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Anupam Jain
VoIP tutor
US$30.00 /15 minA software engineer from the Silicon Valley, I have software engineering experience of 16+ years in US and India. Now based in India, I am the CTO and Founder at Saathi Re ([https://www.saathire.com](https://www.saathire.com/)), a large data analytics platform (used by thousands of users every week) to catalyse the social impact space in India. Also been serving as part-time CTO for two US companies More: * full stack web developer (core expertise in Django/Python, Bootstrap/CSS, JQuery/Javascript) * Past: co-built a parallel web at IBM Research for the underprivileged (Spoken Web) without the need of a smart phone or PC; technically led the rural electrification initiative at IBM Research to electrify rural parts of Brunei and India; project-managed national scale project at Dimagi to deploy mobile solutions for last mile workers, including software design reviews for Bill and Melinda Gates Foundation * multiple publications on 'tech for social impact'; 7 patents at USPTO; Master-Comp. Science (USC) * meditation practitioner for 15+ years and a certified Heartfulness meditation trainer
Jeremy Jackson
VoIP tutor
US$45.00 /15 minFullstack Application Developer for Laravel and NativeScript
IT Jedi AU
VoIP tutor
US$30.00 /15 min20+ years of experience working in WWF, Motorola, CXA, Westpac, and other logistic and financial companies and startups. 📱30+ apps in the AppStore. 😎10+ interviews with FAANG and 20+ with other startups and companies. 🤓Solid CS and Math background - Master Degree, Russia Federation. 🤝 Helping to prepare and pass FAANG interviews. 👍 Mentoring startups. Excellent English, experience in US, AU, SG, and KO startups. Co-founder of ThreadWeather and Tech Lead at JRB Technologies. Obj-C & Swift, strong in OOP/POP patterns, Jenkins CI, Auto-Layout, Responsive Design, GIT, RESTful API's, Multithreading, In-App purchases, Push Notifications, Firebase, Parse, Backendless, Google Analytics, AppCenter, Branch.io, AWS, Fabric, Facebook SDK, Instagram, Uber, Twitter, OAuth2, SSO... you name it 😊 When it comes to iOS development or interviews, I am your guy! I can help you to build a product your customers will ❤️. I'm here for you. Let's talk!
- VoIP
- Python
- Android
- Java
- C#
- C++
- C
- SQL
- Scala
- Node.js
- MySQL
- Git
- Database
- Xcode
- WinForms
- OOP
- HTTP
- Microsoft Access
- JDBC
- MVVM
- WebSocket
- Interface Builder
- App Store
- Parse.com
- Computer Science
- Scalability
- UX Review
- CocoaPods
- MVC
- Twilio
- Algorithm
- DI
- Scrum
- Startups
- Interview Skills
- JavaScript
- Objective-C
- Data structure
- Microsoft SQL Server
- Realm
- Microservices
- Swift
- Redux
- Fastlane
- iOS
- RxSwift
- Interview Preparation
- Agile
- High-Performance Computing
- WCF (Windows Communication Foundation) Service
- Mobile App Development
- Performance Optimization
- Solution Architecture
- RESTful API
- Security software
- Software architecture
- macOS
- AWS
Bilal Dar
VoIP tutor
US$15.00 /15 min20+ years experience managing infrastructure with Telco's and enterprises. Past 5 years have been focussed more on DevOps. Few DevOps related certs: AWS Certified (Architect | SysOps | Developer) Associate AWS Certified Security Speciality Google Cloud Certified - Professional Cloud Architect Google Cloud Certified - Professional Cloud Security Engineer Kubernetes Certified Administrator (CKA) Kubernetes Certified Application Developer (CKAD) My core area of expertise is real time communications (VoIP, Video, WebRTC etc), worked with open source and commercial vendors (Cisco, Avaya, Oracle) as well. 10+ years supporting infrastructure comprise of mainly Cisco gear (routers, switches, firewalls).
