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Who is Jonathan Kleisner? NY millionaire quits Wall Street and now risks his life for ‘$18/hour’ as paramedic

Jonathan Kleisner became one of the “best trained medics” in the country after leaving his Wall Street finance job, where he was making millions.

Updated on: Sep 5, 2025, 05:38:21 IST
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Jonathan Kleisner, who once made millions of dollars on Wall Street, decided to walk away from it all to reinvent his career as a paramedic. Reportedly, it all started when he saw the workings of medics up close during the rescue of one of the members of his hiking party.

At one point in his life, Jonathan Kleisner used to juggle a demanding finance job and his volunteer EMT work. (LinkedIn/Jonathan Kleisner)
At one point in his life, Jonathan Kleisner used to juggle a demanding finance job and his volunteer EMT work. (LinkedIn/Jonathan Kleisner)

After this incident, Kleisner started distancing himself from his Wall Street identity in search of a new one, he told the New York Times during an interview. “It was like a protest,” Kleisner said. “I wasn’t serious. But I was sick of Wall Street.”

Also Read: 18-year-old millionaire CEO of Cal AI rejected from Harvard, Yale, Stanford

Soon he found his new calling and started volunteering in Central Park as an EMT. At one point, he also started juggling his finance job and work as a volunteer medic. Later, he left his Wall Street life behind and worked towards becoming one of the “best trained medics” in the country. He traded his millionaire status for a starting salary of $32,000. The 55-year-old is now a rescue medic, part of the department’s elite cohort.

Why risk his life?

During his interview with the outlet, the elite medic recalled a few instances of him saving people. He talked about saving a man who suffered a stroke while on the observation deck of the Empire State Building. He had also responded to an emergency call during a Broadway show.

One of his painful memories was when he had to respond to a fire scene call in 2022, which was later called the deadliest fire in New York City in the last 30 years. During it, Kleisner saw firefighters bring victims from all across the 19-story building, some of whom were dead. Among the victims, many were children. Reportedly, the fire killed 17 people, leaving 44 others injured. Till today, the paramedic reacts whenever he thinks of the scene. He told the outlet that his neck begins to sweat, his heart rate increases, and he feels short of breath.

Jonathan Kleisner on his career change:

Kleisner sees his drastic career shift from millionaire to medic as an “escape.” However, he also acknowledges the trauma that comes with his new job. “You have to learn how to live with all of this.”

Also Read: Indian-origin founder on feeling empty after $500 million exit: ‘How much golf can I play?’

Jonathan Kleisner’s career path at a glance:

According to his LinkedIn bio, he worked at the investment firm for over 17 years, from 1996 to 2013. He then served as one of the trustees at National Outdoor Leadership School (NOLS), an outdoor skills school.

He joined the New York City Fire Department (FDNY) in 2012 as an EMT. He then slowly rose through the ranks to become a member of the elite team and an instructor.

 
ABOUT THE AUTHOR
Trisha Sengupta

Trisha Sengupta works as Chief Content Producer at Hindustan Times with over six years of experience in the digital newsroom. Known for her ability to decode the internet’s most talked-about moments, she specialises in high-engagement storytelling that bridges the gap between viral trends and traditional journalism. Throughout her tenure, Trisha has focused on the intersection of technology, finance, and human emotion. She frequently covers personal finance and real estate struggles in hubs like Gurgaon, Bengaluru, and Hyderabad, while also documenting the unique challenges of the NRI experience. Her work often highlights the movements and philosophies of global newsmakers and personalities like Elon Musk, Mukesh Ambani, Nikhil Kamath, Dubai crown prince, and MrBeast. From reporting on Amazon or Meta layoffs and startup culture to the emergence of AI-driven platforms like Grok and xAI, she provides a grounded and empathetic perspective on the stories shaping our world. When not decoding the internet, Trisha is likely offline: lost in a book, exploring a historical ruin, or navigating the world as a solo traveler. She balances her fast-paced career with family time and a healthy dose of curiosity, currently trading her "human" sources for silicon ones as she masters AI to future-proof her storytelling.

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