Mobile technology has spread rapidly, and the demand for capable app developers has followed. Applications now drive nearly every user interaction on a smartphone — from communication and productivity to media and commerce. As the market grows, so does the bar for what it takes to succeed as an app developer.
What the Market Is Looking For
A report attributed to Red Hat (cited in the original source via cioreview.com) suggested that roughly half of companies surveyed were actively looking to hire app developers. Of those hiring, approximately 32 percent prioritised front-end skills, 27 percent sought back-end skills, and 17 percent specifically wanted DevOps expertise. Whether or not those exact figures still hold today, the underlying trend is clear: organisations want developers who can contribute across the full stack, not just the user-facing layer.
Companies now expect developers to work across the entire development stack — from UI design principles to backend integrations, data handling, and deployment pipelines. The rise of Platform as a Service (PaaS) and cloud-native infrastructure has shifted how teams think about building and shipping apps. Speed, iteration, and flexibility have become as important as raw feature output.
Core Skills Every App Developer Should Have
1. Cross-Platform Development
The mobile ecosystem is fragmented across Android, iOS, and — to a lesser extent — other platforms. Building exclusively for a single OS restricts your potential audience significantly. Modern developers are expected to have a cross-platform strategy from the outset, whether that means using frameworks like Flutter, React Native, or Kotlin Multiplatform, or architecting shared business logic that can be deployed across targets. Hybrid and cross-platform approaches have moved from niche to mainstream.
2. UI/UX Awareness
A technically sound, bug-free codebase is necessary but not sufficient. The most successful apps invest heavily in user interface and user experience design. Developers don’t need to be professional designers, but they do need enough fluency in UI/UX principles to collaborate effectively with design teams and to make informed decisions when working independently. Understanding platform-specific design guidelines — such as Material Design for Android and Human Interface Guidelines for iOS — is a practical starting point.
3. Localisation and Globalisation
The global reach of mobile means that a successful app rarely stays confined to a single market. Developers should plan for localisation early — ideally at the architecture stage rather than as an afterthought. This involves two distinct concerns:
- Translation: Externalising all user-facing strings so that text can be swapped for the target locale without code changes.
- Tailoring: Adapting content, formats (date, currency, units), and UX patterns to match the expectations and preferences of users in a specific region.
4. Backend Integration and Security
Two of the most critical concerns in mobile development today are security and backend integration. Front-end polish means little if the app leaks user data or fails to communicate reliably with server-side services. Developers benefit from understanding RESTful APIs, authentication protocols (OAuth2, JWT), secure data storage, and the basics of cloud services. Familiarity with PaaS platforms — such as Firebase, AWS Amplify, or Azure App Service — can significantly accelerate backend work.
5. Programming Language Proficiency
At the time of original publication (2017), Java was cited as the most in-demand language for mobile developers. The landscape has shifted since: Kotlin is now Google’s preferred language for Android development, Swift dominates iOS, and JavaScript/TypeScript powers most cross-platform frameworks. The core principle holds — deep proficiency in at least one relevant language, combined with the ability to learn others, remains a foundational requirement for any developer.
6. DevOps and Continuous Delivery Practices
App development does not end at the app store submission. Maintaining a live app requires the ability to iterate quickly, push updates reliably, and monitor performance in production. DevOps practices — CI/CD pipelines, automated testing, crash reporting, and feature flagging — are increasingly expected of developers working in professional environments. Mobile-specific tools like Fastlane, Bitrise, and Firebase App Distribution have made continuous delivery pipelines accessible even to small teams.
The Iteration Mindset
One of the most important shifts in modern app development is the move away from trying to build a perfect, complete product before launch. Shipping an MVP (Minimum Viable Product), gathering real user feedback, and iterating rapidly is now considered best practice. This approach aligns directly with DevOps principles and is increasingly supported by PaaS tooling that reduces deployment friction.
Developers who can work within an iterative cycle — shipping, measuring, learning, and improving — are significantly more valuable than those who optimise only for the initial release.
Staying Relevant in a Fast-Moving Market
The app development landscape does not stand still. New frameworks, platform updates, and user expectations emerge continuously. Developers who invest in staying current — through documentation, community engagement, and hands-on experimentation — will find it easier to adapt when the next shift arrives. The technical skills listed above are entry points, not endpoints.
Original source reference: cioreview.com (2017). The Red Hat report cited in that article has not been independently verified here.