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Chidi Orji
Verified Expert in Engineering
React and Full-stack Developer
Lagos, Nigeria
Toptal member since October 12, 2021
Bio
Chidi is an experienced full-stack engineer with a front-end focus. Known for crafting responsive, pixel-perfect UIs and exceptional user experiences that strike a fine balance between aesthetics and performance, he is passionate about design systems and scalable architecture. Chidi delivers high ROI through a mix of technical depth, cross-functional collaboration, product thinking, and aligning technical solutions with business goals.
Portfolio
Flexbase Technologies, Inc
React, Figma to React, TypeScript, JavaScript, Mantine, React Query...
Axle Marketing & Technology, LLC
HTML, Tailwind CSS, Python, Wagtail CMS, Visual Studio Code (VS Code)
EBM Consulting Inc.
React, TypeScript, Node.js, Responsive UI, Databases, REST APIs, Full-stack...
Experience
- React - 6 years
- JavaScript - 6 years
- Python - 5 years
- Next.js - 4 years
- TypeScript - 4 years
- Django - 4 years
- GraphQL - 3 years
- React Native - 3 years
Preferred Environment
Django, Python, React, GraphQL, React Apollo, Next.js, React Native, TypeScript, Machine Learning, Machine Learning (ML) APIs
The most amazing...
...highlight of my career has been architecting, building, and managing the deployment of the entire back-end infrastructure for the BlueLines accounting app.
Work Experience
Senior React Developer
2025 - PRESENT
Flexbase Technologies, Inc
- Led the "Beautification" initiative which focused on refining and polishing the flex web application interface.
- Contributed to the new information architecture initiative with the stated (and achieved) goal of consolidating the different card pages into a more streamlined and improved user experience.
- Worked as a major contributor, with 17 merged pull requests, to the retrofitting initiative to prepare the app for a new multi-account flow.
Technologies: React, Figma to React, TypeScript, JavaScript, Mantine, React Query, Application State Management, Visual Studio Code (VS Code), Vitest, Large Language Models (LLMs), Framer Motion, Agentic AI, Full-stack Development
HTML & Tailwind CSS Developer
2025 - 2025
Axle Marketing & Technology, LLC
- Translated Adobe XD design files into Django template pages.
- Implemented page content blocks using Wagtail models.
- Rebranded the front end of the bull team's only site, employing Tailwind and Vanilla CSS.
Technologies: HTML, Tailwind CSS, Python, Wagtail CMS, Visual Studio Code (VS Code)
Full-stack Developer
2025 - 2025
EBM Consulting Inc.
- Future-proofed the application and significantly increased the developer experience by at least a factor of 10 by upgrading from the existing @nrwl package to the latest @nx package and also upgrading React from version 17 to 19.
- Improved the website performance by over 200% and SEO performance by over 150%, as measured by Lighthouse, by changing the bundling system to the latest version of Vite and employing optimization techniques such as lazy-loading.
- Engineered a new look and feel and improved mobile responsiveness, increasing app interaction since users can now use it on their phones more easily.
- Provided technical advice on including different sponsorship levels in the application and implemented the same in the app as an additional income stream for the client.
Technologies: React, TypeScript, Node.js, Responsive UI, Databases, REST APIs, Full-stack, UX Design, Express.js, MySQL, NestJS, DigitalOcean API, REST, RESTful Web Services, Application State Management, Visual Studio Code (VS Code), Vitest, Framer Motion, Full-stack Development, Webpack
Front-end React, Next.js, and Tailwind CSS Developer
2024 - 2025
EvolveAI
- Turned Figma designs into performant and pixel-perfect React components, maintaining 99% fidelity to the original.
- Engineered a React component that streams LLM responses via server-sent events, mimicking ChatGPT and Claude UX and improving response rendering speed.
- Designed a secure authentication system by combining MetaMask wallet integration with an HMAC key, reducing the risk of unauthorized access incidents.
- Co-developed a high-performance OHLC candlestick, enabling real-time visualization of price data for 1,000+ crypto tokens.
- Participated in four design critiques that mapped the user journey, ensuring coherence in the application design.
- Implemented code to securely encrypt and transmit crypto wallet privacy data, reducing exposure to potential breaches.
