Senior Specialist Mobile Developer

Overview Senior Specialist Mobile Developer – DLK Group, Johannesburg, South Africa. Full time. Posted on 19 / 08 /. Job Information: Date Opened : 19 / 08 / Job Type : Full time Industry : IT Services Work Experience : 5-7 years Salary : Market Related City : Johannesburg Province : Gauteng Country : South Africa Responsibilities Develop mobile applications utilizing Microsoft Xamarin / .NET MAUI mobile development toolset with React Native knowledge Backend: Web API service-oriented application running on .NET framework utilizing C# API services integrate with MS SQL database as the data store Links to numerous API services to integrate into a broad enterprise architecture Extensive experience with Microsoft mobile applications written in Xamarin and .NET MAUI Proven track record of delivering mobile application solutions Experience with app deployments in all three mobile application stores: Apple iOS App Store, Android, Huawei Work includes support and refactoring of existing code Support existing mobile applications Understand existing product and domain elements and work with business analysts to refine and implement requirement changes Refactor and improve code to keep the product maintainable and adaptable Evaluate and improve application performance and high availability features Create unit and integrated system tests to validate functionality Create and execute functional test scenarios (dev testing) Write technical documentation explaining system components and usage Perform root cause analysis on bugs and fix issues in integrated systems Build and deploy mobile applications via DevOps processes to app stores Collaborate effectively in a team environment, improving development processes and standards Minimum Requirements Relevant tertiary qualification in IT or Computer / Engineering Sciences, OR 8+ years continuous development experience in mobile app development with multiple go-live events Strong knowledge of Microsoft Xamarin and conversion from Xamarin to .NET MAUI Experience in .NET MAUI framework and development up to .NET 95 NET 95+ years relevant experience as a senior mobile developer in a multi-tiered . Experience with API service integration in mobile apps Experience coding functionality for mobile device components (camera, geolocation, etc.) Experience in web browser scripting languages preferred (JavaScript / TypeScript, Angular, ASP, HTML5, React) Knowledge of REST frameworks involving JSON and XML Working knowledge of mobile app security vulnerabilities and prevention techniques Ability to work in a team and translate use cases / user stories into user‑friendly applications Strong understanding of SDLC processes (Agile & Waterfall), tools, and techniques Technologies & Tools Xamarin, Xamarin Forms, XAM.NET MAUI, C# and .NET framework, Mobile store deployments (iOS, Android, Huawei), Integration (Web / RESTful services), XML, JSON, namespace management, SQL (MS SQL onwards), SoapUI / Postman, React Native: JavaScript, TypeScript, UI design (flexbox), Node & npm, Azure DevOps: repo management, CI pipelines, release, Strong knowledge of OOP principles and design pattern, IDE: Visual Studio, VS Code, REST / SOAP services, Microsoft Application Center, .NET 4.7.2, jQuery, Web API, WCF, Unity, Bootstrap Personal Profile Self‑starter, self‑motivated, and team player. Experience managing a development team. Excellent communication & interpersonal skills. Strong attention to detail. Works well under pressure and meets deadlines. Ability to perform root cause analysis under operational pressure. Lifelong learner, adaptable to new technologies. #J-18808-Ljbffr