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PLC / OT Developer

Sqa GroupLowell, MAMay 3rd, 2026
SQA Group is seeking a senior OT Developer (Operational Technology Developer) to support industrial control systems within a GxP regulated environment.This role is responsible for developing and supporting industrial control systems and OT solutions in alignment with GAMP 5 and GxP compliance standards. The position includes PLC programming, SCADA/HMI development, data exchange implementation, and collaboration with cross-functional teams in an Agile/Nexus framework environment.Key ResponsibilitiesPLC programming using Siemens TIA Portal (STL/FBD/Ladder) and CODESYSSCADA/HMI development (Siemens WinCC, Ignition, Aveva)Implementing data exchange solutions using OPC DA/UA, MODBUS, Ethernet/IPSupporting DCS platforms (Delta-V and/or Siemens PCS)Developing validation documentation in regulated environmentsCollaborating with product owners, architects, and stakeholdersQualifications:7+ years of hands-on experience in industrial automation and control systems and OT technologiesStrong Siemens PLC programming expertise (TIA Portal, S7)SCADA/HMI development experience (WinCC preferred)Experience in GxP-regulated environmentsUnderstanding of GAMP 5 validation practicesAbility to integrate OT systems with enterprise platformsStrong collaboration within Agile/Nexus frameworks**Please note: this is a long-term consulting opportunity. Must be able to relocate if not currently in the Boston area.Thank you for your interest in working with SQA Group. SQA Group is an equal opportunity employer and supports workforce diversity. This job description is intended to describe the general nature and level of work being performed by the person assigned to this position. The primary duties and responsibilities above are intended to describe those functions that are essential to the performance of this job. This job description does not state or imply that the above are the only duties and responsibilities assigned to this position. All requirements are subject to possible modification to reasonably accommodate individuals with a disability.