De-Great is available for hire
Hire De-GreatDe-Great Yartey
Verified Expert in Engineering
Front-end Developer
Accra, Greater Accra Region, Ghana
Toptal member since March 14, 2022
Bio
De-Great is a full-stack web developer expert at building accessible front-end experiences with React and scalable back-end REST services with Node.js. Recently, he has been experimenting on realtime collaboration projects and WebGL. De-Great's interested in working on collaborative software, educational and transportation projects.
Portfolio
Varsity Tutors
JavaScript, React, HTML, CSS, i18n, Jest, TypeScript, React Router, Selenium
Adeton
JavaScript, React, Next.js, Express.js, MongoDB, Kubernetes, DigitalOcean...
Ajuma
Flutter, React, Express.js, MongoDB, Sockets, Node.js, HTML, CSS, JavaScript...
Experience
- Full-stack - 5 years
- Node.js - 4 years
- React - 4 years
- JavaScript - 4 years
- Express.js - 3 years
- Next.js - 3 years
- MongoDB - 2 years
- Flutter - 2 years
Availability
Part-time
Preferred Environment
IntelliJ IDEA, Visual Studio Code (VS Code), Git
The most amazing...
...project I've led is an eCommerce SaaS which involved payment processing, delivery/maps handling and in-house site analytics using microservices architecture
Work Experience
Senior Front-end Engineer
2021 - PRESENT
Varsity Tutors
- Owned the design handoffs and implemented a performant front-end experience for a flagship product, Learning Lab.
- Reduced the production error margin by implementing end-to-end tests against staging using Selenium.
- Implemented internationalization support for English and Spanish. Also authored a script to ensure translations were not missed. This is added to the test script.
- Presented feature demos for my team during organization-wide presentations.
- Contributed to methods for improving social dynamics with colleagues due to the remote nature of the workplace.
Technologies: JavaScript, React, HTML, CSS, i18n, Jest, TypeScript, React Router, Selenium
Lead Founding Engineer
2021 - 2021
Adeton
- Led an engineering team of three through the design, planning, implementation, deployment, and launch of an MVP for this startup.
- Owned the architecture and authored tickets for team members. Also reviewed code and design.
- Handled DevOps with Kubernetes hosted on DigitalOcean.
Technologies: JavaScript, React, Next.js, Express.js, MongoDB, Kubernetes, DigitalOcean, Node.js, HTML, CSS, Jest, Full-stack
Full-stack Developer
2020 - 2021
Ajuma
- Switched API/back-end tech from Firebase to an in-house Express.js/MongoDB application with real-time capabilities, using Socket.IO.
- Re-vamped/re-designed old user interface for a mobile app into a clean user experience from scratch.
- Implemented a user wallet system to track transactions and payments. The design was to decouple wallets from the activities on the current platform, allowing Ajuma to build many other products around it.
Technologies: Flutter, React, Express.js, MongoDB, Sockets, Node.js, HTML, CSS, JavaScript, Webpack, Full-stack
Full-stack Developer
2017 - 2020
Makyoung Ltd.
- Worked on various products, including mobile apps, websites, dashboards, back ends, and API integrations for clients.
- Led client meetings through presentations and demos.
- Handled technical support for non-technical staff.
Technologies: Android, Kotlin, React, HTML, CSS, JavaScript, Full-stack
Experience
go-gurl | Testing Tool
https://github.com/blackmann/go-gurlAn open-source API testing tool written in Go: it runs in the terminal but has a persistent interface. The tool is the interception of curl and Postman. Notable distinctions from curl include bookmarking, URL aliasing, history navigation, etc. Also ships with handy commands to save results to a file and perform queries of JSON results.
Stylebender
https://stylebender.vercel.appA visual editor for composing CSS styles for your next web project. Using an intuitive UI, you can configure style properties and see how they'll look in real time right in the browser.
This saves a lot of time if you want to develop proof-of-concepts rapidly.
This saves a lot of time if you want to develop proof-of-concepts rapidly.
Mangobase
https://degreat.co.uk/mangobaseA low-code JavaScript back-end framework for Node.js and Bun. This framework allows the rapid development of RESTful applications by requiring none-to-less code.
It is designed to be server and database-agnostic so that you can use it with any server, like Express, Koa, Elysia, etc., or database, like Mongo, SQlite3, etc.
It is designed to be server and database-agnostic so that you can use it with any server, like Express, Koa, Elysia, etc., or database, like Mongo, SQlite3, etc.
Skills
Libraries/APIs
React, Sockets, Node.js, React Router
Tools
IntelliJ IDEA, Git, Webpack
Languages
JavaScript, HTML, CSS, TypeScript, Dart, Kotlin, Go
Frameworks
Next.js, Express.js, Flutter, Jest, Selenium, Tailwind CSS
Platforms
Visual Studio Code (VS Code), DigitalOcean, Kubernetes, Android
Storage
MongoDB
Other
Open Source, Full-stack, i18n, Bun
Collaboration That Works
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