Our Team

Co-Owner, Event Coordinator, DJ/MC

Mark Senior Jr.


Mark prides himself in going above and beyond for customers, creating the perfect experience for each event. He has had the pleasure to DJ for hundred’s of events, specializing in Weddings and Corporate Functions. His knowledge of music includes mixing in hits from the 70s 80s & 90s with current popular hits that keeps guests dancing all night long! Mark is the company’s mastermind behind the business, responsible for organizing functions with clients and perfecting every single event.

Co-Owner, DJ/MC

Joshua Venditti


Josh has a style of creating a dance floor for all ages. He is a skilled turntablist, who goes out of his way to execute the perfect blend of music at each event. There is not one single person that is able to match songs together like he can! He enjoys a challenge, with a passion of mixing classic dance songs with Today’s Top 40 hits. He is Jam Event’s head DJ for all events, an honor he rightfully deserved.

DJ, Audio/Video Tech

Eric Colantropo


Eric has an energetic, yet professional attitude and mixing style that can hype up all types of crowds. His passion for all musical genres shine through with the diverse music selection and variety of styles he can effortlessly mix together. Eric enjoys his time by performing for the company at events, as well as a regular rotational spot at Pinz in Milford Massachusetts.


David Mojica


David is an important part of Jam Event DJs with his experience in not only top 40/open format song selection, but our go to DJ for Quinceaneras, along with our Spanish events that include the need for his deep knowledge of Reggaeton, Bachata, Merengue & Salsa. David enjoys his Friday night club residency at Pinz in Milford, providing a mix of top 40 hits, dance, remix, hip hop and Reggaeton.


Jay Senior


Jay has been a professional DJ since 1993, where he started working with Conte Sound DJs. He has worked with many Boston’s popular DJ companies, providing excellent master of ceremony skill along with entertaining guests with a collection of music ranging from the 60s 70s 80s 90s to Today’s chart topping hits.


Eric Gourene


Eric “DJ EClass” Gourene is one of Worcester’s popular Club DJs who is well known throughout the city for his on point precision of mixing all music. He currently holds a Friday night residency at Canal Restaurant & Bar, providing the crowd with a blend of Top 40, Dance, Hip Hop & Reggaeton songs. Eric is one of our friends in the industry that loves music, filling dance floors for years.


Robert Jachimczyk


Robert “DJ Bobby J” Jachimczyk is another one of our local friends who’s company, “Blackstone Canal DJs” is up and coming. He is very popular in the Worcester area, known for entertaining many private parties including Weddings, Anniversaries, School Functions and beyond. He is normally found mixing music at his residency of Union Tavern, along with surrounding Clubs on available nights.


Matt Jacobs


Matt is the owner of MJ Entertainment. He has provided sound and emcee services for the DCU Center in Worcester, along with the Buffone Arena for a number of years. He is a family-friendly DJ that has a great selection of radio edited songs, excells at karaoke (one of his favorite hobbies), and has experience in Weddings. He is another one of our friendly outside event company owners that is always willing to help!