Senior Mobile Developer

October 30

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Certn

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B2B • HR Tech • Compliance

Certn is a leading platform that specializes in providing comprehensive and efficient background checks for businesses worldwide. Designed to accommodate the dynamic needs of various industries, Certn offers tech-driven solutions that streamline the background check process, reducing time-to-hire by up to 80% and costs by up to 30%. With its innovative no-code, low-development technology, Certn conducts a range of checks including criminal record, identity, employment, and credential verifications across more than 200 countries and territories. By integrating seamlessly with existing systems through its API, Certn ensures a smooth and enhanced candidate experience, making it the preferred choice for businesses of all sizes in need of reliable, fast, and cost-effective screening solutions.

201 - 500 employees

🤝 B2B

👥 HR Tech

📋 Compliance

💰 $109M Series B on 2023-05

📋 Description

• Build and enhance mobile applications for iOS and/or Android using TypeScript, Expo and clean coding practices, ensuring high-quality, scalable, and maintainable products that deliver a stable and feature-rich user experience. • Implement mobile UI/UX designs in collaboration with design teams so that interfaces reflect Certn’s brand identity, accessibility standards, and usability goals, resulting in intuitive and engaging experiences. • Refactor and maintain existing codebases to improve structure, efficiency, and long-term sustainability, enabling faster development cycles and consistent application reliability. • Manage deployments using EAS to the App Store and Play Store • Resolve any issues found during an App Review • Manage OTA updates using EAS Update. • Manage any issues with certificates, provisioning profiles and keystores. • Integrate mobile applications with backend APIs and services to provide users with real-time, secure access to platform functionality, ensuring seamless and dependable communication between mobile and server systems. • Collaborate with backend and DevOps teams to align on API standards and deployment processes, reducing integration issues and improving delivery speed across products. • Test integrations under various device and network conditions to identify and resolve performance gaps, ensuring consistent responsiveness and reliability across environments. • Conduct thorough testing and debugging (manual and automated) throughout the development lifecycle to detect and fix issues early, maintaining a reliable, high-performing mobile experience for users. • Monitor and optimize app performance metrics such as load time, responsiveness, and resource usage to enhance speed and efficiency, ultimately improving satisfaction and retention. • Leverage analytics and crash reporting tools to make data-driven improvements that enhance app stability, guiding continuous optimization and user confidence. • Work closely with product managers and designers to translate business needs into technical solutions, ensuring that mobile development supports strategic product objectives and customer outcomes. • Participate in Agile ceremonies (e.g., sprint planning, retrospectives, and demos) to maintain alignment, promote transparency, and foster iterative improvements across teams. • Document and share technical knowledge to build collective understanding and consistency in development practices, enabling faster onboarding and stronger collaboration within engineering. • Research and evaluate emerging technologies and frameworks to identify opportunities for innovation, ensuring Certn’s mobile applications remain competitive, efficient, and forward-looking. • Contribute to architectural and strategic technical decisions to strengthen scalability and performance, building a sustainable foundation for future growth. • Champion mobile development best practices and mentorship within the team to elevate code quality and foster a culture of continuous improvement and technical excellence.

🎯 Requirements

• Post-secondary education in Computer Science, Software Engineering, or a related discipline, or an equivalent combination of formal education and practical experience • Additional coursework or certification in mobile development (e.g., Android Developer Certification, Apple Developer Program, or equivalent) is considered an asset. • Proficiency in TypeScript / React. • Strong understanding of mobile UI/UX design principles and accessibility standards. • Experience integrating mobile apps with RESTful APIs and backend systems. • Knowledge of mobile testing frameworks and debugging tools (e.g., XCTest, Espresso, Firebase Crashlytics). • Familiarity with Agile development practices and version control systems (Git). • Strong analytical and problem-solving skills. • Clear communication and collaboration abilities. • Demonstrated experience publishing applications to the App Store or Google Play. • Experience working within cloud-integrated or API-driven environments. • Exposure to performance tuning, analytics, and app monitoring tools.

🏖️ Benefits

• Competitive salary • Commission structure • Comprehensive health benefits • Generous paid time off