APTIM Tech Stack

Environmental remediation and infrastructure resilience for government and industrial clients

Environmental Services Baton Rouge, Louisiana 1,001–5,000 employees Privately Held

APTIM operates a services-heavy firm built on engineering design tools (AutoCAD, Civil 3D, ANSYS, ArcGIS) and project management infrastructure (Primavera P6, Salesforce), now adopting LiDAR for site characterization. The hiring mix—228 engineering roles against 71 ops, 48 construction, and only 11 sales—reflects a government-services and project-execution business model rather than a product company. Active projects span nuclear decommissioning, PFAS remediation, and emergency response infrastructure, with compliance and regulatory complexity as core operational challenges.

Tech Stack 65 technologies

Core StackMATLAB Python Primavera P6 AutoCAD ArcGIS Salesforce Revit Power BI OpenDSS PSCAD Microsoft Office Excel HEC-RAS Word SharePoint Online PowerPoint Mathcad STAAD ANSYS MicroStation ETAP Inventor Civil 3D Microsoft Project Autodesk Civil 3D Grinder Microstation SQL SWMM GIS+33 more

AdoptingLiDAR

What APTIM Is Building

◆Challenges

Nuclear decommissioning
Compliance with federal regulations
Environmental compliance audits
Ensuring doe compliance
Radiological contamination cleanup
Growing backlog of environmental remediation projects
Remediation of pfas contaminated sites
Driving program performance
Employee relations risk
Expanding new permitting and regulatory services business

▲Active Projects

Remediation projects
Phase i and phase ii environmental site assessments
Hazardous waste compliance projects
Homes program
Nuclear decontamination and decommissioning projects
Decontamination and decommissioning of kesselring naval training facility
Remedial investigations
Redevelopment project
Initial setup of project infrastructure for emergency response teams
Beach nourishment

Hiring Activity

Accelerating400 roles · 220 in 30d

Department

Engineering

228

Ops

Construction

Legal

Sales

Environmental

Marketing

Product

Seniority

Senior

141

Mid

116

Junior

Intern

Director

Manager

C-Level

Notable leadership hires: Program Director, Practice Director, Sustainability Solutions Director, Labor Relations Director, Engineering Lead

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About APTIM

APTIM is a professional services firm headquartered in Baton Rouge, Louisiana, serving government agencies, commercial clients, and energy companies with environmental remediation, infrastructure resilience, and sustainability solutions. The company specializes in high-complexity, long-cycle work: nuclear decommissioning and decontamination (including naval facility projects), hazardous waste compliance, environmental site assessments, and emergency response coordination. With 1,001–5,000 employees and 404 active job openings (216 posted in the last 30 days), the firm is accelerating hiring across engineering and operations to manage a growing backlog of environmental remediation projects while expanding permitting and regulatory services.

HeadquartersBaton Rouge, Louisiana

Company Size1,001–5,000 employees

Hiring MarketsUnited States, Peru

Frequently Asked Questions

What tech stack does APTIM use?

APTIM leverages engineering design tools (AutoCAD, Civil 3D, ANSYS, STAAD, Revit, MicroStation), simulation software (OpenDSS, PSCAD, HEC-RAS, SWMM), project management (Primavera P6, Microsoft Project), GIS platforms (ArcGIS), and enterprise tools (Salesforce, Power BI, SQL). The firm is adopting LiDAR for environmental site characterization.

What is APTIM working on?

Current projects include nuclear decommissioning and decontamination (Kesselring Naval Training Facility), PFAS-contaminated site remediation, hazardous waste compliance, Phase I/II environmental site assessments, emergency response infrastructure setup, beach nourishment, and redevelopment site work.