Septic System Designer
Tidy Tank Plumbing, Sewer & Septic
Location: Crystal Lake, IL (Serving Northern Illinois)
Schedule: Full-Time | Monday–Friday
Compensation: $80,000+ (based on experience)

Benefits

100% Company-Paid Healthcare (Employee + Family)
4% 401(k) Match
PTO & Paid Holidays – Available Immediately
Flexible Schedule
Company Vehicle (if needed)
Tools & Software Provided
Stable, Growing Company

The Role

We’re hiring an experienced Septic System Designer to support our growing installation division.This role is for someone who understands Illinois onsite wastewater regulations and can take a project from:Soil evaluationSystem designDrawings & documentationPermitting supportFrom start to finish.You will work closely with operations, installers, and local health departments to design systems that are code-compliant, practical to install, and built to last.

Responsibilities

Conduct or coordinate soil evaluations and site assessments
Design septic systems in compliance with Illinois code
Size systems based on bedrooms, GPD, and site conditions
Design conventional, chamber, and ATU-based systems
Create layout drawings for permitting and installation
Prepare documentation for health department approvals
Coordinate with county inspectors and regulators
Provide technical support to installation teams
Assist in troubleshooting design challenges in the field

Requirements

5+ years designing septic systems in Illinois
Deep understanding of Illinois onsite wastewater code
Experience with:
Soil testing / site evaluation
System sizing
Layout & design drawings
Permitting process
Familiarity with:
Gravity systems
Pressure systems
ATUs
Chamber vs gravel systems
Ability to design systems that are both code-compliant and buildable
Strong attention to detail
Ability to work independently

Preferred

Licensed Soil Classifier or equivalent experience
Experience working directly with county health departments
Familiarity with CAD or septic design software

About Tidy Tank

Tidy Tank is part of Great Lakes Wastewater — a fast-growing, family-owned business of 50+ incredible people. While many competitors have become corporate or PE-owned, we’re building something different:

Family-owned, and people first
Professional, reliable, and high integrity
Customer-first in every interaction
Invests in training, leadership development, and certifications
Supports your goals and respects you as a person

Here, your leadership will directly impact our team, our customers, and the future of our plumbing division.

Watch this video to learn more about what it’s like to work here and be a part of our team: https://youtu.be/B9a9s__H-nI?si=Ba_W3YCR1j5rfVUf

Let’s Talk.

If you’re ready to build something, be part of a results-driven team, and be valued for your expertise — reach out. Even if you’re not actively looking, we’d love to have a conversation.

Equal Opportunity Statement

GLW is proud to be an equal opportunity employer. We do not discriminate in hiring or employment on the basis of race, color, religion, sex, national origin, age, disability, veteran status, or any other protected class.

Pay: From $80,000.00 per year

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
Paid time off
Vision insurance

Work Location: In person

A & J Sewer Service / Tidy Tank Plumbing, Sewer, and Septic jobs

Septic System Designer

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