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Part Time Septic Design Engineer Jobs in Seattle, WA

This is an on-site position that offers flexibility to work from home part-time dependent on ... Engineering Design: Incorporate lessons learned into engineering processes and design guidelines ...

This is an on-site position that offers flexibility to work from home part-time dependent on ... Engineering Design: Incorporate lessons learned into engineering processes and design guidelines ...

Office Assistant

Seattle, WA · On-site

$20.28 - $30.24/hr

Overview MG2, an affiliate of Colliers Engineering & Design is seeking a Temporary Part-Time Office Assistant to work in our Seattle, WA office. The Office Assistant supports daily administrative ...

This is an on-site position that offers flexibility to work from home part-time dependent on ... Engineering Design: Incorporate lessons learned into engineering processes and design guidelines ...

The Navy will rely on your sharp math and science skills to design, develop and deploy the world ... PART-TIME OPPORTUNITIES There are part-time roles as an Engineering Duty Officer in the Navy.

The Navy will rely on your sharp math and science skills to design, develop and deploy the world ... PART-TIME OPPORTUNITIES There are part-time roles as an Engineering Duty Officer in the Navy.

The Navy will rely on your sharp math and science skills to design, develop and deploy the world ... PART-TIME OPPORTUNITIES There are part-time roles as an Engineering Duty Officer in the Navy.

Showing results 41-60

Part Time Septic Design Engineer information

See Seattle, WA salary details

$46.1K

$126.9K

$187.2K

How much do part time septic design engineer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for part time septic design engineer in Seattle, WA is $126,890.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,600.00 and $158,200.00 per year, depending on experience, location, and employer.

What is the difference between Part Time Septic Design Engineer vs Part Time Civil Engineer?

AspectPart Time Septic Design EngineerPart Time Civil Engineer
CertificationsSeptic system design certifications, environmental permitsEngineering licenses, civil engineering certifications
Work EnvironmentOn-site septic system planning, environmental sitesConstruction sites, urban planning projects
Industry UsageEnvironmental, residential, and commercial septic systemsInfrastructure, transportation, urban development

Part Time Septic Design Engineers focus on designing septic systems, requiring environmental and design certifications, often working on-site or in offices. Part Time Civil Engineers have a broader scope, including infrastructure projects, requiring civil engineering licenses. Both roles are essential in construction and environmental projects but differ in specialization and project types.

What are the most commonly searched types of Septic Design Engineer jobs in Seattle, WA?

The most popular types of Septic Design Engineer jobs in Seattle, WA are:

Geotechnical or Civil Engineer (Senior-Level) - Underground Services

Shannon & Wilson Inc

Seattle, WA • On-site

$145K - $200K/yr

Full-time, Part-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 3 days ago


Job description

Description:

Shannon & Wilson is an employee-owned consulting firm headquartered in Seattle, Washington. Committed to technical excellence and high-quality service, we provide integrated geotechnical and civil engineering, engineering geology, environmental science and natural resource services for clients. Since 1954, we have delivered comprehensive engineering and environmental solutions for some of the most challenging infrastructure planning, design, permitting and construction conditions.

We are dedicated to improving our communities, preserving the environment and utilizing innovative solutions and high-end practices in our work.


Job Summary

This role will further develop our underground services capabilities and work closely with our Director of Underground Services, Practice Directors, and Office Managers to understand our overall capabilities and needs. This role is responsible for the marketing, planning, design, coordination, and oversight of underground infrastructure systems, including roadways, railroads, water, wastewater, stormwater, utilities, and associated civil works.


Responsibilities:

  • Guide the direction of the underground practice area and provide high-end services to our clients, upholding best practices, and reducing exposure to claims.
  • Design and organize the underground services resources, including large scale tunnel/underground opening projects, conventional transportation/transit tunnels, large diameter pipeline tunnels, and the small diameter trenchless pipeline market.
  • Prepare engineering drawings, technical specifications, calculations, and cost estimates.
  • Review engineering reports and coordinate designs with subsurface conditions.
  • Ensure compliance with local, state, and federal regulations and standards.
  • Participate in project meetings and design reviews.
  • Assist in resolving construction issues related to underground systems.
  • Interact and communicate with clients, owners, and staff at all levels.
  • Lead, mentor, oversee, and/or supervise engineers and other employees.
  • Support business development and marketing activities, including preparation of cost proposals and presentations to existing and prospective clients.
  • Be a resource for technical advice/guidance to colleagues across the Company.
  • Follow Shannon & Wilson’s Quality Assurance policy.
  • Follow and promote Shannon and Wilson’s Health and Safety and Loss Prevention policies.
  • Perform other duties as assigned by your supervisor.
Requirements:
  • BS Degree in Civil Engineering or related discipline required and MS or PhD Degree in Geotechnical, Geological or Civil Engineering strongly preferred.
  • 14 - 20+ years of experience as a Geotechnical or Civil Engineer.
  • Working knowledge of underground design standards and practices.
  • Professional Engineer (PE) License in the state office is located.
  • Knowledge of trenching, shoring, and underground construction methods.
  • Ability to read and interpret plans, profiles, surveys, and geotechnical data.
  • Experience in structural design, cost estimating, scheduling, SEM/NATM, and CM.
  • Ability to manage multiple clients, contracts, and projects at the same time.
  • Mentoring and supervisory experience preferred.
  • Excellent writing, organizational, and communication skills to effectively interact with clients, vendors, and staff at all levels.
  • Personable, flexible, and professional behavior.
  • Willing and able to travel to meet the needs of other Shannon & Wilson offices, projects and events.
  • Having and maintaining a valid driver license and insurable driving record.
  • Basic computer skills: MS Word, Excel, required; MS Access, desirable.
  • Critical thinking and analysis; frequent sitting, standing, walking, bending, and lifting and carrying 30+ pounds; working in all weather conditions, on uneven terrain; and field visits per project needs.

Level Placement

Depending on an applicant’s education, experience, and other qualifications, a Senior to Principal-Level Geotechnical or Civil Engineer typically would be placed at a Shannon & Wilson Associate level up to Vice President level with an annual salary range of $145,000 to $200,000.


Shannon & Wilson is committed to providing a comprehensive total rewards package that includes the following benefits:

  • Employee stock ownership
  • Medical, prescription, vision, dental, long-term care and life insurance plans are offered to employees (and their families).
  • Pre-tax health and daycare FSA
  • Profit sharing and 401(k) plans with annual safe-harbor contributions
  • 10 - 20 paid vacation days per year for full-time employees (prorated for part-time employment) based on years of experience
  • Paid Sick and Safe Leave accrues based on your state requirements
  • 9 paid holidays per year + 1 personal holiday
  • Paid volunteer day
  • Paid time off for bereavement and jury duty
  • Two weeks of paid parental leave
  • Lunch & Live wellness webinars and an Employee Assistance Program
  • Mentorship Program
  • Tuition Reimbursement
  • Free parking


Shannon & Wilson is an Equal Opportunity Employer

Shannon & Wilson participates in the E-Verify program.

Please note that non-solicited resumes from external recruitment agencies will not be considered as introductions to our business, unless a preapproved agreement is in place and the external recruitment agency has been engaged to work on this specific vacancy.