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K M Rakibul Islam
Paperclip tutor
US$35.00 /15 minExperienced (18+ years) developer and friendly Ruby on Rails and React/Next.js/Redux Developer/Mentor (with passion for helping others learn) | ★ 3,645+ 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 3,645+ 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 3,645+ 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!
- Paperclip
- Ruby on Rails
- Ruby
- AI
- API
- React
- JavaScript
- Heroku
- GraphQL
- Git
- RSpec
- PostgreSQL
- AWS
- MySQL
- Elasticsearch
- Stripe
- OmniAuth
- Redux
- Reverse Engineering
- Webpack
- React Native
- Sinatra
- Angular
- Ember.js
- Shopify
- Omniauth github
- Omniauth facebook
- Aws sdk
- Omniauth linkedin
- Cancancan
- Kaminari
- Factorygirl
- Active record
- Braintree
- Stripe ruby
- Jwt
- Active admin
- RSpec for Rails
- Rubocop
- Rails API
- Rails Console
- Railsadmin
- Stripe Payments
- Sidekiq
- Papertrail
- CanCan
- Delayed job
- Pundit
- Rails Asset Pipeline
- Bootstrap
- Test driven development
- Simple form
- Actionmailer
- Factory girl
- Carrierwave
- RubyGems
- Nokogiri
- Bundle
- Authorization
- Client server
- Amazon S3
- Devise
- Rails ActiveRecord
- OAuth
- OOP
- Security software
- New Relic
- Rails 4
- Auth
- Cache
- Es6
- OAuth 2.0
- Aws elastic beanstalk
- Database
- npm
- React Apollo
- Selenium
- Cloud Hosting
- Redis
- React Router
- BDD
- Elastic Load Balancer
- React rails
- MySQL Optimization
- jQuery
- AJAX
- SNS
- Amazon SNS
- Amazon EC2
- Git webhooks
- Git rebase
- GitHub Flow
- Git pullrequests
- Git branch
- Git flow
- GitHub
- Actovemodel serializer
- Jbuilder
- Grape api
- Grape
- Serialization
- Rspec2
- Rspec3
- Administrate
- Rails admin
- Rails migrations
- Rails 5
- Youtube data api
- YouTube API
- Capistrano
- Capybara
- Highcharts
- Web Development
- ChatGPT
- Pattern recognition
- Artificial Neural Networks
- LLM
- Machine learning
- Webhook
- Stripe api
- Heroku addons
- Bash
- Minitest
Brad Chase
Paperclip tutor
US$30.00 /15 minI believe the barrier to entry for many beginning developers is nailing down the fundamentals, and that's what I'm here to help with. The fundamentals aren't necessarily the hardest to grasp, but "unconscious competence" can often blind more senior developers to their existence. As a result, their explanation tends to be omitted from most tutorials, replaced instead with words like "just", "of course", and "trivially". I'm sure I've been guilty of these omissions myself, but when I have a mentee in front of me that's stuck, I'm dogged in my pursuit to identify where the gaps in their knowledge lie, and how to forever sew them shut. And because this road can be a long and difficult one, I also know that it helps to have a friend by your side through the journey; so more than just helping to navigate new concepts and technical issues, I want to serve as moral support for others who are now where I once was. Through the entire journey, but especially at the beginning, I think having this support can make or break, and I don't want to see anyone broken. As for me, I love learning languages, both programming and natural. When it comes to human languages, I can both read and converse in Japanese, but I'm currently focused on increasing my vocabulary in hopes of comprehending more complicated subject matter. In the world of programming, I love Ruby, tolerate JavaScript (*grin*), and am currently most interested in functional languages. Previously I had been using Elixir quite a bit, but at the moment ML-style languages like Haskell, Elm, and PureScript have been holding most of my attention. Things I'd particularly love to help you with include: * Haskell (getting started or exploring new concepts) * Elm and/or JavaScript (building in-browser applications) * Ruby (getting started or leveling up) * Rails (picking projects, implementing features, exploring libraries, etc.) * web development in general (front- or back-end) If any of this sounds like what you're looking for in a mentor, please don't hesitate to get in touch, even if you'd just like to chat. I'll be looking forward to hear from you!
