Inside Sales Representative

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Full Time Earth City, MO, US

7 days ago Requisition

Salary Range: $23.00 To $25.00 Hourly

FLSA Status: Non-Exempt
Reports To: Product Manager & Vice President
Division: Porta-King Building Systems (Jay Henges Enterprises)
Location: Earth City, MO
Prepared By: Human Resources | February 2, 2026

Porta-King Building Systems, a division of Jay Henges Enterprises, is a leading custom manufacturer of prefabricated buildings, modular offices, structural steel mezzanines, and towers. We proudly serve the construction, industrial, security, and specialty markets nationwide.

As a fourth-generation, family-owned company with roots in St. Louis dating back to 1932, we combine long-standing craftsmanship with modern innovation. Our culture is collaborative, upbeat, and people-focused—we value employee retention, long-term careers, and taking pride in every project we deliver. Learn more about our products at

The Inside Sales Representative plays a key role in delivering an exceptional customer experience from initial inquiry through project completion. This position partners closely with customers, outside sales, engineering, purchasing, and production teams to generate custom solutions, prepare proposals, and process orders efficiently.

This is a relationship-driven role focused on responsiveness, accuracy, and teamwork—no cold calling required.

• Respond to customer inquiries promptly and professionally via phone and email
• Support existing customers and assist prospective customers with product information and solutions
• Collaborate with outside sales representatives, CAD engineers, purchasing, and production teams
• Prepare and generate accurate custom product quotes and proposals
• Process and manage custom product orders from entry through completion
• Maintain clear communication with customers throughout the sales and production process
• Provide outstanding customer service before, during, and after the sale
• Ensure accuracy and attention to detail in all documentation and communications

We’re seeking a motivated, customer-focused professional who enjoys working in a fast-paced, team-oriented environment. The ideal candidate is organized, adaptable, and capable of managing multiple priorities while maintaining a high level of service.

Key attributes include:

• Strong written and verbal communication skills
• Professional, friendly, and solution-oriented customer approach
• Ability to work independently while collaborating effectively with cross-functional teams
• Strong attention to detail and follow-through
• Willingness to learn technical products and custom solutions

• High school diploma or equivalent required; additional education a plus
• Prior experience in inside sales, customer service, or a related role preferred but not required
• Experience in construction, manufacturing, or industrial environments is a plus but not mandatory

This position does not have supervisory responsibilities.

This role is performed in an office environment with a moderate noise level. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

• Regularly required to sit, communicate verbally, and use hands for computer and phone tasks
• Occasionally required to stand, walk, and reach with hands and arms
• Reasonable accommodations may be made for qualified individuals with disabilities

Porta-King offers a competitive benefits package designed to support our employees’ well-being and success, including:

• $23-$25/hr
• Medical, Dental, and Vision Insurance
• Flexible Spending Account (FSA)
• Generous company-matched 401(k)
• Paid vacation and paid holidays
• Life and disability insurance
• Fun, collaborative office environment

Porta-King Building Systems is an equal opportunity employer and values diversity in the workplace.