Senior Mobile Engineer
ACE Recruiters Limited
Job Summary
- We are seeking a highly experienced and technically proficient Senior Mobile Engineer to design, develop, test, deploy, and maintain high-quality mobile applications across Android and/or iOS platforms.
- The successful candidate will work closely with Product, UI/UX, Backend, QA, and other engineering teams to translate business and product requirements into scalable, secure, reliable, and user-friendly mobile solutions.
- The ideal candidate should have strong software engineering fundamentals, extensive experience building production-grade mobile applications, and the ability to take ownership of mobile products from architecture and development through deployment, monitoring, optimisation, and continuous improvement.
Key Responsibilities
Mobile Application Development:
- Design, develop, and maintain robust mobile applications for Android and/or iOS.
- Translate product requirements, wireframes, and technical specifications into functional mobile solutions.
- Write clean, maintainable, scalable, and well-documented code.
- Implement responsive and intuitive user interfaces in collaboration with UI/UX designers.
- Develop reusable components and establish coding standards and best practices.
Technical Architecture:
- Participate in defining and implementing mobile application architecture.
- Make appropriate technology and framework recommendations based on product requirements.
- Design solutions that support scalability, reliability, maintainability, and performance.
- Conduct technical reviews and contribute to architectural and engineering decisions.
- Identify technical debt and develop strategies for its resolution.
API & Backend Integration:
- Integrate mobile applications with RESTful APIs, GraphQL, and other backend services.
- Work closely with backend engineers to define API requirements and resolve integration issues.
- Implement secure authentication, authorization, data handling, and API communication.
- Handle offline functionality, caching, synchronization, and error management where required.
Performance & Security:
- Monitor and optimise application performance, memory usage, battery consumption, and network efficiency.
- Identify and resolve crashes, bugs, bottlenecks, and performance issues.
- Implement secure coding practices and protect sensitive user and business data.
- Ensure applications comply with relevant security and privacy requirements.
Testing & Quality Assurance:
- Develop and maintain unit, integration, and UI tests.
- Collaborate with QA engineers to identify, reproduce, and resolve defects.
- Participate in code reviews and enforce quality standards.
- Ensure applications meet defined acceptance criteria before release.
- Conduct regression testing and support continuous quality improvement.
Deployment & Release Management:
- Manage mobile application builds, releases, and deployment to relevant app stores.
- Work with DevOps and engineering teams to establish and maintain CI/CD pipelines.
- Manage application versioning and release documentation.
- Monitor production releases and respond promptly to critical issues.
Product Collaboration:
- Work closely with Product Managers to understand business objectives and technical requirements.
- Provide technical estimates, identify implementation risks, and contribute to product planning.
- Participate in Agile ceremonies including sprint planning, stand-ups, reviews, and retrospectives.
- Translate user and business needs into practical technical solutions.
Technical Leadership & Mentorship:
- Provide technical guidance and mentorship to junior and mid-level mobile engineers.
- Conduct and participate in peer code reviews.
- Promote engineering best practices, documentation, and knowledge sharing.
- Contribute to the continuous improvement of the engineering team's processes and standards.
Maintenance & Continuous Improvement:
- Monitor applications after deployment and proactively identify areas for improvement.
- Implement new features, enhancements, bug fixes, and platform updates.
- Keep abreast of emerging mobile technologies, frameworks, tools, and industry best practices.
- Recommend improvements to existing applications and development processes.
Key Performance Indicators (KPIs)
Performance will be measured against:
- Quality and reliability of mobile applications delivered.
- Timely delivery of assigned features and projects.
- Application crash and error rates.
- Mobile application performance and responsiveness.
- Defect rates and resolution turnaround time.
- Test coverage and code quality.
- Successful and stable production releases.
- API integration reliability.
- Security and compliance adherence.
- User experience and application performance metrics.
- Contribution to technical improvements and reduction of technical debt.
- Mentorship and knowledge-sharing within the engineering team.
Required Qualifications & Experience
- Bachelor's degree in Computer Science, Software Engineering, Information Technology, Engineering, or a related discipline.
- 8+ years of professional experience in mobile application development, with significant experience delivering production applications.
- Strong experience with at least one major mobile development ecosystem:
- Android: Kotlin/Java, Android SDK, Jetpack/Compose.
- iOS: Swift/Objective-C, SwiftUI/UIKit.
- Cross-platform: Flutter/Dart or React Native/TypeScript.
- Proven experience taking mobile applications through the complete development lifecycle.
- Strong understanding of software development principles, design patterns, data structures, algorithms, and application architecture.
- Demonstrable experience integrating APIs and third-party services.
- Experience with Git and modern software development workflows.
- Experience with automated testing and CI/CD processes.
- Experience working within Agile/Scrum development environments.
Technical Competencies:
The successful candidate should demonstrate strong competence in:
- Mobile application architecture
- Kotlin/Java, Swift, Flutter/Dart, or React Native
- RESTful APIs and backend integration
- Git/GitHub/GitLab
- Firebase and/or equivalent mobile services
- Push notifications
- Authentication and authorization
- Local databases and data persistence
- Application performance optimisation
- Unit, integration, and UI testing
- CI/CD and automated deployment
- Crash monitoring and application analytics
- Secure mobile application development
- App Store and Google Play deployment.
Key Soft Skills:
- Strong analytical and problem-solving ability.
- Excellent communication and interpersonal skills.
- Strong attention to detail.
- Ability to work independently and collaboratively.
- Strong ownership and accountability.
- Ability to manage competing priorities and meet deadlines.
- Commercial and product-oriented mindset.
- Ability to communicate complex technical concepts to non-technical stakeholders.
- Strong mentoring and leadership capabilities.
- Continuous-learning mindset.
Salary
N1,000,000 Monthly.
Application Closing Date
24th September, 2026.
How to Apply
Interested and qualified candidates should:
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Vacancy posted 2 days ago
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