Water & Wastewater Conveyance Engineer – Staff

Interagency Inc.; Washington (District of Columbia); Hybrid; USD 70,000 - 100,000; Full time

Benefits offered by this job

Bonus

Profit sharing

Medical, dental, and vision insurance

401(k) with Safe Harbor employer match

Paid Time Off: up to 20 days/year

Life insurance

Disability insurance

Flexible spending accounts

Paid holidays

Job summary

InterAgency Inc. is seeking Staff Engineers to join our water and wastewater conveyance practice in the Mid-Atlantic region. The role supports design, analysis, and field tasks across DC Water, WSSC, Fairfax, Loudoun, Arlington, and AlexRenew.

We welcome recent graduates and EITs who are process-driven and detail-oriented, with opportunities for growth in design and regulatory coordination. Hybrid presence in the DC metro region is required.

Qualifications

• Bachelor's degree in Civil Engineering, Environmental Engineering, or a closely related discipline.
• 0-4 years of relevant engineering experience.
• Coursework or demonstrated working knowledge of fluid mechanics and hydraulics.
• Familiarity with AutoCAD/Civil 3D, and Microsoft Excel for engineering calculations.
• Clear written communication and attention to detail in preparing and checking technical work.
• Willingness to perform field work at active water and wastewater facilities and construction sites.
• Valid driver's license and ability to travel to project sites throughout the DC metro region.

Responsibilities

• Support design and analysis tasks for water and wastewater conveyance projects.
• Prepare calculations and hydraulic models; document inputs and results.
• Create plans and figures in AutoCAD/Civil 3D and GIS.
• Compile project data from as-builts, GIS, CCTV, and flow monitoring.
• Draft technical memoranda, design reports, and specs.
• Perform field work including site reconnaissance and inspections.
• Support construction-phase tasks: submittal logging, RFIs, record drawings.
• Coordinate with partners, client staff, and InterAgency colleagues.
• Assist in proposals with graphics and project descriptions.
• Track hours and communicate progress to task lead.

Skills

Written communication

Field work

Hydraulics

Travel readiness

Team collaboration

Education

Bachelor's degree in Civil/Environmental Engineering

Master's degree in Civil/Environmental Engineering

FE/EIT certification

Tools

AutoCAD/Civil 3D

GIS

Microsoft Excel

Job description

InterAgency Inc. is seeking Staff Engineers to join our water and wastewater conveyance practice in the Mid-Atlantic region. The role supports design, analysis, and field tasks across DC Water, WSSC, Fairfax, Loudoun, Arlington, and AlexRenew.

We welcome recent graduates and EITs who are process-driven and detail-oriented, with opportunities for growth in design and regulatory coordination. Hybrid presence in the DC metro region is required.