- Paperclip
- Haskell
- Elm
- Ruby
- Ruby on Rails
- JavaScript
- HTML/CSS
- Heroku
- Elixir
- Linux
- Regex
- Assembly
- Prolog
- PureScript
- Google Apps Script
- Lisp
- PostgreSQL
- Ubuntu
- Zsh
- Bash
- Shell
- Node.js
- Otp
- Ecto
- Plug
- Channels
- Phoenix
- Cucumber
- Capybara
- RSpec
- Resque
- Unicorn
- Devise
- Haml
- jQuery
- Backbone.js
- React
- Redux
- Persistent
- Servant
- Stack
- Es6
- Active record
- MIPS
- Masm
- Clojure
- Racket
- Scheme
- Bootstrap
- CSS3
- Vim
- Debian
- Linux Mint
Ben Emma Chigbo
Paperclip tutor
US$15.00 /15 minI started programming with the Java language. I was writing desktop applications. Next, I added PHP to the stack with Laravel framework. Next, I picked up Ruby on Rails and loved it ever since. I have done a couple of projects (personal, open source and for organizations with teams). I have worked with Javascript and some of its libraries (React, Node, jQuery). I am good with git and version control and feel very confident approaching every merge conflict I encounter. Aside coding, I like listening to cool music, watching movies and tweaking the settings/preferences of tools I use. My favorite part of every application is the customization section. I also like artistic and creative works.
- Paperclip
- Ruby on Rails
- Ruby
- RSpec
- Node.js
- React
- Git
- jQuery
- HTML/CSS
- AJAX
- Es6
- Sequelize
- Rails 4
- Express.js
- Active admin
- GUI
- Interface Builder
- Markup
- Event handling
- DOM Manipulation
- Cherry pick
- GitHub
- Webpack dev server
- Webpack
- Redux
- Test driven development
- Mocking
- Testing
- Capybara
- Gem development
- Rubygem
- RubyGems
- Rack
- Sinatra
- Rack middleware
- Rails migrations
- Rails Asset Pipeline
- Rails ActiveRecord
- Rails 5
- Rails API
- Devise
- Digital signature
- Stripe
- Rubocop
- Factory girl
- Factorygirl
- Jbuilder
Dalibor Ilijevski
Paperclip tutor
US$25.00 /15 min
An experienced full-stack engineer passionate about building efficient and maintainable systems. With 20+ years of expertise in Ruby on Rails, PHP, and SQL, I thrive in tackling complex problems and implementing innovative solutions. My technical skills are complemented by a strong foundation in Python and modern web technologies like Stimulus and Tailwind CSS. You can find more details in my online CV at my [linked in profile](https://www.linkedin.com/in/daliborilijevski/) You can check my availability at my [Calendly page](https://calendly.com/dalibor-ilijevski/)
- Paperclip
- Ruby on Rails
- MySQL
- SQL
- PHP
- Database
- PostgreSQL
- SEO
- Python
- Pair Programming
- System Administration
- Ruby on rails3
- Agile
- Extreme Programming
- Project management
- Apt
- Debian
- Ubuntu
- Linux
- Zend Framework
- Query Optimization
- MySQL Optimization
- MySQL Administration
- Heroku
- Carrierwave
- Ruby
- Rubocop
- RubyGems
- RSpec
- Sidekiq
- Rvm
- RESTful API
- Querying
- Operating Systems
Nick Nguyen
Paperclip tutor
US$30.00 /15 minCurrently Engineering Manager for the Ecosystem Team at GitLab. Formerly a development manager and full-stack engineer with RotoGrinders, a leading daily fantasy sports website. As someone who switched to a career in software development in my late 20s, I'm passionate about helping others looking for their first developer jobs.
Dan Jensen
Paperclip tutor
US$25.00 /15 minI developed apps in Ruby on Rails, React and React Native for a startup. I am mentoring in same technologies. I've built a REST API in Ruby on Rails from scratch. I'm familiar with the gems Pundit (authorization), Devise/Omniauth (authentication), Active-Model Serializer, Rack-Cors, Paperclip (image on AWS), Braintree (payment provider) and others. I've web apps with React using Flux, Redux and ES6. I have contributed to Redux and held talks about Redux with React. I've more than +20 years experience in general software development and software project management.
