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Professional Engineer - Senior Drainage Engineer / Project Manager
The Mannik & Smith Group, Inc.
Operations
USD 105k-150k / year
Posted on Mar 11, 2026
Unmatched Comp Time Policy: Hours worked over 40 in a week can be reimbursed as additional pay at an equivalent hourly rate or banked as additional PTO.
At Horrocks, we believe the best work comes from companies with values, that our people are our greatest resource, and that we have a responsibility to the communities where we live and work. As a Drainage Engineer / Project Manager, you will be involved in projects with our Drainage Transportation Team and be part of a growing company focused on meeting our clients’ needs, while also solving their problems. The ideal candidate is extremely detail oriented.
- Department
- Transportation
- Employment Type
- Full Time
- Location
- Phoenix, AZ
- Workplace type
- Onsite
- Compensation
- $105,000 - $150,000 / year
- Reporting To
- James Monroe
What are the core responsibilities for the role?
- Managing and designing local flood control projects and performing engineering tasks, including regional flood control facility design, roadway drainage design, utilities coordination, hydrologic and hydraulic analyses, technical drainage report preparation, and quality assurance/quality control (QA/QC) review of various construction documents.
- Prepare clear and accurate studies, technical reports, construction plans, specifications, and cost estimates for a wide variety of transportation projects.
- Interface with clients, including federal, state, and local agencies.
- Ensure project compliance with AASHTO, FHWA, NEPA, USACE, DOT's, and local municipalities’ stormwater management guidelines and QA/QC protocols.
- Support with client relations, stakeholder management, and sub-consultant coordination.
- Coordinate and conduct meetings with project stakeholders.
- Coordinate with office management and project managers to share resources
- Assist in proposal preparation, including oral presentations
- Coordinate and work within a team of project managers, design engineers, technicians, and support staff to successfully complete a variety of projects.
- Provide project oversight and schedule monitoring.
- Prepare scope and fee proposals, prepare oral presentations, track and manage project budgets and invoicing, prepare project schedules, and develop project work plans.
- Maintain strong client relationships with public agencies and local municipalities.
- Provide strategic technical leadership on drainage and stormwater design.
- Take ownership of projects from start to finish and deliver innovative, resilient, cost-effective solutions
Qualifications, Skills, and Competencies:
- Bachelor’s degree in civil engineering from an accredited college or university.
- Professional Engineering (PE) licensure
- 5 – 15+ years of professional hydraulics design experience, including:
- Design of roadway drainage and flood control facilities
- Design of erosion control and water control facilities
- Experience and relationships with transportation and flood control agencies are highly preferred.
- Knowledge and experience with Bentley ProjectWise, MicroStation, OpenRoads Designer, AutoCAD Civil 3D, HEC-1, HEC-HMS, Power InRoads SS2, HEC-RAS, HY-8, FlowMaster, StormCAD, CulvertMaster, and other applicable software common to the field of drainage engineering.
- Familiar with DOT’s Standard Plans and Specifications for Road and Bridge Construction and experience with the procedures outlined in DOT's Plan Preparation Guide and Drainage Manual.
- Experience and understanding of local, regional, state, and federal plans preparation procedures, standards, guidelines, and design criteria.
- Excellent written and oral communication skills.
- Outstanding interpersonal and customer service skills.
- Self-motivated with solid organizational skills and attention to detail.
- Ability to interact with and work cooperatively with clients and multi-disciplinary team members.
- Ability to multitask while working on many projects at once.
- Willingness to work on projects locally or in workshare with other offices.
- Possess a proven history of meeting project deadlines and budgets.
- Experience in managing technical staff and project teams.
- A desire to grow personally and professionally with each project while working in a team environment to create designs and drawings supporting our client's overall project goal
Why would a candidate want this job?
At Horrocks, you can expect a competitive base salary and award-winning benefits. Including, but not limited to:
- Medical, dental, vision, life, and disability insurance
- Generous paid time off
- 401(k): 50% match of contribution up to 6%
- Professional development opportunities including in-house training
- Paid professional organization membership and professional licensure
For more information, visit our website at www.horrocks.com
Equal Opportunity Employer including disability and protected veteran status
#LI-JP2
Equal Opportunity Employer including disability and protected veteran status
#LI-JP2
About Horrocks
Founded over 55 years ago, Horrocks has a long-standing history of delivering exceptional infrastructure solutions. At the heart of our company is a commitment to providing essential resources for communities and improving quality of life through innovative and forward-thinking engineering practices. Our teams of dedicated professionals deliver high-quality results on every project and are driven by a culture of service. With our slogan "What we do matters," we strive to make a meaningful difference in the world through our work. Our approach is holistic, taking into consideration all aspects of a project to ensure it meets the needs of the present while preparing for the future. We invest in our people and culture, recognizing that our success is dependent on the talents and dedication of our team. At our firm, we don't just build infrastructure — we build better communities.
Our Hiring Process
Stage 1:
Applied
Stage 2:
Initial Screening
Stage 3:
1st Interview
Stage 4:
Offer
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