Mobile App Developer at Koins Bank - Lagos | HeadHunter.ng
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Mobile App Developer
Koins BankFrom company careers page
Lagos · Contract · Posted 2 Oct 2026
At a Glance
Koins Bank is hiring a Mobile App Developer to design, build, and maintain responsive cross-platform apps for iOS and Android — translating UI/UX designs into code, integrating REST/GraphQL APIs and third-party SDKs (payments, push, analytics), optimizing performance, and managing App Store/Google Play releases. Contract, fully remote role.
Requirements
Design, develop, and maintain responsive cross-platform mobile applications for iOS and Android
Translate UI/UX designs and wireframes into high-quality, reusable, and scalable mobile code
Integrate mobile apps with REST/GraphQL APIs, backend services, and third-party SDKs (payment, push notification, analytics)
Optimize applications for performance, stability, security, accessibility, and compatibility across devices and OS versions
Conduct unit, integration, and end-to-end testing
Identify, troubleshoot, and resolve bugs, crashes, performance issues, and UI defects
Manage application builds, testing, deployment, and releases to the Apple App Store and Google Play Store
Collaborate with Product, UI/UX, Backend, and other technology teams from development through deployment
Participate in code reviews and adhere to coding standards and best practices
Maintain clear and up-to-date technical documentation
Monitor application performance and user feedback, implementing improvements
Contribute to sprint planning and deliver features within agreed timelines and quality standards
About the Job
We are seeking a skilled Mobile Application Developer to design, develop, test, and maintain high-quality, responsive mobile applications across iOS and Android platforms. The role involves translating UI/UX designs into functional applications, integrating backend services and third-party solutions, optimizing application performance, and managing app releases. The successful candidate will work closely with Product, Design, Backend, and other technology teams to deliver reliable and user-friendly mobile experiences.
Requirements
Design, develop, and maintain responsive cross-platform mobile applications for iOS and Android.
Translate UI/UX designs and wireframes into high-quality, reusable, and scalable mobile code.
Integrate mobile applications with REST/GraphQL APIs, backend services, and third-party SDKs, including payment, push notification, and analytics solutions.
Optimize applications for performance, stability, security, accessibility, and compatibility across devices and operating system versions.
Conduct unit, integration, and end-to-end testing to ensure application quality and reliability.
Identify, troubleshoot, and resolve bugs, crashes, performance issues, and UI defects.
Manage application builds, testing, deployment, and releases to the Apple App Store and Google Play Store.
Collaborate with Product, UI/UX, Backend, and other technology teams to deliver features from development through deployment.
Participate in code reviews and ensure adherence to coding standards, best practices, and development guidelines.
Maintain clear and up-to-date technical documentation for application features, components, and processes.
Monitor application performance and user feedback, and implement improvements to enhance user experience and app stability.
Contribute to sprint planning and ensure assigned features are delivered within agreed timelines and quality standards.
Benefits
Contract role
Full remote
Listing gathered from the employer's careers page by freehire.me.