He takes the time and energy necessary to not only provide wisdom and guidance, but to help people build their own confidence along the way, and be involved in their journey until they ultimately have internalized a skill or concept and made it their own. Dimitri has acquired expert-level knowledge and experience regarding this skill, but he is also intuitively talented at it in a way that reveals his unique aptitude.

I can confidently say that Dimitri is a person that any team would be lucky to have. He exemplifies what it means to be an authentic leader. I have worked with Dimitri in various settings, and the way with which he leads by example creates a culture of accountability, transparency, dependability, and collaboration. Creating this culture is fundamental to the long-term success of a team. Beyond this, Dimitri’s key skill, in my opinion, is his keen ability and willingness to coach. Dimitri invests in the people in his network. Finally, I want to speak to Dimitri’s character of always being genuinely curious and excited to learn. Although Dimitri is indeed focused and educated in his specialized areas of coaching and consulting, he is also incredibly well-rounded and keeping an eye on the dynamically shifting trends of the world at large. Dimitri is an early adopter of online tools, he does the research of his own volition to keep an eye on what’s to come in the future, and he generally thrives in environments that have a mindset of adapting and growing instead of a mindset of resistance and clinging to the status quo.

Emily Fisher, Junior Business Developer

Dimitri was a person that truly inspired, navigated, and transformed me as an individual. He was the driving force behind the decision of my career path and the man who was and still is a true mentor to me.

Thanks to him, I now enjoy a position in a workplace that I love and I live by the mindset of keeping on searching for ways to my personal growth. You might come across some ugly truths while working with him, but the result is definitely worth it. Dimitri, thank you for everything. Working with you as a mentee and a collaborator was an honor.

Natasa Tertlidou, Project Coordinator

Seldom in my life have I met people that combine such unusual creativity with a fast-paced positive attitude to organize his thoughts, move beyond brainstorming, and into implementing. He's also charismatic in explaining his ideas to other people with a contagious enthusiasm that helps him form teams that focus on the task at hand.

The immediate personality traits that pop into my head when thinking about Dimitri are his creativity and communication skills. His reliability, gentle demeanor, and polite manners certainly help complement his creativity and communication skills. As a result, for the past 5+ years that I have known Dimitri at ACT, even though we belong in different departments he has been my colleague of choice against who I choose to bounce and filter ideas, advice, and visions for improving just about everything around us.

Dr. Alexander Astaras, Assistant Professor in Computer Science

When the final list of possible career paths appeared I was surprised and excited having found on it a career that I had forgotten about but was very passionate about pursuing in the past.

Dimitri managed to look through many details and come to valuable conclusions.

Maria-Eleni Athanassiadou, Graduate student

Mr. Diamantis is a motivated, forward-thinking professional who is wonderful to work with! His hands-on approach to career coaching and consulting among others, has really helped me achieve results and ultimately thrive.

He has a very positive attitude towards work, he is methodical and dedicated. I am really appreciative of the valuable advice and assistance he has provided me with while pursuing my MBA, which has contributed to my professional development.

Chris Xefteris, International Trainee in Area Property Management

He cares, he deepens into things and examines your case from so many different perspectives, till he is absolutely sure about the outcome, he is persistent and helpful. He gains your trust and he is so much fun to be with! Above all, he just loves what he does. He certainly has found his career purpose!

I trusted Dimitri with my dream to find and pursue my career purpose. It was one of the most creative and efficient processes I have ever been through! Dimitri is a specialist in his job, he has developed a methodology to guide you to what is already in you in the most professional way. I would definitely recommend Dimitri and his work to anybody that wants to re-evaluate his relationship with his job, learn, and grow. I have done it already, actually! Dimitri, THANK YOU!

Persefoni Kalopessa, Retail Network Manager

He helped me identify my core values and strengths and had an impact on me building my potential future job.

Mr. Diamanti is an excellent professional. He is a great listener, asking the right questions, and has been very punctual and supportive during and after our work together.

