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Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

AECOM is seeking a talented Junior Level OCS (Overhead Catenary Systems) Engineer to join our World Class Rail team based in Philadelphia, PA.

The ideal candidate will be part of the Overhead Catenary Systems (OCS) Engineering team responsible for a variety of engineering tasks including, but not limited to planning, conceptual engineering, design, final engineering, constructability, and cost estimating.

Typical tasks and daily duties:

• Perform calculations for all phases of design including wire tensions, pantograph security, support structure capacity, overhead clearance, pole layouts, foundations and down guys.
• Develop overhead catenary systems layout drawings, profiles, hanger tabulations, erection diagrams and technical specifications.
• Apply knowledge and understanding of rail design, rail operations and construction on or about a railroad, overhead catenary systems, traction power substations, signals and communications systems, and track layout.
• Ensure compliance with all federal, state & local regulations Overhead Catenary System (OCS).

Minimum Qualifications:

• Bachelors Degree in Structural, Electrical, or Mechanical Engineering or related field.

PREFERRED :

• Experience designing and implementing a variety of overhead system types including auto-tensioned and fixed termination systems, simple catenary and single contact wire/trolley wire, as well as both AC and DC systems.
• Experience in the design and analysis of overhead electrification systems, including a variety of project scopes and design phases ranging from preliminary design through construction
• Experience utilizing AutoCAD and MicroStation into the design of electrification systems.
• Should also have knowledge of a variety of design software packages, including STAAD, LPile and MathCAD.
• Experienced in the development of specifications, cost estimating, construction staging, and design around active railroad and should be familiar with construction and installation practices.

• Sponsorship for US employment authorization is not available now or in the future for this position.
• Relocation assistance is not available for this position.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.