His professional career is highly connected to Sports especially in developing  ages:

• Permanent teacher of Physical Education in the 41st Primary School of  Peristeri  (2005-  today)
• Substitute teacher of Olympic education in  the 3rd  Senior High School of Ilion (2000 –  2005)
• Teacher of Physical Education in the Mass Athletics Programs of the Municipality of  Nikaia (1992-1993),  the Municipality of Vari  (1993-1994),  the Municipality of Chalandri (1996-1997),  the Municipality of  Vrilisia ( 1998- 2000) and  the Municipality of  Palini  (2000  – 2003)
• Teacher –   coach of the TAD of Peristeri  (1997- 1998)
• Substitute teacher of Physical Education in the 1st Evening Senior High School in Nea Ionia  (1996-1997)

Demetrios Dais  is currenty working as the Technical Manager in the Academies of DAFNI DASOUS HAIDARIOU  FC with a noticeable presence in the Developing Football  Athletics area.

He has participated in a large number of seminars  regarding not only Sports but a variety of issues  aiming at the upgrading and the expansion his knowledge and experience.

Since 2017 he has been cooperating with E.S.F.A . as a coach, participating in  all the events that E.S.F.A. and SCHACHTER MANAGMENT organize.

He speaks English, French and Bulgarian and he has a Diploma in Lifeguarding.

Dimitrios Dais has been a certified UEFA A coach since 2008  and a certified coach of E.S.F.A. & SCHACHTER MANAGMENT since 2017. He has a BA in Physical Education from the Higher Athletic Academy of Bulgaria (Sofia) and a Diploma in Football Coaching

He has an active presence in  the athletic events of our country  especially the ones involving children’s Football Academies. He has a long and rich coaching experience:

• Coach of the newly found U14 Department of the  Higher Institute of Physical Education of Sophia (1989-1990)
• Coach of the U16 and the U18   teams of the KYANOS ASTERAS of Vari Football Club (1991-1993)
• Coach in the Children’s Group in Juan Ramon Rocha’s football Academy (1993-1995)
• Coach  in the Academies of  Panathinaikos Football Club  (1993 – 2000)
• Coach of the newly found mixed U14 team of EPSA  (1997-1998)
• Coach of the Academies of  Atromitos FC (2000 – 2006)
• Coach of the mixed U16 team of EPSA   (2005 – 2007)
• Technical Manager of the CENTAUR VRILISIA FC (2007- 2008)
• Technical Manager of the  Athletic Union of  Peristeri  (2008- 2011)

Having an aptitude for sports since childhood he participated in many sports activities as an athlete and was highly successful in the following:

• Panathinaikos’  Athletics Department (1975- 1979)
• Football Club of AOF Androu (1980-1985)
• Football Club KOROPIOU  (1985- 1991)
• Football Club of KYANOS ASTERAS of Vari (1991-1995)