What is a Network Engineer at AECOM?

At AECOM, the role of a Network Engineer takes on a highly specialized and impactful form. In the context of our infrastructure and environmental planning divisions, this position is formally recognized as a Transmission Siting and Routing Specialist. Rather than dealing with IT networks and data packets, you will be engineering and routing physical utility networks—specifically high-voltage transmission lines, substations, and oil or gas pipelines. You are the critical link between complex engineering requirements, environmental preservation, and community impact.

Your work will directly support AECOM’s mission to deliver a better world by keeping the lights on, providing access to essential resources, and building resilient infrastructure. Operating within the Mid-Atlantic Environmental Planning and Permitting (EPP) department, you will tackle spatial challenges that require balancing regulatory frameworks with geographic constraints. The scale of these linear projects spans multiple states and impacts millions of residents, making your strategic decisions highly visible and deeply consequential.

Stepping into this role means joining a global team of over 50,000 professionals where your expertise in geographic information systems (GIS) and environmental assessments will drive massive capital projects. You can expect a highly collaborative, interdisciplinary environment where your routing studies and siting alternatives directly shape the physical landscape of the future.

Common Interview Questions

Getting Ready for Your Interviews

Preparing for an interview at AECOM requires a clear understanding of how we evaluate candidates for specialized infrastructure roles. You should approach your preparation by reflecting on your past linear routing projects and how you navigate the complexities of environmental planning.

Technical and GIS Proficiency Our teams rely heavily on advanced spatial data analysis to make informed routing decisions. Interviewers will evaluate your hands-on experience with ESRI platforms, specifically ArcPro and geodatabase management. You can demonstrate strength here by clearly explaining your methodology for layering environmental, topographical, and regulatory data to map viable utility corridors.

Environmental and Regulatory Acumen Routing a transmission line is as much about regulatory compliance as it is about engineering. We assess your ability to conduct desktop environmental data inventories and complete environmental impact assessments. Strong candidates will confidently discuss their familiarity with state-specific utility commission filings and environmental constraints, particularly within the Mid-Atlantic region.

Stakeholder and Project Communication Because these projects directly impact communities, you will frequently interface with clients, regulatory bodies, and the public. Interviewers will look for your ability to translate complex spatial data into digestible technical reports and mapping packages. Showcasing your experience in leading client meetings or preparing materials for public hearings will significantly boost your profile.

Problem-Solving in Ambiguous Constraints Linear routing inevitably encounters roadblocks, from protected wetlands to difficult landowners. We evaluate how you weigh competing priorities to develop viable siting alternatives. You should be prepared to walk interviewers through past scenarios where you had to pivot a routing strategy due to unforeseen environmental or public constraints.

Interview Process Overview

The interview process for a Transmission Siting and Routing Specialist at AECOM is designed to be rigorous, practical, and highly focused on your past project deliverables. You will typically begin with a recruiter screen that verifies your core qualifications, such as your US Citizenship, driver's license status, and baseline GIS experience. This is followed by a deeper technical interview with a Senior Project Manager or regional EPP department lead.

During the technical rounds, the pace becomes highly analytical. You will not just be asked what tools you use, but how you use them to solve specific routing challenges. Expect to discuss your portfolio of past routing studies, how you structure your geodatabases, and your experience with environmental impact assessments. AECOM’s interviewing philosophy heavily emphasizes tangible evidence of past success, so be prepared to speak in detail about specific linear projects you have guided from concept to regulatory approval.

The final stages usually involve a panel interview with cross-functional team members, including environmental scientists and engineering leads. This stage tests your collaborative skills and your ability to act as a technical specialist within a larger, interdisciplinary team. The focus here shifts slightly toward cultural alignment, client management, and your readiness to mentor junior staff or assist with business development proposals.

The visual timeline above outlines the typical progression from the initial recruiter screen through the final technical panel. You should use this to pace your preparation, ensuring you have your technical GIS examples ready for the early hiring manager rounds, while saving your broader project management and stakeholder communication narratives for the final panel. Note that timelines can vary slightly depending on the specific Mid-Atlantic office (e.g., Philadelphia, Pittsburgh, or Arlington) you are aligning with.

Deep Dive into Evaluation Areas

Linear Routing and Siting Studies

This is the core of the role and the most heavily weighted evaluation area. Interviewers need to know that you understand the end-to-end lifecycle of routing a physical utility network, whether it is a high-voltage transmission line or a new gas pipeline. Strong performance means you can articulate the criteria used to select a route, including engineering feasibility, environmental impact, and cost considerations.

Be ready to go over:

• Corridor Selection – How you identify macro-corridors and narrow them down to specific alignments.
• Alternatives Development – Your process for generating and comparing multiple viable routes.
• Constraint Mapping – How you handle physical and regulatory roadblocks during the routing phase.
• Advanced concepts – Co-location strategies with existing infrastructure, right-of-way (ROW) acquisition challenges, and managing constructability constraints.

Example questions or scenarios:

• "Walk me through a recent transmission routing study you led. How did you determine the final recommended route among your alternatives?"
• "Describe a time when a preferred route was suddenly deemed unviable due to a newly discovered environmental constraint. How did you pivot?"

GIS and Spatial Data Analysis

Your ability to manipulate spatial data is what makes your routing studies possible. Interviewers will probe your technical proficiency with ESRI products, specifically ArcPro. We are looking for candidates who do more than just view maps; you must be able to build complex geodatabases, run spatial analyses, and generate quantitative metrics that justify your routing choices.

Be ready to go over:

• ESRI Platform Mastery – Your day-to-day workflow in ArcPro and managing enterprise geodatabases.
• Data Inventory and Review – How you source, verify, and integrate desktop environmental data from public and private databases.
• Mapping Packages – Your approach to creating clear, professional cartographic outputs for clients and regulators.

Example questions or scenarios:

• "Explain how you structure a geodatabase for a new multi-state linear infrastructure project."
• "If you are given incomplete environmental data for a critical routing segment, how do you use GIS tools to estimate the potential impacts?"

Environmental Permitting and Regulatory Compliance

A technically perfect route is useless if it cannot be permitted. You will be evaluated on your understanding of the regulatory landscape, particularly how environmental impact assessments influence project timelines. Strong candidates will demonstrate deep familiarity with Public Utility Commission (PUC) requirements and the specific environmental hurdles common in the Mid-Atlantic region.

Be ready to go over:

• Impact Assessments – Your methodology for quantifying impacts on wetlands, cultural resources, and endangered species.
• PUC Filings – Your experience preparing technical documentation for state utility regulators.
• Regional Knowledge – Familiarity with the regulatory nuances of PA, NJ, DE, MD, VA, or WV.

Example questions or scenarios:

• "Detail your experience contributing to a public utility commission filing. What specific technical reports did you author?"
• "How do you balance client timeline expectations with stringent environmental permitting requirements?"