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Senior Mechanical Engineer
Budderfly. Develop designs and scopes of work for Ultra-High-Performance (UHP) projects, including load calculations, ventilation and air balance, equipment selection and sizing, refrigerant piping and schedules .
Posted 10/16/2026full-timeRemote • Connecticut • United StatesSenior💰 $110,000 - $130,000 per yearWebsite
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in commercial HVAC engineering, focusing on Ultra-High-Performance projects, including load calculations, ventilation design, and equipment selection. Proficient in collaborating across teams and managing multiple priorities while ensuring technical quality and compliance with industry standards.
Highest-signal resume keywords
Commercial HVAC Engineering ExperienceLoad Calculation and Equipment SelectionVentilation Design (ERV and DOAS)Proficiency with Load Calculation SoftwareKnowledge of ASHRAE Standards
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
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Hard Skills
Load CalculationVentilation DesignEquipment SelectionRefrigerant PipingVRF DesignHeat Pump DesignHydronic Systems EngineeringEnergy ModelingTechnical Quality ControlInstallation and Commissioning Support
Soft Skills
Clear Written CommunicationAbility to Explain Technical ConceptsCollaboration Across TeamsManaging Multiple PrioritiesMentoring and Growth Support
Tools & Technologies
Load Calculation SoftwareBACnetModbusBuilding Automation Systems
Certifications & Qualifications
PE LicenseCEMLEED AP
Industry Keywords
Ultra-High-Performance ProjectsASHRAE 62.1ASHRAE 90.1ASHRAE 15International Mechanical CodeUtility Incentive ProgramsEnergy Savings CalculationsCommercial HVAC Fundamentals
Tech Stack
Tools & technologiesIoT
About the role
Key responsibilities & impact- Develop designs and scopes of work for Ultra-High-Performance (UHP) projects, including load calculations, ventilation and air balance, equipment selection and sizing, refrigerant piping and schedules
- Design ERV and DOAS ventilation systems for UHP sites
- Develop and maintain design standards for repeatable site types
- Perform technical quality-control reviews of UHP designs and scopes of work
- Coordinate with third-party MEP firms when stamped documents are required
- Evaluate VRF applications based on payback and incentives
- Support installation, commissioning and post-install troubleshooting
- Collaborate with IoT and Technology on controls requirements and review OEM sequences of operation
- Engineer complex hydronic systems, including cooling towers, as needed
- Support other HVAC projects such as packaged rooftop unit replacements
- Prepare engineering bases for energy savings calculations and utility incentive applications
- Help evolve load calculation and equipment selection software tools
- Collaborate with IoT, Technology, Performance Analysis, Service, Project Management and Project Engagement teams
- Support mentoring and growth of engineers
Requirements
What you’ll need- BS in Mechanical Engineering or a closely related field
- 7+ years of commercial HVAC engineering experience
- Record of delivering engineered solutions ranging from full design packages to clear, contractor-ready scopes of work
- Hands-on VRF and heat pump design experience, including equipment selection, refrigerant piping and load calculations
- Ventilation design experience, including ERV or DOAS systems and air balance
- Experience supporting installation and commissioning
- Proficiency with load calculation and equipment selection software
- Working knowledge of ASHRAE 62.1 and 90.1, ASHRAE 15, and the International Mechanical Code
- Solid grounding in commercial HVAC fundamentals, including packaged rooftop units
- Familiarity with energy modeling or efficiency analysis, and utility incentive programs and their documentation
- Clear written communication and ability to explain technical concepts to non-engineers and work across teams, contractors and manufacturers
- Ability to manage multiple priorities in a fast-paced, changing environment
- Preferred: working knowledge of BACnet, Modbus and building automation systems; experience designing sequences of operation; complex hydronic systems including cooling towers; PE license; multi-site portfolios; CEM, LEED AP or similar certifications
Benefits
Comp & perks- Medical insurance
- Dental insurance
- Vision insurance
- 401(k)
- Life insurance
- Disability insurance
- Career growth and advancement opportunities
- Competitive pay
- Supportive company environment
- Opportunity to work as part of a team that values its members