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—and we’re looking for a seasoned Roadway & Drainage Design Engineer to join our team! If you're a skilled designer with a collaborative spirit and deep technical know-how in both roadway and drainage systems, we’d love to meet you! 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. We’re looking for someone with a strong foundation in roadway geometrics and stormwater infrastructure, experience with H&H modeling, and a drive to help shape projects that serve the public well. This is more than a job – it's a chance to contribute to the infrastructure that keeps communities moving. You'll be part of a tight-knit team that values good work, open communication, and a shared commitment to building better. Key Responsibilities Design and Technical Execution 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 of 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. Project Management and Coordination 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. Quality Assurance and Compliance 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. Communication and Reporting 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. Minimum Qualifications Bachelor’s degree in Civil or Environmental Engineering or a related discipline from an accredited institutionMinimum of ten (10) years of experience in relevant roadway and/or drainage designActive 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 standardsExperience hydrologic and hydraulic analyses, detention design, storm drainage design, FEMA Letters of Map Change, and Floodplain Fill Mitigation PlansStrong command of H&H modeling tools such as StormCAD, HEC-HMS, HEC-RAS or other industry-approved design toolsProficiency in CAD platforms, such as AutoCAD, MicroStation, OpenRoads DesignerDemonstrated ability to lead project tasks and coordinate across teamsExperience coordinating with roadway or civil site design teams to integrate stormwater systemsStrong technical writing, presentation, and client communication skillsAbility to communicate technical findings to internal teams or public agency staffAbility to manage multiple assignments and deliver quality work under tight deadlinesExperience with FEMA processes and submittalsExperience 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 CADValid U.S. driver’s license and authorization to work in the USFlexibility to work occasional evenings or weekends as needed to complete the project Additional Preferred Qualifications Prior experience preparing PS&E for TxDOT or other municipal infrastructure projectsExperience with municipal and urban street designExperience coordinating with public agencies and contractors/subconsultantsStrong interpersonal skills and customer service-oriented mindsetCertified Flood Plain Manager (CFP) certification a plusMaster's degree in Water Resources or related discipline a plus Why Join TJHE? At TJ Hunter Engineering, we believe that great work starts with great people—and we’re committed to supporting our team every step of the way. From flexible work arrangements and exciting, community-centered projects to robust benefits and professional development opportunities, we offer more than just a job. We offer a place to grow, contribute, and feel valued. Every team member has a stake in our shared success. So, if you're looking for a workplace that balances purpose with perks, TJHE may just be the perfect fit for you. Competitive compensationFlexibility and a positive work/life balanceChallenging and innovative projectsEmployee referral programProfessional developmentSimple IRA retirement savings plan + employer matchingPaid Time Off (PTO) and holidaysMedical, Dental, & VisionWellness incentivesAdditional voluntary benefits Apply for This Position Name First Name(required) Last Name(required) Email(required) Phone(required) Applying For(required) Message Attach Resume(required) Add a File About The Role TJ Hunter Engineering is a growing civil engineering firm with a passion for building resilient, community-driven infrastructure—and we’re looking for a seasoned Roadway & Drainage Design Engineer to join our team! If you're a skilled designer with a collaborative spirit and deep technical know-how in both roadway and drainage systems, we’d love to meet you! 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. We’re looking for someone with a strong foundation in roadway geometrics and stormwater infrastructure, experience with H&H modeling, and a drive to help shape projects that serve the public well. This is more than a job – it's a chance to contribute to the infrastructure that keeps communities moving. You'll be part of a tight-knit team that values good work, open communication, and a shared commitment to building better. Key Responsibilities Design and Technical Execution 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 of 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. Project Management and Coordination 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. Quality Assurance and Compliance 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. Communication and Reporting 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. Minimum Qualifications Bachelor’s degree in Civil or Environmental Engineering or a related discipline from an accredited institutionMinimum of ten (10) years of experience in relevant roadway and/or drainage designActive 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 standardsExperience hydrologic and hydraulic analyses, detention design, storm drainage design, FEMA Letters of Map Change, and Floodplain Fill Mitigation PlansStrong command of H&H modeling tools such as StormCAD, HEC-HMS, HEC-RAS or other industry-approved design toolsProficiency in CAD platforms, such as AutoCAD, MicroStation, OpenRoads DesignerDemonstrated ability to lead project tasks and coordinate across teamsExperience coordinating with roadway or civil site design teams to integrate stormwater systemsStrong technical writing, presentation, and client communication skillsAbility to communicate technical findings to internal teams or public agency staffAbility to manage multiple assignments and deliver quality work under tight deadlinesExperience with FEMA processes and submittalsExperience 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 CADValid U.S. driver’s license and authorization to work in the USFlexibility to work occasional evenings or weekends as needed to complete the project Additional Preferred Qualifications Prior experience preparing PS&E for TxDOT or other municipal infrastructure projectsExperience with municipal and urban street designExperience coordinating with public agencies and contractors/subconsultantsStrong interpersonal skills and customer service-oriented mindsetCertified Flood Plain Manager (CFP) certification a plusMaster's degree in Water Resources or related discipline a plus Why Join TJHE? At TJ Hunter Engineering, we believe that great work starts with great people—and we’re committed to supporting our team every step of the way. From flexible work arrangements and exciting, community-centered projects to robust benefits and professional development opportunities, we offer more than just a job. We offer a place to grow, contribute, and feel valued. Every team member has a stake in our shared success. So, if you're looking for a workplace that balances purpose with perks, TJHE may just be the perfect fit for you. Competitive compensationFlexibility and a positive work/life balanceChallenging and innovative projectsEmployee referral programProfessional developmentSimple IRA retirement savings plan + employer matchingPaid Time Off (PTO) and holidaysMedical, Dental, & VisionWellness incentivesAdditional voluntary benefits Apply for This Position Name First Name(required) Last Name(required) Email(required) Phone(required) Applying For(required) Message Attach Resume(required) Add a File TJ Hunter Engineering, Inc. is a certified DBE, MBE, and WBE consulting engineering firm serving the public and private clients across Texas and the Pacific Northwest. SERVICES Civil Site Development Construction Management Drainage Highway Design Rail & Transit Traffic Engineering Utilities COMPANY About Us Services Certifications Projects News Careers CONTACT Dallas, Texas Portland, Oregon Seattle, Washington (469) 431-0177 info@tjhunterengineering.com LinkedIn Start a Project "Designed by Skills. Built by Dreams." © 2026 TJ Hunter Engineering, Inc. All rights reserved.