Technologies: React, Next.js, Kinde, Node.js, Tailwind CSS, Tailwind UI, Figma, OpenAI, WebSockets, Azure, Jest, Express.js, REST, RESTful Web Services, React Query, Figma to React, Web3, UI Testing, Application State Management, Visual Studio Code (VS Code), Vitest, Large Language Models (LLMs), React Testing Library, Webpack
Senior Full-stack Software Engineer
2024 - 2025
SmartTerm
- Built a scalable role-based access control (RBAC) system for 20,000+ students and faculty across 50+ schools, reducing permission-related support tickets by 95%.
- Delivered 50+ pull requests in six months, which includes critical bug fixes and 10+ new REST API endpoints.
- Implemented a new course management system, which led to a 20% increase in satisfaction rate among school faculty.
- Contributed heavily to a new LMS built for a top-tier Caribbean college, developing scalable features for course delivery and student progress tracking.
Technologies: Angular, Node.js, Express.js, MySQL, REST, RESTful Web Services, Learning Management Systems (LMS), Application State Management, Visual Studio Code (VS Code), Full-stack Development
Senior Full-stack Developer
2024 - 2024
Airopay Ltd
- Spearheaded front-end development for the Airofunds investment admin app using React, Vite, and TanStack Query for state management.
- Cut admin data entry time by 50% through performant, intuitive, and high-fidelity UI/UX.
- Assembled and led a 3-member engineering team for the Ellibusiness MVP, conducting 20+ technical interviews and hiring two high-impact developers.
- Delivered Ellibusiness v1 on schedule, integrating onboarding, ID verification, and money transfer, resulting in 20% user growth post-launch.
Technologies: React, Node.js, TypeScript, JavaScript, Express.js, REST, React Query, Figma to React, Application State Management, Visual Studio Code (VS Code), React Testing Library
React Developer
2024 - 2024
WorksheetsAI Inc.
- Built the front end of the Teachshare.com marketplace.
- Collaborated closely with the CTO to triage bugs and make quick fixes.
- Managed front-end tasks and deliverables using Notion boards.
Technologies: React, HTML, JavaScript, CSS, TypeScript, Node.js, SolidJS, Next.js, Tailwind CSS, Stripe Connect API, Google API, PostgreSQL, Database Design, Database Management, SQL, CSS3, Ajax, Vercel, Tailwind UI, Jest, REST, Figma to React, Shadcn, Application State Management, Visual Studio Code (VS Code), React Testing Library
Senior Front-end Developer
2023 - 2024
Interswitch
- Architected the ISW Reach Platform's front end, reducing page load time to under 200 milliseconds via code splitting, lazy loading, and asset optimization.
- Used Jenkins and Bitbucket Cloud to implement CI/CD pipelines that run unit tests and subsequently deploy the front-end app.
- Authored comprehensive code and architectural documentation using markdown in the ReadMe project, reducing onboarding time for new developers.
- Achieved 100% Jira ticket completion, delivering three key features ahead of schedule.
Technologies: React, Redux, React Redux, Pixel Perfect, Responsive UI, Babel, ESLint, API Integration, WebApp, Vite, Charts, Dashboards, Single-page Applications (SPAs), CSS3, Ajax, Jest, REST, RESTful Web Services, Figma to React, React Router, Application State Management, Visual Studio Code (VS Code)
Senior Full-stack Developer
2023 - 2023
GreenBii Technologies Limited
- Developed 50+ optimized GraphQL endpoints for the Bluelines app with Django and Graphene, reducing average response time to under 0.2 seconds for high-traffic queries.
- Designed a real-time analytics dashboard with Chart.js, processing 50,000+ records and enabling immediate insights for stakeholders.
- Established CI/CD pipelines that cut deployment failures by 90% and reduced QA cycle time by at least one day per week.
- Created highly responsive and pixel-perfect UIs with React, GraphQL, and TypeScript, and used Apollo Client for data fetching.
