Janssen & Spaans Engineering, Inc. Tech Stack

Civil engineering firm specializing in transportation and bridge design

Civil Engineering Indianapolis, IN 51–200 employees Founded 1976 Privately Held

Janssen & Spaans Engineering is a 51–200-person civil engineering firm anchored in transportation infrastructure design—bridges, roadways, and complex intersections. The tech stack is classic CAD-heavy (AutoCAD, Civil 3D, MicroStation, BIM, Bentley), with no active adopting or replacing signals, which reflects a mature, stable engineering operation. Hiring is concentrated in senior engineers (9 of 10 open roles), and active projects span design-build, P3, and DOT work, all pointing to a firm managing large, regulated infrastructure contracts where design accuracy and cost control are make-or-break.

Tech Stack 12 technologies

Core StackAutoCAD Civil 3D MicroStation BIM Word Excel PowerPoint Outlook Mathcad Microsoft Office Teams Bentley

What Janssen & Spaans Engineering, Inc. Is Building

◆Challenges

Cost-effective designs on time and under budget
Identify and manage risk
Meeting cost targets
Meeting deadlines
Ensuring design accuracy

▲Active Projects

Roadway projects
Design build and p3 projects
Urban streets
Intersections including roundabouts
Bridge design projects
Design-build, p3, dot, and local municipality projects
Interstate road design
Design-build infrastructure projects
P3 delivery projects

Hiring Activity

Steady10 roles · 4 in 30d

Department

Engineering

Construction

Seniority

Senior

Mid

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About Janssen & Spaans Engineering, Inc.

Founded in 1976, Janssen & Spaans Engineering provides transportation and structural design services to government agencies, contractors, and consultants across the United States and internationally. The firm is headquartered in Indianapolis with branch offices in Columbus, Chicago, and Florida. Its core expertise is bridge and road design, particularly post-tensioned concrete structures and complex transportation corridors. Work includes design-build projects, public-private partnerships, state DOT work, and urban streetscape design. The firm operates on a lean operational model—most active hiring is for senior engineering roles, indicating growth through expertise depth rather than headcount expansion.

HeadquartersIndianapolis, IN

Company Size51–200 employees

Founded1976

Hiring MarketsUnited States

Frequently Asked Questions

What technology does Janssen & Spaans Engineering use?

The firm uses AutoCAD, Civil 3D, MicroStation, and Bentley for design work, plus standard Microsoft Office (Word, Excel, PowerPoint, Outlook, Teams) and Mathcad for calculations. BIM is also part of their workflow.

What kinds of projects does Janssen & Spaans work on?

Focus areas include bridge design, roadway design, urban streets, intersections (including roundabouts), and interstate road design. Many projects are structured as design-build, P3 (public-private partnership), or DOT contracts with local municipalities.