Find your personal Paperclip tutor on Codementor today 
Users love our Paperclip tutors
See the power of our Paperclip tutors through glowing user reviews that showcase their successful Paperclip learning journeys. Don't miss out on top-notch Paperclip training.
“Brian helped me prepare for coding interviews at FAANG companies. He was knowledgeable, patient, and provided direct, constructive feedback. He shared valuable insights and guided me in the right direction when I made mistakes. Highly recommend!“
Kareem Washington / Feb 2025
Brian Young
Paperclip tutor
“Very patient, knowledgeable and understanding. We were appreciative of his insights. Best of all his on-demand available during U.S. working hours was mission critical. Having Rahul as a mentor was the best investment that we made in our businesses, empowering us to complete our project efficiently but most importantly learn the skills required to become self sufficient and self sustaining. Code Mentor is the best for mentors and freelance developers.“
Rhonda Coleman / Mar 2025
Rahul Choudhary
Paperclip tutor
“Umair helped me architect a web app in Next.Js with child applications in different frameworks. He showed in-depth knowledge of both Next and native javascript technologies that could help smooth the transition. He also had great recommendations for the backend services as well. He had opinions built on real-world experience that would steer me away from over-engineering while also provide the most powerful functionality for the app. Highly recommend!“
Nate May / Mar 2025
Umair Jameel
Paperclip tutor
“I had a fantastic mentoring session with Dejan. He demonstrated a deep understanding of Data Structures and Algorithms and, more importantly, shared valuable advice on how to effectively present my knowledge to the interviewer throughout the interview. I particularly appreciated his advice on the importance of jotting down notes about different approaches to solving the problem and the trade-offs of each, and how that could help me stay organized and make me stand out as an interviewee.“
Anirudh / Mar 2025
Dejan B.
Paperclip tutor
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We'll help connect you with a Paperclip tutor that suits your needs.
Find the most suitable Paperclip tutor by chatting with Paperclip experts.
Arrange regular session times with Paperclip tutors for one-on-one instruction.
Frequently asked questions
How to learn Paperclip?
Learning Paperclip effectively takes a structured approach, whether you're starting as a beginner or aiming to improve your existing skills. Here are key steps to guide you through the learning process:
- Understand the basics: Start with the fundamentals of Paperclip. You can find free courses and tutorials online that cater specifically to beginners. These resources make it easy for you to grasp the core concepts and basic syntax of Paperclip, laying a solid foundation for further growth.
- Practice regularly: Hands-on practice is crucial. Work on small projects or coding exercises that challenge you to apply what you've learned. This practical experience strengthens your knowledge and builds your coding skills.
- Seek expert guidance: Connect with experienced Paperclip tutors on Codementor for one-on-one mentorship. Our mentors offer personalized support, helping you troubleshoot problems, review your code, and navigate more complex topics as your skills develop.
- Join online communities: Engage with other learners and professionals in Paperclip through forums and online communities. This engagement offers support, new learning resources, and insights into industry practices.
- Build real-world projects: Apply your Paperclip skills to real-world projects. This could be anything from developing a simple app to contributing to open source projects. Using Paperclip in practical applications not only boosts your learning but also builds your portfolio, which is crucial for career advancement.
- Stay updated: Since Paperclip is continually evolving, staying informed about the latest developments and advanced features is essential. Follow relevant blogs, subscribe to newsletters, and participate in workshops to keep your skills up-to-date and relevant.
How long does it take to learn Paperclip?
The time it takes to learn Paperclip depends greatly on several factors, including your prior experience, the complexity of the language or tech stack, and how much time you dedicate to learning. Here’s a general framework to help you set realistic expectations:
- Beginner level: If you are starting from scratch, getting comfortable with the basics of Paperclip typically takes about 3 to 6 months. During this period, you'll learn the fundamental concepts and begin applying them in simple projects.
- Intermediate level: Advancing to an intermediate level can take an additional 6 to 12 months. At this stage, you should be working on more complex projects and deepening your understanding of Paperclip’s more advanced features and best practices.
