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Oluseyi Immaneul

@oluseyiimmaneul

Message

Frontend engineer building performant, user-focused web and mobile applications.

Nigeria

Message

What I'm looking for

I seek an agile, collaborative team where I can lead frontend projects, improve performance and reliability, mentor engineers, and deliver user-centered web and mobile experiences.

I am a Frontend Engineer with a strong track record delivering robust, user-focused web and mobile applications in fast-paced environments. I specialize in React, React Native, and modern JavaScript/TypeScript stacks, with a focus on performance and responsive design.

I have led frontend teams and projects, improving engagement, reducing load times and crashes, and integrating automated pipelines, testing frameworks, and cloud-native practices. I regularly implement responsive designs, state management (Redux, Zustand), and analytics-driven improvements.

I am passionate about writing maintainable, testable code, mentoring colleagues, and translating business requirements into scalable technical solutions. I seek to contribute to innovative platforms by building intuitive interfaces and improving product reliability.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

Bankit Africa

Mar 2025 - Present (6 months)

Launched a new user interface that increased user engagement by 30% and reduced page load times by 50%, improving session duration and reducing support tickets by 35%.

React React Native TypeScript Dart Responsive Design Performance Optimization CI CD Cloud Infrastructure

Lead Frontend Engineer

Tech Champions

Jul 2024 - Feb 2025 (7 months)

Led front-end delivery of multiple projects using React and React Native, improving performance, SEO, and real-time UX while mentoring team members and integrating RESTful APIs and GraphQL.

React React Native JavaScript RESTful APIs GraphQL Performance Tuning SEO Mentoring

Software Engineer

Mocubes

Feb 2021 - Jul 2024 (3 years 5 months)

Built scalable web solutions and cloud-native architectures, containerized deployments with Docker and Kubernetes, and improved user engagement by 30% through intuitive UI development.

Docker Kubernetes APIs React Git Cloud Architecture Performance Optimization Frontend Development

Junior Software Engineer

Mocubes

Feb 2021 - Apr 2023 (2 years 2 months)

Developed user-friendly, mobile-responsive web pages and collaborated with designers and backend developers to maintain brand consistency and improve usability.