George Cook
VoIP tutor
US$18.00 /15 min
Hello! I'm [George Cook](https://www.linkedin.com/in/georgejecook/). I love engineering high quality code. I take great pride in my craft, and produce highly extensible and maintainable applications. I'm extremely good at refactoring apps - I'll get into that below; but if you're a serious organization, and your code is getting stale, or hard to work with, then getting you back on track is one of my specialties, and I'd love to help you! I'm really enthusiastic about Roku development in general : really - and I've got the goods to prove it :) ! Here's some of the things I've done/do: - Wrote a beautiful unit testing framework for brightscript developers, called [rooibos](https://github.com/georgejecook/rooibos) - it's based on Mocha, and it's awesome - I use it all the time to keep my productivity high and deliver quality code - Heavily contributed to the [Brightscript langage vscode extension](https://github.com/TwitchBronBron/vscode-brightscript-language/), which is the number 1 ide extension for roku developers - Shared navigation examples, and MVVM code in my public [navigation example](https://github.com/georgejecook/rokuNavSpike) - Wrote a logging framework, tailored to brightscript and roku development, called [rLog](https://github.com/georgejecook/rLog) - Wrote a lightweight processor, a bit like awk, just for brightscript, named [burp](https://github.com/georgejecook/burp) - Started the popular, and awesome [Roku developer slack group](http://tiny.cc/nrdf0y) Some of my Roku work ################# I've proudly delivered work for companies you know: - [Smithsonian Channel](https://www.smithsonianchannel.com/) - [Brightcove](https://www.brightcove.com/en/customers/hope-channel) - [Applicaster](https://www.applicaster.com/) - [Olypmic Channel](https://blog.roku.com/olympic-channel-on-roku-canada) - and others... My Roku experience includes ##################### - Application architecture - Full cycle development - Continuous integration, and professional build processes, leveraging gulp and other build systems, with jenkins/travis, etc - TDD development, and supporting patterns - Front end work, both general, framework and advanced UI components - Performance optimization - Integration with Roku and 3rd party authentication, and analytics such as: - Google IMA - Adobe AdMobile - RokuPay - Youbora analytics - Cleeng payment processing - Other 3rd party solutions - Custom video components and controls - Advanced analytics integrations - Graphql, json, XML, and RSS feed consumption - 4k, HLS and live streaming - Advanced application debugging - and more... Some of my other work ################# - I've done years of Xamarin development, pushing the envelope on cross platform performance, and had a [hugely successful blog series and cross platform library](https://github.com/georgejecook/xamarinFastCell) - AR/VR in Unity3d, for Oculus and Vive - I spent a year making a few VR games, like [The Incredible VR Gameshow](https://www.youtube.com/watch?v=UhM4qL31OuI) - iOS, I've done advanced objective c apps, making the worlds first [AR video editor](https://www.youtube.com/watch?v=5uBZa8v_vG8) (I made it way too early; but that's life :/ ), and a whole bunch of other realtime video, video players, imovie clones, amongst others - Worked in Banking, pharms, military over a 20 year career - Did almost a year doing full-stack js with a kafka-based micro-architecure, contracting to UnderArmour - Was a consultant for Adobe's own consulting group, specializing in Flex UX/Business processes/Design/Architecture/ ################################ - I've been involved in startups and huge organizations, on products and services - I've launched my own products - As such I've got a wide array of skills, and solid Software Development Principles and can successfully interact across a wide range of roles - Been working remotely for a decade, so I know how to get things done when not physically present - Take pride in training other's in the best Practices and Processes and teaching them how/why to be a Principled software engineer - Have a diverse set of software skills and have good level's in a broad range of languages Refactoring failing code bases/getting software back on track ############################################ I started coding when I was 6, 35 years ago. I'm as passionate now as I was then; but I've got a whole lot of acumen, and natural coding talent. That allows me to hold extremely large codebases in my head, even crazy-insane, poorly architected ones, and rewrite them over a few weeks. Over my career I built a solid name for being able to come into a project, understand the current code, identify the issues, and refactor the codebase, with low regression risk, while converting unmaintainable code bases to highly maintainable one's with solid patterns. I _love_ that kind of work as well - if you've got a project in dire straits, and don't want to lose a fortune; then take advantage of my experience, OCD and my wife's ability to let me disappear for a few 70 hour weeks: you will never regret it :D Let's talk! ####### I probably sound arrogant; but I want you to know what a great benefit I will be to you and your project - I offer a lot more besides these tidbits here. Why not ping me on mail/roku slack group/linked in, and we can further chat. I _really_ like people _and_ computer software and I work on every project as if it were my own: as far as I'm concerned; your success is my success. So [get in touch!](mailto:george@tantawowa.com), and let's see what I can do to help.
