Roadway & Drainage Design Engineer

About the role

TJ Hunter Engineering is a growing civil engineering firm with a passion for building resilient, community-driven infrastructure. We’re looking for a seasoned Roadway & Drainage Design Engineer to join our team. In this role, you’ll take the lead on the design and delivery of complex transportation, TxDOT, Municipal, and Land Development projects—from early-stage planning through final deliverables. You’ll be part of a tight-knit team that values good work, open communication, and a shared commitment to building better.

Responsibilities

• Lead or support the design and production of roadway and drainage plans for transportation infrastructure projects.
• Prepare roadway alignments, profiles, cross-sections, and construction details in compliance with TxDOT or municipal standards.
• Perform hydrologic and hydraulic (H&H) analyses for stormwater systems, channels, cross-drainage structures (bridges and culverts), and detention ponds.
• Develop drainage area maps, perform runoff calculations, and size storm drains accordingly.
• Prepare technical reports, including drainage studies, design memoranda, and full PS&E (Plans, Specifications, and Estimates) packages.
• Conduct site visits to support data collection, assess constructability, and validate design assumptions.
• Coordinate with multidisciplinary teams and relevant public agencies to ensure design integration, regulatory compliance, and constructability.
• Support proposal development by contributing to project scoping, budgeting, and scheduling.
• Assist in quantity take-offs, cost estimating, and specification development.
• Participate in client meetings, field reviews, and construction support tasks as needed.
• Review and respond to internal and external feedback on design submittals.
• Support permitting efforts and ensure preparation of compliance documentation in alignment with project requirements.
• Provide technical quality control to ensure deliverables meet standards, requirements, and client expectations.
• Contribute to the creation of clear, concise project reports and presentations for clients and stakeholders.
• Serve as a technical resource during project meetings, providing guidance and insights across phases of delivery.
• Mentor junior staff and support their development through project engagement and knowledge sharing.
• Provide leadership in technical review and ensure consistency in design quality and documentation.

Requirements

• Bachelor’s degree in Civil or Environmental Engineering or a related discipline from an accredited institution.
• Minimum of ten (10) years of experience in relevant roadway and/or drainage design.
• Active Professional Engineer (PE) license in the state of Texas (or ability to obtain one within 6 months).
• Extensive knowledge of TxDOT design criteria, manuals, and plan preparation standards.
• Experience with hydrologic and hydraulic analyses, detention design, storm drainage design, FEMA Letters of Map Change, and Floodplain Fill Mitigation Plans.
• Strong command of H&H modeling tools such as StormCAD, HEC-HMS, HEC-RAS, or other industry-approved design tools.
• Proficiency in CAD platforms, such as AutoCAD, MicroStation, OpenRoads Designer.
• Demonstrated ability to lead project tasks and coordinate across teams.
• Experience coordinating with roadway or civil site design teams to integrate stormwater systems.
• Strong technical writing, presentation, and client communication skills.
• Ability to communicate technical findings to internal teams or public agency staff.
• Ability to manage multiple assignments and deliver quality work under tight deadlines.
• Experience with FEMA processes and submittals.
• Experience in commonly used hydrologic and hydraulics software such as HEC-RAS (steady, unsteady, and/or 2D), HEC-HMS, InfoWorks ICM, XPSWMM, ICPR4 (Stormwise), etc.
• Working knowledge of GIS and CAD.
• Valid U.S. driver’s license and authorization to work in the US.
• Flexibility to work occasional evenings or weekends as needed to complete the project.

Preferred Qualifications

• Prior experience preparing PS&E for TxDOT or other municipal infrastructure projects.
• Experience with municipal and urban street design.
• Experience coordinating with public agencies and contractors/subconsultants.
• Strong interpersonal skills and customer service-oriented mindset.
• Certified Flood Plain Manager (CFP) certification a plus.
• Master's degree in Water Resources or related discipline a plus.

Benefits

• Competitive compensation.
• Flexibility and a positive work/life balance.
• Challenging and innovative projects.
• Employee referral program.
• Professional development.
• Simple IRA retirement savings plan + employer matching.
• Paid Time Off (PTO) and holidays.
• Medical, Dental, & Vision.
• Wellness incentives.
• Additional voluntary benefits.