Senior Structural Engineer

iENG Design is seeking a qualified professional to join our Engineering team. iENG's method of engineering is unique:
We begin with the end in mind, and we challenge everything. We take time to understand the project we want to deliver. We understand the owner's vie ws, use of building, the owner's operation and maintenance capabilities. We look at first cost v. operation cost v. life cycle cost. Every iENG project has a best value and best design---and that's what we deliver.

An IMI Company, iENG serves nationwide Fortune 500 clients across the Institutional, Commercial and Industrial markets---there isn't a project our team cannot tackle.

iENG Design is headquartered in Chesterfield, MO and ha s branch offices in Granite City, IL, Nashville, TN and Charlotte, NC. Services & Capabilities include:
Engineering & Design, VDC/BIM Coordination, Construction Support, Scheduling, Commissioning, Retro Commissioning and Inspection Services.
iENG currently ranks as one of the largest
engineering/design firms by revenue in the region.

We are currently looking for a Senior Structural Engineer to join our Engineering team located at our office in Chesterfield, MO or Granite City, IL
. Our ideal candidate for a Senior Structural Engineer is someone who has 5+
years of experience in a fast-paced, design/build mechanical contracting company or similar.

• Lead structural calculations and analysis for complex pipe racks, equipment skids, pipe and equipment stands, elevated platforms, and other industrial support structures
• Design and evaluate hanger systems including anchoring, guides, and specialty restraints for demanding piping and equipment configurations
• Incorporate all applicable structural loading requirements — dead loads, live loads, wind loads, seismic forces, and pipe stress analysis results — into comprehensive, code-compliant designs
• Prepare and seal structural drawings and calculations as a licensed P.E., taking technical responsibility for design deliverables
• Serve as a technical resource for the team on code interpretation, load path analysis, and complex structural details

• Perform detailed technical reviews and QC checks on calculations and drawings prepared by staff engineers, providing constructive and actionable feedback
• Support the Director in maintaining and evolving department calculation templates, design standards, and quality control procedures
• Identify inconsistencies, technical gaps, or efficiency opportunities in current workflows and bring recommendations to the Director
• Ensure all design deliverables reflect applicable codes (AISC, ASCE 7, IBC, OSHA) and department standards before issuance

• Provide day-to-day technical guidance, coaching, and informal mentorship to staff-level structural engineers
• Support junior engineers in developing their calculation and design skills through direct collaboration and review feedback
• Work closely with piping, mechanical, and process disciplines to ensure seamless structural integration across multi-discipline project teams
• Participate in constructability reviews, project coordination meetings, and interdisciplinary design reviews as the structural subject-matter expert

• Manage the structural scope on assigned projects, coordinating workload and deliverable schedules with the Director and project management teams
• Act as the primary structural point of contact for project teams on assigned work, making and communicating technical decisions with confidence
• Contribute to the department's expansion into modular plant structural design, helping to define technical approaches and set precedents for the…