Mark TellezMark Tellez

Codementor2014 - 2020

Senior Developer & Mentor
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Highlights

  • Earned nearly 500 five-star reviews from clients worldwide
  • Helped thousands of developers with Ruby on Rails, ReactJS, and JavaScript
  • Developed a reputation for exceeding client expectations
  • Gained deep insights into consulting business management
  • Transitioned to entrepreneurship with DevmentorLive
  • Worked with diverse clients across industries and technical backgrounds

Introduction

I transitioned from YouTube to Codementor during the platform's peak success, spending nearly 6 years helping thousands of students, developers, and companies build software using Ruby on Rails, ReactJS, and JavaScript.

Client-Focused Development

During my time at Codementor, I accumulated almost 500 five-star reviews—a remarkable achievement considering how rarely clients leave reviews. This experience taught me invaluable lessons about service, as I worked directly with clients rather than reporting to managers disconnected from the end results.

I consistently went above and beyond expectations to serve real humans with real desires and real challenges. This direct client interaction provided insights into user needs that traditional employment structures often obscure.

Key Accomplishments

Earned nearly 500 five-star reviews from clients worldwide

Helped thousands of developers with Ruby on Rails, ReactJS, and JavaScript

Developed a reputation for exceeding client expectations

Business Insights

Despite taking a significant pay cut compared to traditional software engineering roles, I found this period immensely rewarding. The experience provided deep insights into running a consulting business, managing client relationships, and delivering value directly to end users.

Working with diverse clients across various industries and technical backgrounds enhanced my ability to communicate complex concepts clearly and adapt my teaching approach to different learning styles.

Entrepreneurial Transition

When Codementor was acquired by new owners and the platform began to deteriorate, I recognized an opportunity to take control of my future. This led me to found DevmentorLive, where I could apply all the lessons learned from my years of mentoring while building a business aligned with my values and vision.

This transition from platform-based mentoring to entrepreneurship represented a natural evolution of my career, allowing me to continue serving developers while creating a sustainable business model.

To Resume