Staff Engineer - Water & Wastewater Conveyance

InterAgency • Washington, DC

1d • $70,000 - $100,000 • Hybrid

About The Position

InterAgency Inc. is a dynamic and fast-growing water resource consultancy specializing in infrastructure planning and environmental compliance across the D.C., Maryland, and Virginia region. Over our 15-year history we have provided facility design, regulatory coordination, NEPA and Clean Water Act permitting, and program management support on multibillion-dollar deep tunnel programs, biosolids facility upgrades, coastal resilience projects, and drinking water access initiatives.

InterAgency Inc. is seeking Staff Engineers (both recent graduates and EITs) to join our growing water and wastewater conveyance practice. We are looking for highly motivated, process-driven and detail-oriented professionals to support our engineering teams on design, analysis, and field support tasks. Our current projects center on water and wastewater conveyance in the Mid-Atlantic region, with our current client base including DC Water, WSSC, Fairfax, Loudoun, Arlington and AlexRenew.

Requirements

• 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.

Nice To Haves

• Engineer in Training (EIT) certification, or Fundamentals of Engineering (FE) examination passed or scheduled.
• Master's degree in Civil Engineering, Environmental Engineering, or a related field.
• Coursework or project experience involving water or wastewater engineering.
• Exposure to GIS, InfoWorks ICM, SewerGEMS, WaterGEMS, or comparable platforms.
• Interest in pursuing professional licensure and building a career in water infrastructure.

Responsibilities

• Support design and analysis tasks for water and wastewater conveyance assignments, including hydraulic capacity evaluation, alternatives analysis, rehabilitation versus replacement strategy, pipeline and force main design, pump and lift station design, diversion and flow control structures, and trenchless and tunnel engineering support.
• Prepare engineering calculations and support hydraulic modeling under the direction of senior staff, documenting inputs, assumptions, and results.
• Produce and revise plans, details, and figures in AutoCAD/Civil 3D and GIS.
• Compile, organize, and quality-check project data, such as utility records, as-built drawings, GIS datasets, flow monitoring data, and CCTV and condition assessment records.
• Draft sections of technical memoranda, design reports, and specifications.
• Perform field work including site reconnaissance, structure and manhole inspection support, flow monitoring support, and construction observation.
• Support construction-phase services, including submittal logging and review support, RFI tracking, and record drawing preparation.
• Coordinate directly with engineering partners, client staff, and InterAgency colleagues on assigned tasks.
• Support proposal preparation, including graphics, resumes, and project description write-ups.
• Track your own hours and task status accurately and communicate progress and obstacles to your task lead.

Benefits

• Eligible for bonus
• Eligible for profit sharing
• Medical, dental, and vision insurance
• Retirement plan with 401(k) Safe Harbor employer match.
• Paid Time Off: up to 20 days per year, prorated during the first year of employment.
• Life insurance and disability insurance.
• Flexible spending accounts.
• Paid holidays and paid leave benefits.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level