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

The questions below represent the patterns and themes you will encounter during your interviews. They are designed to test your applied knowledge of routing, GIS, and environmental planning rather than theoretical concepts.

Technical Routing and GIS

These questions assess your hands-on ability to use spatial data to solve physical infrastructure challenges.

• Walk me through your step-by-step process for developing routing alternatives for a new 100-mile transmission line.
• How do you utilize ArcPro and geodatabases to quantify the environmental impacts of a proposed utility corridor?
• Describe a complex spatial analysis you performed to resolve a siting dispute.
• What qualitative and quantitative metrics do you typically include in a siting study report?
• How do you ensure data integrity and quality control when managing a massive geodatabase for a multi-year linear project?

Environmental Constraints and Permitting

These questions evaluate your ability to navigate the regulatory realities of infrastructure development.

• Tell me about a time you had to alter a preferred route due to unexpected environmental constraints (e.g., wetlands, endangered species habitats).
• Describe your experience preparing technical documentation for Public Utility Commission (PUC) filings.
• How do you prioritize conflicting environmental and engineering constraints when both cannot be fully satisfied?
• What specific environmental data sources do you rely on when conducting a desktop inventory in the Mid-Atlantic region?

Stakeholder Communication and Leadership

These questions focus on your ability to translate technical data for non-technical audiences and work within interdisciplinary teams.

• Describe a situation where you had to present complex routing alternatives to a client or at a public meeting. How did you handle pushback?
• Give an example of how you have collaborated with engineering and environmental teams to meet a tight, client-driven deadline.
• How do you approach performing technical and quality reviews of work completed by junior GIS staff?
• Tell me about a time you assisted in developing a proposal or qualifications package to win new business.

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?"

Key Responsibilities

As a Siting and Routing Specialist, your day-to-day work is a blend of intense desktop analysis and dynamic stakeholder engagement. A primary responsibility is conducting desktop environmental data inventory collections. You will spend significant time in ArcPro, layering datasets to identify fatal flaws and opportunities within potential utility corridors. You will actively manage geodatabases, ensuring that all spatial data is accurate, up-to-date, and properly formatted for qualitative and quantitative analysis.

Beyond the screen, you will be responsible for translating your spatial findings into comprehensive technical siting study reports and mapping packages. These deliverables are critical, as they form the backbone of environmental impact assessments and regulatory filings. You will collaborate closely with AECOM Senior Project Managers, environmental scientists, and engineering teams to ensure that your proposed routes meet all technical and environmental criteria before they are presented to the client.

Your role also carries a strong outward-facing component. You will participate in and occasionally lead client meetings to present your routing alternatives and defend your methodology. Furthermore, you will assist in preparing for public meetings and site walkdowns, acting as the technical authority on why specific routes were chosen. As a senior-level specialist, you will also be expected to perform quality reviews on work completed by junior staff and assist leadership with business development proposals to win new infrastructure contracts.

Role Requirements & Qualifications

To be competitive for this position at AECOM, you must blend technical GIS expertise with a deep understanding of environmental planning and linear infrastructure.

• Must-have skills – You must have robust, demonstrable experience in siting and routing for linear projects (transmission lines, substations, or oil/gas pipelines). Proficiency in ESRI based GIS platforms, specifically ArcPro, is non-negotiable. You must also possess strong technical writing skills for compiling siting study reports and environmental impact assessments.
• Must-have qualifications – A BA/BS in Environmental Science, Geographic Information Systems, Environmental Planning, or a related field is required, along with at least 6 years of demonstrated experience. Due to the nature of our federal and critical infrastructure work, US Citizenship is mandatory, as is a valid driver's license and a clean motor vehicle record.
• Nice-to-have skills – Candidates with 5-10 years of direct experience will stand out. In-depth working knowledge of the Mid-Atlantic region (PA, NJ, DE, MD, VA, WV, OH, IN, IL, KY) is highly preferred, as it dramatically reduces the learning curve for regional regulatory frameworks.
• Leadership and BD – Experience in team leadership, mentoring junior staff, and assisting with business development or qualifications packages will elevate your candidacy from a technical contributor to a strategic asset.

Frequently Asked Questions

Q: How technical are the GIS portions of the interview? You should expect the GIS questions to be highly applied. Interviewers will not ask you to write code or take a software test, but they will expect you to fluently describe your workflows, geodatabase structures, and specific ESRI tools you use to conduct spatial analysis and generate mapping packages.

Q: What is the travel expectation for this role? While much of the work involves desktop analysis, you will be required to participate in site walkdowns, client meetings, and public hearings. This may require extended hours, evening work for public meetings, and occasional overnight travel, primarily within the Mid-Atlantic region.

Q: Does AECOM support remote work for this position? Yes, hybrid and teleworking opportunities are available through AECOM’s Freedom to Grow initiative. This program offers flexibility in where and how you work, though you will still need to be accessible to one of the Mid-Atlantic offices (Greater Philadelphia, Pittsburgh, or Arlington/DC Metro) for critical in-person collaboration.

Q: What differentiates an average candidate from a top-tier candidate? An average candidate can use GIS to draw a line on a map. A top-tier candidate understands the "why" behind the line—they can articulate the environmental, regulatory, and engineering trade-offs, write the technical reports to defend the route, and confidently present those findings to utility commissions and the public.

Other General Tips

• Highlight Mid-Atlantic Expertise: If you have experience routing projects in PA, NJ, MD, or VA, make sure to bring it up early and often. Familiarity with local terrain and state-specific regulatory bodies is a massive value-add for the EPP department.
• Structure Your Project Narratives: When answering behavioral or project-based questions, strictly follow the STAR method (Situation, Task, Action, Result). Focus heavily on the Action phase, detailing exactly which GIS tools you used and how you weighted different siting criteria.

• Showcase Cross-Functional Collaboration: AECOM operates as one global team. Emphasize instances where you proactively collaborated with civil engineers, environmental scientists, or project managers to keep a project on schedule.
• Embrace the Business Development Angle: The job description specifically notes assisting with proposals and client development. Even if your past roles were strictly technical, express enthusiasm for helping AECOM win new work and grow the Mid-Atlantic portfolio.

Summary & Next Steps

Stepping into the Network Engineer / Siting and Routing Specialist role at AECOM is an opportunity to directly shape the infrastructure that powers our world. You will be at the forefront of critical energy and utility projects, using your spatial analysis skills to solve complex geographic and environmental puzzles. The work you do here has a tangible, lasting impact on communities and the environment.

Your preparation should focus heavily on bridging the gap between technical GIS execution and strategic environmental planning. Be ready to confidently discuss your past routing alternatives, your mastery of ArcPro, and your ability to navigate regulatory filings. Remember that interviewers are looking for a collaborative problem-solver who can take ownership of a routing study from the initial desktop inventory all the way to the final public meeting.

The compensation data above provides a baseline expectation for roles at this level within the environmental planning and engineering space. Keep in mind that your specific offer will heavily depend on your years of direct routing experience, your regional expertise in the Mid-Atlantic, and your ability to lead projects independently.

You have the technical foundation and the project experience required to excel in this process. Approach your interviews with confidence, lean into your specialized knowledge of linear infrastructure, and clearly articulate the value you bring to complex environmental planning challenges. For more insights and targeted preparation strategies, continue exploring the resources available on Dataford. Good luck—you are ready for this!