Meet Our Team

Katherine Gregorski, SPHR, SHRM-SCP, PMP

President and Founder

Prior to founding Jubilant, Katherine spent more than 20 years as an HR/Payroll practitioner/leader working in multiple industries. Her practitioner and leadership background combined with 5+ years in UltiPro Implementation consulting brings a unique perspective centered around HR/Payroll best practice consulting in every engagement.


She believes the strength of an HR implementation strategy comes from the commitment of the people involved. Katherine is a certified Implementation Partner Associate/Project Manager with UltiPro.

Tim Force

COO, Partner

Tim spent over 25 years in HCM software. His experience ranges from HCM system evaluation and selection, to consulting on HR/Payroll software implementation and HR Transformation best practices. Tim’s career includes working with companies of all sizes and industries, including over a dozen of the Fortune 500.


He believes in transparency, over delivering on every promise, and focusing every decision on client success. Tim also sits on the Board of Advisors for the company.

Jennifer Fiorletta

Administrative Coordinator

Prior to Jubilant, Jen successfully implemented an automated timekeeping and payroll HRIS system for her organization, taking them from paper processes to a fully automated system in order to obtain operational excellence and an enhanced user experience. Jennifer also created and delivered rollout communications and product training for the HRIS system end users.


Jen has a strong passion for helping people and organizations become successful. She is committed to excellence in service and helping others to achieve a common goal by being thoughtful, supportive and accountable.

Debbie Mueller, SPHR, SHRM-SCP, PMP

PM/Senior Implementation Consultant

Deb has participated in every facet of HR including training, employee relations, strategic planning, benefits, compensation and recruitment. She is uniquely skilled in balancing change with the opportunities for strategic impact on an organization. She successfully consolidated HR & payroll systems, moving her organization of 1,200 employees from paper processes to automated timekeeping/payroll. Her approach to build a People first HCM solution created a more intuitive employee experience.


Debbie believes that cultural change is not about checking the boxes, it is about understanding the goal, defining process, and executing to make the impossible, possible. She is a certified Implementation Partner with UltiPro’s HR, Payroll, and Time products.

Kim Melton, MBA, PMP

PM/Senior Implementation Consultant

Kim is a HR/Payroll professional with strong functional management expertise complimented by systems implementation, project management, reporting, and metrics experience. Implementation experience includes conducting functional process interviews, assessing requirements, developing detailed work plans, process re-engineering, data mapping and overall project management. Kim’s experience as an HR practitioner includes staffing/recruiting, benefits, employee relations, payroll, associate/management training, Performance Management, and Compensation.


Kim believes in strategic planning, and execution. Her broad experience in system implementation includes 6+ years working with UltiPro. She is a certified Implementation Partner with UltiPro’s HR, Payroll, and Talent Management Suite.

Sonya Stasko, PHR, SHRM-CP, KCFS

Implementation Consultant

Sonya is an accomplished, performance-focused professional with a solid record of success analyzing, developing, and implementing processes and systems that continuously improve operational efficiency to drive positive business results and alignment with strategic initiatives. Combining her depth of experience with technological systems, understanding of business processes, and project management skills, Sonya continues to drive projects to successful completion on time and on budget.


Sonya believes that any challenge can result in rewarding accomplishments, and every problem has a solution if you take the time to understand the underlying issue or cause. She is certified as a Solution Delivery Partner Associate with UltiPro’s HR/Core & Payroll products.

Delena Eckstein

Implementation Consultant

Delena has over 20 years of experience in HR and Payroll as both a practitioner and Analyst. The last 3 years of her career have been dedicated to implementing UltiPro HR/Payroll. Delena’s unique combination of practitioner and technology implementation experience allow her to review current policies and processes to bring best-practice consulting to every engagement.


Delena believes in taking the time to understand each client’s unique needs and provide patience and hand-holding through the rigors of task management during an UltiPro Launch project. She is certified in UltiPro HR, Payroll, Time and Business Intelligence with a strong focus on Payroll.

Natalie Minarcik

Implementation Consultant

Natalie has over 20 years of experience as a software professional performing implementations and large training sessions with an emphasis on Human Resources products that include Time and Attendance, Core Human Resources, and Recruiting and Onboarding. She combines project management and business experience to develop and implement innovative procedures making efficient transitions into existing workflows. She possesses deep operational experience, technological skills and cross-functional communication abilities.


Natalie believes in building positive relationships that are founded on trust and respect with people that want to be fulfilled in the work that they do. She is a certified Solution Delivery Partner in UltiPro’s Core HR/Payroll.

Jeremy Henderson

Senior Technical Consultant

Jeremy spent 10 years in HR as both a practitioner and in software implementation, with a focus around Benefits. Jeremy has spent the last 3 years of his career working as a Technical Consultant for Ultimate and also as an HRIS Analyst for an UltiPro client. Jeremy’s strong technical background, combined with having sat in the chair as an HR professional brings the ability to interpret a client’s functional needs and translate that into the technical configuration of UltiPro.


Jeremy believes in operating with a high degree of integrity and in setting proper expectations to ensure client satisfaction. Jeremy is certified in UltiPro’s Data Conversion and as an Integration Analyst.

Jeff DeMars

Technical Consultant

Prior to Jubilant, Jeff was an HR Professional with a focus on HRIS technology implementation. Jeff’s wide range of HR experience makes him uniquely knowledgeable on both the client, and vendor side of the technology implementation life cycle. This perspective positions him to help clients bridge the typical pitfalls experienced during the launch of a new piece of technology. Jeff has hands on experience with a variety of HR technologies, including 5+ years with UltiPro as both a client and partner consultant. Jeff has an exceptional grasp of UltiPro from an administrative viewpoint, as well as in its technical configuration.


Jeff believes that the vision of what you intend to accomplish with a new solution, and how it will benefit your organization must be well established. Trust must also be built with clients to bring your vision to life. He is a certified Solution Delivery Partner in UltiPro’s Data Conversion and Core HR/Payroll.