Technologies: Architecture, React, Django, Django ORM, Apollo, Redux, React Redux, API Architecture, GraphQL, PostgreSQL, Redux Persist, Firebase, JSON, Figma, CI/CD Pipelines, Responsive Web Design (RWD), Front-end Development, Git, Tailwind CSS, Axios, Flask, Front-end Design, HTML, Responsive Web Apps, User Experience (UX), Context API, Unit Testing, User Interface (UI), Minimum Viable Product (MVP), Data Visualization, UI Components, WebSockets, Chart.js, ApexCharts.js, Front-end Architecture, React Native, Docker, Gunicorn, Pixel Perfect, Full-stack Development, Responsive UI, Babel, ESLint, Progressive Web Applications (PWAs), API Integration, WebApp, SCSS, Sass, Vite, Charts, Dashboards, Analytics, Redis, Single-page Applications (SPAs), Database Design, Database Management, SQL, CSS3, Ajax, Kinde, DigitalOcean, REST, RESTful Web Services, Figma to React, Application State Management, Visual Studio Code (VS Code), React Testing Library
Senior Front-end Developer
2022 - 2022
Autumn AI
- Shipped 20+ fast-loading Next.js with TypeScript pages, improving user retention by 90% through responsive design.
- Developed a tactical dashboard to monitor mental health metrics across hundreds of departments, empowering leaders to identify trends, allocate support, and improve team wellbeing.
- Reduced API turnaround time by proactively collaborating in cross-functional meetings to align back- and front-end requirements.
- Used Playwright to create end-to-end tests as part of the CI/CD pipeline, reducing production bugs to the barest minimum.
- Achieved over 95% ticket resolution rate, streamlining sprint velocity by at least 10%.
Technologies: React, Next.js, TypeScript, JavaScript, Front-end, HTML5, REST APIs, Tailwind CSS, Node.js, Test-driven Development (TDD), HTML, Storybook, Figma, CI/CD Pipelines, Cypress, Responsive Web Design (RWD), Front-end Development, Prisma, Git, Axios, Front-end Design, Responsive Web Apps, Minimum Viable Product (MVP), User Experience (UX), Artificial Intelligence (AI), Context API, Unit Testing, User Interface (UI), Data Visualization, UI Components, Chart.js, Front-end Architecture, Docker, Pixel Perfect, Full-stack Development, Responsive UI, Babel, ESLint, Progressive Web Applications (PWAs), API Integration, SCSS, Sass, Charts, Dashboards, Analytics, GitLab, Single-page Applications (SPAs), PostgreSQL, CSS3, Ajax, Tailwind UI, Kinde, Jest, REST, RESTful Web Services, Figma to React, UI Testing, Application State Management, Visual Studio Code (VS Code), React Testing Library
React Full-stack Developer
2022 - 2022
Toptal, LLC
- Implemented three API endpoints using Knex.js with raw SQL and a LinkedIn-like interface using Next.js with Material UI for a user comment system serving hundreds of concurrent users with an under 200 millisecond response time.
- Played a key role in weekly backlog refinement meetings and performed daily code reviews in collaboration with a team of 12+ developers.
- Engaged in pair programming and mentored five junior developers, accelerating their ramp-up time.
Technologies: React, Next.js, Knex.js, Material UI, APIs, React Query, Google Maps API, Figma, CI/CD Pipelines, Responsive Web Design (RWD), Front-end Development, Git, Axios, Front-end Design, HTML, Responsive Web Apps, User Experience (UX), Context API, Unit Testing, Node.js, User Interface (UI), Data Visualization, UI Components, Pixel Perfect, Responsive UI, Babel, ESLint, Progressive Web Applications (PWAs), API Integration, Sass, Database Management, Database Design, SQL, CSS3, Ajax, Jest, Express.js, REST, RESTful Web Services, Figma to React, UI Testing, Application State Management, Visual Studio Code (VS Code), React Testing Library
React Front-end Developer
2019 - 2022
Softcom
- Developed 95% of the Koya School admin UI, achieving 98% UI consistency via design system adoption and leveraging UIKit components and Redux for state management.
- Trained 200+ clients—students and faculty—increasing adoption rate by 20% in three months.
- Resolved over 90% of Jira tickets, reducing critical bugs by 95% post-release.
- Built a Chart.js dashboard that aggregates data from 10+ API endpoints, enabling data-driven decisions for school administrators.
- Participated in 10+ product and design critiques with key stakeholders to refine requirements and shape the development roadmap.
