Rem is available for hire

Rem Kim

Verified Expert in Engineering

Software Developer

Toronto, ON, Canada

Toptal member since March 23, 2022

Expertise

Web Development Integration UI Development Back-end Full-stack Development Front-end Prompt Engineering OpenAI GPT-4 API GitHub Node.js GPT-3 ChatGPT

Bio

Rem is a seasoned software developer with over a decade of experience spanning the fintech, eCommerce, and education sectors. An expert in crafting full-stack solutions, he can efficiently operate autonomously or as a pivotal team member. Rem is consistently proactive in sharing insights and contributing to team discussions.

Portfolio

Wealthsimple

Ruby, Ruby on Rails (RoR), Microservices, React, AngularJS, PostgreSQL, Agile...

Decision Accelerator LLC

Full-stack, React, JavaScript, CSS, Node.js, MySQL, Figma, English

Radiant Industries, Inc

TypeScript, React, Electron, Material UI, WebSockets, MTTQ, Charts, Performance...

Experience

Node.js - 9 years PostgreSQL - 7 years JavaScript - 7 years Ruby on Rails (RoR) - 4 years React - 4 years Docker - 4 years TypeScript - 2 years GraphQL - 2 years

Availability

Part-time

Preferred Environment

Visual Studio Code (VS Code), Agile, Scrum, Slack

The most amazing...

...I've built is resolveai.co, a no-code ChatGPT chatbot builder for FB, WhatsApp, and the web, made for business needs with a knowledge base from company docs.

Work Experience

Senior Software Engineer

2021 - PRESENT

Wealthsimple

Built an IP management microservice that handles IP ban and unban procedures, utilizing the Edge provider to perform blocks on the edge and the loadbalancer.
Worked on a device intelligence project to enhance the ability to track and prevent fraudsters from using bots, scripts, and virtual environments in conjunction with third-party vendors.
Enhanced auth history and provided customer support tools to view and analyze authentication attempts and resolutions.

Technologies: Ruby, Ruby on Rails (RoR), Microservices, React, AngularJS, PostgreSQL, Agile, Sprints, Full-stack, HTML, Front-end, CSS, Fintech, Git, API Integration, Vanilla JS, JSX, Responsive UI, User Experience (UX), User Interface (UI), Tailwind CSS, Web Development, SQL, Node.js, APIs, Software Design, Architecture, Leadership, Scalability, Integration, Scraping, Web Scraping, UI Development, React Native, Software Architecture, Front-end Development, Hosting, GitHub, RSpec, English

React/Full-stack Developer

2022 - 2023

Decision Accelerator LLC

Completed refactoring the previous React app using Material Design and Vite, leading the app to MVP readiness to show to executive clients.
Performed CMS integration for easy management of users and data using KeystoneJS and GraphQL.
Added Collaboration features to share and edit power page presentations with colleagues and leave comments and notes.

Technologies: Full-stack, React, JavaScript, CSS, Node.js, MySQL, Figma, English

React Developer

2022 - 2022

Radiant Industries, Inc

Worked on a web app to monitor nuclear reactor state.
Integrated the app with a charting library and tackled performance overheads when processing constant data streams from the reactor.
Added a Websocket and MQTT connection with a message broker to establish a constant data stream for monitoring.

Technologies: TypeScript, React, Electron, Material UI, WebSockets, MTTQ, Charts, Performance, User Experience (UX), User Interface (UI), Tailwind CSS, Web Development, SQL, Node.js, APIs, Software Design, Architecture, Leadership, Scalability, Integration, Scraping, Web Scraping, UI Development, Software Architecture, Front-end Development, Hosting, GitHub, English

Senior Software Engineer

2020 - 2021

Wonolo

Provided end-to-end solutions to migrate from Rails monolith to React using GraphQL.
Created user onboarding guides with visual guides aka "Tour de Wonolo," the hackathon winner project.
Built a payment service for flexible work hours adjustment.
Developed a hybrid navigation solution for Rails and React mix using iframe postMessage.
Improved global search performance and Salesforce synchronization.

Technologies: Ruby, Ruby on Rails (RoR), React, TypeScript, Next.js, PostgreSQL, Docker, HashiCorp, GraphQL, Full-stack, MySQL, HTML, Front-end, CSS, Git, API Integration, Vanilla JS, JSX, React Redux, Responsive UI, User Experience (UX), User Interface (UI), Web Development, SQL, Node.js, APIs, Software Design, Architecture, Leadership, Scalability, Integration, Scraping, Web Scraping, UI Development, Software Architecture, Front-end Development, Hosting, GitHub, RSpec, English

Full-stack Web Developer

2018 - 2020

Safyre Labs

Implemented a server-to-server communication API reducing the number of calls by 50%.
Implemented a single checkout API to process multiple types of payments.
Developed a tax API to fetch tax rates depending on location.
Built a UI modal React component, replacing old JQuery modals in the application.

