JP Cullen is seeking an experienced Mechanical Designer to support mechanical system design for building projects. This position is a pure design role, responsible for producing accurate, coordinated mechanical construction documents using Revit and other design software. The role works closely with engineers and project teams and does not require professional licensure.
Responsibilities- Develop mechanical system layouts and construction documents using Revit, IESVE and equipment selection software
- Produce detailed HVAC, process piping and building mechanical designs in accordance with project requirements and engineering direction
- Coordinate mechanical designs with architectural, structural, electrical, and plumbing teams
- Assist with BIM coordination, model updates, and clash resolution
- Incorporate redlines, markups, and design revisions accurately and efficiently
- Support multiple projects while meeting quality standards and deadlines
- Maintain organized, complete, and consistent design documentation
- Bachelor’s degree in Mechanical Engineering with at least two years of Design experience.
- Intermediate expertise and experience in the current release of AutoCAD and Revit
- Experience producing construction documents for industrial, commercial, institutional, healthcare, education, or similar building types
- Solid understanding of HVAC systems, components, and layouts
- Ability to design piping systems for various liquids and gases
- Ability to work from engineering direction and design criteria
- Strong attention to detail and drafting accuracy
- Effective communication and teamwork skills
At JP Cullen, we specialize in the “Tough Jobs” no one else can do. For more than 130 years, we’ve delivered complex, high-profile projects across healthcare, education, industrial, and commercial markets by investing in great people, strong teams, and continuous improvement. We’re a 5th generation, family-owned construction management firm that believes people do their best work when they’re supported, challenged, and trusted.
Our Mission: To identify, hire, train, and retain the best people to serve our customers.
Compensation & BenefitsJP Cullen has a commitment to its community, employees, and employees’ families. We offer outstanding benefits — Health Insurance, Dental, Competitive Pay and Bonus Structure, Profit Sharing, PTO, Holiday Pay, Employee Assistance, and Training.
EEOJP Cullen is an Equal Employment Opportunity/Affirmative Action (EEO/AA) Employer. We promote diversity by proactively recruiting, hiring, and promoting women, minorities, disabled individuals, and veterans. JP Cullen provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.
Skills Required
- Bachelor's degree in Mechanical Engineering
- At least two years of design experience
- Intermediate expertise with the current release of AutoCAD and Revit
- Experience producing construction documents for industrial, commercial, institutional, healthcare, education, or similar building types
- Solid understanding of HVAC systems, components, and layouts
- Ability to design piping systems for various liquids and gases
- Ability to work from engineering direction and design criteria
- Strong attention to detail and drafting accuracy
- Effective communication and teamwork skills
What We Do
J.P. Cullen is a longstanding, full-service construction company headquartered in Janesville, Wisconsin. The national contractor offers design-build, preconstruction, referendum, and related construction services, serving Wisconsin, northern Illinois, and northeast Iowa, as well as industrial clients nationwide. Its work spans government, education, healthcare, commercial, and industrial projects, ranging from $1,000 to more than $100 million, while emphasizing quality, integrity, and long-term partnerships.







