Emmanuel Yakubu

Innovative and solutions-driven Senior Software Engineer with 5+ years of experience designing, building, and deploying highly scalable mobile and web applications. Expert in the React ecosystem (React.js, Next.js, React Native) and modern state management, with a proven track record of architecting offline-first systems, real-time data integrations, and seamless deployment pipelines. Adept at driving performance optimizations that reduce latency, streamline CI/CD processes, and consistently deliver high-impact, user-centric products for distributed teams and global platforms.

Software Engineer (Mobile & Frontend) at SETY INC. (2022-04 – Present)

• Architected and delivered core features for an emergency security system supporting real-time help requests, driving a 40% expansion in the active user base through continuous, iterative UI/UX enhancements.
• Engineered WebSocket-based real-time location tracking and instant alert mechanisms within the mobile agent application, ensuring high-availability data syncing for verified responders.
• Revamped the administrative and business web portals, standardizing the UI component library and improving accessibility compliance.
• Strengthened platform security logic across both web and mobile clients, contributing to a 30% reduction in security breach incidents.

Mobile Engineer (Contract) at ZIJELA ICT (2025-06 – 2025-09)

• Led the end-to-end development of Resolvr, a comprehensive facility management mobile application, from initial wireframes to production deployment.
• Successfully published the application to the Google Play Store and managed Apple App Store compliance protocols and enterprise distribution.
• Built and integrated a custom POS vending solution specifically tailored for on-site facility management operations.
• Configured and managed application deployment pipelines, ensuring zero-downtime, stable CI/CD releases across both iOS and Android platforms.

Full Stack Engineer (Contract) at SPEAKFLUENT (2024-08 – 2025-05)

• Developed a robust Next.js-based web platform serving as the primary hub for scheduling speech therapy sessions and distributing communication resources.
• Optimized application performance by implementing Server-Side Rendering (SSR) and advanced caching strategies, successfully decreasing page load times by 35%.
• Integrated a suite of Google APIs (Calendar, Meet, Gmail) to automate workflow, reducing session setup time and improving client satisfaction scores by 20%.
• Designed and delivered a comprehensive, data-rich admin dashboard enabling therapists to track client progress, manage session history, and generate automated reports.

Software Engineer (Mobile & Frontend) at GENNAIOS TECHNOLOGY (2024-04 – 2025-04)

• Independently developed and launched a high-security digital identity and document verification mobile application to the Google Play Store.
• Architected an offline-first ecosystem utilizing Realm database, ensuring seamless data collection (including signature and audio capture) for field agents operating in low-connectivity regions.
• Integrated Paystack for secure, encrypted mobile payments, eliminating transactional friction.
• Built a unified suite of web dashboards for administrators, partners, and businesses, significantly increasing the reliability and speed of the identity verification lifecycle.

Software Engineer at KEZA AFRICA (2023-08 – 2024-04)

• Spearheaded the V3 architecture overhaul of the customer web application, refactoring legacy code and introducing 60% logic enhancements for scalability.
• Developed a specialized mobile sales and lending partner app that accelerated the loan approval process by 40% and reduced manual input errors by 50%.
• Streamlined operational workflows by building an internal administrative application, reducing manual overhead tasks by 35%.
• Created a dedicated sales application to track agent KPIs and facilitate faster sales registration, directly boosting business partnerships and user retention.

Frontend Engineer (Contract) at TUROG TECHNOLOGY (2023-01 – 2023-06)

• Re-engineered the core frontend codebase of a digital banking platform, elevating overall application performance by 25% and reducing page load times by 40%.
• Built a highly secure, pixel-perfect online banking web portal that increased user retention by 30% by delivering a seamless cross-device experience.

Junior Frontend Engineer at ANYI HEALTH (2021-02 – 2021-12)

• Developed responsive web features facilitating digital health loan applications, accelerating the end-to-end application lifecycle by 25%.
• Integrated the Mono API to automate the verification of user financial data, ensuring secure and compliant data handling.

Frontend Engineering Intern at Smile Laundry (2020-10 – 2020-12)

UI/UX improvements contributed to a 40% increase in the active user base.