Sr. Mechanical Technical Specialist

About Us

At Larson Design Group (LDG), we’re more than an award-winning Architecture, Engineering, and Consulting firm; we’re a team of passionate professionals united by a bold purpose: creatively shaping our world. From designing innovative solutions to building stronger communities, we approach every project with vision, collaboration, and a commitment to excellence.

As a 100% employee-owned company, every success we achieve belongs to all of us. That ownership mindset drives our decisions, inspires creativity, and fosters a culture where your voice matters. At LDG, you’ll find a dynamic, people-focused environment where we work hard, share knowledge, and celebrate wins together. We offer a flexible work environment, paid training for required licensure, competitive benefits, bonus plans, and a company-funded Employee Stock Ownership Plan (ESOP) all designed to support your growth, both professionally and personally.

Your Opportunity + Impact

The Senior Mechanical Technical Specialist collaborates closely with multidisciplinary design teams to support all phases of complex building and infrastructure projects within an Architecture and Engineering environment. Serving as a subject-matter expert in mechanical systems, this role is responsible for ensuring technical excellence, code compliance, and constructability of designs. The Senior Mechanical Technical Specialist provides leadership in the development of HVAC, plumbing, and mechanical systems, supports project teams in defining scope and fees for complex projects, and contributes to the successful delivery of high-quality, sustainable, and innovative engineering solutions.

Key Responsibilities

• Leads independent mechanical planning and design efforts, reviews the work of junior engineers and designers, prepares construction documents, and ensures successful project delivery.
• Provides technical leadership on complex projects, applying advanced expertise in HVAC, plumbing, and mechanical systems design throughout all phases of project development.
• Collaborates closely with architects, structural engineers, electrical engineers, and other disciplines to deliver fully coordinated and integrated design solutions.
• Maintains thorough knowledge of applicable building codes, industry standards, energy codes, and regulations, ensuring designs meet local, state, and federal requirements.
• Conducts QA/QC reviews of mechanical designs, calculations, and construction documents to ensure accuracy, consistency, and constructability.
• Supports project planning efforts by developing schedules, technical proposals, scope narratives, and labor-hour estimates for mechanical engineering services.
• Works with project teams to define, clarify, and communicate mechanical scope of work, identifying risks and technical challenges early in the design process.
• Promotes and implements quality assurance and quality control best practices to improve design outcomes and minimize errors or omissions.
• Performs and verifies mechanical design calculations, prepares technical specifications, and develops reliable cost estimates for mechanical systems.

• Education: Associate or Bachelor’s degree in a Technical discipline preferred.
• Experience: Minimum of twenty (20) years’ job-related experience. 
• Licensure/Certification: n/a

• Demonstrates a strong desire to expand knowledge and take on new responsibilities within the field. 
• Proficient in Revit, AutoCAD, and/or other discipline-specific programs preferred.
• Proficient in Microsoft Office Suite (Excel, Word, Power Point, Outlook). 
• Excellent organizational and time management skills to handle multiple tasks and meet project deadlines effectively. 
• Strong oral and written communication skills, with the ability to work independently as well as collaboratively within a project team. 

Larson Design Group, Inc. is an Affirmative Action and Equal Opportunity Employer (EEO) that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.