Technologies: React, JavaScript, React Redux, Learning Management Systems (LMS), Google Sheets, Jira, Front-end, JSX, Web Development, Web App Development, TypeScript, Test-driven Development (TDD), Node.js, Redux, Storybook, Figma, CI/CD Pipelines, Responsive Web Design (RWD), Front-end Development, Git, Axios, Front-end Design, HTML, Responsive Web Apps, User Experience (UX), Context API, Unit Testing, User Interface (UI), UI Components, Chart.js, ApexCharts.js, Front-end Architecture, React Native, Pixel Perfect, Responsive UI, Babel, ESLint, API Integration, SCSS, Sass, Charts, Dashboards, CSS3, Ajax, Vercel, Jest, Express.js, REST, RESTful Web Services, Figma to React, React Router, Application State Management, Visual Studio Code (VS Code), React Testing Library
Full-stack Developer (Django)
2018 - 2019
Funnshopp Enterprises
- Architected and built a Django-powered application for recording the company's revenues and expenses.
- Built the user-facing front end for interacting with the back end and database of the recording application.
- Oversaw the successful transition from paper-based data entry to the system that I developed and trained the company's staff to use the new system.
- Interpreted the data collected in the system to provide useful information to the management staff.
Technologies: Django, HTML5, CSS, Python, Front-end, Back-end, Full-stack, Django ORM, APIs, Responsive Web Design (RWD), Git, Axios, HTML, Responsive Web Apps, Docker, Full-stack Development, Responsive UI, ESLint, API Integration, Database Management, Database Design, SQL, CSS3, Ajax, Visual Studio Code (VS Code)
Contract Engineer
2016 - 2018
Pioneer International Projects Management Consultant (PIPMC)
- Interpreted project-planning Gantt charts presented by clients to assist with delay analysis.
- Developed a project timeline summary that provided high-level insights into where and when something might have gone wrong.
- Collaborated with teammates to develop contract terms and a model best suited for a client.
Technologies: Lean Project Management
Experience
BlueLines | Accounting App for Small & Medium-sized Businesses
https://app.bluelines.ioAs the sole and lead developer, I built the back end and front end
I created the back end with Django, Graphene, and a PostgreSQL database; the website with Next.js; the client front-end app with React and Apollo Client; and the Android app with React Native. The front-end code is hosted on Netlify, and the back-end infrastructure is deployed on DigitalOcean.
I created the back end with Django, Graphene, and a PostgreSQL database; the website with Next.js; the client front-end app with React and Apollo Client; and the Android app with React Native. The front-end code is hosted on Netlify, and the back-end infrastructure is deployed on DigitalOcean.
Learning Modules Site
https://learn.evidencebasedmarketing.ca/I future-proofed the application and significantly increased the developer experience by at least a factor of 10 by upgrading from the existing @nrwl package to the latest @nx package and also upgrading React from version 17 to 19, along with all installed packages.
I changed the bundling system to the latest version of Vite and employed optimization techniques such as lazy loading, which improved website performance by over 200% and SEO by over 150%. User interaction also increased after I engineered a new look and feel and enhanced mobile responsiveness. Finally, I provided technical advice on including different sponsorship levels in the application and implemented the same in the app as an additional stream of income for the client.
I changed the bundling system to the latest version of Vite and employed optimization techniques such as lazy loading, which improved website performance by over 200% and SEO by over 150%. User interaction also increased after I engineered a new look and feel and enhanced mobile responsiveness. Finally, I provided technical advice on including different sponsorship levels in the application and implemented the same in the app as an additional stream of income for the client.
Autumn AI | Mental Health Management App
https://getautumn.comAutumn AI is an early-stage startup based in Canada working on the future of preventative mental healthcare.
The Autumn AI app helps HR, managers, and business owners manage employee mental health to prevent burnout and the resulting turnover and associated business costs.
The Autumn AI app helps HR, managers, and business owners manage employee mental health to prevent burnout and the resulting turnover and associated business costs.
Mobile Flashcards
https://play.google.com/store/apps/details?id=com.chidimo.mobileflashcards&pcampaignid=web_shareA mobile application for creating flashcards, with a built-in quiz function.
It is built with React Native and TypeScript and uses AsyncStorage for data persistence. Users can also export a flashcard and have another user import it into their phone.
It is built with React Native and TypeScript and uses AsyncStorage for data persistence. Users can also export a flashcard and have another user import it into their phone.
Educational Materials Marketplace
https://www.teachshare.com/TeachShare is the world’s largest platform for personalized learning, enabling educators worldwide to create learning content and share it for free or with a fee.
