Meet our team of exceptionally talented, committed, and accomplished professionals.

Team

William Allan

Electrical Co-op

Team

Trevor Blampied

Electrical Designer

Team

Caleb Bristol, EIT

Mechanical Project Engineer

Team

Sarah Carter, PE

Senior Mechanical Engineer/Project Manager

Team

Rheannon DeMond

Senior Designer/Energy Specialist

Team

Chuck Dudas, PE

Senior Mechanical Engineer/Project Manager

Team

Will Evangelakos

Electrical Project Engineer

Team

Darab Fadavi

Senior Fire Protection & Plumbing Engineer

Team

Keirstan Field, EIT

Project Manager

Team

Maddie Goldberg

Mechanical Designer

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Adrienne Harris

Mechanical Designer

Team

Maxwell Hatheway

Electrical Designer

Team

Ted Hetzel, PE

Mechanical Project Engineer

Team

Adam Kohler, PE

Senior Mechanical Engineer/Project Manager

Team

Doug Kumph, PE

Senior Manager, Operations

Team

Rocky Marcus

Electrical Project Engineer

Team

Jennifer Marrapese

Chief Revenue Officer

Team

Sara Martin

Office Coordinator

Team

Hung Ming (Jason) Ngai, PE

Senior Mechanical Project Engineer

Team

Thomas Perkins

Mechanical Designer

Team

James Petersen, PE

Founder and Principal

Team

Mark Prendable

Senior Electrical Engineer/Project Manager

Team

Christine Thomas, PE

Project Manager

Team

Gabi Tobin

Electrical Project Engineer

Team

Michael Trickett, PE

Senior Manager, Electrical

Team

Belkis Vergara

Mechanical Co-op

Team

Mary Vinagro

Controller

Team

Peter Wingate, EIT

Mechanical Designer

William Allan

Electrical Co-op

"I am excited to join a team full of colleagues with extensive knowledge throughout a plethora of fields. I am eager to gain real-world experience while continuing my studies in electrical engineering."

William recently joined Petersen Engineering as a full time co-op student from Northeastern University. He is excited to work on the front lines of industry-leading sustainable design and to explore the real-world applications. Throughout his time at Northeastern, William has been a member of the Cycling Club, Recreational Climbing Club, and Downhillers Ski and Snowboard Club. At Petersen, he primarily works alongside electrical designers on affordable housing designs.

William has completed his second year at Northeastern University and is working toward completing his BS in electrical and computer engineering.

Trevor Blampied

Electrical Designer

"I am excited to begin my career at a company is able to adapt so quickly to changes and incorporate the latest research into our designs."

Trevor started working with Petersen Engineering remotely, at the outset of the COVID-19 pandemic, while finishing his degree. He enjoys the collaboration with colleagues that is still able to happen despite being remote. Prior to his role at Petersen, he interned at New England Wire Technology researching winding resistance in inductors. During his senior year, Trevor was in the University of New Hampshire Students for the Exploration and Development of Space (SEDS) club and worked on the avionics team for a hybrid rocket engine. At Petersen, he primarily works on new apartment designs but has worked on redesigns, office fit-ups, and a hospital.

Trevor has a BS in electrical engineering from University of New Hampshire.

When Trevor is not at work you will find him
  • At the gym pumping iron
  • Grinding Dota 2 games
  • Building custom mechanical keyboards

Caleb Bristol, EIT

Mechanical Project Engineer

"I look forward to working on diverse and multifaceted sustainable buildings. I’m very excited to join the growing team at Petersen Engineering and be a part of the collaborative, team-driven work environment."

Caleb works as a project engineer producing efficient, sensible, and integrated systems. He leverages his experience in building information modeling (BIM) to produce highly coordinated mechanical system designs. Caleb enjoys the back-and-forth collaboration of complex projects and the challenges that they bring. Prior to joining Petersen, he gained broad mechanical system design experience in his role with another engineering consulting firm, where he worked on educational buildings ranging from dormitories to laboratories, as well as theaters, hotels, libraries, and historic buildings.

