Senior Drainage Engineer (Transportation Infrastructure)

Location: Hybrid role based in California, Oregon, or Washington, with offices in Los Angeles, Irvine, San Francisco, Rancho Cucamonga, Portland, or Bellevue.

Salary: $160,647.46–$183,597.09 per year

Company

hirify.global is a nationally recognized engineering and infrastructure firm delivering transportation projects for public-sector agencies and communities.

What you will do

• Lead drainage engineering design for roadway, rail, bridge, and highway improvement projects.
• Design stormwater management systems, drainage systems, culverts, hydraulic structures, BMPs, LID features, and erosion and sediment control plans.
• Perform and review hydrology and hydraulic analyses to support design decisions, regulatory compliance, and resilient project delivery.
• Manage stormwater permitting, erosion and sediment control approvals, and environmental regulatory coordination.
• Prepare and review drainage reports, technical documentation, specifications, calculations, plans, and engineer’s cost estimates.
• Coordinate multidisciplinary design, support client and agency interactions, provide QA/QC leadership, and mentor early-career engineers.

Requirements

• Bachelor’s degree in Civil Engineering, Environmental Engineering, or a related field.
• 13–18 years of progressive experience in drainage design, preferably on transportation infrastructure projects.
• Professional Engineer license in Washington, Oregon, or California, or the ability to obtain one within six months of hire.
• Expertise in hydrology and hydraulic analysis using tools such as HEC-RAS, Hydrocalc, XPSWMM, StormCAD, WSPG, WNT-55, LAR04, or ORD Storm Module.
• Experience with stormwater management, drainage and culvert design, erosion and sediment control, permitting, and regulatory coordination.
• Experience with MicroStation, AutoCAD Civil 3D, OpenRoads Designer, and ArcGIS, plus strong technical writing and communication skills.

Culture & Benefits

• Collaborative, multidisciplinary engineering environment.
• Professional development and leadership growth opportunities.
• Health, dental, and vision insurance, with health savings and flexible spending account options.
• 401(k) plan, retirement counseling, disability and life insurance, and employee assistance program.
• Paid time off starting at 16 days, nine paid holidays, parental leave, and backup dependent care.
• Continuing education and professional licensure or society membership support.