At United Integrated Services (UIS), we build more than facilities—we build the infrastructure that enables technologies to shape the future. As a global engineering and construction company specializing in the semiconductor industry, UIS brings together talented people, technical expertise, and innovative solutions to deliver the most complex and critical projects in the industry.

Our U.S. team is helping build the next generation of advanced semiconductor manufacturing facilities, working alongside some of the world's leading technology companies. Our work requires precision, collaboration, accountability, and a commitment to doing things the right way—from the planning and engineering stages through construction and project completion.

As UIS continues to grow, we are building more than projects. We are building teams, developing careers, and creating opportunities for talented professionals to make a meaningful impact. If you are looking for an opportunity to work on challenging projects, grow your career, and be part of something bigger, we invite you to build the future with UIS.

WHAT WE OFFER

Comprehensive Benefits – Medical, Dental, Vision, Short-Term Disability (STD), Long-Term Disability (LTD), and Life Insurance provided at no cost to employees.
Competitive Compensation – Competitive salaries and opportunities for performance-based incentives.
Career Growth – Opportunities to develop your skills, take on new challenges, and grow with a rapidly expanding organization, supported by education reimbursement for eligible employees pursuing continued learning and professional development.
Meaningful Work – The opportunity to contribute to some of the most advanced semiconductor construction projects in the country.
Collaborative Environment – Work alongside experienced professionals across engineering, construction, project management, safety, procurement, and operations.

Summary: The Firestop Installer installs and repairs firestop systems in rated walls, floors, and joints on active construction sites. The role requires hands-on installation experience, practical knowledge of STI, 3M, and Hilti firestop products, and the ability to read and follow UL system drawings and Engineering Judgment (EJ) details.

Essential Duties and Responsibilities include the following. Other duties may be assigned.

Install firestop systems for penetrations and joints in rated walls and floors as detailed in approved project documents.
Install STI, 3M, and Hilti firestop products in accordance with the approved system and product instructions.
Read and follow UL-listed firestop system drawings and the listed installation requirements.
Read and follow applicable Engineering Judgment (EJ) details and report field differences to the supervisor.
Inspect openings, penetrants, sleeves, and substrates before installation to confirm they match the approved system.
Measure openings and annular spaces; prepare surfaces as required by the approved firestop system.
Install backing materials and firestop components, including sealants, mortar, putty, wraps, collars, or pillows as specified.
Apply firestop materials to the specified depth and configuration using the required tools and methods.
Coordinate access and work sequence with supervisors and other trades.
Inspect completed work for gaps or missed areas and correct installation issues as directed.
Document completed work, locations, system details, and photographs when required.
Protect adjacent equipment, finishes, and installed work from damage or contamination.
Operate hand and power tools safely for firestop preparation and installation.
Handle and stage firestop materials in accordance with product instructions and site requirements.
Check product labels and condition; report damaged or expired materials before use.
Work from ladders or elevated surfaces when assigned and use required fall-protection equipment.
Keep the work area clean and remove firestop waste and debris in accordance with site procedures.
Enter confined spaces only when authorized, trained, and covered by applicable permit and safety procedures.