Senior Mechanical Engineering IV; Life Sciences

Senior Mechanical Engineering IV (Life Sciences)

posted on Sep 3

Who We Are: C1S Group is a design and construction firm based in Dallas, Texas with projects across the US. Since 2001, we've been designing and building around unknowns to improve the built environment. We are a family of construction and engineering professionals that provide construction management, field supervision, engineering design, and sustainability services to commercial and manufacturing facility owners. We are proud to have installed projects for Fortune 500 companies in the food & beverage, aerospace & defense, life science, and technology industries.

We are experts in our space, and our clients choose us because we stand by our work and deliver value every step of the way. This value driven relationship is what we're all about.

C1S has been ranked in Outside Magazine's List of the 50 Best Places to Work in America for 11 years, and most recently, Dallas Business Journal’s Top 100 Best Places to Work, because we put our people first. If we take care of our folks and make sure they’re doing what they love, they’ll take great care of our clients. This strategy has delivered exceptional results for 24 years.

If this sounds good to you, come join us. You can also check out our website to learn more about what makes us different from other GCs:  [for job boards other than C1S Careers]

The Difference You Will Make: If your idea of fun is balancing complex HVAC loads, solving GMP puzzles, and mentoring the next generation of engineers—while shaping facilities that drive innovation in pharma, biotech, and labs—then you might just be the Sr. Mechanical Engineer IV we’re looking for.

At C1S
, we don’t just design systems—we engineer environments where discoveries are made. As a Sr. Mechanical Engineer IV specializing in Life Sciences
, you’ll be the go-to expert, guiding teams through intricate renovations, coordinating across disciplines, and producing designs that don’t just meet codes but set new standards.

Lead the full spectrum of mechanical design: HVAC, plumbing, utilities, cleanroom systems, and beyond.

Translate complex requirements into construction documents that contractors trust and clients celebrate.

Mentor junior engineers, reviewing their work while pushing overall project quality to the next level.

Partner with project managers, architects, and trade partners to deliver seamless, compliant, and constructible designs.

Jump into the field—survey sites, troubleshoot, and ensure the design intent makes it from concept to commissioning.

Be the mechanical SME who clients and colleagues alike turn to for insight, clarity, and solutions.

Bachelor’s in mechanical engineering +
PE license (required).

10+ years of mechanical design experience for industrial/commercial renovations (ducts, pipes, equipment—you name it).

5+ years designing for Life Sciences facilities
—pharma, biotech, or labs—with deep knowledge of GMP.

Advanced plumbing design experience (because clean rooms aren’t the only things that need to stay spotless).

Expertise in Revit, retrofit solutions, and facility audits.

Cleanroom, data center, or mission-critical experience? That’s icing on the cake.

Leadership chops: mentoring, guiding, and elevating the team around you.

Impactful projects in industries that change lives.

A collaborative, forward-thinking team that’s got your back.

Opportunities to flex your technical expertise while mentoring the next wave of talent.

Travel occasionally (