After completing his undergraduate degree, Jimenez gained valuable experience through several positions. In 2005, Jimenez spent four months interning for David Englin’s Virginia State Delegate campaign. In 2007, he started as an intern for the Office of Congressman Howard Berman. Shortly after, he became a Staff Assistant for the Office of Congresswoman Linda Sánchez. In late 2007, Jimenez became a Professional Staffer for the Immigration Subcommittee of the US House of Representatives. His experience at various government levels, from local to federal, has equipped him with a broad and insightful perspective on policy and advocacy.

Jimenez worked for the US House of Representatives until 2010, when he became a Legislative Representative for the City of New York. In 2014, Jimenez left the inner workings of government to be Senior Manager of Government Relations for Ocean Conservancy. He fostered bipartisan solutions to pressing issues such as ocean acidification and sustainable fisheries in the United States. His focus on sustainability and his ability to bridge political divides underscored his commitment to finding practical solutions to complex environmental challenges. In 2016, Jimenez received a promotion to Associate Director of Government Relations. Jimenez’s formative experiences at Ocean Conservancy played a pivotal role in shaping his understanding of environmental advocacy and the intricate politics within the environmental sector. His time at Ocean Conservancy was crucial in his career, providing him with invaluable insights and hands-on experience.

In 2017, Jimenez joined Citizens’ Climate Lobby (CCL) as the Senior Director of Government Affairs. In this capacity, he collaborated with the US House and Senate to expand CCL’s influence and advocate for crucial environmental legislation. His contributions significantly bolstered the voice of CCL in the political landscape. Drawing from his own challenging experience as an intern on Capitol Hill, where unpaid internships left him financially strained, Jimenez actively worked to change this situation for future generations. During his tenure at Citizens Climate Lobby, he initiated paid internship programs, opening doors for young people of color to gain valuable, hands-on experience in advocacy work. This commitment to diversity and equity has enabled interns to contribute concrete outputs they can leverage to pursue future career opportunities.

Since 2020, Jimenez has been the Planning Commissioner for the Fairfax County Government. As At-Large Fairfax County Planning Commissioner, Jimenez contributes to the betterment of his community by helping shape smart development and planning decisions. Also in 2020, Jimenez was named Executive Director of Green 2.0, making him the organization’s first full-time Executive Director. Green 2.0 promotes diversity and inclusion in the environmental sector, a good fit for Jimenez, who profoundly understands the communities he advocates for. As the Executive Director, he brings his strategic thinking and relationship-building skills to further this vital cause.

Jimenez’s dedication to diversity and inclusion extends to his initiatives at Green 2.0, where he established an open-access career page. This platform connects employers with diverse talents, creating opportunities for individuals from underrepresented backgrounds to enter the environmental sector. His vision and actions have paved the way for a more inclusive and equitable future in environmental advocacy.

In addition to his professional roles, Jimenez is actively engaged in community organizations. He proudly serves as a Board Member for the Culmore Clinic, further exemplifying his dedication to improving the well-being of underserved communities.

Jimenez’s tireless dedication extends beyond his professional life. He is a lifelong Democrat and community leader, advocating for smart development, affordable healthcare, climate action, clean waterways, and immigration rights. His multifaceted roles as a Planning Commissioner, Board Secretary for the Culmore Clinic, and Executive Director of Green 2.0 underscore his commitment to championing the welfare of his community and advancing impactful causes, making him a prominent figure in environmental advocacy and community leadership.