- Officiated in the North American Soccer League from 1979 – 1984
- USSF National Official from 1979 – 1991
- Officiated in the National Professional Soccer League from 1983 – 2001
- FIFA referee 1988 and 1989
- Project engineer for Lockheed Martin 1966 – present
- Officiated numerous championship games for USSF; FIFA; NCAA Divisions I, II, and III; Major Indoor Soccer League; North American Soccer League; American Soccer League; and the National Professional Soccer League at various times from 1968 – 2002
- He has been a member of NISOA since 1974.
- He has officiated over 100 NCAA/NAIA playoff matches in his career.
- In 1995, Julio refereed the Division 1 Men’s Semi-final San Diego St vs. Virginia.
- Julio has also refereed over 20 years in the ASL, NASL, NPSL, AISA and MISL.
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