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Terraphase Engineering Inc. Tech Stack

Environmental remediation and compliance engineering for contaminated sites

Environmental Services Oakland, California 201–500 employees Founded 2010 Privately Held

Terraphase Engineering is a 201–500-person environmental services firm applying geotechnical, hydrogeological, and regulatory expertise to contaminated-site remediation and compliance work. The hiring profile—heavily skewed toward senior and principal engineers (18 of 24 open roles)—reflects a business model built on deep technical credibility and client-facing project delivery rather than scaling junior staff. Active projects center on groundwater assessment, wastewater compliance, and remedial investigations; pain points cluster around managing mid-to-large compliance engagements and regulatory coordination, suggesting internal strain as the compliance division grows.

Tech Stack 14 technologies

Core StackArcGIS AutoCAD Word Excel MODFLOW HEC-RAS SWMM FLO-2D Adobe Acrobat Pro Adobe Microsoft Office Adobe Acrobat CAD GIS

What Terraphase Engineering Inc. Is Building

◆Challenges

Complex environmental engineering challenges
Supporting growing compliance services division
Managing mid to large scale compliance projects
Resolving regulatory challenges in industrial projects
Expanding compliance practice
Expand reach and capabilities
Complex contaminated properties
Contaminated site remediation
Environmental due diligence
Regulatory coordination challenges

▲Active Projects

Discharge monitoring
Wastewater management compliance projects
Feasibility studies
Groundwater monitoring wells installation
Compliance audits
Site investigations
Environmental due diligence
Contaminated site remediation
Gap analyses
Remedial investigations

Hiring Activity

Steady25 roles · 10 in 30d

Department

Engineering

24

Seniority

Senior

11

Principal

7

Mid

3

Junior

2

Staff

1

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About Terraphase Engineering Inc.

Terraphase Engineering, founded in 2010 and headquartered in Oakland, California, serves environmental and engineering challenges in remediation, geotechnical work, stormwater design, and industrial wastewater treatment. The firm works with clients on site assessments, brownfield redevelopment, contaminated-site remediation, regulatory compliance audits, and litigation support. Their technology stack centers on specialized domain tools—MODFLOW for groundwater modeling, HEC-RAS and SWMM for stormwater hydraulics, ArcGIS and AutoCAD for spatial and engineering design—alongside standard office software. The firm operates across the U.S. with a primarily engineering-focused workforce.

HeadquartersOakland, California

Company Size201–500 employees

Founded2010

Hiring MarketsUnited States

Frequently Asked Questions

What does Terraphase Engineering do?

Terraphase provides environmental remediation, geotechnical engineering, stormwater design, and compliance services. Their work spans site assessments, groundwater treatment, brownfield redevelopment, wastewater management, and regulatory support for contaminated and industrial properties.

What tech stack does Terraphase Engineering use?

MODFLOW (groundwater modeling), HEC-RAS and SWMM (stormwater hydraulics), ArcGIS and AutoCAD (spatial and design), plus standard Microsoft Office and Adobe tools. The stack reflects specialized environmental engineering rather than software platform development.