Omojugba Olawale, Developer in Lagos, Nigeria
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Omojugba Olawale

Verified Expert  in Engineering

Front-end Engineer and Developer

Lagos, Nigeria

Toptal member since August 30, 2022

Bio

Olawale is a front-end engineer with six years of experience building stunning websites and web apps using React, Next.js, Vue, TypeScript, and JavaScript technologies. He focuses on building sophisticated but easy-to-use web applications in the fintech, banking, B2B, B2C, and telecommunication sectors. Olawale has created a payment application to facilitate bill payments, identity verifications, and wallet transactions used by millions of customers.

Portfolio

FastDoc AI
React, Next.js, TypeScript, Tailwind CSS, Styled-components, Jest, Forge...
LYNK TECHNOLOGIES INC.
React, Tailwind CSS, TypeScript, Next.js
Tempo Software
Amazon S3 (AWS S3), Axios, Bootstrap, JavaScript, TypeScript, React, Next.js...

Experience

  • React - 6 years
  • Sass - 5 years
  • Redux - 5 years
  • Next.js - 5 years
  • JavaScript - 5 years
  • Bootstrap - 5 years
  • TypeScript - 3 years
  • Tailwind CSS - 1 year

Availability

Full-time

Preferred Environment

React, Vue, Tailwind CSS, TypeScript, Next.js, Styled-components, CI/CD Pipelines, Redux, Bootstrap, React Testing Library

The most amazing...

...thing I've developed is a banking website and web app called Mintyn. The app is currently used by millions of users for processing payments and paying bills.

Work Experience

Senior Front-end Engineer

2023 - PRESENT
FastDoc AI
  • Led the development and optimization of the Jira Forge application, ensuring exceptional user experience (UX) and adherence to industry and Jira best practices.
  • Championed the development of accessible and secure front-end code Jira application.
  • Effectively collaborated with UI/UX designers to translate design mockups into high-fidelity, functional front-end applications with a 95% success rate.
  • Drove innovation by exploring and implementing JIRA forge implementable latest features to enhance user experience and application functionality by 95%.
  • Continuously analyzed and optimized front-end performance metrics, ensuring fast loading times and a smooth user experience across all devices.
Technologies: React, Next.js, TypeScript, Tailwind CSS, Styled-components, Jest, Forge, CI/CD Pipelines, Docker, Git, GitHub

React Developer

2024 - 2024
LYNK TECHNOLOGIES INC.
  • Led the revamp and optimization of an AI-powered search engine web application.
  • Developed and executed a comprehensive collection feature that allows users to add searched items to their favorite collection.
  • Developed and executed a comprehensive search history feature to allow users to see their previous search for further references.
  • Wrote clean, modular, well-documented code, allowing for long-term maintainability and knowledge transfer.
  • Demonstrated strong problem-solving skills by promptly addressing internal bugs and resolving customer-reported issues and feedback, ensuring a seamless user experience.
Technologies: React, Tailwind CSS, TypeScript, Next.js

Senior Front-end Engineer

2022 - 2023
Tempo Software
  • Led front-end innovation. Championed the adoption of new front-end technologies and frameworks, improving development efficiency by 65%.
  • Contributed to architecture and development. Designed, implemented, and optimized high-performing, responsive user interfaces that exceed user expectations. (e.g., reduced UI load time by 20%, leading to a 15% increase in user engagement).
  • Delivered clean, maintainable, cross-browser-compatible code, ensuring a flawless user experience across all devices and achieving a 99.9% bug-free rating on front-end code deployments.
  • Worked on performance optimization. Analyzed and optimized front-end performance metrics, resulting in a 75% reduction in page load times.
  • Wrote clean, modular, and well-documented code, fostering long-term code maintainability and knowledge transfer.
  • Championed strong front-end testing practices, including unit, integration, and end-to-end testing, contributing to a defect-free production environment.
Technologies: Amazon S3 (AWS S3), Axios, Bootstrap, JavaScript, TypeScript, React, Next.js, Styled-components, Docker, Agile, Swagger, React Redux, Terraform, Context API, Sass, Vanilla JS, CSS, Git, GitHub, HTML, Enzyme, Jest, Slack, Storybook, Pixel Perfect, Technical Leadership, Architecture, UX Design, Amazon Web Services (AWS), Testing, ECMAScript (ES6), Monorepos, React Router, React Query, API Integration, React Hook Form, TanStack Router, Vite, Microfrontends, Redux Toolkit, Single-page Applications (SPAs)