Technologies: Ruby, Ruby on Rails (RoR), React, Styled-components, PostgreSQL, Docker, Docker Compose, Full-stack, MySQL, eCommerce, HTML, Front-end, Redux, CSS, Git, API Integration, Vanilla JS, JSX, React Redux, Responsive UI, SCSS, User Experience (UX), User Interface (UI), Web Development, SQL, Node.js, APIs, Software Design, Architecture, Leadership, Scalability, Integration, Scraping, UI Development, Software Architecture, Front-end Development, Hosting, GitHub, RSpec, English

Full Stack Software Engineer

2014 - 2018

RightLabs inc.

Worked on Flagship SPA using AngularJS and Laravel PHP framework.
Integrated different payment providers and exposed interfaces to use them.
Led development end to end. Starting from Backend REST API development to utilizing it on the client-side built with AngularJS.
Ensure software quality by accompanying code with corresponding tests.

Technologies: PHP, Laravel, MySQL, AngularJS, CSS, HTML, Git, API Integration, Vanilla JS, jQuery, Responsive UI, SCSS, User Experience (UX), User Interface (UI), Web Development, SQL, Node.js, APIs, Software Design, Architecture, Leadership, Scalability, Integration, Scraping, UI Development, Software Architecture, Front-end Development, Hosting, GitHub, English

Experience

SimplePages

https://www.simple-pages.com/

This project is a multitenant application that allows users to create server-side generated beautiful and responsive HTML webpages and templates by writing and reusing CSS components.

Main features include:
• Site manager UI
• Admin UI using Strapi
• Custom domain and custom subdomain
• Built-in TailwindCSS
• Out-of-the-box SEO
• News section and tools to update and add new content
• Unlimited sites and subdomains

CraftyMail

This is a web-based, no-code email builder that allows users to create beautiful email templates by utilizing a simple drag-and-drop functionality to rearrange blocks of images, text, and other tools. It was built with Next.js

RecommendMe

Introducing RecommendMe, the AI-powered recommendation and cover letter writer. Our platform helps job seekers stand out from the competition by automatically creating personalized, tailored recommendations and cover letters that showcase their unique skills, qualifications, and experience. We use artificial intelligence to generate and personalize recommendations and cover letters faster than ever, giving job seekers the edge they need to land the job of their dreams.

ResolveAI

https://resolveai.co

ResolveAI is a no-code platform for crafting ChatGPT-powered chatbots. Train your bot with custom documentation, integrate with APIs, and fully customize its persona. Build the ultimate AI assistant with unparalleled capabilities.

Education

2010 - 2014

Bachelor's Degree in Software Engineering

University of Central Asia - Bishkek, Kyrgyzstan

Skills

Libraries/APIs

React, Node.js, jQuery, React Redux, Stripe API, Stripe

Tools

Git, JSX, Prisma, GitHub, RSpec, Vim Text Editor, Docker Compose, HashiCorp, Slack, Figma

Languages

JavaScript, TypeScript, Ruby, SQL, HTML, CSS, Python, GraphQL, Sass, SCSS, PHP

Frameworks

Ruby on Rails (RoR), Next.js, Tailwind CSS, Vanilla JS, Redux, React Native, AngularJS, NestJS, Angular, Laravel, Electron, Material UI

Paradigms

Hosting, Agile, Microservices, Scrum

Platforms

Visual Studio Code (VS Code), Docker, Vercel, Heroku, Amazon Web Services (AWS), KeystoneJS

Storage

PostgreSQL, MySQL

Other

Front-end, Full-stack, Responsive UI, Web Development, APIs, Software Design, Architecture, Leadership, Scalability, Integration, UI Development, Software Architecture, Front-end Development, Back-end, Back-end Development, Full-stack Development, OpenAI GPT-4 API, Prompt Engineering, English, OpenAI GPT-3 API, Styled-components, Sprints, eCommerce, API Integration, User Experience (UX), User Interface (UI), OpenAI, Scraping, Web Scraping, Artificial Intelligence (AI), LangChain, Large Language Models (LLMs), Strapi, Fintech, Headless Commerce, SaaS, WebSockets, MTTQ, Charts, Performance, Monorepos, Vite

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