Leadership Team

Kenneth E. Kaszubowski, P.E.
President

President

Kristin Kurzka, P.E., P.G.
Vice President

Kristin Kurzka, P.E., P.G.
Vice President
Kristin’s career began and has grown along with Sigma from her start over 30 years ago as a staff engineer to her current role as Vice President. Within her current role she is responsible for the firm’s strategic, organizational, and administrative direction.
She started her career assisting the private and public sector turn contaminated underutilized properties located in the heart of our community into repurposed and revitalized businesses and destinations. Kristin is very proud of her contributions to the nationally recognized award winning Menomonee Valley Brownfield redevelopment.
She is also dedicated to educating young women through her involvement in the Menomonee Valley Partners and Women in Commercial Real Estate Wisconsin mentoring programs.
“The most rewarding aspects of my career include assisting others as they invest in and revitalize our communities and environment while mentoring the next generation of leaders.”

Christopher Carr, P.E.
Vice President

Vice President
“I feel very lucky to have worked on projects that a diverse group of people get to use and enjoy. Our family loves Wisconsin and am proud to continue to do my small part in its continued progress and development.”

Brian Dworak
Chief Financial Officer

Chief Financial Officer

Charles Staley
Chief Technology Officer

Chief Technology Officer
“With the rise of AI and the ubiquity of cheap computing power, humanity stands at the cusp of a Golden Age. It’s important that we embrace this new technology as an extension of our abilities while never losing sight of ourselves. We must never allow computers to think for us, lest we lose our ability to reason. I can’t wait to see what advancements the future has in store for us. It’s truly an amazing time to be alive.”

Joshua J. Neudorfer
Business Development Leader

Business Development Leader
Josh is a Business Development Leader and Senior Consultant with almost 30 years working in the environmental and engineering consulting industry, with 26 of those years at Sigma.
He has extensive experience in contaminant clean-up, real estate due diligence, hazardous material management, stormwater solutions, adaptive reuse, and property redevelopment. In his current role he works with clients to identify the right solutions for their unique challenges working with project teams to implement those solutions. Josh focuses on long-term relationship building, trust, and value—important components to long-term success.
“Solving problems, helping people, and creating long-term relationships make me happy. I was born to be a consultant, as at the end of the day, I love the real estate industry, the natural world, and getting stuff done.”

Patrick Finn, P.E., MBA
Technology Development Leader

Technology Development Leader
Pat has been working at The Sigma Group as a civil and construction engineer for 17 years starting as an intern and currently serving as the Technology Development Leader. His responsibilities include leading and mentoring staff through a variety of design and construction projects for public roadways and utilities, commercial, residential and industrial developments. Pat is also charged with tracking and implementing emerging technologies at Sigma. In 2015, Sigma was one of the first firms in the area to use drones for surveying. Today Sigma continues to be a leader in technology using drones, scanners and GIS to service our clients.
“My favorite part of this business is the connection with the people. I have a passion for taking on challenging opportunities and solving complex problems.”

Kristi L. Linsmeier, P.E., CHMM
Environmental Engineering Group Leader

Environmental Engineering Leader

Kevin Slottke, P.L.S.
Land Survey Group Leader

Land Survey Group Leader
Kevin has been a Land Surveyor for 35 years and professionally registered for over 25. He has worked extensively in construction layout for projects starting from 60 feet in the ground, to 19 stories above. He has surveyed land all across the great State of Wisconsin, ranging from small residential properties to 100+ acre industrial sites. As Land Survey Group Leader, he uses his knowledge and experience to manage people and projects, ensuring quality and efficiency.
He is Vice President of the Wisconsin Society of Land Surveyors (WSLS) Foundation, which provides support and scholarships to students and land surveyors. Kevin enjoys teaching others about land surveying and is a frequent presenter at professional conferences and schools.
“I genuinely enjoy what I do. Even a challenging day is rewarding when a solution can be found. Aside from work, I enjoy the outdoors. Wisconsin is a great place to live, with a really diverse range of landscapes and things to do. Going to local baseball games, racetracks or the cabin, there’s always something going on!”

Robert J. Gosse, AIA
Facility Services Group Leader

Facility Services Group Leader
Bob is a licensed architect and joined the The Sigma Group in March of 2022, currently serving as its Facility Services Group Leader. In this capacity, Bob oversees a team of engineers and architectural designers, and directly manages multiple projects in the fields of architecture, facility management, owner’s rep services, and project management.
Beginning his career with ten years of professional architecture practice, Bob joined Milwaukee World Festival, Inc. for a truly unique and rewarding opportunity that utilized his talents learned as an architect and expanded his growth into a facility management profession. For more than 26 years, he managed the Summerfest grounds. During his tenure, he coordinated the design and implementation of live music festival setup, managed day to day building maintenance, oversaw facility operations including in-house maintenance staff, outside contractors, and managed teams of architects and construction managers to design and construct over $350 million in building and site improvements within the 80 acre venue.
Bob is passionate about the built environment and the adaptive re-use of buildings.
“I like nothing more than to analyze building problems, develop solutions to save and maintain them, and design opportunities to repurpose them to keep these valuable resources from ending up in a landfill.”

Paul J. Imig, P.E.
Civil Engineering Group Leader

Civil Engineering Group Leader
Paul has been working at The Sigma Group as a civil engineer for 20 years starting as a staff engineer and now serving as the Civil Engineering Group Leader. His responsibilities include leading and mentoring staff through a variety of civil projects ranging from green infrastructure, public roadways and utilities, and commercial, residential and industrial developments.
Paul’s early career experience providing construction inspection services and surveying services for WisDOT and municipal clients is used to consider constructability during the design process. Paul leads our design engineering team and project managers with a current focus on industrial and multi-family and municipal infrastructure design projects.
“I’m not one who likes having an idle mind or hands. I always want to be actively doing something. At work, I’m driven to find solutions to complex or challenging issue focused on helping clients get their projects built. At home, there’s always a remodeling or updating project that needs to be done, maybe a break to go kayaking, hiking, or spending time with the family.”

Ali Maykhan
Construction Services Group Leader

Construction Services Group Leader
Ali has been with Sigma since January 2020 and serves as the Construction Services Group Leader. He has over 24 years of experience completing construction inspections, contract administration, public relations, budget monitoring, and design and specification development. Ali led various Wisconsin Department of Transportation projects ranging from constructing bridges and roads to supervising WisDOT Mega and Complex projects, including the Marquette Interchange, the Mitchell Interchange, and IH 94 N-S Freeway.
As a structural engineer with extensive construction management experience, Ali and his team of project managers and inspectors are working as construction managers and owner representatives for Sigma Clients in the commercial and industrial market on projects with costs ranging from multi-millions to hundreds of millions of dollars.
“I feel fortunate [to] have the opportunity to work on projects in different communities worldwide. My career path has expanded my life experience and ability to successfully tackle challenging and complex projects.”