Front-end Engineering Lead

2021 - 2023
Blusalt Financial Services
  • Led the development and optimization of front-end applications, ensuring exceptional user experience (UX) and adherence to industry best practices with an 85% increase.
  • Championed the development of accessible and secure front-end code, adhering to WCAG guidelines and industry security standards.
  • Collaborated effectively with UI/UX designers to translate design mock-ups into high-fidelity, functional front-end applications, with a 95% success rate.
  • Drove innovation by exploring, mentoring, and implementing cutting-edge front-end technologies (e.g., React, Vue) to enhance user experience and application functionality by 85%.
  • Analyzed and optimized front-end performance metrics continuously, ensuring fast loading times and a smooth user experience across all devices.
  • Created a top-notch multitenant web payment platform that is white-labeled for client's experience with 93.7% ease.
Technologies: React, Vue, JavaScript, Next.js, Bootstrap, jQuery, CSS, Sass, HTML, GraphQL, Material UI, Materialize, REST APIs, JSON Web Tokens (JWT), JSX, GitHub, Responsive Web Apps, User Interface (UI), Front-end Development, User Experience (UX), Front-end, Figma, HTML5, Amazon S3 (AWS S3), Amazon CloudFront CDN, APIs, JavaScript Charting, Data Visualization, Risk Analysis, Jest, Git, Styled-components, Jira, Web Development, Unit Testing, Vanilla JS, React Redux, Chart.js, Technical Leadership, Architecture, Vue 3, Application State Management, UX Design, Amazon Web Services (AWS), Testing, Monorepos, React Router, React Query, API Integration, React Hook Form, TanStack Router, Vite, Payment APIs, Highcharts, Dashboards, Microfrontends, Redux Toolkit, Tailwind CSS, TypeScript, Cloudinary, Single-page Applications (SPAs)

Front-end Engineer

2020 - 2022
Mint Financial Technological Services
  • Developed a React-based web banking application, Mintyn, with features like saving goals, bill payments, and more. It is the most important web application owned by the company, and millions of customers use it.
  • Created engaging company admin and trade portals to manage and enhance their products, services, and client experience.
  • Optimized the front-end code obsessively for speed, achieving a minimum of 70% reduction in page load times and 65% improvement in First Contentful Paint (FCP).
  • Developed and executed a comprehensive front-end testing strategy, including unit, integration, and cross-browser testing, aiming for 80% code coverage on unit tests.
  • Strategized with co-experts in creating an outsourced banking web application portal to rebuild strong and accessible websites with metrics and new technologies.
  • Delivered exceptional user experiences across all devices, from desktop to mobile, ensuring consistent UI and functionality with the enhanced value of 85% creation of the company's mini sports betting and affiliate marketing portal and 87.5% traffic.
  • Monitored front-end performance metrics proactively using tools like APM, identifying and resolving bottlenecks to maintain a smooth user experience.
Technologies: React, Next.js, JavaScript, TypeScript, Bootstrap, Axios, Redux, MUI CSS, Material UI, jQuery, HTML, CSS, Sass, REST APIs, JSON Web Tokens (JWT), OAuth, JSX, GitHub, Responsive Web Apps, User Interface (UI), Front-end Development, User Experience (UX), Front-end, Figma, HTML5, APIs, JavaScript Charting, Data Visualization, Jest, Git, Styled-components, Jira, Web Development, Unit Testing, Vanilla JS, React Redux, Chart.js, Agile, Pixel Perfect, Architecture, UX Design, Testing, React Router, React Query, API Integration, Payment APIs, Dashboards, Redux Toolkit, Cloud Firestore, Cloudinary, Single-page Applications (SPAs)

Front-end Engineer

2020 - 2020
Remote Roofing
  • Increased website conversion rate for quote requests by 20% within six months through A/B testing and UI/UX improvements.
  • Reduced the mobile app bounce rate by 10% within three months by implementing responsive design and optimizing user flows.
  • Increased lead generation from landing pages by 35% within four months by crafting compelling copy, designing clear CTAs (calls to action), and integrating lead capture forms.
  • Strategized with the team to create an AI-powered platform for accessing roof conditions and strong client needs.
  • Utilized heatmaps and user session recordings to identify and address UI pain points, resulting in a 12% improvement in user engagement metrics (e.g., time spent on key pages).
Technologies: React, Next.js, JavaScript, HTML, CSS, Sass, jQuery, Bootstrap, Redux, REST APIs, JSX, GitHub, Responsive Web Apps, User Interface (UI), Front-end Development, User Experience (UX), Front-end, HTML5, APIs, JavaScript Charting, Git, Styled-components, Jira, Web Development, Unit Testing, Vanilla JS, React Redux, React Router, API Integration, Dashboards, Single-page Applications (SPAs)

Front-end Developer

2018 - 2020
ALET Solutions
  • Built a React-based portfolio website to portray the company profile and services they rendered.
  • Created a React-based lending platform for a client and partner company to lease out heavy duties machines.
  • Oversaw and maintained the company website for portfolio, content, and services rendered updates.
Technologies: JavaScript, jQuery, React, Bootstrap, HTML, CSS, Sass, Git, Styled-components, Web Development, Unit Testing, Vanilla JS, React Router, API Integration

Experience

Mintyn Website

https://mintyn.com/
Mintyn is a website that acts as the face of Mintyn Online Bank.

