持. They can be successful if you have the resources to provide mentoring and oversight.
A junior developer is a good choice for simpler, purpose-specific projects. For instance, 初级开发人员非常适合构建不需要身份验证的图片库或消息传递应用程序.
中级开发人员可以独立处理更复杂的任务. 他们设置编码最佳实践并解决更复杂的问题. They may have some experience with project management and team collaboration.
A senior developer makes strategic decisions about technology and architecture. 他们通常有助于确定项目的总体方向.
The app is aimed at a modestly sized user pool.
Your team is able to back up the junior developer.
A mid-level or senior developer is more appropriate if:
The app is aimed at a large number of users.
The developer will carry the project independently.
The more experienced the developer, the higher the salary they will command. However, 他们也会为项目带来更多价值，并且比初级开发人员工作更有效率.
The process of hiring an Android developer may differ significantly from hiring an iOS developer due to several factors.
首先，Android和iOS开发者的技能差别很大. Android开发者需要精通 Java and Kotlin, and familiarity with Android Studio, Google’s official development environment. iOS developers are proficient in Swift or Objective-C. 他们也经常使用Xcode进行开发.
Second, design guidelines for each platform vary. Android遵循谷歌的材料设计，而iOS则遵循苹果的人机界面指南. 每个都提供了不同的外观和感觉, 理解这些细微差别对于创造适合各自平台的应用至关重要.
第三，设备约束发挥了作用. Android是开源的，对任何智能设备制造商都是免费的. 正因如此，Android机型种类繁多，质量、功能甚至价格都各不相同. Android开发者需要对这些变化保持灵活和敏感，并适应低端设备, 还有顶级的产品. In contrast, iOS设备仅限于苹果独家生产的几款高质量产品. iOS开发者是了解苹果独特操作系统和硬件规格的专家.
While some developers have overlapping skills in both Android and iOS development, 衡量广度和深度的优势是很重要的. A specialist in one platform can provide deep expertise and nuanced understanding, 从而产生潜在的更高质量的应用. Conversely, a developer proficient in both might be beneficial for simpler projects that aim to launch on both platforms simultaneously. Your decision should align with your project needs and strategic business goals.
Define your project scope and business requirements. 清楚地定义项目的范围. What features do you want your application to have? 它将为用户解决什么问题? 你的目标受众是谁?
确定团队的技能差距. Look at the skills available within your team. 确定缺乏专业知识的领域. Are you missing key Android development skills? For instance, 你可能需要一个有相机经验的Android开发者, video, Snapchat filters, or 3D animations. 你可能需要一个熟悉某个行业的开发人员.
制定问题陈述. 明确你希望开发人员解决的关键问题. 这些可能是技术上的挑战, like optimizing the app for battery efficiency, or business challenges, 比如开发一款吸引特定用户群体的应用.
Set your budget. Determine how much you are willing or able to spend on hiring an Android developer.
The candidate should provide a clear account of a specific project they worked on. They should detail the challenges they faced, the strategies they used to address those challenges, 以及他们努力的结果. 资深Android开发者, 期望在他们使用的工具和技术的描述中有特异性和细节.
寻找一个能够证明你理解Android设备多样性的答案. Candidates should discuss the importance of writing flexible and adaptable code. An app should be tested on multiple devices, screen sizes, and OS versions.
How do you approach writing code that’s efficient in terms of battery usage?