Caleb has a BS in architectural engineering technology from Vermont Technical College, where he graduated cum laude. He is an Engineer-in-Training, working toward becoming a licensed Professional Engineer.

When Caleb is not at work you will find him
  • Camping
  • Hiking with his wife and dog
  • Snowboarding

Sarah Carter, PE

Senior Mechanical Engineer/Project Manager

"I enjoy the fast-moving and multi-task nature of our work that requires us to adapt to changing project demands. I am proud to be a part of the Petersen Engineering team and excited about our continued growth in the industry."

Sarah began her engineering career as a mechanical designer before joining Petersen Engineering. She is committed to smart and sustainable mechanical system design and enjoys the collaboration and coordination between architects, engineers, owners and developers through the integrated design process. At Petersen Engineering she is responsible for overseeing multiple projects from design through construction including multi-family housing, water and wastewater treatment plants, commercial buildings, historic mill conversions and occupied rehabs.

Sarah received her BS in mechanical engineering from the University of Vermont. She is a licensed Professional Engineer in New Hampshire, Massachusetts, and Virginia, a LEED Accredited Professional, and a Certified Passive House Consultant.

Certified Passive House Consultant

Rheannon DeMond

Senior Designer/Energy Specialist

"I am excited about the positive and sustainable impacts the projects I work on will have in creating and restoring a habitable environment for future generations."

Rheannon spent the first decade of her career as an energy and sustainability consultant, MEP designer and project manager, working in the high-performance building sector for a national panelized builder. She brings a wealth of knowledge in building science, sustainability programs, building information, and energy modeling. She enjoys teaching and mentoring students and interns and has served as an adjunct professor for an advanced building science and solar design course at Keene State College.

In her role at Petersen, she works as a senior designer, supporting the engineering, design, drafting, production, and execution of project work. She also provides support for energy modeling, Passive House consulting, and project management.

Rheannon is a Certified Passive House Consultant and Building Performance Analyst and has a BS in architecture with a special focus in building science from Keene State College, where she graduated magna cum laude.

When Rheannon is not at work you will find her
  • Spending quality time with her family
  • Reading
  • Enjoying good food, beverages, and company
Certified Passive House Consultant

Chuck Dudas, PE

Senior Mechanical Engineer/Project Manager

"I enjoy working with my colleagues, the variety of projects that we work on, and the opportunity to work on high-performance buildings at a firm committed to green engineering."

Chuck began his career as a construction manager, where firsthand experience in the construction process helped shape his interest in designing highly efficient, constructable mechanical systems. Before joining Petersen, he began his consulting work with the HVAC and plumbing design of high-performance office and school buildings, including multiple LEED Platinum and Net-Zero Energy projects.

In his role at Petersen, he oversees detailed mechanical design work for a variety of project types including multifamily residential, assisted living, healthcare, municipal and commercial buildings. He especially enjoys helping integrate the mechanical systems into the overall project, either through Revit or detailed coordination between the disciplines.

Chuck is a licensed Professional Engineer in Massachusetts, Pennsylvania, and California, a Certified Passive House Consultant, and a LEED Accredited Professional. He received his BS in mechanical engineering from Messiah College, where he graduated magna cum laude.

Certified Passive House Consultant

Will Evangelakos

Electrical Project Engineer

"The workplace environment and employee attitudes are healthy and professional, with everyone showing interest, curiosity, and pride in their work. I am happy that I was able to join Petersen Engineering, and am excited for my future here."

Will designs smart, sustainable, and effective electrical systems. Applying his experience with BIM software, he ensures electrical designs are accurate and clear. Will enjoys coordinating with fellow engineers, architects, and contractors to further understand and overcome challenges in the construction process.

Before joining Petersen Engineering, Will spent four years as an electrical engineer at a MEP firm in New York City. His experience in electrical design spans from retail and commercial tenant fit-outs, to mixed-use developments, and includes residential, commercial, educational, hospitality, and high-rise buildings.

Will has a BS in electrical and computer engineering from Worcester Polytechnic Institute. He is currently working toward becoming an Engineer-in-Training.

