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\- Debugging / Deployment / Annoying app dev issues – I love a good challenge 🛟 [https://www.richdackam.com](https://www.richdackam.com) Become a Cursor AI Expert [https://www.youtube.com/@codewithrich](https://www.youtube.com/@codewithrich) Want to learn how to build with AI? [https://joinaifounders.club](https://joinaifounders.club)
**Full-Stack Software Engineer** * Software engineer with 10+ years of experience building full-stack MVPs and APIs, mostly in Ruby on Rails * A bunch of experience with React, jQuery and vanilla JavaScript **Data Science** * Experienced in data science (both in R and Python) * MS in Analytics from Georgia Tech * Experienced in numpy/pandas, regression, classification, and other machine learning models For bigger projects, I have experience leading dev teams (including designers) and being a product manager.
_Full-Stack Web Application Developer & SaaS/PaaS Product Architect with engineering leadership over distributed, remote, offshore, and onsite teams of front-end coders and back-end developers._
I started my programming career creating line of business applications for investment banks and slowly transitioned into web development roles working with Ruby on Rails and Elixir/Phoenix. I have experience working on high-profile web apps serving millions of active users and also smaller websites with modest traffic but terrific revenue. For the past eight years, I've been working remotely for American companies, mainly doing web development and playing tech-lead roles in several projects. I'm used to working with founders and CTOs, going from Plan A to Plan B to a plan that works. I've helped companies build MVPs, scale projects, and maintain large-scale systems handling millions of requests a day. I'm comfortable doing code reviews and pair programming sessions. These are some web apps I've worked on in the past couple of years: * [Canary Data (Elixir/Phoenix - React)](https://canary-data.com/) * [Blitz (Elixir/Phoenix)](https://blitz.gg/) * [Superkind (Elixir/Phoenix)](https://www.linkedin.com/company/superkind) * [About Fresh (Elixir/Phoenix)](https://aboutfresh.org/) * [AR Workflow (Ruby/Rails - Node.js)](https://arworkflow.com/) * [SnapCell (Ruby/Rails)](https://snapcell.us.com/) * [Walkboard (Python/Django)](https://www.walkboard.com/) * [Sky Sports (Node.js - Python)](https://www.skysports.com/football) I wrote [Data Structures From Scratch](https://www.amazon.com/gp/product/B07MZZT6SW), an ebook about creating essential, advanced, and persistent data structures using the Ruby programming language. I live in Buenos Aires (UTC-3) with my wife and beautiful son. If you made it this far, please check out [my resume](https://alemiralles.dev/alemiralles-resume.pdf) for a detailed version of what I've been doing. Thank You!!
I am a Mobile and Web Developer with expertise in Django, Rails and many more technologies. I love challenging projects and learning new things. in 2014, I was the Lead Developer for a realtime Django project with Pythonic implementations of [socket.io](http://socket.io/), postgresql, and angular.js. I currently own the web and mobile development agency https://tecmanic.com, where we distribute flutter pre-made applications and design from scatch applications for our clients. I also have experience with other tools like fabric, capistrano, chef and all system administration tasks.
Full stack web developer
With over a decade of experience in full-stack development, I specialize in **Ruby on Rails, custom eCommerce solutions** (Spree, Solidus), **ReactJS**, and **DevOps**. My expertise spans designing and developing scalable, distributed cloud-based applications with a strong foundation in **database architecture** and **system refactoring**. As a technology leader, I’ve successfully delivered complex, high-impact projects across industries including **Real Estate, Finance, Healthcare, Marketing**, and **eCommerce**. My portfolio includes building sophisticated eCommerce marketplaces, **SaaS platforms**, and multi-channel selling applications. I am passionate about crafting innovative, robust software solutions tailored to meet diverse business needs. **Key Expertise:** - **Backend:** Ruby on Rails, building and scaling RESTful APIs. - **Frontend:** ReactJS, JavaScript, responsive UIs with Tailwind CSS, and Bootstrap. - **eCommerce Solutions:** Spree, Solidus, custom marketplaces, multi-tenant SaaS platforms. - **Database Architecture:** MySQL, PostgreSQL, MongoDB, Redis, Cassandra, optimized for high performance and scalability. - **DevOps:** CI/CD pipelines (CircleCI, AWS Pipeline), containerization (Docker), cloud platforms (AWS, GCP, Heroku, DigitalOcean). - **Test-Driven Development:** Expertise in TDD using RSpec, ensuring high code quality and maintainability. In addition to my technical expertise, I have a strong commitment to **open-source contributions** and have developed multiple **Ruby/Rails/Spree extensions**. I also bring a wealth of experience in **refactoring legacy code bases**, implementing **performance optimisation**, and improving **scalability** and **security**. My passion lies in helping businesses unlock their full potential through technology, and I am always eager to collaborate on long-term, impactful projects. Let’s build the future, one line of code at a time. Best regards, Rahul Singh
Experienced (18+ years) developer and friendly Ruby on Rails and React/Next.js/Redux Developer/Mentor (with passion for helping others learn) | ★ 3,655+ 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 3,655+ 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 LOT 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 3,655+ 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 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'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>_
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