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Master I/o from our I/o tutors, mentors, and teachers who will personalize a study plan to help you refine your I/o skills. Find the perfect I/o tutor now.






I/o tutor
I'm a seasoned software developer with over 20 years of experience and I specialize in Mac and iOS application development, bolstered by a strong foundation in C/C++ and web/database technologies. I've effectively led diverse projects, enhancing performance and user experience, demonstrating adaptability across various tech domains. My background includes mentoring budding computer scientists and contributing to complex tech solutions. With a passion for continuous learning and problem-solving, I bring a unique blend of practical experience and innovative thinking to every project.
I/o tutor
A seasoned iOS Developer with 10 years of industry experience in working with teams spanning multiple timezones in software industry. Delivered 10+ production quality iOS apps including enterprise and startups. Hands on experience with cutting edge techs like Swift, Firebase, UIKit, SwiftUI, Foundation, Core Data, Core Location, Analytics, XCTest, XCUITest etc. Thorough knowledge of new generation design patterns like MVC, MVP, MVVM, MVVM-C, VIPER, Observer, Delegation etc. Work experience includes working on iOS apps and 3rd party libraries available through Cocoapods. Work domains like IoT, Medical Software, Workforce Management, Social Experience, E-Commerce, Education, Recruitment, Messaging, Remote Desktop and Security. Here are quick references of two of the apps I developed: **GetintheLoop** (https://apps.apple.com/ca/app/getintheloop/id833955114) **ArtMuseo** (https://apps.apple.com/us/app/id1472957118) My LinkedIn profile: https://www.linkedin.com/in/saurabhgupta02 My Github Profile: https://github.com/unleashedspeed
I/o tutor
Love making things animated and alive, be it simple button or text. Always pursue simplicity in everything I do.
I/o tutor
I'm a Web and JavaScript addict who have worked intensively with Angular and Node for three years (I have worked with JavaScript until 1999). I have worked for more than 15 years in Web environments mainly with Java server technologies and frameworks before. I really love to share my knowledge and help people to robust and well-designed applications and also to fix their issues. That's the reason why I used to contribute and help people on the StackOverflow website on subjects like REST, Angular and Node and write articles on my blog. I'm really excited at the moment about the orientations of JavaScript technologies (ES6, Angular2, React). Otherwise I used (and I enjoy!) to teach Web and JavaScript technologies in schools. I have done this for five years now. I work at the moment for a company targetting Web APIs and both located in France and in US so I used to speak English.
I/o tutor
Object-Oriented Design & Patterns Cluster Setup and Maintaining of HDFS, Spark, Kubernetes, ClickHouse Database Schema Design Data Transformation with Spark/ETL (Kettle) Query Optimization (14B rows query time reduced to <1 second) Linux (server management, port scanning, LVM) Report Development (BIRT) Cross-Platform App Development (Cordova) Agile Project Management (Scrum, Kanban) Teaching Experience at Academies 10+ Years in Foreign Companies (Technical Documentation & Communication)
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See the power of our I/o tutors through glowing user reviews that showcase their successful I/o learning journeys. Don't miss out on top-notch I/o training.
“Awesome Mentor! Enjoyed learning with him. He knows how to break code down and explain it in way that makes total since! The best so far!!“
Alix Field / Oct 2017
John Bargman
I/o tutor
“I struggled a lot with Leetcode and Dejan showed me how to study better and more efficiently. He showed me my gaps of understanding and gave me home practice to make the most of the sessions. He teaches really deep concepts but makes them easy to understand.“
Rikki W / Nov 2025
Dejan B.
I/o tutor
“I’ve been working with Jessamyn for over five years, and she’s absolutely incredible. Early in my career, I didn’t have a senior developer to learn from at my first job — Jessamyn has filled that role for me ever since. Her depth of knowledge and experience is outstanding, and she has a rare ability to explain complex concepts clearly and patiently. She’s not only a brilliant developer but also a truly gifted teacher. I can’t recommend her highly enough.“
Kevin Chambers / Nov 2025
Jessamyn Smith
I/o tutor
“Ashish is always very knowledgable on Cypress Automation and frameworks in general and has helped me tremendously in setting up frameworks and maintaining them. Highly recommend him for any of your IT needs.“
Nobel dastan / Nov 2025
Ashish Jaishwal (QA Test Automation)
I/o tutor


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Arrange regular session times with I/o tutors for one-on-one instruction.
Learning I/o 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:
The time it takes to learn I/o 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:
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.
The cost of finding a I/o 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:
To find the best rate, browse through our I/o 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.
Learning I/o with a dedicated tutor from Codementor offers several significant benefits that can accelerate your understanding and proficiency:
By leveraging these benefits, you can significantly improve your competency in I/o in a structured, supportive, and effective environment.
Personalized I/o mentoring through Codementor offers a unique and effective learning approach compared to traditional classroom learning, particularly in these key aspects:
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 I/o.
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