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Hello! My name is David Kang, and I am a seasoned full stack web and mobile app developer with over 10 years of experience. My expertise spans from working as a DevOps Manager on small business apps to developing enterprise-scale web and mobile platforms for major companies. Areas of Expertise: CMS Platforms: - WordPress / WooCommerce / Shopify Front-end Development: - Vue.js / Nuxt.js / Angular.js / React.js / Next.js Back-end Development: - Node.js / Express.js - Python / Django - PHP / Laravel / CodeIgniter - Ruby / Ruby on Rails Mobile Development: - React Native / Flutter / Objective-C / Java Enterprise Solutions: - C# / ASP.NET / .NET Core / Unity Cloud Services: - AWS / Azure / Google Cloud Databases: - Firebase / MongoDB / MySQL / PostgreSQL I am committed to delivering high-quality solutions tailored to your specific needs. Whether your project is in the early stages of discovery or fully underway, I can help you refine your ideas and build the application you deserve. If you have a project or an idea you'd like to discuss, let's talk! I'm here to help you bring your vision to life.
*****General profile***** Hello! ex-Amazon engineer here. I have 5+ yoe in fullstack development and 1.5 yoe in AI engineering (JS and Python) I have both worked at startups building products from the ground up and big tech building large-scale distributed systems. With my unique blend of fullstack and AI expertise, I'm confident I can bring your next product to success! *****Tutor profile***** As an ex-Amazon engineer, I came from a non-CS background and eventually broke into big tech. I have also conducted numerous interviews at Amazon, so I know the secret to cracking the coding interviews. With a solid coverage of DSA fundamentals and uniquely curated list of questions from past FAANG interviews, many of my students were able to land jobs at FAANG companies. So whether you are a student or a seasoned engineer, I'm happy to help you land your next dream school/job! I'm currently an independent AI researcher offering tutoring with a part-time capacity at a discounted rate! Therefore, this opportunity may not be long! *****Tech stacks***** Proficient in Python, JavaScript, React, Vue.js, MySQL, PostgreSQL, MongoDB, PyTorch, Scikit-Learn, AutoML,OpenAI, LLM, Langchain, RAG. Look forward to collaborating with you!
Experienced (18+ years) developer and friendly Ruby on Rails and React/Next.js/Redux Developer/Mentor (with passion for helping others learn) | ★ 3,640+ 5 ★ sessions/jobs. 9+ years on top of the Codementor Ranking ★ https://www.codementor.io/ruby-on-rails-experts I am a Senior Software Engineer from Toronto, currently working as a Ruby on Rails and React/Redux Developer at theScore Inc. I am passionate about helping and mentoring people, especially those who are new to web development and the programming world. I am specialized in explaining the core concepts of Ruby and Rails, Javascript, React, APIs and everything else along with the best practices. I focus on the learning experience of my students and make sure they get exactly what they want. I have excellent academic track records (Bachelor of Science in Computer Science and Masters in Computer Engineering from the University of Toronto) along with strong development and industry experience in Software Development and Web Development (18+ years coding experience in total). I have helped more than 800 individuals here at CodeMentor (with 3,640+ 5 ★ sessions) with their projects implementation, bug fixes, architecture advices, performance improvements etc. I have worked with a bunch of CEOs and CTOs of YC start-ups and helped them with their projects. Made long term relationships with many of them which I help in a regular basis today. I have helped a ton of bootcamp students here at CodeMentor and helped them build their web development career path and getting jobs after the completion of their bootcamp cohorts. Here at CodeMentor, I have helped people from all levels: From someone who is brand new to programming to 30+ years of experienced Senior Software Engineers, Product Managers and everyone in between. It's been an amazing journey here at CodeMentor for the last 8+ years! :-) I started programming and solving problems in 2006, at the age of 18. Since then, I wrote programs in a variety of programming languages such as C, C++, Java, PHP, Ruby, Python, Javascript, etc. These days, I use Ruby and Rails and React JS as my primary programming languages and frameworks. I can help with debugging your issues as well as refactoring your code according to the best practices and conventions out there. Helping people is my passion and motto in life. If you think I can help you in any way, please get in touch! Specialties: * Building scalable and performant backend APIs in Ruby on Rails (Active Model Serializer, GraphQL, Grape, Jbuilder, RABL, etc.) for android, iPhone or web applications. (For more than 12 million users). * Integration of backend APIs with Javascript frontend framework (ReactJS) using JSON Web Token (JWT). * Built highly scalable Push Notification System for theScore sports application (For ~10 million users). * Implemented instant player, team and news article search for the theScore and