Senior Instrument Designer – Petrofac – Aberdeen


Petrofac is seeking a Senior Instrument Designer – Contractor for 12 months based in Aberdeen, UK.

The role is outside IR35 and we invite Limited Companies to engage.

Scope of Services:

Provide design input to estimates for project work scopes 

Provide technical design expertise to specify modifications to existing equipment or purchasing new equipment including:

DCS, ESD F&G and Metering system modifications

Field Instrumentation including Pressure, Level, Temperature, Flow and Specialist Measurements.


SIL, High Integrity Systems (HIPPS)

Measurement and Metering

Industrial Networking and Communications

Provide technical design expertise to the resolution of technical queries ensuring that all design changes are captured by the change control process 

To be able to conduct site surveys on offshore or onshore assets 

To be able to produce calculations required for the role and participate in design reviews.  

Production of discipline documentation deliverables for inclusion in work packs.  

Provide a level of technical support that satisfies the appropriate Asset Safety Case and that the PFEER performance standards ensuring they are not compromised by any discipline engineering activities 

Compliance with company engineering procedures, industry, international and client codes and standards.  

Ensure that all work complies with the Contract Health, Safety, Environmental and Quality policies and procedures as appropriate.  


Block diagrams or Single line diagrams

Cause & Effect Diagrams 

Instrument Cable Block Diagram  

Cable Tray Routing & Layout Diagrams   

Panel; Control Room; F&G and Equipment Room Layouts  

Panel Wiring Diagram 

Destruct Drawing  

Instrument Mounting / Support Details 

Logic & Loop Diagrams 

Schematic Diagrams  

Cable Interconnection Diagrams  

Cable; Panel & Junction box Termination Diagram  

Junction Box Termination Diagram  

Pneumatic; Chemical and Hydraulic Hook-up Diagram  

Pneumatic; Chemical and Hydraulic Hook-up Schematic 

Installation or story board diagrams to facilitate understanding   

Cable Schedule  

Requisition – Bulk Bill of Materials 

Additional Information

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