dblackdev
Lead Mobile Engineer | React Native Specialist
An innovative and meticulous Lead Frontend and Mobile Engineer with 6+ years of progressive experience building scalable web and cross-platform mobile applications across fintech, e-commerce, healthcare, and digital product environments. Proven expertise in React, React Native, and modern frontend architecture, delivering high-performance systems serving 100k+ users with measurable improvements in speed, stability, and user engagement. Strong track record of optimizing application performance, reducing crash rates by up to 47%, and improving load times by over 50% through advanced engineering practices. Experienced in leading engineering teams, mentoring developers, and enforcing code quality standards that consistently reduce defects and improve delivery efficiency.
Experience: 5 years
Yearly salary: $36,000
Hourly rate: $55
Nationality: 🇳🇬 Nigeria
Experience
Frontend Software Engineer
EASEPAY 2023 - 2023
Developed merchant payment platform enabling real-time transaction processing across 120+ active merchant accounts. Deployed responsive frontend systems that enhanced cross-device accessibility and increased user engagement by 41%. Engineered seamless API orchestration layers, ensuring stable data synchronization between mobile and backend services. Constructed company marketing website, boosting online customer acquisition by 46% and strengthening brand visibility. Integrated authentication and state management APIs, improving user flow security and reducing login failure rates by 37%.
Frontend Engineer
JALEBI 2022 - 2024
Diagnosed and resolved complex application defects through root-cause analysis, decreasing crash rates by 47%. Revamped testing and validation processes, increasing deployment reliability and reducing post-release issues by 28%. Coordinated cross-functional design alignment sessions, ensuring consistent visual identity across mobile and web ecosystems. Institutionalized design standards with product designers, enhancing interface cohesion and user experience alignment by 35%. Orchestrated development of shared UI component library across React and React Native, improving development speed by 42%. Pioneered reusable front-end architecture patterns reducing redundant development and improving engineering efficiency by 33%.
Mobile Engineer
TORCHE AFRICA 2022 - 2023
Released feature enhancements that boosted customer acquisition by 50%, directly strengthening product-market traction. Architected seamless payment flow infrastructure, improving checkout reliability and reducing transaction drop-off by 38%. Embedded Paystack and multiple third-party payment gateways, reducing transaction friction and increasing payment success. Delivered a customer-facing payment application using Expo, achieving 52% improvement in user acquisition and engagement. Coordinated end-to-end mobile release cycles, ensuring stable deployment of updates aligned with user experience expectations.
Lead Frontend Engineer (Web & Mobile)
THRINDLE 2021 - 2024
Accelerated frontend rendering performance through optimization techniques, cutting page load time by 44%. Directed end-to-end development of merchant inventory management application, launching product within 6-month cycle. Engineered scalable architectures for web platforms, delivering 47% improvement in load performance and user experience. Instituted structured code-review and PR-merge framework, improving code quality by 39% and reducing integration errors. Standardized engineering review protocols, strengthening maintainability and ensuring consistent adherence to best practices. Delivered full lifecycle product execution from ideation to deployment, enabling seamless transition of business requirements.
Mobile Engineer
MONKEY MUSIC 2021 - 2023
Collaborated with cross-functional engineering and design teams, accelerating feature delivery timelines by 36%. Maintained application stability across 80+ device models through rigorous testing and quality assurance practices. Enhanced audio performance optimization modules, reducing playback latency by 41% and improving user experience. Coordinated iterative release cycles for mobile features, ensuring smooth deployment and improved overall app reliability. Contributed to development of DJ mobile application, elevating user engagement by 43% through enhanced core functionality.
Frontend Engineer
CHRYSALIS INTEGRATED SERVICES & SARTORIAL AFRICA LIMITED 2021 - 2021
Crafted usability-driven web products, increasing user engagement by 45% through improved accessibility and design. Engineered reusable mobile-first component libraries, reducing future development time by 38% across multiple projects. Optimized frontend performance and accessibility standards, improving Lighthouse scores by 42% across key web pages. Implemented analytics instrumentation across web platforms, enabling tracking of 120+ user behavior metrics for optimization. Spearheaded modular UI architecture development, enabling faster iteration cycles and improving cross-team development efficiency.
Web & Mobile Frontend Developer
24 DESIGN COMPANY 2019 - 2021
Engineered scalable authentication workflows, enabling secure user access across 100+ daily active sessions. Directed end-to-end development of React Native music application, achieving 52% improvement in user retention. Orchestrated launch of company public website, increasing inbound traffic by 47% and improving digital brand visibility. Spearheaded product deployment strategy for web and mobile platforms, ensuring seamless cross-platform release execution. Embedded Google and Facebook authentication systems, reducing onboarding friction and improving signup completion rate by 39%.
Frontend Developer (Intern)
FIRDEHKO HEALTHCARE LIMITED 2018 - 2019
Built responsive web interface modules, enhancing page load performance by 38% across core application screens. Optimized frontend rendering logic, decreasing component re-render cycles and improving user interaction speed by 33%. Implemented structured UI patterns for scalable web delivery, supporting seamless integration across 90+ interface views. Supported web platform enhancement initiatives, contributing to improved usability and smoother cross-device experience. Developed reusable mobile-first React components, improving UI consistency and reducing development redundancy by 41%.
Skills
nextjs
react
typescript
react-native
english