CBTC Signal Engineer

Overview

Review and approve mixed-mode CBTC and fixed‑block signal designs for NYCT.

Key Responsibilities

• interface alignment
• logic evaluation
• test review
• block design
• interlocking
• liaison

Tasks

-Support interface alignment between CBTC zone controller logic, relay interlockings, and field signal equipment. -Perform additional responsibilities as required to support the successful integration, validation, and acceptance of the CBTC and fixed-block signaling systems. -Evaluate software state machine logic used to implement interlocking functions in CBTC subsystems and ensure proper alignment with NYCT signaling principles and operational rules. -Review and approve test procedures related to interlocking logic, signal aspects, and control sequences to confirm compliance with Authority and NYCT requirements. -Provide technical review and approval of block design drawings and documentation for mixed-mode (CBTC and fixed-block) operation. -Review and assess interlocking logic implementation within both the relay-based fixed-block design and CBTC subsystem software, ensuring operational and safety compliance. -Provide assurance that signal design changes maintain interoperability, safety integrity, and system maintainability during migration from fixed-block to CBTC control. -Participate in design and field review meetings with NYCT Engineering, Operations Planning, and Maintenance teams to address design, testing, and configuration issues. -Serve as the primary liaison between the CBTC supplier, designer, and NYCT Operations for all matters related to signal design coordination and block approval. -Track and report on signal design deliverables, test progress, and open design comments requiring NYCT review or resolution.

Requirements

• bachelor's
• 10+ years
• cbtc
• interlocking
• i2s
• test sequencing

What You Bring

-Bachelor’s degree in electrical, systems, or railway engineering; a minimum of 10 years of progressive experience in fixed-block and CBTC signaling system maintenance and/or design may be considered in lieu of a degree. -Experience developing or reviewing interlocking logic test procedures and software state machine implementations. -Effective communicator able to represent technical findings and recommendations to NYCT operations and design teams. -Proven record of reviewing, approving, and coordinating block design packages for mixed-mode signaling operation. -Strong understanding of NYCT signal principles, operational practices, and legacy control systems. -Working knowledge of interlocking design, block layouts, overlap logic, and control line functions. -Familiarity with Interface Interoperability Specification (I2S) and NYCT’s signal design standards. -Prior involvement in at least one major CBTC deployment or migration project within NYCT or a comparable transit agency. -Ability to work during off-hour testing or commissioning as needed. -Understanding of test sequencing, verification, and validation of signaling systems within mixed-mode operation. -Exceptional analytical and diagnostic skills for reviewing detailed circuit and software logic. -Ability to support field reviews, test witnessing, and agency coordination meetings. -Full understanding of vital and non-vital signal logic, relay-based control circuits, and their translation into CBTC subsystem software.

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About Wsp

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