About Engage3P: Our Philosophy

At Engage3P, we believe progress doesn't start with force or speed.
It starts with space — the space to see where we're stuck, to reconnect with what matters, and to move forward with greater humanity and clarity.

We don't view stuckness as failure.
We see it as the invitation to lead differently.

This belief is at the heart of everything we do.
It’s captured in what we call The Engage3P Unstuck Principle.

At Engage3P, our team isn't just aligned to this philosophy—we are living proof of it.
Meet the team bringing The Unstuck Principle to life every day.

About Us

Shera L. Haliczer

Founder & Chief Momentum Officer

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Shera Haliczer is the driving force behind Engage3P, bringing over 20 years of experience guiding organizations through complex transformation initiatives.

Shera’s expertise lies in ensuring HR and business leaders have a strategic voice in technology decisions — bridging the gap between people, process & platform.

Shera ensures that HR leaders influence enterprise technology decisions rather than being an afterthought. She helps HR teams articulate their operational and strategic needs in ways that resonate with IT and executive leadership. She ensures that technology enhances workforce productivity, culture, and engagement, rather than becoming a barrier. Shera positions HR as an equal player in digital transformation, ensuring that workforce impact is a key driver in technology investments.

Her leadership and vision drive Engage3P’s mission to create meaningful, sustainable change for every client.

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Tanya Castle

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Tanya has 15 years of experience in sales, communications, and journalism, with a deep focus on helping organizations optimize sales strategies and event engagement to drive business growth. As the Founder and CEO of How To Conference, a boutique consulting firm, Tanya specializes in training sales teams on how to maximize events for client acquisition, brand awareness, and customer success. She also leads the sales team at SilverRide, a transportation company dedicated to enhancing mobility for seniors and individuals with disabilities.

Prior to her current roles, Tanya worked in software sales, providing solutions for paratransit services and bikeshare systems to transit agencies and cities. Her career also includes experience in international relations, working with organizations such as the United Nations in Kosovo, CARE in Nepal, MSI in Yemen, and as a freelance journalist in Congo, Rwanda, and Kenya for Deutsche Welle’s English radio service.

Tanya holds an Honours degree in Journalism from Carleton University in Ottawa, Canada, and a Master’s in International Security from the Paris School of International Relations (Sciences-Po) in Paris, France. Her expertise in sales training, strategic event management, and stakeholder engagement makes her a valuable partner in helping organizations drive meaningful connections and lasting business transformation.

Josh Allan Dykstra

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Future of Work Keynote Speaker and the world’s foremost practitioner on Human Energy™. With two decades of experience building five companies and working with some of the most iconic brands, Josh is also an author, TEDx speaker, and Founder & CEO of The Work Revolution, where they fight for the future by fixing work.

Diana Rosenson

Leadership & People Strategist | Culture Architect

With over 15 years of experience guiding organizations and leaders through growth, transition, and cultural evolution, Diana is globally known as a catalyst for sustainable transformation. Founder and CEO of the Self Mastery Institute, Diana Rosenson blends operational rigor with deep behavioral insight—and a deep command of mindset, behavior change, and organizational dynamics—to diagnos oh wait she goese what stalls performance, shift mindsets, and hard-wire high-performance ways of working.

Known for her fearless candor, Diana specializes in translating vision into action, bridging leadership gaps, and fostering high-performance mindsets. Her track record spans advisory work with executive teams at Deloitte and other global organizations, fast-growing tech companies in Tel Aviv, and record-setting PR firms in New York. This breadth of experience, combined with expertise in human behavior, emotional intelligence, and culture, empowers clients to navigate complexity with agility, rethink foundational assumptions, and lead with clarity and purpose. Whether steering a C-suite through a strategic pivot or elevating first-time managers, she delivers pragmatic, people-centered solutions that stick—always emphasizing measurable outcomes and sustainable change.

Nick Rosemarino

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Industrial/Organizational Psychologist with over a decade of expertise in leadership development, organizational culture transformation, and psychometric assessment design. Nick has consulted for Fortune 500 companies and startups across industries, leading groundbreaking work such as the psychometric redesign of McKinsey’s Organizational Health Index, which has impacted nearly 10 million employees globally. He is also a published researcher and PhD candidate at Columbia University.

How We Work: Our Value Compass

Grounded in people. Aligned to purpose. Driven by impact.

At Engage3P, values aren't just words on a page—they’re the foundation of how we partner, lead, and deliver results. Our Value Compass guides every engagement, helping us show up with clarity, empathy, and purpose.