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AECOM

Signals Engineer

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AECOM Transportation in Philadelphia is seeking a Signals Engineer to support the design, development, and implementation of signal engineering solutions for rail and transit infrastructure projects.

Key Responsibilities:

  • Assist in the design of signal systems for light rail, heavy rail, commuter rail, or freight lines in accordance with industry standards and client specifications (e.g., AREMA, FRA, SEPTA, Amtrak, etc.).
  • Develop signal layout plans, interlocking schematics, cable plans, crossing design control tables, route and aspect charts.
  • Support the preparation of detailed technical specifications, bill of materials, and cost estimates.
  • Coordinate with civil, traction power, and systems engineering disciplines to ensure seamless integration of signal systems.
  • Review and interpret as-built drawings, field survey data, and existing infrastructure documentation.
  • Conduct site investigations and support field testing, signal cutovers, and commissioning activities.
  • Interface with clients, contractors, and suppliers during project delivery phases.
  • Ensure compliance with applicable safety, quality, and environmental regulations.
  • Assist with project documentation, design reports, submittals, and review responses.

Minimum Requirements:

  • Bachelor’s degree in Electrical Engineering, Systems Engineering, or a related field plus 4 years of relevant experience in rail signal design, testing, or construction.
  • Experience with AREMA guidelines, FRA regulations, and signal design practices.
  • Experience with CAD software (e.g., AutoCAD, MicroStation); knowledge of relay or microprocessor-based interlocking systems is a plus.
  • Experience with reading and programming logic and vital logic equations.
  • Experience working on or with microprocessor-based vital logic controllers such as ElectroLogIXS and microlock II.
  • Experience the working principles of DC and AC track circuits.
  • Experience with CAB signaling design and coded track circuits, audio frequency track circuits, and phase shift overlay circuits.
  • Professional Engineer (PE) licensure or ability and willingness to obtain within two years of hire.

Preferred Qualifications:

  • Working knowledge of legacy and modern interlocking systems (vital relays, solid state, or CBTC).
  • Familiarity with signal vendors (e.g., Siemens, Alstom, Hitachi, Wabtec).
  • Field or construction support experience including signal cutover or testing.
  • Strong problem-solving, written communication, and documentation skills.
  • Ability to work collaboratively in multidisciplinary teams.
  • Relocation assistance may be available for this role.
  • We are interested in every qualified candidate eligible to work in the United States. Sponsorship may be available for current visa holders in the United States.

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.