- VoIP
- Android
- Java
- XML
- Apache Flex
- Full Stack
- WebRTC
- React
- Consulting
- JavaScript
- Objective-C
- iOS
- C#
- Node.js
- JSON
- Xcode
- Cocoa Touch
- OOP
- Unit Testing
- Generics
- Animation
- Cocos2d
- Xamarin
- Underscore.js
- NuGet
- npm
- CocoaPods
- 3D Graphics
- Mocha
- Game
- Es6
- Game Design
- Apache Kafka
- Microservices
- SOLID Principles
- VR
- tvOS
- Async.js
- Mobile App Development
- AR
- Vrtk
- Unity
Artur D
VoIP tutor
US$30.00 /15 minDevOps Engineer, building things I’m proud of. I enjoy solving problems and always try to come up with creative solutions. One of my core beliefs is: “Leave the campsite better than you found it.” and due to this I always tend to drive change for the better, wherever I go.
Find your personal VoIP tutor on Codementor today 
Users love our VoIP tutors
See the power of our VoIP tutors through glowing user reviews that showcase their successful VoIP learning journeys. Don't miss out on top-notch VoIP training.
“I had a complicated build and versioning issue that was blocking progress, and this developer absolutely nailed it. He quickly understood the problem, diagnosed it with precision, and delivered a clean, working solution. Super professional, highly skilled, and clearly knows his stuff. Total pro — would 100% work with him again. 🔥👏“
Brian Gioia / Jun 2025
Johnny B. (Ionică Bizău)
VoIP tutor
“Richard is an excellent codementor. In just one hour, he clarified a couple of fundamental programming concepts about AI and applications in the programming that have confused me for a month. I'm going to ask him a lot of questions so I can learn. You should too.“
bryan byrne / Jun 2025
Richard Bailey
VoIP tutor
“Intro call for a personal project of mine went very well. It is evident he is a professional, answered my questions clearly and gave good advice and was easy to talk to. I talk in lots of circles and tangents but he was able to link back to previous points and follow and expand the picture. I would recommend.“
Jonathan / Jul 2025
Olamide Soyoye
VoIP tutor
“Lucas did an amazing job helping me with my problem. I got completely turned around debugging the issue for two days and I thought I tried everything. In the end, we tried the same everything, but more calmly, and there it was, problem identified. I can now move on to fixing it. But in the meantime, I also want to mention that it was great pleasure chatting with Lucas. His English is perfect, his technical knowledge is broad, his manner is pleasant, and he didn't talk down to me. I almost hope I'll have another problem to ask him about...“
Martin Vlach / Jul 2025
Lucas Meine
VoIP tutor
How to find VoIP tutors on Codementor
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We'll help connect you with a VoIP tutor that suits your needs.
Find the most suitable VoIP tutor by chatting with VoIP experts.
Arrange regular session times with VoIP tutors for one-on-one instruction.
Frequently asked questions
How to learn VoIP?
Learning VoIP 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 VoIP. 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 VoIP, 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 VoIP 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 VoIP through forums and online communities. This engagement offers support, new learning resources, and insights into industry practices.
- Build real-world projects: Apply your VoIP skills to real-world projects. This could be anything from developing a simple app to contributing to open source projects. Using VoIP in practical applications not only boosts your learning but also builds your portfolio, which is crucial for career advancement.
- Stay updated: Since VoIP 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 VoIP?
The time it takes to learn VoIP 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 VoIP 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 VoIP’s more advanced features and best practices.
- Advanced level: Achieving proficiency or an advanced level of skill in VoIP generally requires at least 2 years of consistent practice and learning. This includes mastering sophisticated aspects of VoIP, contributing to major projects, and possibly specializing in specific areas within VoIP.
- Continuous learning: Technology evolves rapidly, and ongoing learning is essential to maintain and improve your skills in VoIP. Engaging with new developments, tools, and methodologies in VoIP 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 VoIP tutor on Codementor?
The cost of finding a VoIP 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 VoIP 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 VoIP 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 VoIP with a dedicated tutor?
Learning VoIP 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 VoIP, 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 VoIP 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 VoIP 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 VoIP in a structured, supportive, and effective environment.
How does personalized VoIP mentoring differ from traditional classroom learning?
Personalized VoIP 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 VoIP.
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