- Advanced level: Achieving proficiency or an advanced level of skill in Paperclip generally requires at least 2 years of consistent practice and learning. This includes mastering sophisticated aspects of Paperclip, contributing to major projects, and possibly specializing in specific areas within Paperclip.
- Continuous learning: Technology evolves rapidly, and ongoing learning is essential to maintain and improve your skills in Paperclip. Engaging with new developments, tools, and methodologies in Paperclip is a continuous process throughout your career.
Setting personal learning goals and maintaining a regular learning schedule are crucial. Consider leveraging resources like Codementor to access personalized mentorship and expert guidance, which can accelerate your learning process and help you tackle specific challenges more efficiently.
How much does it cost to find a Paperclip tutor on Codementor?
The cost of finding a Paperclip tutor on Codementor depends on several factors, including the tutor's experience level, the complexity of the topic, and the length of the mentoring session. Here is a breakdown to help you understand the pricing structure:
- Tutor experience: Tutors with extensive experience or high demand skills in Paperclip typically charge higher rates. Conversely, emerging professionals might offer more affordable pricing.
- Pro plans: Codementor also offers subscription plans that provide full access to all mentors and include features like automated mentor matching, which can be a cost-effective option for regular, ongoing support.
- Project-based pricing: If you have a specific project, mentors may offer a flat rate for the complete task instead of an hourly charge. This range can vary widely depending on the project's scope and complexity.
To find the best rate, browse through our Paperclip tutors’ profiles on Codementor, where you can view their rates and read reviews from other learners. This will help you choose a tutor who fits your budget and learning needs.
What are the benefits of learning Paperclip with a dedicated tutor?
Learning Paperclip with a dedicated tutor from Codementor offers several significant benefits that can accelerate your understanding and proficiency:
- Personalized learning: A dedicated tutor adapts the learning experience to your specific needs, skills, and goals. This personalization ensures that you are not just learning Paperclip, but exceling in a way that directly aligns with your objectives.
- Immediate feedback and assistance: Unlike self-paced online courses, a dedicated tutor provides instant feedback on your code, concepts, and practices. This immediate response helps eliminate misunderstandings and sharpens your skills in real-time, making the learning process more efficient.
- Motivation and accountability: Regular sessions with a tutor keep you motivated and accountable. Learning Paperclip can be challenging, and having a dedicated mentor ensures you stay on track and continue making progress towards your learning goals.
- Access to expert insights: Dedicated tutors often bring years of experience and industry knowledge. They can provide insights into best practices, current trends, and professional advice that are invaluable for both learning and career development.
- Career guidance: Tutors can also offer guidance on how to apply Paperclip in professional settings, assist in building a relevant portfolio, and advise on career opportunities, which is particularly beneficial if you plan to transition into a new role or industry.
By leveraging these benefits, you can significantly improve your competency in Paperclip in a structured, supportive, and effective environment.
How does personalized Paperclip mentoring differ from traditional classroom learning?
Personalized Paperclip mentoring through Codementor offers a unique and effective learning approach compared to traditional classroom learning, particularly in these key aspects:
- Customized content: Personalized mentoring adapts the learning material and pace specifically to your needs and skill level. This means the sessions can focus on areas where you need the most help or interest, unlike classroom settings which follow a fixed curriculum for all students.
- One-on-one attention: With personalized mentoring, you receive the undivided attention of the tutor. This allows for immediate feedback and detailed explanations, ensuring that no questions are left unanswered, and concepts are fully understood.
- Flexible scheduling: Personalized mentoring is arranged around your schedule, providing the flexibility to learn at times that are most convenient for you. This is often not possible in traditional classroom settings, which operate on a fixed schedule.
- Pace of learning: In personalized mentoring, the pace can be adjusted according to how quickly or slowly you grasp new concepts. This custom pacing can significantly enhance the learning experience, as opposed to a classroom environment where the pace is set and may not align with every student’s learning speed.
- Practical, hands-on learning: Mentors can provide more practical, hands-on learning experiences tailored to real-world applications. This direct application of skills is often more limited in classroom settings due to the general nature of the curriculum and the number of students involved.
Personalized mentoring thus provides a more tailored, flexible, and intensive learning experience, making it ideal for those who seek a focused and practical approach to mastering Paperclip.
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