Senior Mechanical Engineer | Mission Critical

Plan B Climatech; United States; Hybrid; USD 130,000 - 190,000; Full time

Benefits offered by this job

Competitive salary and benefits

Partial ESOP

Path to partnership

Professional development

Job summary

Plan B Climatech seeks a Senior Mechanical Engineer to lead our data center mechanical team, based in Dallas or remotely within the US. You will own the design from basis of design through construction, oversee cooling systems including CHW plants, CRAC/CRAH units, and air handling, and mentor engineers to raise standards.

You will partner with electrical, controls, FP, and BIM/VDC specialists, guide energy modeling and system selection for reliability and efficiency, and drive client

Qualifications

• 8+ years of progressive mechanical engineering experience with a strong mission critical / data center focus.

Responsibilities

• Lead mechanical design from basis of design through construction documents and construction administration.

Skills

Leadership

Mechanical design

Energy modeling

BIM/VDC

Mentoring

Client engagement

Revit

AutoCAD

Education

Bachelor's degree in Mechanical Engineering

Tools

Revit

AutoCAD

CFD tools (IES, Trane TRACE, Carrier HAP)

Job description

Senior Mechanical Engineer - Mission Critical

Dallas TX or Remote (US-based) | Full-Time | Salary range TBC

Plan B is retained exclusively by a leading multi-discipline building systems consultancy - a recognised expert in Mission Critical, Science & Technology, and Industrial sectors with 30+ years delivering high-performance engineering solutions - to find a Senior Mechanical Engineer to lead and grow their data center mechanical team.

This is a senior technical leadership role on hyperscale and mission critical data center programmes, with real ownership over the mechanical practice and the team behind it.

The Role:

• Lead mechanical design from basis of design through construction documents and construction administration
• Direct cooling system design - chilled water plants, CRAC/CRAH units, air handling, piping distribution, and heat rejection systems
• Own HVAC design for mission critical and support spaces, including redundancy and resiliency strategy
• Lead energy modeling and system selection to balance efficiency, reliability, and cost
• Drive interdisciplinary coordination across electrical, controls, FP, structural, and BIM/VDC teams
• Lead and grow a team of mechanical engineers - mentoring, reviewing work, and building repeatable design standards
• Lead client and contractor engagement - design reviews, RFIs, submittals, and field issue resolution

What our client is looking for:

• Bachelor's degree in Mechanical Engineering (or equivalent)
• 8+ years of progressive mechanical engineering experience with a strong mission critical / data center focus
• Hyperscale data center experience strongly preferred
• Proven experience leading or mentoring a team of engineers
• Solid knowledge of ASHRAE standards, building codes, and mechanical safety principles
• Proficiency in Revit and/or AutoCAD; comfortable in BIM/VDC workflows
• Strong communicator, able to lead technical discussions with clients, utilities, and contractors
• PE licence (or actively working toward one)
• Familiarity with TIA-942 and data center resiliency/tier concepts
• Experience with energy modeling or CFD tools (IES, Trane TRACE, Carrier HAP or similar)
• Fast-track, design-assist, and complex phasing experience

What's on offer:

• Competitive salary + comprehensive benefits
• Partial ESOP - share in the company's success
• Structured path to partnership / leadership
• Genuine investment in your professional development - training, industry events, CPD, and more