$240 / month
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Catalin is a Tech Lead and Development Manager. He has more than 20 years of full-cycle software development experience, with a focus on software architecture and design. He helps web developers build projects from scratch, improve their C# and .NET skills, and prepare for interviews or career moves.
Based on 21 verified mentee reviews
Tech Lead / Senior software engineer with 20+ years in full cycle development, dedicated to mentoring growth.
Throughout my career, I have honed my skills in software architecture, design, and development while working on a wide range of projects for clients such as startups, established businesses, and large corporations.
My areas of expertise include C# .NET, Web API, AWS, PostgreSQL, Angular, TypeScript, JavaScript, Software Design and Architecture and more. As a passionate mentor and leader, I have consistently guided and trained team members, helping them grow and excel in their careers.
I take pride in my strong problem-solving abilities and my knack for identifying the most simple, but effective solutions for complex challenges. I have worked on diverse projects, including mobile applications, web-based systems, CMS, and e-commerce platforms, ensuring high-quality results while adhering to tight deadlines.
As a highly motivated and ambitious individual, I continuously strive for excellence in my work and am eager to share my knowledge and insights with others.
5 out of 5 stars
Catalin is a great mentor. I really appreciated his focus on finding the right engineering solution first, with technology being just a tool to get there. I also really liked how much attention he paid to clear requirements and testing which is really important in nowadays world. I learned a lot from working with him and would definitely recommend him.
Standard Plan • 9 months
5 out of 5 stars
I've been working with Catalin as my mentor since February 2025. Before I became his mentee, I had been a programmer for about three years, but I never really had the confidence to build things on my own. I was mainly maintaining other people's systems rather than designing or building my own from scratch. Most of my work was with legacy code (as is often the case in corporate environments), which left some gaps in my knowledge. Under Catalin's mentorship, all of that changed. He helped me fill those knowledge gaps, especially around software architecture and building modern systems. More importantly, he gave me the confidence and support I needed to finally start building things myself. Since working with Cat, I've even been promoted at work! The growth in my skills and mindset has been immense. If you're in a similar position, someone with experience but feeling stuck or lacking confidence to take the next step, I can't recommend Cat highly enough. He's knowledgeable, encouraging, and genuinely cares about his mentees' progress. Working with him has made a huge difference in my career.
Standard Plan • 7 months
5 out of 5 stars
Catalin has been a really great mentor. He is able to look at things from different angles and give advice that is both practical and thoughtful. What I found especially useful was that he did not only focus on the technical side, but also helped me think about my soft skills, communication, career direction, and how to position myself better as an engineer. His advice was very relevant to my situation and gave me a lot of new perspectives. Even though I eventually decided to spend more time exploring entrepreneurship first, the guidance and mindset he shared are still very applicable and valuable for my next steps. I would definitely recommend Catalin to anyone who wants a mentor who can support both technical growth and broader career development.
Standard Plan • 1 month
You tell Catalin your goals. They see exactly what you want to work on before session one.
You meet within days. Catalin reviews your application and books your first session, usually within a day or two.
You leave with a plan. Concrete next steps and a weekly rhythm from your very first week.
Catalin Rosu
Tech Lead / Development Manager at None
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One-off sessions with Catalin
One-off sessions are a great option if you're looking for specific advice on a certain topic.
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