Chinonso Johnson

• Recruited as one of initial developers to architect frontend software development foundation, including base structure, boilerplates, and style guides, using React, Next.js, and TypeScript; enabled scalable growth to seven-person team.
• Led frontend development for SpinBet online casino platform. Delivered key features, such as Tournament platform, Christmas Campaign, and Bet-ticker, to drive competitiveness, user engagement, and new customer acquisition.
• Collaborated closely with UX and Backend Development teams to gather requirements and resolve technical challenges, escalating critical issues to executive leadership and Engineering Manager as needed.
• Delivered actionable feedback and mentorship to junior team members, identifying improvement opportunities.

Select Achievements

• Enhanced development efficiency 35% and reduced integration times 20% by engineering reusable, modular UI components using React and TypeScript.
• Improved mobile session durations 30% and desktop conversions 15% through responsive design and performance optimization with Next.js.
• Reduced user complaints 30% and increased daily active users 22% through improved cross-functional communication and well-structured style guides. Enabled team to write robust, performant, and maintainable code.
• Led integration of newly outsourced backend service, including connecting to new APIs and migrating data from underperforming legacy system.
• Optimized web performance, accessibility, and SEO using Lighthouse to ensure high-quality user experience.

• Engineered key modules for ScienceLogic SaaS platform using React, TypeScript, and GraphQL, enabling monitoring of virtual and physical devices. Collaborated with cross-functional teams, including Product, UX, and Backend Development, to align project goals and ensure on-time, within-budget delivery.
• Led design strategy for Device Groups feature, reducing production time 45% and increasing user satisfaction 22% by incorporating reusable React components and clearly segmenting development tasks.
• Lowered load times 55% through optimization of SLDATA-Grid, applying performance-focused techniques such as selective GraphQL queries and frontend rendering improvements.
• Drove consistency across Frontend Development team by creating comprehensive code quality and performance guides, accelerating onboarding and aligning best practices across team.

• Led and mentored team of seven engineers on Africlick mobile application development, leveraging React, React Native, and TypeScript to guide development workflows. Identified technical gaps, supported professional growth, and promoted hands-on learning to improve skills and team productivity.
• Ensured high-quality delivery by implementing performance testing and in-depth code reviews. Enforced best practices across React Native codebase using TypeScript and cross-platform debugging tools, such as Android Studio and Xcode.
• Reduced post-deployment issues 40% by establishing consistent engineering standards, including style guides, pull request templates, and issue triage processes.
• Increased user retention 35% through optimization of cross-platform mobile applications. Built unified codebase in React Native and Typescript, streamlining development and enabling consistent performance across Android and iOS.