Sr. Mechanical Specialist

EEI; Mirbister; On-site; GBP 89,000 - 118,000; Full time

Benefits offered by this job

Employee Stock Ownership Plan (ESOP);

Health, dental, and vision insurance

Health Savings Accounts (HSAs)

Company-paid LTD, STD, and basic life

Voluntary life, accident coverage, etc

Profit-sharing + bonuses

401(k) with company match

Milestone Travel Award

Paid certifications

Professional development opportunities

Job summary

EEI, an employee-owned company, is seeking a Sr. Mechanical Specialist to lead commissioning, testing, troubleshooting, and documentation for mechanical systems in mission-critical facilities. You will work with project teams, clients, and vendors to deliver reliable outcomes.

This role emphasizes field execution, startup support, and mentoring junior specialists. Travel up to 75%, hybrid office/field work, and lifting up to 50 lbs. Strong communication and problem-solving are essential.

Qualifications

• 6+ years of experience in mechanical systems and commissioning, facilities operations, engineering, construction, or related field.
• Advanced working knowledge of HVAC systems, chilled water systems, cooling infrastructure, controls, and related mechanical equipment.
• Ability to read and interpret drawings, specifications, sequences of operation, technical documentation, trend data, and system information.
• Advanced understanding of MEP systems, controls, and integrated building operations.
• Ability to lead assigned commissioning activities, guide field execution, and elevate complex technical or project issues appropriately.
• Strong troubleshooting, quality assurance, communication, documentation, coordination, and teamwork skills.
• Proficiency with Microsoft Office Suite and commissioning documentation tools or project software.
• Currently authorized to work in the U.S. full‑time.

Responsibilities

• Lead complex commissioning, testing, and verification activities for mechanical systems supporting mission-critical facilities and data centers.
• Guide field execution, functional performance testing, startup support, and closeout activities across assigned mechanical scopes.
• Troubleshoot complex mechanical system issues and drive practical resolution with project teams, contractors, vendors, and stakeholders.
• Review drawings, specifications, trend data, test results, and system information to evaluate readiness and performance.
• Communicate commissioning status, risks, findings, and recommendations clearly with clients, contractors, and internal project teams.
• Mentor Mechanical Specialists and Mechanical Support team members through field coaching, documentation review, and knowledge sharing.
• Contribute to safe, reliable, and high-quality project delivery in fast-paced mission-critical environments.

Skills

Mechanical systems

HVAC systems

Troubleshooting

Documentation

Communication

MS Office

Teamwork

Education

Bachelor’s degree in Mechanical Engineering

Tools

Commissioning tools

Documentation software

Project software

Job description

At EEI, we believe in doing things the right way, with excellence, integrity, and genuine care for our people. As an employee-owned company, our People First culture is rooted in trust, accountability, and shared success.

As a Sr. Mechanical Specialist for EEI’s Mission Critical team, you will lead complex commissioning, testing, troubleshooting, and documentation activities for mechanical systems in data centers and other high-reliability facilities. You will work closely with project leadership, clients, contractors, and technical team members to help deliver reliable, high‑quality commissioning outcomes.

In this role, you will guide field execution, support complex functional performance testing, drive issue resolution, and mentor developing mechanical commissioning professionals. This position is ideal for an experienced mechanical commissioning professional who enjoys solving complex field challenges, leading project‑level execution, and helping teams succeed in mission‑critical environments.

• Lead complex commissioning, testing, and verification activities for mechanical systems supporting mission‑critical facilities and data centers.
• Guide field execution, functional performance testing, startup support, and closeout activities across assigned mechanical scopes.
• Troubleshoot complex mechanical system issues and drive practical resolution with project teams, contractors, vendors, and stakeholders.
• Review drawings, specifications, trend data, test results, and system information to evaluate readiness and performance.
• Communicate commissioning status, risks, findings, and recommendations clearly with clients, contractors, and internal project teams.
• Mentor Mechanical Specialists and Mechanical Support team members through field coaching, documentation review, and knowledge sharing.
• Contribute to safe, reliable, and high‑quality project delivery in fast‑paced mission‑critical environments.