Darab Fadavi

Senior Fire Protection & Plumbing Engineer

"Petersen Engineering is a collaborative and dedicated team, committed to sustainability and doing best by our clients. With experience across both consulting and construction, I’m excited to bring my passion for fire protection to this growing organization."

Darab brings a unique blend of experience to Petersen, having served as a call firefighter and as a fire protection contractor. Through this work, he has encountered many different systems in the field, and has developed a clear sense of the best application to a given project.

Darab supports the design and layout of fire protection and plumbing systems with other engineering staff in the office. He is interested in high performance building systems and unique design applications, and is eager to share his field and installation knowledge to improve projects, reduce costs, and increase efficiencies in a collaborative and cost-effective manner.

Darab has a MS in fire protection engineering from Worcester Polytechnic Institute, and a BS in mechanical engineering from Wentworth Institute of Technology. He is currently working toward becoming a Professional Engineer.

Keirstan Field, EIT

Project Manager

"I’m excited to be working for a growing firm that not only provides sustainable, smart building design, but is also known among its clients as being a favorite firm to work with."

Keirstan worked as an engineer and project manager for a utility company before coming to Petersen. In her role here, she manages a team of eight mechanical and electrical designers, in addition to serving as a mechanical designer herself. Since joining Petersen, she has worked on a wide variety of projects, including assisted living, multifamily, mixed-use commercial/residential (including commercial kitchen work), institutional projects, and tenant fit-outs.

Keirstan’s interest in energy efficiency and sustainability developed while completing case studies on the Massachusetts Department of Energy Resources Schools and Public Housing Integrating Renewables and Efficiency (SAPHIRE) program as part of her Interactive Qualifying Project (IQP) at Worcester Polytechnic Institute. This interest grew with the completion of her Major Qualifying Project (MQP), which paired geothermal heat pump design with a consideration for business feasibility.

She has a BS in mechanical engineering and an MS in management from Worcester Polytechnic Institute. She is an Engineer-in-Training, working toward becoming a licensed Professional Engineer.

When Keirstan is not at work you will find her
  • Surfing at Jenness Beach
  • Walking downtown in Portsmouth
  • Spending quality time with friends and family

Maddie Goldberg

Mechanical Designer

"The Petersen Engineering team is dedicated to creating an encouraging and trusting office environment, and it shows in the quality of work we produce. I’m proud to learn something new every single day here, and it’s refreshing to work with a firm that values sustainability at its core."

Before joining Petersen Engineering, Maddie worked at TLC Engineering Solutions and Wadsworth O’Neal Associates, both MEP/FP firms in Fort Myers, FL. Maddie developed an interest in building science while studying at Union College in Schenectady, NY: while completing a mechanical engineering degree, she became invested in understanding the details of the construction of the campus’s new buildings. Since joining Petersen Engineering, Maddie has continued to pick up new skills and has gained experience designing HVAC and plumbing systems for large buildings, primarily focusing on multifamily housing.

Maddie is working toward completing the FE exam in order to become an Engineer-in-Training.

When Maddie is not at work you will find them
  • Playing Dungeons and Dragons with friends
  • Cooking something new and exciting
  • Out walking in the woods

Adrienne Harris

Mechanical Designer

"Petersen Engineering has provided me with the opportunity to grow as both an engineer and a humanitarian. As an emerging professional, I am so excited to be a part of this knowledgeable, kind, and highly skilled team."

Adrienne joined Petersen Engineering as a mechanical designer, and has been involved in a wide variety of project types including multifamily residential, healthcare/assisted living, school-to-residential conversions, and mill-to-residential conversions.

In addition to her engineering work, she has been instrumental in implementing our social media strategy. Prior to joining the firm, Adrienne studied at the University of New Hampshire, where she focused her senior project on renewable energy. Her passion for energy efficiency and sustainable design is why she decided to join Petersen.

Adrienne has completed courses in angel investing and venture research, small business planning and management, and digital imaging technology, and has taken on special projects within the firm to build on these interests. She is also very passionate about volunteering, and has spearheaded Petersen Engineering’s recent involvement in the Portsmouth community, in addition to implementing our social media strategy. She looks forward to helping Petersen Engineering establish long lasting relationships with local non-profit organizations.