Using SolidJS for the first time, I built the MVP of the app marketplace, achieving zero blocking time, 90% performance, and 100% SEO, as reported by Lighthouse.
Using SolidJS for the first time, I built the MVP of the app marketplace, achieving zero blocking time, 90% performance, and 100% SEO, as reported by Lighthouse.
Usepass
Usepass is a Softcom product that provides a solution for organizations to control time and access to their buildings, offices, and apartments. With Usepass, organizations can create, authorize, and share digital identity cards. I developed highly responsive and pixel-perfect UIs and components for the client application.
Koya Schools LMS
Koya is the Softcom LMS built for schools and organizations to manage student and employee learning. As the lead front-end developer of the admin app and co-developer of the learner app, I developed highly responsive and pixel-perfect UIs and components. I also conducted physical and online onboarding and training exercises.
TestX
I built the Android app for the testX platform developed by Traindemy. The app is being developed as the educational testing platform of the 21st century to be used remotely. I was the lead front-end and mobile developer using React Native. The app and its sister site helped the team secure a $5,000 AWS credit at a startup fare.
Education
2006 - 2010
Bachelor's Degree in Petroleum Engineering
University of Benin - Benin City, Edo State, Nigeria
Certifications
JULY 2022 - PRESENT
React Bridge Program
TopTal
DECEMBER 2021 - PRESENT
Certified Lean Six Sigma White Belt
Advanced Innovation Group Pro Excellence (AIGPE)
NOVEMBER 2021 - PRESENT
Apollo Graph Developer - Associate
Apollo Graph Inc. Odyssey
APRIL 2019 - PRESENT
React Nanodegree
Udacity.com
DECEMBER 2018 - PRESENT
Web Application Development with JavaScript and MongoDB
Coursera
OCTOBER 2018 - PRESENT
Responsive Website Basics: Code With HTML, CSS, and JavaScript
Coursera
OCTOBER 2018 - PRESENT
Responsive Web Design
Coursera
Skills
Libraries/APIs
React, React Redux, REST APIs, Redux Persist, Django ORM, Node.js, React Query, Chart.js, ApexCharts.js, Context API, React Router, React Testing Library, JSON API, DigitalOcean API, jQuery, Google Maps API, SolidJS, Stripe Connect API, Google API, Mantine, Framer Motion
Tools
React Apollo, JSX, Figma, Prisma, Git, Babel, GitLab, Shadcn, Knex.js, Vitest, Webpack, Google Sheets, Jira, Graphene, Expo
Languages
JavaScript, Python, GraphQL, HTML5, CSS, TypeScript, HTML, ECMAScript (ES6), SCSS, Sass, CSS3, SQL
Frameworks
Django, React Native, Next.js, Redux, Express.js, Tailwind CSS, Material UI, Cypress, Flask, Jest, NestJS, WebApp, Angular
Paradigms
REST, Test-driven Development (TDD), Responsive Web Design (RWD), Unit Testing, API Architecture, Database Design, Six Sigma, UX Design
Platforms
Vercel, Visual Studio Code (VS Code), DigitalOcean, Docker, Firebase, Heroku, Android, Azure
Storage
JSON, Databases, PostgreSQL, MySQL, Amazon S3 (AWS S3), Redis, Database Management, MongoDB
Industry Expertise
Scientific Research, Petroleum Engineering, Lean Six Sigma
Other
Learning Management Systems (LMS), Front-end, Full-stack, UI Development, APIs, Web App Development, Web Development, Architecture, RESTful Web Services, JSON REST APIs, Apollo, Front-end Architecture, User Interface (UI), CI/CD Pipelines, Front-end Development, Axios, Front-end Design, Responsive Web Apps, Minimum Viable Product (MVP), User Experience (UX), Data Visualization, UI Components, Pixel Perfect, Full-stack Development, Responsive UI, ESLint, Progressive Web Applications (PWAs), API Integration, Vite, Charts, Dashboards, Single-page Applications (SPAs), Ajax, Tailwind UI, Figma to React, Application State Management, Back-end, Storybook, Mobile App Development, Artificial Intelligence (AI), WebSockets, Gunicorn, Analytics, Kinde, Web3, UI Testing, Large Language Models (LLMs), Agentic AI, Lean Project Management, Lean, OpenAI, Wagtail CMS, Machine Learning, Machine Learning (ML) APIs
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