Project Civil​/Environmental Engineer

Tetra Tech is seeking a highly motivated Project Civil/Environmental Engineer to support project delivery from our Longmont, CO, office. This position will serve as the lead Project Engineer on a diverse portfolio of civil, water, and environmental infrastructure projects supporting the mining, oil and natural gas, commercial development, and industrial sectors.

The successful candidate will be responsible for managing and contributing to projects throughout their full life cycle, including planning, design, permitting, construction support, and closeout. Key responsibilities will include preparing engineering designs; grading, utility, and drainage plans; hydrologic and hydraulic analyses; drainage and stormwater reports; technical memoranda; construction documents; cost estimates; specifications; permit applications; and other project deliverables.

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development.

Our work has improved more than 625 million lives around the world.

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

Prepare engineering designs, calculations, reports and technical memoranda, construction drawings, design criteria, and specifications using applicable industry standards and regulatory requirements. Work may include site grading, utilities, roadways, erosion and sediment control, stormwater management, and water resources infrastructure.

Develop drainage studies and stormwater management plans, including watershed delineation, hydrologic and hydraulic analyses, stormwater quality evaluations, floodplain considerations, and drainage impact assessments.

Utilize software such as AutoCAD Civil 3D, HEC-HMS, HEC-RAS, and GIS platforms such as ArcGIS Pro as appropriate.

Evaluate, size, and design stormwater conveyance and detention facilities, including storm drains, culverts, channels, swales, inlets, outlet structures, detention and retention ponds, infiltration facilities, water quality features, and related appurtenances.

Prepare stormwater management plans, permit applications, technical specifications, bid documents, opinions of probable construction cost, quantity takeoffs, schedules, and other contract documents.

Other duties as assigned.

Bachelor of Science degree in Civil Engineering, Environmental Engineering, or a closely related discipline.

8 - 13 years of progressively responsible engineering experience, including demonstrated experience managing civil, environmental, water resources, or infrastructure projects.

Professional Engineer (P.E.) Registration is required.

Experience with Microsoft Office and engineering software is required, with working knowledge or collaboration with computer-aided design (CAD).

Strong written, verbal, organizational, and interpersonal communication skills are required, with the ability to prepare clear technical documents, present engineering recommendations, coordinate with multidisciplinary teams, and communicate effectively with clients and contractors.

Ability to travel and perform field work/oversight (approx. 15% of travel required).

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