theScore eSports apps which have more than 6 million monthly active users using ElasticSearch and Rails. * Backend Ruby on Rails Development (With scaling, performance optimizations, database query optimizations, caching best practices, etc.). * Test Driven Development with clean code and best practices. * Web Scraping (Nokogiri, Mechanize) (Scrape data from anywhere on the internet!). * Reverse engineering complex APIs and web applications to write automated scripts to mimic and automate user behaviour and extract required data. * Explain concepts/solutions clearly and concisely according to the level of the client/student. (Helped over 800 people on CodeMentor with 3,640+ 5 ★ sessions) * Giving architecture advice for your application. Explain which tools/gems to use and why. * Setting up SSL certificates for Rails application (Nginx server) on AWS EC2 instance and securing your application. * Suggesting best practices and focusing on the best learning experience and long-term achievements. * Showing cool tips and tricks that I have learned over the past 18+ years (and still learning!) as a professional Ruby on Rails developer to be more productive and efficient at work. * Upgrading Ruby/Rails versions for your existing application. * Finding bottlenecks and Optimizing performance for your slow Rails applications. * I can help you to prepare for interviews for Ruby on Rails developer position, or any other Software Development position. I have successfully guided many developers who got their dream jobs after practicing coding interviews with me!
I'm a full stack software engineer, technical writer and computer science educator. I enjoy testing, debugging, refactoring, application design, maintaining projects and teaching. My primary technologies are JavaScript, React, Express (PERN stack), Playwright, Puppeteer, Python, Flask and C. See my [Stack Overflow tags](https://stackoverflow.com/users/6243352/ggorlen?tab=tags) for more technologies ordered roughly by my interest and experience. In addition to Stack Overflow, I'm active on [Code Review Stack Exchange](https://codereview.stackexchange.com/users/171065/ggorlen). Feel free to peek at a few of these reviews to get a sense of the insights I can offer your code. For further information, visit my [Codementor FAQ](https://ggorlen.glitch.me/codementor). I'm looking forward to hearing about your project! _<sub>Profile picture by the wonderful [Emily Huston](https://emilyhuston.github.io) ❤️</sub>_
I’m a full-stack developer with over 10 years of experience, passionate about integrating agile principles into both my professional and personal life. I thrive on solving complex problems, leveraging my expertise to drive meaningful change. Previously, I served as a Tech Lead and Senior Software Engineer at Flow and contributed to various projects at IBM, collaborating with clients in the banking, retail, and small business sectors. I’m a coffee enthusiast, avid traveler, and dedicated to making a positive impact in the world—one step at a time.
I am a freelance web developer working out of India. My weapons of choices are : HTML, CSS, Javascript, SQL, Ruby, Ruby on Rails, React JS. I literally spend as much hours as possible every day on coding.
I believe that every problem has a definite solution if one takes the time to understand the problem. I apply this philosophy in my everyday life especially in the code I write.
"Whoever travels without a guide needs 200 years for a two-day journey." Whether you're just starting out on the journey to becoming a great coder, or whether you're somewhere in the middle and you just got stuck, don't let it hold you back longer than necessary. I have over 8 years of experience with multiple software stacks. I started on Java with Spring Framework, then switched to Ruby on Rails. These days I work mostly with Node.js and CoffeeScript. I've worked with 4-person startups, billion dollar companies and everything in between. My goal is to get your issue resolved as quickly as possible, and give you all the tools and knowledge necessary to *understand* why you had this issue, and how to prevent it going forward.
I am an experienced web and mobile application developer with more than 4 years experience with client projects. I have participated in developing quality grade software for varying range of clients. I have keen interest in problem solving and software debugging. I also managed a software development team to deliver client software for a few projects. I am a lover of good code and standard software development practices (TDD, SOLID, etc).
Passionate full-stack Ruby on Rails and smart contract developer with 5 years of experience. Strong background in the development of internal systems that allow businesses to orient their operations around digital documents rather than physical ones. I have 5 years of experience in **Ruby on Rails**, **JavaScript**, **PostgreSQL**. I specialize in enterprise-level **Code Reviews** and **Integration testing**. As well as I have worked with technologies like: * Test-driven development * RSpec testing framework * Capybara feature testing framework * Jest * REST APIs * Redis database * Docker * jQuery * StimulusJS * Turbo.js, Hotwire * React
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