Leadership Team

Lisa Segler serves as Chief Operations and Strategy Officer at The Just One Project, where she oversees organizational operations, program execution, and strategic initiatives. Working alongside the Chief Executive Officer and Executive Leadership Team, she translates strategy into effective operations, scalable systems, and measurable results.

Lisa brings two decades in mission-driven work, including fifteen years in nonprofit leadership across Southern Nevada. She joins The Just One Project from Three Square Food Bank, where she served as Chief Operations and Strategy Officer, leading strategy and enterprise operations across programs, benefit services, culinary operations, facilities, events, procurement, distribution, community partnerships, and research.

Lisa’s career has centered on children, older adults, and health equity. She has built programs from the ground up, strengthened organizations financially and operationally, and led teams through periods of rapid growth and significant change. She has secured major philanthropic and public investment, led government affairs at the state level, and partnered with universities, healthcare systems, schools, and community organizations across the valley. A systems thinker and servant leader, she is known for translating complex challenges into practical plans that teams can own and deliver.

Lisa holds a Ph.D. in Public Health and a Master of Public Health from the University of Nevada, Las Vegas, and a Bachelor of Science in Community Health Education from Portland State University.

She serves as Vice Chair of the Las Vegas Community Investment Corporation and is a past President of the Nevada Public Health Association. A graduate of Leadership Las Vegas, she was named UNLV School of Public Health Alumni of the Year and is a past recipient of The Just One Project’s Trailblazer Award. Outside of work, Lisa enjoys spending time with her family.

Tristan Hightower Skidmore serves as Senior Executive Director of Revenue at The Just One Project. After earning a bachelor’s degree from Knox College in Galesburg, Illinois, and a Master of Arts from Washington University in St. Louis in Classical Linguistics, Tristan felt called to the nonprofit sector and to work that improves the lives and communities of the people we serve. Since 2015, Tristan has worked exclusively in the nonprofit field, taking on progressively expanding responsibilities across communications, volunteer management, development, grant writing, program design, compliance, and fiscal management. After serving for two years as Chief Revenue Officer at another local nonprofit, Tristan joined The Just One Project in 2023 as Director of Grants and Compliance and later advanced to Senior Executive Director of Revenue, overseeing the organization’s revenue strategy and Finance Department.

Tristan approaches our work with a systems-level mindset, looking beyond individual programs or departments to understand how funding, finance, compliance, operations, and organizational strategy intersect and translating complex requirements into practical solutions. Tristan believes strong nonprofit organizations require both ambitious ideas and the infrastructure to sustain them and focuses on building the financial and strategic foundation to allow TJOP to continue growing responsibly.

When not at The Just One Project, Tristan is pursuing a second Master’s Degree at Rutgers University, playing video games, and spending time with family, which includes a spouse and three adopted pets: a corgi, Lieutenant Breakfast; a husky mix, Private Primrose; and a cat, Ella (no rank).

Mel Vega serves as Executive Director of Operations at The Just One Project, where she leads the people, systems, and operational strategies that support the organization’s programs and continued growth.

Before joining The Just One Project, Mel spent 20 years in retail operations, advancing from an entry-level role to Store Manager. Her experience leading high-volume operations built a strong foundation in team development, customer service, inventory management, performance accountability, and day-to-day operational leadership.

Mel’s journey at The Just One Project also began on the front lines. She joined the organization as a driver, gaining firsthand experience with its programs, clients, and daily operations. As the organization grew, Mel continued to take on greater responsibilities and leadership opportunities, ultimately advancing to Executive Director of Operations. Her experience across multiple levels of the organization gives her a unique understanding of both delivering services in the community and building the teams, systems, and infrastructure that make that work possible.

Today, Mel works alongside the CEO and leadership team to translate vision into execution, strengthen operations, and create the systems needed to expand access and support The Just One Project’s continued growth. Her leadership is rooted in accountability, innovation, service, and a commitment to ensuring the people The Just One Project serves experience the same quality, care, and dignity we would expect for ourselves and our own families.

Alissa Chavez serves as Director of People & Culture at The Just One Project, bringing more than a decade of experience across human resources, recruiting, operations, and organizational leadership. She built the foundation of her career in the private sector, including work with startups and growing organizations, where she gained firsthand experience building the people practices, systems, and infrastructure needed to support growth and change. In 2023, Alissa brought that experience to the nonprofit sector when she joined The Just One Project as Human Resources Manager and later advanced to Director of People & Culture.

Alissa approaches her role with an architect’s mindset, connecting people, processes, and technology to build systems that strengthen the employee experience and organizational operations. Her work extends beyond traditional HR into technology and organizational infrastructure, with a focus on creating practical, scalable solutions that support employees, strengthen leaders, and help organizations evolve.

When she’s not working, Alissa enjoys spending time with her husband, two children, two cats, one dog, and two chickens. She hopes to one day retire in Costa Rica, surrounded by nature and enjoying a peaceful life by the beach.

Mimi Diebold believes the best work happens when people show up for one another. As Director of Special Projects at The Just One Project, she serves as right hand to CEO and Founder Brooke Neubauer, overseeing executive communications, donor stewardship, partner relations, board governance, and special events, and stepping in wherever the mission needs her most.

Mimi came to nonprofit work after more than 30 years as a paralegal in personal injury, criminal defense, and civil litigation. She supported attorneys through some of the most demanding cases a courtroom sees, including murder, bank robbery, and major personal injury trials, and learned to stay steady under pressure, sweat the details, and keep complex work moving when the stakes are high. She brings those same skills to TJOP, connecting the dots in the day-to-day work.

A Las Vegas resident since 1980, Mimi first came to TJOP as a volunteer in 2014. In January 2023, she left corporate life to join the team full time and has never looked back.

Serving with Brooke, Mimi has had a front-row seat to TJOP’s remarkable growth. She is constantly amazed by the people she works alongside and feels lucky to be one small piece of a much larger movement.

Raised by a single mother, Mimi learned early what it means when a community rallies around a family. She is a former Girl Scout troop leader, an avid walker, dog lover, tea drinker, and consumer of documentaries. A proud mom of one, she has been married to the love of her life for more than 33 years. She has always been drawn to the work of showing up for people, whether that’s her family, her friends, or the neighbors TJOP serves every day.