Adrienne earned a BS in mechanical engineering from the University of New Hampshire. She is currently working toward becoming an Engineer-in-Training.

When Adrienne is not at work you will find her
  • Playing with her puppy Dilly
  • Shopping at Marshalls
  • Watching Wheel of Fortune and Jeopardy with her parents

Maxwell Hatheway

Electrical Designer

"My excitement continues to grow with all the opportunities Petersen Engineering has given me."

Max joined Petersen Engineering the day after his graduation. He was the first new hire for the newly developed Electrical Engineering Department at Petersen Engineering. Prior to his role here, Max interned at a defense contractor where he was exposed to a large-company atmosphere. Here, Max enjoys working alongside the senior electrical engineers, who add to the learning and progression of his career in this industry. He finds the small and close-knit environment beneficial not only to the work atmosphere, but his continuous education as an electrical designer.

Max graduated from Merrimack College with a BS in electrical engineering. He is working toward becoming an Engineer-in-Training.

Ted Hetzel, PE

Mechanical Project Engineer

"I enjoy working at Petersen Engineering because there is a commitment to improve building performance on every project that we do. Working here, I’m exposed to a wide variety of project types, new design approaches and endless opportunities to learn new skills."

Ted’s interest in building science and energy efficiency led him to a career path in high performance buildings. After an internship at the Northeast Sustainable Energy Association (NESEA), he began his career here at Petersen, where he enjoys the opportunity to continually expand his skills. Prior to Petersen, Ted was involved with a design project to improve the heating and ventilation systems for a 1,000 sq ft greenhouse which is used to demonstrate energy efficient technologies on campus at Greenfield Community College. At Petersen Engineering Ted has worked on a variety of project types, including affordable multifamily, Passive House, occupied rehab, senior housing, and laboratory projects.

Ted graduated from the University of Vermont with a BS in civil engineering, and earned a certificate in renewable energy/energy efficiency from Greenfield Community College. Ted is a licensed Professional Engineer in New Hampshire, LEED Accredited Professional, and a Certified Passive House Consultant.

Certified Passive House Consultant

Adam Kohler, PE

Senior Mechanical Engineer/Project Manager

"I feel lucky to work for a company with such strong values and I’m thankful for the opportunity to work with a team of great people to provide best-in-class design services for our clients."

Adam has spent his career working to make buildings more energy efficient. He began as an applications engineer for a controls contractor designing building automation systems for commercial buildings, followed by a position as a mechanical engineer for another consulting firm where he designed high performance HVAC systems for buildings in northern New England, including a variety of Net-Zero Energy, LEED, and Living Building Challenge-accredited buildings. Most recently he served as the Campus Energy Manager for the University of New Hampshire where he was responsible for energy procurement, optimizing the production of energy at the CHP plant, and leading a variety of energy efficiency retrofit projects including a back-pressure steam turbine, a biomass-fired district heating plant and a variety retro-commissioning and lab airflow optimization.

At Petersen Engineering, Adam enjoys collaborating with architects, owners, and contractors to deliver practical, reliable, and efficient systems for a wide variety of building and project types.

Adam has a BS in mechanical engineering and an MBA from the University of New Hampshire. He is a licensed Professional Engineer in New Hampshire, a LEED Accredited Professional, and a Certified Energy Manager.

Doug Kumph, PE

Senior Manager, Operations

"I’m passionate about organizational development and at Petersen Engineering I’m enjoying the opportunity and challenge of growing an organization that is firmly committed to advancing both sustainable organizational growth and engineering practices."

Doug started his career in the MEP/FP industry working at Petersen Engineering, then left to work as director of operations for several engineering and commissioning firms, before returning to Petersen. His experience includes operations, business, project and team management, design, and commissioning of building mechanical, electrical and plumbing systems.

