
Ugochukwu Nneji
Verified Expert in Engineering
Software Developer
Abuja, FCT, Nigeria
Toptal member since July 26, 2021
Ugochukwu is a seasoned full-stack developer with 7+ years of industry experience building robust and high-performance web applications. His expertise is mainly in TypeScript, Ruby, Python, and React frameworks. Ugochukwu is also skilled in product design which enables him to seamlessly bridge the gap between design and engineering.
Portfolio
Experience
- JavaScript - 7 years
- React - 7 years
- TypeScript - 7 years
- Node.js - 7 years
- Software Development - 7 years
- Next.js - 5 years
- Ruby - 4 years
- Ruby on Rails (RoR) - 4 years
Availability
Preferred Environment
MacOS, Visual Studio Code (VS Code), Postman, Git
The most amazing...
...tool I've developed is a real-time inventory monitoring dashboard for gas stations.
Work Experience
Co-founder and CTO
Billingrails Inc.
- Developed the core REST API for a variety of billing operations, including invoicing, subscription management, and payment gateway integration.
- Built an admin dashboard with developer tools to help customers integrate Billingrails into their own applications.
- Developed a customer-facing storefront and portal for checkout and subscription management.
Full-stack Ruby on Rails and React Developer
Pioneer Works, Inc.
- Built a new spreadsheet for running employee payroll.
- Tracked and fixed bugs to optimize application performance and improve user experience.
- Implemented high-quality, pixel-perfect user interfaces using React.
Software Engineer (via Toptal)
Splitgraph Inc
- Contributed to the development of a data query console (Splitgraph Console) for writing and running SQL queries on multiple datasets.
- Led the build of LLM-based autocompletion and natural language-to-SQL query features for the Splitgraph console query editor.
- Led the development and launch of a product blog and documentation pages, overseeing the entire process from planning to deployment.
- Refactored and optimized the codebase for a marketing website, resolving performance issues and enhancing accessibility.
Software Engineer
Suplias
- Led the design and development of an inventory and order management web application for back-office operations.
- Led the development of a loan management application that enabled retailers to apply for and receive loan disbursements.
- Contributed to the development of eCommerce PWA and mobile app used daily by 3,000+ retailers.
- Built integration with Shopify APIs to sync data between a legacy Shopify store and an admin back end.
- Mentored junior engineers and led technical interviews to support hiring and team growth.
Experience
Shelfie: Real-time Retail Store Insights
Fuel Intellisense: Real-time Dashboard for Filling Stations
Planit: Marketplace for Event Vendors
http://planit.ngToptal React Accelerator
Obtainly: Digital Lending for SMEs
https://obtainly.comInfodemics: Health Risk Communication
Wedding Cost Calculator
https://wedding-cost.vercel.app/Toptal Node.js Accelerator
Education
Bachelor's Degree in Computer Science
University of Cape Coast - Accra, Ghana
Certifications
Toptal Node.js Accelerator Graduate
Toptal, LLC
Toptal React Accelerator Graduate
Toptal, LLC
Skills
Libraries/APIs
React, Node.js, Stripe, D3.js, Chart.js, Sidekiq, Shopify API, Stripe API, REST APIs, Mapbox API, Google Maps API
Tools
Figma, CircleCI
Languages
TypeScript, JavaScript, Ruby, GraphQL, XHTML, CSS, Python
Frameworks
Next.js, Ruby on Rails (RoR), Tailwind CSS, Docusaurus, Remix, Django, NestJS, Redux, React Native
Paradigms
UI Design
Platforms
WordPress, WooCommerce, Amazon Web Services (AWS), Visual Studio Code (VS Code), Docker, Shopify, Heroku, Vercel
Storage
PostgreSQL, MongoDB, Redis
Other
Front-end Development, Product Design, Payment APIs, Fintech, Software Development, Artificial Intelligence (AI), FastAPI
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring