Lumos & Associates, a leader in civil engineering throughout northern California, Nevada, and Idaho, is seeking an accomplished Water/Wastewater Senior Engineer to join our growing team. This is an exciting opportunity for an experienced engineer to take on a key technical leadership role within our Water/Wastewater practice. The position will work out of our Roseville, California office.

The ideal candidate brings advanced expertise in water and wastewater infrastructure design, a strong sense of ownership, and a collaborative leadership style. This individual will serve in responsible charge of projects, provide high-level technical oversight, and mentor junior staff while helping grow our technical practice.

About Us:

At Lumos & Associates, we are known for our forward-thinking approach and commitment to delivering high-quality engineering solutions that strengthen the communities we serve. We foster a collaborative environment where professionals are empowered to grow, innovate, and lead. We invest in professional development and operate under five core values: Stay Moving, Dip Down, Own It, Make It Right, and Take Pride.

About the Role:

The Water/Wastewater Senior Engineer serves as a senior technical leader responsible for the design, coordination, and oversight of complex infrastructure projects across our service territory. Project types include:

Water distribution systems
Sanitary sewer collection systems
Booster pump and lift stations
Storage facilities
Master planning and hydraulic modeling
Water and wastewater treatment facilities

This role combines advanced technical execution, team leadership, client engagement, and business development support.

The ideal candidate will possess the following qualities and skills:

Strong technical background in water and wastewater design and construction management experience, and have a demonstrated ability to serve in a responsible charge capacity for water and wastewater projects.
Strong oral and written communication skills, including the ability to present technical information in public forums, as well as interpersonal communication with team members and colleagues.
Possess a high level of creativity, organizational skills, and attention to detail, as well as a demonstrated ability to manage and oversee several tasks/projects concurrently.
Strong business acumen necessary to maintain project budgets and develop new and repeat business with existing and new clients.
Possess vision to help grow and direct the water/wastewater technical focus group in close coordination with the Lumos Group Manager, consistent with our strategic plan and goals.

Key Responsibilities:

Coordinate, oversee, and direct the project design team during the execution of projects in responsible charge.
Develop, implement, and maintain project schedules and budgets.
Provide coaching, mentoring, and delegating responsibility to staff.
Provide technical review (QA/QC) of projects.
Leads the development of engineering drawings using CAD/Civil 3D software. Designs in a manner according to established industry standards and state or federal construction policies. Conducts research as needed. This position will work in coordination with the Project Manager, but will spend a significant amount of time independently.
Prepares or guides the preparation of due diligence/site analysis reports, engineer’s opinion of probable construction costs, utility infrastructure design and computations, technical reports, and general civil design for review by a Project Manager.
Serves as the engineer in responsible charge for production of final civil design drawings/may stamp project deliverables, including plans, specifications, reports, and calculations.
Leads field visits and construction site visits, and provides assistance related to the aspects of construction assistance activities (verify quantities, field reports, process pay applications, etc.).
Prepares models or guides computer modeling for analysis of water, sewer, and stormwater systems. Prepares or guides the preparation of reports based upon modeling in coordination with the team.

Requirements

Bachelor’s degree in civil or environmental engineering.
6+ years of progressive water/wastewater design experience.
California P.E. license (or ability to obtain within 6 months).
Advanced proficiency in AutoCAD Civil 3D.
Experience supervising and mentoring staff.
Valid driver’s license and driving record with 3 or fewer demerit points.

This role offers the opportunity to lead complex projects, shape technical direction, and continue building specialized expertise within a growing and respected company.

Success in this position comes from strong technical judgment, proactive leadership, and a commitment to delivering excellence for clients and communities.

Pay Transparency StatementThe compensation range reflects the Company’s reasonable expectation at the time of posting. We consider a number of factors when making individual compensation decisions including, but not limited to, skill sets, experience and training, and other business needs.

California salary pay range: $130,000 USD - $165,000 USD

Benefits offered to eligible full-time employees include:

Competitive salary and annual bonus
Competitive Health, Dental, and Vision insurance plans
Generous company matched 401(k) plan with a Roth provision
Paid Time Off (PTO)
Eight (8) paid holidays
Life insurance (company paid)
Short and long-term disability insurance (company paid)
Flexible Spending Account and/or Health Savings Accounts
Culture that provides work-life balance, and professional development and is community driven
And much more!

Lumos & Associates

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Senior Engineer in Water/Wastewater