Doug received a BS in chemical engineering from the University of New Hampshire and an MS in organizational leadership from Southern New Hampshire University, earning the outstanding student award. He is a licensed Professional Engineer in Massachusetts, Maine, and New Hampshire, a LEED Accredited Professional, and a Certified Passive House Consultant.

When Doug is not at work you will find him
  • Being Outdoors
  • Biking, walking, skiing
  • Visiting his two boys
Certified Passive House Consultant

Rocky Marcus

Electrical Project Engineer

"The people at PEI are very welcoming and enthusiastic to help. I’m excited to join the team and work together on innovative, sustainable designs."

Rocky started his career in electrical design with a firm in Honolulu, working on a wide variety of projects from public and private schools to airports and wastewater, as well as supporting the Honolulu Rail Transit Project. A few months before the outset of the COVID-19 pandemic, he joined an MEP firm in New York City, a move that was ill-timed but that landed him in the Northeast. At Petersen, he is happy to join a talented team of engineers with a common goal of designing buildings that will reduce our carbon footprint.

Rocky has a MS in electrical engineering from University of Colorado at Boulder, and a BA in mathematics from Colorado College. He is currently working toward becoming an Engineer-in-Training.

When Rocky is not at work you will find him
  • Dancing
  • Playing board games
  • Playing guitar

Jennifer Marrapese

Chief Revenue Officer

"I’ve collaborated with James and his team for more than 10 years and have long admired their professionalism, commitment to sustainability, and holistic approach. I’m delighted to help position us for further growth by recruiting the best talent and making Petersen Engineering the best place our employees have ever worked."

Before joining Petersen Engineering, Jennifer served as executive director of NESEA, the Northeast Sustainable Energy Association for a decade. After leaving NESEA, Jennifer served as director of search services for an executive search firm in Western Massachusetts, where she focused on executive search services and business development for the nonprofit and business community. She also headed the company’s internal diversity committee, and advised clients on their diversity and inclusion practices. She is an entrepreneurial, mission-based leader with a passion for building high-functioning, inclusive teams.

Jennifer has a BA in journalism from the University of Wisconsin-Madison, an MA in organizational development and management from Fielding University, and a JD from the University of California, Berkeley. She serves as board treasurer for the Center for EcoTechnology, a board member of Camp Howe, and as chair of the Deerfield Local Cultural Council.

When Jennifer is not at work you will find her
  • Trying to perfect her downward dog
  • Inventing a new recipe to use up her CSA veggies
  • Thrifting with her daughters
NESEA Lifetime Member

Sara Martin

Office Coordinator

"I look forward to using my organizational superpowers to keep Petersen Engineering running like a well-oiled (carbon neutral) machine."

Having spent most of her working career in the nonprofit and theater industry, the events of 2020 allowed Sara to shift gears and learn something new. She is applying her extensive experience as a stage manager and production manager, as well as her development knowledge and organizational skills to help the Petersen team work as efficiently as possible. She is excited to bring her background in the creative arts viewpoints to the office. When not in the office, Sara continues to work as a stage manager for local Seacoast theaters.

Sara graduated from the University of New Hampshire with a BA in theater and deaf studies.

When Sara is not at work you will find her
  • Stage Managing for local Seacoast theaters
  • Taking a nap with her 2 cats, Biscuit and Chai
  • Hiking, paddle boarding, and having other outdoor adventures

Hung Ming (Jason) Ngai, PE

Senior Mechanical Project Engineer

"Our work includes more challenge and diversity than mechanical engineering design and drafting. Collaborative interactions with architects, other engineers, and contractors diversifies and expands our engineering experience."

Prior to joining Petersen Engineering, Jason worked as an assistant to the facilities manager of a Vermont hospital. This, along with being exposed to different aspects of building architectural design and engineering as an undergrad, trained him to not only think as an engineer, but also to understand the perspectives of other project team members.

Jason has detailed mechanical design work and construction administration for variety of projects. He enjoys designing effective, energy efficient, and innovative mechanical systems while utilizing the skills he obtained from his hands-on style courses in college.

Jason received a BS in architectural engineering technology and a BS in sustainable design and technology from Vermont Technical College. He is a licensed Professional Engineer in Maine, as well as a LEED Green Associate, working toward his LEED Accredited Professional credential.

