Mechanical Engineer - Data Centers / Mission Critical

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FSB is a full-service Architecture and Engineering firm in Oklahoma City, OK / OKC, built on over 80 years of design excellence, technical innovation, and community impact . As digital infrastructure rapidly evolves, FSB is expanding our expertise in mission critical facilities, data center design, high-performance buildings, and mechanical infrastructure , and we're seeking Mechanical Engineers, MEP Engineers, and HVAC Design Engineers who are excited by complex systems that support cloud computing, AI infrastructure, hyperscale data centers, colocation facilities, and critical operations .

We are currently seeking Mechanical Engineers at multiple levels, from entry-level to senior leadership, to join our growing mission critical engineering team. Whether you're beginning your career, advancing into project leadership, or bringing extensive experience delivering complex infrastructure projects, FSB offers the opportunity to help design the next generation of high-performance data centers and mission critical facilities.

Our engineers play a key role in creating resilient, scalable, and energy-efficient environments that support the rapidly evolving demands of cloud computing, AI, hyperscale infrastructure, and critical operations. From advanced cooling strategies and redundancy planning to high-density infrastructure coordination, you'll work on projects where reliability, uptime, and performance are essential.

At FSB, you'll collaborate closely with architects, electrical engineers, technology specialists, and multidisciplinary teams to deliver innovative data center solutions for hyperscale, enterprise, colocation, and edge computing clients while also supporting select aviation, federal, commercial, civic, and tribal projects.

If you're passionate about engineering systems that support critical operations and emerging technologies and you're ready to grow with a team that values innovation, collaboration, and technical excellence, we invite you to apply.

Responsibilities

• Design and document mechanical and MEP systems for mission critical facilities and data centers, including HVAC systems, chilled water systems, CRAH/CRAC units, cooling plants, plumbing, building automation systems, and control systems.
• Support the development of resilient and energy-efficient infrastructure for high-performance facilities with a focus on uptime, redundancy, N+1 design, high availability, operational continuity, and energy efficiency.
• Produce drawings, specifications, diagrams, 3D models, sequences of operation, and technical reports aligned with project goals and client expectations.
• Perform engineering calculations including cooling load analysis, airflow analysis, energy modeling, equipment sizing, psychrometric analysis, and system redundancy evaluations.
• Coordinate closely with electrical engineers, technology consultants, and architects to integrate cooling systems, power infrastructure coordination, white space planning, and high-density mechanical infrastructure.
• Apply building codes, ASHRAE standards, energy codes, and industry best practices to deliver compliant and functional solutions.
• Participate in client meetings, technical design reviews, and multidisciplinary coordination efforts.
• Collaborate with internal teams, consultants, contractors, and owners to deliver integrated project outcomes.
• Support QA/QC efforts and construction administration activities, including submittal reviews, RFIs, commissioning coordination, site observations, and mechanical system startup support.
• Lead project documentation efforts, mentor junior staff, and oversee project deliverables (mid- and senior-level roles).

Skills & Attributes

• Strong communication and collaboration skills across disciplines and with clients.
• Critical thinking and creativity in solving complex infrastructure and design challenges.
• Adaptability and organization in a fast-paced, technically demanding environment.
• Mentorship mindset with a willingness to guide and support junior engineers.
• Strong written and verbal communication skills with attention to technical clarity and detail.
• Initiative in identifying innovative solutions and improving design and workflow efficiencies.
• Interest in emerging technologies, sustainability, and mission critical engineering trends.

Qualifications

Entry-Level / EIT

• Bachelor's or Master's degree in Mechanical Engineering.
• Engineer in Training / EIT certification, FE exam passed is preferred but not required.
• 0-3 years of experience.
• Interest or internship exposure in HVAC, mission critical systems, or building infrastructure preferred.

Mid-Level Engineer

• Bachelor's or Master's degree in Mechanical Engineering.
• FE exam passed and actively pursuing Professional Engineer / PE licensure preferred.
• 4+ years of progressive experience in mechanical system design.
• Demonstrated ability to lead design efforts and coordinate small to mid-scale projects.
• Experience with mission critical, data center, industrial, or high-performance facility projects is highly desirable.

Senior-Level Engineer

• Bachelor's or Master's degree in Mechanical Engineering.
• Active Professional Engineer / PE license required.
• 10+ years of progressive experience leading mechanical design and multidisciplinary coordination.
• Experience leading mission critical or data center projects, including redundant cooling systems and high-availability infrastructure, is strongly preferred.

Additional Qualifications

• Experience with Revit, BIM coordination, energy modeling, HVAC analysis software, Microsoft Office, and mechanical system documentation preferred.
• Strong understanding of mechanical building systems, MEP documentation, interdisciplinary coordination, building codes, ASHRAE standards, and construction administration.
• Experience in mission critical, data center, hyperscale, colocation, enterprise, edge computing, industrial, or high-performance facility projects is highly desirable.
• Familiarity with chilled water systems, direct expansion systems, CRAH units, CRAC units, cooling towers, air handling units, economizers, redundancy strategies, commissioning, thermal management, critical infrastructure, liquid cooling, and energy-efficient HVAC design is a plus.

Why FSB

At FSB Architects + Engineers, we believe great design comes from great teams. Whether you're an engineer just beginning your journey or a seasoned professional leading complex infrastructure projects, we value your expertise, perspective, and passion.

Our collaborative culture brings together architects, engineers, designers, and technical specialists to solve meaningful challenges and create environments that serve people and communities - including the critical infrastructure driving tomorrow's digital world.

Join our inclusive community of architects, engineers, and creatives and help us design resilient environments that inspire progress, support innovation, and stand the test of time.

Relevant Skills & Experience: Mechanical Engineering, Data Center Design, Mission Critical Facilities, HVAC Design, Cooling Systems, Chilled Water Systems, CRAH, CRAC, Cooling Load Analysis, Revit, BIM, Energy Modeling, Redundancy, Uptime, Commissioning, Construction Administration, Oklahoma City.

Frankfurt-Short-Bruza Associates, P.C. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, genetic information, or any other characteristic protected by federal, state, or local laws.