Lead operational technology systems design in Newmarket, Ontario, combining Java, PHP, HTML, and SQL with industrial infrastructure expertise. This is an onsite position.
Celestica seeks a Lead Engineer, Systems/Applications, serving as the site OT lead. You will integrate production equipment, secure industrial assets, and maintain applications supporting shop floor control. The work spans requirements engineering, reliability, testing, disaster recovery, and system lifecycle management.
Key Responsibilities: Bridge corporate IT compliance and factory-floor operational technology
Develop applications integrating production equipment with shop floor controls
Address OT vulnerabilities while protecting production continuity




Build software solutions and maintain legacy manufacturing applications
Design, test, troubleshoot, and document technical systems
Requirements: Five to seven years of related experience
Bachelor degree or equivalent education and experience
Programming skills in Java, PHP, HTML, and SQL
Infrastructure knowledge and familiarity with Linux operating systems
Canadian citizenship or permanent residency for Controlled Goods requirements
Apply systems engineering, programming, and OT security expertise to support Celestica manufacturing operations in Newmarket.

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📌 Lead OT Systems Applications Engineer (Ontario)
🏢 Celestica
📍 Ontario