Thomas Perkins

Mechanical Designer

"A forward-thinking, well-respected company like Petersen Engineering, with people committed to providing positive experiences and progressive design, creates a great atmosphere for an emerging professional like me to contribute and learn."

Prior to working here, Tom was studying at the University of New Hampshire, where he interned with a small sustainability consulting firm that sparked a passion for sustainable design. At UNH, Tom had the opportunity to work on two projects that further drove his interest in energy efficiency and building design: the design of a small Net-Zero Energy home, and the development of a high-performance, affordable housing community. Since joining Petersen Engineering, Tom has had the opportunity to work on a variety of projects including affordable housing communities, historical renovations, and laboratory projects.

Tom has a BS in mechanical engineering from the University of New Hampshire.

James Petersen, PE

Founder and Principal

"We work hard and smart for our clients to serve each project’s goals and achieve superior outcomes."

James began his career in building systems in 1986 and founded Petersen Engineering, Inc. in 1992. He has always had a passion for energy efficiency and is an industry leader in advancing sustainability, high-performance building, and building a zero-carbon future. With his holistic philosophy for the design of buildings James leads and collaborates with project teams to optimize the integration of MEP/FP systems with architecture, sites, building enclosures and building science fundamentals.

James is a licensed Professional Engineer in Massachusetts, New Hampshire, Connecticut, New York, New Jersey, Maine, Vermont, and the District of Columbia. He received a BS in mechanical engineering and a BA in philosophy from the University of New Hampshire. He is also a lifetime member and leader in Northeast Sustainable Energy Association (NESEA) having served as chair of the board of directors, and co-chair of the Boston Building Energy Conference. James presently serves as co-chair of the Citizen Response Task Force, a 21-person committee charged with making recommendations to Portsmouth city officials related to COVID-19.

NESEA Lifetime Member

Mark Prendable

Senior Electrical Engineer/Project Manager

"It doesn’t take long to realize what makes Petersen stand out. Our leadership, progressive culture, commitment to sustainable design, and pride in client satisfaction is second to none. I’m excited to be a member of such a great organization."

Mark works directly with clients and oversees electrical design work to ensure a product that meets project goals. He enjoys coordinating with the design team and working with contractors to overcome construction challenges. Mark believes having clear communication and creating good relationships with the project team is as important as the engineering design.

Prior to coming to Petersen, Mark worked as an associate for an engineering firm for 15 years, where he gained project management and electrical engineering experience in a broad range of markets including multifamily residential, hospitality, healthcare, college universities, commercial, laboratory, and retail.

Mark has an AS in electrical engineering technology from Benjamin Franklin Institute of Technology, and has continued his education with electrical courses at Northeastern University.

When Mark is not at work you will find him
  • Doing activities with his children
  • Fishing
  • Reading

Christine Thomas, PE

Project Manager

"I’m excited to join the Petersen Engineering Team to help implement innovative building system design solutions that will result in positive impacts for future generations."

Christine’s passion for working in a collaborative design environment and interest in innovative building systems solutions led her to Petersen, where she works as a project manager. Prior to that role, she spent more than a decade working in the power generation field, as a mechanical systems design engineer and in regulatory compliance and project management. Christine’s diversified experience as an engineer and a project manager allows her to bridge the gap between audiences from varying technical disciplines and levels of expertise. Both in and outside of work, Christine is passionate about connecting with people, taking a data-driven approach, and conquering goals.

Christine has a BS in chemical engineering from Worcester Polytechnic Institute and is a licensed Professional Engineer in New Hampshire.

When Christine is not at work you will find her
  • Visiting every playground within a 60 mile radius with her husband and their 3-year old daughter
  • Hiking in the mountains of New Hampshire
  • Hitting the trails on her mountain bike

Gabi Tobin

Electrical Project Engineer

"It was evident from early conversations that this is no ordinary group of people. I am thrilled to be joining a team of respected professionals with a wealth of technical knowledge and a passion for contributing and impacting the world around them."

