Wastewater Treatment Operator (WWT Operator)

leidos· 00100 LEIDOS, INC.
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📍 Seattle, WAFull time💰 USD 51K–92K

About this role

Leidos is currently seeking a Wastewater Treatment Operator (WWT Operator) to provide full-time operation, repair and maintenance of a small-scale industrial dissolved air flotation (DAF) wastewater treatment plant.  WWT Operator is responsible for onsite DAF operations (system operation, control and performance evaluation) to ensure industrial water quality meets the process needs and that effluent complies with discharge requirements of the facility permit(s). 

Primary Responsibilities:

  • Perform O&M including operational checks, sampling and monitoring of pH, turbidity, temperature and surfactants, chemical calibration of pumps, bench top testing, equipment troubleshooting, and minor maintenance of mechanical components in accordance with equipment O&M Manuals. 
  • Schedule and oversee subcontractors conducting electrical and plumbing repairs of the system.
  • Document compliance with project sampling procedures, including specific sample collection methods and documentation, complete daily logs and system documentation, and assist in data interpretation.
  • May support sampling of groundwater, collecting water level data, and storm water sampling during precipitation events.
  • Comply with Leidos site specific Health & Safety Plan.
  • Communicate directly with the site facility engineer as well as the Leidos Project Engineer located in Oakland, CA.

Required Skills and Qualifications:

  • High school diploma or equivalent and at least 2 years' relevant experience treating industrial wastewater, to include: wastewater treatment plant operation, system monitoring, sampling, and operations/maintenance.
  • Current 40-Hour HAZWOPER certification with valid 8-Hour refresher training.
  • Demonstrated experience in delivering field work in a safe manner.
  • Ability to work independently to schedule and complete routine field duties.
  • Good organizational and project documentation skills.
  • Good communications skills and ability to proactively interact with client and Leidos team.
  • Valid driver’s license.
  • Willingness to work during night/weekend/extended hours occasionally as necessitated by site needs.

Preferred Skills:

  • Knowledge of DAF wastewater treatment systems with a Certified Level II wastewater treatment operator.
  • Certified Wastewater Treatment Operator for Washington State, or in the process of becoming certified.
  • Forklift certification or the ability to obtain qualification/certification.

Physical Requirements:

  • Ability to wear required personal protective equipment (PPE), including hard hats, safety glasses, steel-toed boots, gloves, hearing protection, respirators, and chemical-resistant clothing as required.
  • Ability to enter confined spaces and perform confined space work in accordance with applicable regulations and training requirements.
  • Ability to lift, carry, push, and pull equipment, tools, hoses, pumps, and sample containers weighing up to 70 pounds, with or without reasonable accommodation.
  • Ability to perform field and plant operations activities requiring manual dexterity and the use of hand and power tools.
  • Ability to work at elevated heights and safely climb ladders, platforms, and catwalks.
  • Ability to distinguish colors, read gauges and instrumentation, and observe operating conditions for process monitoring and troubleshooting.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

August 19, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $50,700.00 - $91,650.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Frequently Asked Questions

What is the salary for the Wastewater Treatment Operator (WWT Operator) role at leidos?
The listed salary for this Wastewater Treatment Operator (WWT Operator) position at leidos is USD 51K–92K. This is an Full time role.
Where is the Wastewater Treatment Operator (WWT Operator) position at leidos located?
This Wastewater Treatment Operator (WWT Operator) role at leidos is based in Seattle, WA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Wastewater Treatment Operator (WWT Operator) role at leidos full-time or part-time?
This is listed as a Full time position. It is posted as a Wastewater Treatment Operator (WWT Operator) role in the 00100 LEIDOS, INC. department at leidos.
Which team or department does the Wastewater Treatment Operator (WWT Operator) at leidos belong to?
This Wastewater Treatment Operator (WWT Operator) position is part of the 00100 LEIDOS, INC. department at leidos. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Wastewater Treatment Operator (WWT Operator) position at leidos?
Click the "Apply Now" button on this page. You will be redirected to leidos's official application portal hosted on workday where you can submit your application directly.
When was the Wastewater Treatment Operator (WWT Operator) job at leidos posted?
This Wastewater Treatment Operator (WWT Operator) position at leidos was posted on Aug 19, 2026. Apply as soon as possible — early applications are often reviewed first.
Wastewater Treatment Operator (WWT Operator)
leidos · 💰 USD 51K–92K
Apply for this role ↗

You'll be redirected to leidos's official application page on Workday.