GIS Specialist

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GIS Specialist

McMillen Inc. is looking for a GIS Specialist with 10+ years of professional experience to lead geospatial workflows for hydropower, watershed, and environmental projects. This position offers the opportunity to apply advanced GIS and data management skills across disciplines including hydrology, geomorphology, and ecology. The successful candidate will oversee spatial data integration, analysis, and visualization to support complex modeling, regulatory, and design projects. This role requires a balance of technical expertise, project management ability, and a passion for transforming geospatial data into actionable insights that inform sustainable water-resource and infrastructure solutions.

Responsibilities :

• Lead GIS workflows supporting hydropower relicensing, dam removal, watershed modeling, hydraulic analysis, and environmental compliance projects.
• Manage, process, and QA / QC large spatial datasets (LiDAR, topobathymetric surveys, DEMs, orthophotos, UAV-SfM) for use across engineering, geomorphic, and ecological disciplines.
• Build geodatabases and automated geoprocessing workflows (ModelBuilder, Python, SQL) to ensure efficient, reproducible analyses and defensible regulatory documentation (FERC, NEPA / CEQA, ESA).
• Conduct hydrologic and terrain analyses—watershed delineation, change detection, floodplain mapping, sediment characterization, and habitat suitability modeling.
• Prepare and translate inputs and outputs for 1D / 2D hydraulic, sediment transport, and habitat models, ensuring spatial consistency and model-ready datasets.
• Develop basemaps, dashboards, and story maps to communicate modeling results and monitoring data to clients, regulators, tribes, and the public.
• Produce high-quality cartographic and visualization products for technical reports, permitting, and stakeholder engagement.
• Maintain metadata, QA / QC, and data management standards to support transparency, repeatability, and defensible technical deliverables.
• Collaborate closely with engineers, geomorphologists, hydrologists, and biologists to integrate GIS analyses into design, modeling, and decision-making.
• Mentor junior staff in geospatial methods, database management, and quality assurance practices.
• Serve as GIS lead in proposal development, project planning, and data-management strategy for multi-disciplinary teams.

Qualifications :

Compensation Package :

Company Bio : McMillen, Inc. designs and builds solutions that shape the future of water resources. As an employee-owned firm, we take pride in every project because we know our work truly matters. Our people thrive on solving complex challenges, pushing boundaries, and refining their craft. We don’t look for the complacent or the comfortable. We seek problem solvers, innovators, and experts who are always striving to be better. We support continuous learning, cutting-edge technology, and a balanced work-life environment so our employees can build careers they’re proud of.

We are focused in the dams, energy, fisheries, natural resources, and infrastructure markets. With staff across the United States, Canada, Europe, and beyond, we bring global best practices to our clients. Our people integrate engineering, environmental, and construction expertise to deliver practical, results-driven outcomes. From concept to completion, projects are guided through feasibility studies, permitting, design, construction, and commissioning, ensuring technical precision and real-world functionality.

EEO : McMillen, Inc. is an EEO / Affirmative Action Employer and will make all employment related decisions without race, color, religion, sex, national origin, disability or protected veteran status.

Visa sponsorship, including renewal during employment, will not be provided for this position.

No recruiters, please.