Qualifications:

Required

• 6+ years of experience in mechanical systems, commissioning, facilities operations, engineering, construction, maintenance, or a related technical field.
• Advanced working knowledge of HVAC systems, chilled water systems, cooling infrastructure, controls, and related mechanical equipment.
• Ability to read and interpret drawings, specifications, sequences of operation, technical documentation, trend data, and system information.
• Advanced understanding of MEP systems, controls, and integrated building operations.
• Ability to lead assigned commissioning activities, guide field execution, and elevate complex technical or project issues appropriately.
• Strong troubleshooting, quality assurance, communication, documentation, coordination, and teamwork skills.
• Proficiency with Microsoft Office Suite and commissioning documentation tools or project software.
• Currently authorized to work in the U.S. full‑time.

Preferred

• Bachelor’s degree in Mechanical Engineering, Facilities Management, and/or a related field preferred.
• Experience leading commissioning activities in data centers, mission‑critical facilities, healthcare facilities, building automation systems, controls integration, or high‑reliability environments.
• Hands‑on experience supporting functional performance testing, equipment startup, issue tracking, commissioning documentation, or project closeout activities.
• Relevant certification or active interest in professional development related to commissioning, building performance, or mission‑critical operations.

Certifications

• PE, LEED, CxA, PMP, and/or other equivalent certifications strongly preferred.

Working Conditions:

• Typical Travel: Up to 75%. Travel requirements vary by project and individual location.
• Work Environment: Hybrid environment of office and field‑based work for site visits. Site visits may include mission‑critical facilities, data centers, active construction environments, mechanical rooms, uneven ground, varying weather conditions, and field interactions.
• Physical Requirements: Must be able to perform site inspections, which may include walking project sites, climbing ladders, occasionally lifting and carrying up to 50 lbs, and working in confined spaces when needed. Reasonable accommodation may be provided.
• Reports to: Mechanical Lead or assigned project technical lead.
• Supervisory duties: This role is primarily an individual contributor and does not require direct supervisory responsibility unless assigned. The position is expected to provide project‑level technical guidance, field coordination, and mentorship to Mechanical Specialists, Mechanical Support personnel, and less‑experienced team members.
• Partners with: Works closely with EEI project teams, contractors, subcontractors, vendors, equipment manufacturers, project stakeholders, engineers, project managers, and senior technical team members across disciplines.
• Key Representative to: EEI clients, contractors, vendors, and project stakeholders.

About EEI:

EEI is a recognized leader in facility and energy consulting. We deliver innovative, performance‑focused solutions that maximize building performance, extend system lifecycles, and reduce utility costs. This dedication has earned us trusted partnerships with Fortune 500 organizations, national healthcare networks, prestigious universities, and leading government agencies.

Nationally recognized for building commissioning and building performance, EEI also provides facility assessments, master planning, energy audits, and technical program management, supported by specialty teams serving healthcare, data center, and mission‑critical facilities.

Learn more at https://eeibuildingperformance.com/

Taking care of our people is our highest priority. We’re committed to creating a workplace where our people are supported through meaningful connection, genuine care, and real opportunities to grow. That’s why we provide the benefits, tools, and resources our team needs to thrive and do their best work.

• Employee Stock Ownership Plan (ESOP); 100% employer funded
• Health, dental, and vision insurance
• Health Savings Accounts (HSAs)
• Company-paid LTD, STD, and basic life insurance
• Voluntary life, accident coverage, critical illness, and hospital indemnity insurance
• Profit‑sharing + discretionary performance bonuses
• 401(k) retirement plan with company match; 100% immediate vesting
• Milestone Travel Award (Every 5 Years)
• Paid certifications, seminars, and conferences
• Professional development opportunities

PEOPLE + BUILDING + PERFORMANCE

EEI is a proud equal opportunity employer. We value a diverse workforce and are committed to an inclusive culture. EEI does not discriminate based on race, color, ethnicity, ancestry, religion, sex, national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, gender expression, veteran status, or genetic information.

EEI participates in E-Verify and will provide the federal government with your completed Form I-9 to confirm your work authorization in the United States.