It showcases and advertises various banking and payment services offered by Mintyn Online Bank, including personal and business accounts, mutual fund investments, money transfers, airtime and data top-ups, utility bill payments, and savings.

It was built with Next.js, jQuery, JavaScript, Bootstrap, styled-components, and Sass.

My main contribution was rebuilding the website, which is the face of the company and requires a pixel-perfect design.

Firstly, I reviewed the design with the product team to make sure the design was pixel-perfect and had clearer concepts about the design. I defined the design elements and templates that are globally available, which resulted in re-useable components such as buttons, typography, spacing, and so on. I architected the layout and the whole code structure and developed the website with the same characteristics as the design.

Mintyn Online Bank

https://app.mintyn.com/
Mintyn Online Bank is a digital web banking application that offers a free, smarter, and better alternative to the current banking system. It provides various banking and payment services, which include personal and business accounts, mutual fund investments, money transfers, airtime and data top-ups, utility bill payments, and savings.

It was built with React, Redux, JavaScript, Bootstrap, styled components, Sass, and Chart.js.

My main contribution was building the utility bill payments and savings features by architecting the layout, implementing the features, refactoring the onboarding process and subsequent features, and writing a test for each implementation.

Blusalt Customer Portal

https://app.blusalt.net/
A Vue-based application for identity verification and payments. As the front-end engineer, I was brought in to stabilize a non-functioning and unsellable merchant portal and its admin. It was a daunting task for me as I did not have much experience with Vue at the time. However, I stabilized the merchant portal and its admin and added more features. The project was successful and is currently used by a lot of merchants.

Meritrade

https://meritrade.blusalt.net/
A React-based stock trading web application to trade stocks in Nigeria. I single-handedly built the application from start to finish using React and Apollo graphQL because of its real-time data transmission.

Blusalt Website

https://blusalt.net/
Blusalt is a website that acts as the face of Blusalt Financial Services Limited.

It showcases and advertises various services offered by Blusalt Financial Services Limited: payment-as-a-service (PaaS), banking-as-a-service (BaaS), card-as-a-service (CaaS), wallet-as-a-service (WaaS), onboarding-as-a-service (OaaS), and SaaS Blocks.

It was built with Next.js, jQuery, JavaScript, Material UI, and SCSS.

I was tasked with building the whole website, which is the face of the company and requires a pixel-perfect design.

Firstly, I reviewed the design with the product team to ensure it was pixel-perfect and had clearer concepts about the design. I defined the design elements and templates that are globally available, which resulted in re-useable components such as buttons, typography, spacing, and so on. I architected the layout and the whole code structure and developed the website with the same characteristics as the design.

My Portfolio

A React-based application to show current or potential clients and employers information about me and what I could offer. I have specifically worked on promoting some of my work to provide an online presence for my work and business.

It was built with React, Styled Components, SCSS, and Firebase.

Education

2016 - 2019

Bachelor's Degree in Computer Engineering

Obafemi Awolowo University - Ile-Ife, Osun State, Nigeria

Skills

Libraries/APIs

React, Vue, REST APIs, React Redux, React Router, React Query, Highcharts, jQuery, JavaScript Charting, Chart.js, Vue 3, React Hook Form, Vuex, Context API, React Testing Library

Tools

JSX, Git, Redux Toolkit, Firebase Authentication, GitHub, TanStack Router, Figma, Amazon CloudFront CDN, Jira, Terraform, Slack

Languages

JavaScript, Sass, CSS, HTML, HTML5, ECMAScript (ES6), TypeScript, GraphQL, CSS3, SCSS

Frameworks

Redux, Bootstrap, Next.js, Vanilla JS, Tailwind CSS, Materialize, Material UI, JSON Web Tokens (JWT), Jest, MUI CSS, Vuetify, Swagger

Paradigms

Unit Testing, Microfrontends, Agile, UX Design, Testing

Platforms

Firebase, Docker, Amazon Web Services (AWS)

Storage

Firebase Realtime Database, Cloud Firestore, Amazon S3 (AWS S3)

Other

Responsive Web Apps, User Interface (UI), Front-end Development, Front-end, APIs, Data Visualization, Styled-components, Web Development, Pixel Perfect, Technical Leadership, Architecture, API Integration, Vite, Dashboards, Cloudinary, Algorithms, OAuth, User Experience (UX), Risk Analysis, Credit Risk, Segment, Storybook, Application State Management, Monorepos, Payment APIs, Axios, Enzyme, Intercom, CI/CD Pipelines, Single-page Applications (SPAs), Forge

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