Before joining Petersen, Gabi spent 8 years as an electrical project engineer at a consulting MEP firm in Colorado. She brings with her a diverse range of knowledge in project management, electrical engineering design and construction administration. She has project experience in education, public transit, churches, clinics, office/retail and multifamily residential. She enjoys the multidisciplinary coordination that goes into each project and loves working with and meeting new people.

Gabi has a BS in architectural engineering from the University of Colorado at Boulder, and is currently studying for the Fundamentals in Engineering exam. She lives in Colorado and works at Petersen remotely.

When Gabi is not at work you will find her
  • Trying to find something to build, paint, or refurbish
  • Doing something outdoors, playing sports, riding her Harley, fishing or just relaxing
  • And her favorite of all, hanging and enjoying time with her husband, their 2 boys, and their English Bulldog

Michael Trickett, PE

Senior Manager, Electrical

"The company’s reputation for professional friendly service, its sustainable design philosophy and collaborative environment is what drew me to Petersen Engineering and I want to build on those qualities."

Michael’s career as an electrical engineer and project manager in the MEP/FP business has spanned over 35 years. Michael has experience in a variety of building types including healthcare/hospital, higher education, high-rise buildings, multi-family housing, laboratories and office buildings. Michael brings practical knowledge of the electrical systems and their installations from experience as a field electrician early in his career.

Michael thrives on working with design team members to produce tightly coordinated documents that exceed clients’ expectations. He enjoys the challenge of difficult projects that require finding solutions that are practical and simple.

Michael is a licensed Professional Engineer in Massachusetts, Maine, New Hampshire, Connecticut, Maryland, and Virginia. He received an AS in electrical engineering from Northeastern University and an AAS in applied science from Chamberlayne Jr. College.

When Michael is not at work you will find him
  • Taking nature hikes near his house
  • Walking along the Cape Cod Canal
  • Enjoying local restaurants and craft beer

Belkis Vergara

Mechanical Co-op

"I am proud to be part of a company that not only provides a positive and collaborative work environment, but also focuses on smart and sustainable design."

Belkis recently joined Petersen Engineering for her first internship. She has an interest in energy systems and sustainability, which led her to apply to Petersen. Previously she has both volunteered and worked for organizations that focus on sustainability. She is eager to develop the necessary technical and professional skills needed for her role and beyond.

Belkis is currently a student at Northeastern University working toward a degree in mechanical engineering.

Mary Vinagro

Controller

"I am very excited to be a part of the Petersen Engineering team and look forward to helping the company grow. The dedication to smart, sustainable design and customer satisfaction sets us above the competition."

Prior to joining Petersen, Mary gained extensive experience as a financial controller in the commercial construction, manufacturing, service and supply industries, in both start-ups and multi-million-dollar entities. Her objectives here at Petersen include streamlining business operations to increase efficiency and promote growth.

Mary has an MBA from Southern New Hampshire University.

Peter Wingate, EIT

Mechanical Designer

"I am excited to be joining Petersen Engineering, bringing my passion for sustainability into my work and look forward to continuing to be challenged as the industry grows and develops."

Prior to joining Petersen Engineering as a mechanical designer, Peter worked as a mechanical engineer at Portsmouth Naval Shipyard. Peter’s passion for sustainability began during his senior year at the University of New Hampshire. As part of his capstone project, Peter worked on the Living Bridge Project located at Memorial Bridge, which connects Portsmouth, NH and Kittery, ME. He was a lead member of a team that developed a scaled model of the tidal turbine and adjacent pier. The turbine generates renewable energy that powers the bridge sensor network and information communication system. Since joining Petersen Engineering, Peter has gained experience working on affordable, multifamily buildings and as well as a greater understanding of the challenges involved designing effective and energy efficient mechanical systems for them.

Peter graduated from the University of New Hampshire with a BS in mechanical engineering. He is an Engineer-in-Training, working toward becoming a licensed Professional Engineer.

When Peter is not at work you will find him
  • Hanging out with his two goldendoodles
  • Playing the piano
  • Hiking the 52 with a view and 48 4,000 footers