Onsite Data Center Hydrology & Hydraulics Engineer

Giga Energy; United States; Remote; USD 100,000 - 165,000; Full time

Job summary

Giga Energy seeks a Civil Engineer specializing in hydrology and hydraulics to guide stormwater management and floodplain analysis for data center and energy projects. You will combine hands-on modeling and drainage design with broader site development work, helping the team evaluate sites, resolve constraints, prepare construction documents, and support projects through permitting and construction.

You will work closely with civil engineers, project development teams, construction managers, and

Qualifications

• Bachelor’s degree in Civil Engineering or Water Resources Engineering from an ABET-accredited program.
• 5+ years civil eng experience, incl. 3+ years in hydrology, hydraulics, drainage or floodplain analysis.
• Proficiency in HEC-RAS/HEC-HMS and culvert/storm sewer analysis tools (HY-8, StormCAD, etc.).
• Proficiency in AutoCAD Civil 3D for grading, drainage layouts, profiles, and construction plan production.
• Experience designing detention and conveyance systems and preparing drainage reports for agency review.
• Working knowledge of FEMA floodplain information and NOAA Atlas 14 rainfall data, and standard hydrologic methods.
• Ability to manage multiple project priorities, explain technical tradeoffs clearly, and coordinate with teams.

Responsibilities

• Evaluate prospective sites using survey, terrain, watershed, and floodplain information; identify drainage constraints and their implications for development cost, schedule, and usable area.
• Develop and review hydrology and hydraulic models using HEC-HMS, HEC-RAS, and other appropriate tools, including 1D and 2D analysis where warranted.
• Design stormwater conveyance and detention systems, including storm sewers, channels, swales, culverts, outlet structures, and erosion protection.
• Develop erosion and sediment control plans and support SWPPP preparation and compliance under state construction stormwater general permits.
• Assess runoff, downstream impacts, tailwater conditions, and flood risk to buildings, electrical equipment, substations, and site access.
• Recommend project flood-protection criteria for critical facilities—design storm, freeboard, elevations per ASCE 24, insurer and utility standards.
• Integrate drainage design with grading, building pads, retaining walls, utilities, and access roads; evaluate cost-effective alternatives.
• Prepare drainage reports, calculations, exhibits, specifications, and Civil 3D plan sheets for permitting and construction.
• Prepare or review analyses supporting no-rise certifications and floodplain development applications; coordinate with engineers and FEMA submittals.
• Coordinate with permitting agencies, surveyors, geotechnical engineers, and environmental consultants on drainage interfaces.
• Review consultant deliverables, resolve agency comments, and support construction through RFIs and field observations.
• Verify as-built detention and drainage facilities and prepare long-term operation and maintenance plans.
• Maintain organized models and design assumptions, and establish consistent drainage workflows across projects.

Skills

Hydrology

Hydraulics

Drainage design

HEC-RAS/HEC-HMS

AutoCAD Civil 3D

Floodplain analysis

Stakeholder coordination

Communication

Education

Bachelor’s degree in Civil Engineering or Water Resources Engineering

ABET-accredited program

Tools

HY-8

StormCAD

ArcGIS

HEC-RAS

Job description

Giga Energy seeks a Civil Engineer specializing in hydrology and hydraulics to guide stormwater management and floodplain analysis for data center and energy projects. You will combine hands-on modeling and drainage design with broader site development work, helping the team evaluate sites, resolve constraints, prepare construction documents, and support projects through permitting and construction.

You will work closely with civil engineers, project development teams, construction managers, and