Orestis Tsatsos, Digital Marketeer, Co-Host of “Business Undercover” podcast

An excellent and inspiring counselor that will bring out your best professional self

Dimitri helped me as an MBA graduate at ACT to rearticulate my career scope and redesign my CV and as a result, I started hearing back from almost all the companies I applied to. His rigorous method requires a lot of personal investment in assessing all personal accomplishments and creating a robust cohesive document that narrates your personal story and establishes you as a professional in your field. His experience and out-of-the-box suggestions also helped me create a cover letter that was to the point and delivered the message so successfully that in my following interviews some interviewers commented on it. Furthermore, Dimitri motivated me and uplifted me in “low periods” by offering not empty encouragement but achievable suggestions that made me an even more attractive candidate in the following applications. Lastly, he helped me with intense interview prep where we rehearsed several scenarios, analyzed technical and behavioral questions as well as body language both in English and in Greek, and I felt very confident walking in an interview, even from the first one. In total, I wholeheartedly suggest someone work with Dimitri. He isn’t someone who will write your resume for you and do your work, but an excellent and inspiring counselor that will bring out your best professional self and help you to communicate your talents effectively in your professional sector.

Androniki Tsakiridou, Data and Risk Analysis Expert

Case Studies

Tony X.

Account Executive at a leading travel guidance platform

Tony was one of those amazing young professionals who were capable of many things. Every employer that had worked with him was amazed at his commitment, work ethic, outcomes, behavior, personality. However, he had trouble finding a fulfilling career, working in opportunities that leveraged only a fraction of his abilities, paying a fraction of what he really worth. However, the most important was that all those were jobs or career paths that were leaving him unfulfilled. Tony knew that something was missing but couldn’t put his finger on it. He was feeling trapped that his life would continue on the same pattern: unfulfilling jobs that barely pay the bills, while seeing his energy, abilities, aspirations, potential, and time – his life- slipping through his fingers.

After attending the full program, Tony was reconnected with his true callings and identified a handful of powerful career paths fully aligned with his core. The top choice: help businesses thrive through technology. Although helpful by nature, he wanted to streamline his ability to connect with and help people in the corporate world, helping organizations move forward.



With this newly acquired clarity, when an “Account Executive” at a leading tech company appeared, it didn’t take long to realize that this is it. Tony not only now realized that this was a real opportunity fully aligned with him, but also knew how to pursue it. With renewed confidence and conviction, he won the hearts and minds of the executives of a travel guidance platform and started working as an Account Executive. He moved into a thriving European capital, became financially independent, felt fulfilled and empowered. Soon he proved his value and the promotion didn’t take long to happen. But not only his career was not on a whole new, thriving trajectory; his this confidence, love for his work, conviction that he was leveraging his abilities in an environment that made sense for him, authentically expressing who he was through his work, his entire life lightened up.

Tony took the time to find his purpose, and it paid off. Emotionally, financially, professionally, personally. His entire life took a whole new, positive, and highly appreciated trajectory.

Maro A.

Trainee in car design and manufacturing

Maro was a bright, inspiring young woman. She started her career in performing arts, only to move then to technology (did the bachelor in Computer Science) and then explored the world of business (completed an MBA). Mare was charismatic and she was great at everything she was doing. However, she was lost. Conventional wisdom leads her to pursue the studies she did, but this didn’t fill the void she was filling.

Maro completed our intensive purpose program. In the end, the career path that was jumping off the page, the option that was truly and deeply aligned with the core of Maro was something that she never really shared. It was a career path that she felt nobody would take seriously. It was more of a dream, wishful thinking, not something she could pursue. Maro was in her heart a car racing driver! What an amazing discovery!

Although it took Maro some time – and coaching – to realize that this could be a real option for her life, she started searching the field, experimenting with options. In the meantime, Maro had offers to work in both business and software companies, and it took real courage to turn them down and stick to her dream. And this paid off.


Now Maro is completing her master's degree in a leading European university in car design, in a career path that not only is aligned with her deep love for cars, but also leverages her creativity, technical aptitude, and business mindset. With the conviction that she found her purpose, the opportunities didn’t take long to appear. The life of Maro changed. She is now fulfilled, empowered, confident she is on the right track.

Do you connect with those stories?

Schedule your free discovery call to explore how the trajectory of your life can change by working with me.