Senior Control Systems Design Engineer

Reports to: EC&I Departmental Manager

Department: Projects

Location: 30 Roman Ridge Road, Sheffield S9 1GA

Salary: Negotiable according to experience, 25 days annual leave plus statutory holidays, 5% matched pension contribution, Westfield Health, Life assurance 2x salary, flexi-time system, social room with darts, pool, video games etc


About Us

Sheffield based SCX Special Projects is a highly profitable business which started life over 30 years ago. It designs, builds, commissions and maintains bespoke engineering solutions to complex lifting and moving challenges for structures, materials and people for its customers in the nuclear energy, defence, aviation and kinetic architecture sectors.

Its highly-talented team of 60 has a global reputation having delivered numerous iconic projects in nuclear energy at Sellafield and Dounreay, retractable roofs for Wimbledon’s Centre Court and No. 1 Court, the world’s first dividing and retractable pitch at Tottenham Hotspur FC, on-board systems for the HMS Queen Elizabeth and HMS Prince of Wales aircraft carriers, advanced production line handling and test systems for Rolls Royce engines and F-35 Lightning jets, and many others.

With the backing of its investors Elysian Capital the business is implementing a strategy which will see significant domestic and international growth.

As a part of this growth plan SCX Special projects is currently looking for ten new members of its engineering, operations and HR teams. The teams will continue to grow over the next few years.


Job Summary

The Senior Control Systems Design Engineer will enhance the existing control system department in order to deliver best in class designs and operational excellence to our clients. The role will focus on the hardware design and validation of control systems and associated field equipment which will include PLC’s, VSD’s, Safety circuits and intelligent sensors, but experience of generating PLC/HMI software would be advantageous.

A key part of the overall output from the department is to ensure design compliance can be demonstrated through the generation of high level contract deliverables such as Design Substantiation Reports, Compliance Reports, Functional Design Specifications, Compliance Matrices, Safety Validation Reports etc, and the generation of AutoCad Electrical Drawings, GA’s and Cable Schedules which are in line with the design documentation.


About You 


  • Experience in the hardware design of electrical control systems and the generation of required design documentation

  • Ability to generate electrical schematic and GA drawings using AutoCad Electrical package.

  • Knowledge of Machinery Safety Design and Regulations (BS 13849-1) and use of SYSTEMA machine safety verification package

  • Knowledge of Variable Speed Drive’s

  • Knowledge of 18th Edition Electrical Wiring Regulations

  • A full UK driving licence is essential for this position as travelling between offices/sites may be required

  • Up to date knowledge of current Health and Safety Legislation including CDM Regulations



  • Knowledge and experience of Overhead Electrical Travelling Cranes (OHETC’s).

  • Knowledge of leading PLC/HMI suppliers (e.g. Siemens, Rockwell, Group Schneider)

  • Knowledge of Functional Safety Design and Regulations (BS EN 61508, BS EN 62061)

  • PLC/HMI programming skills

  • Knowledge of Amtech cable calculation package

  • Knowledge of control system instrumentation such as Laser Positioning systems, position and speed encoders, safe access systems

If you are interested in this role or other opportunities with SCX please contact our recruitment partner Chris Carter at Nicholas Associates Group in Sheffield:

Read on for more information about the Senior Control Systems Design Engineer role at SCX Special Projects in Sheffield


Main Duties and Responsibilities

  • Understanding of customer specifications and individual project control system requirements in order to be able to identify/clarify any contract scope of supply issues

    • Where variations to contract are identified, provide technical and commercial justifications for the changes to the Project Manager.

  • Working to the Project Program to ensure allocated work milestones for the control system design and supply elements of the contract are achieved.

  • Health & Safety objectives must be satisfied at all times whether activities are taking place in the office, workshop or on site.

  • Produce Basis of Design Specifications (BoD) for review with the Controls Dept Manager and contract Project Manager and/or client for comment/approval before the electrical design commences.

  • Produce a Functional Design Specification (FDS) for the contract and keep updated as the control system design develops such that the FDS can be used as a design verification document.

  • Produce Design Substantiation Reports (DSR) to demonstrate the validation of the design documentation

  • Produce Electrical Schematic drawings using AutoCAD Electrical drawing package

  • Produce panel general arrangement drawings using AutoCAD Electrical drawing package

  • Generate electrical Cable Block Diagrams and cable schedules for the electrical equipment to be installed

  • Produce electrical cabling sizing calculations to determine size and number of cores for cables to be installed

  • Facilitate and contribute to multidisciplinary Design Risk Assessments in line with BS 12100

  • Peer review and verify control system designs/documents generated by departmental colleagues meet client specifications and internal Design Risk Assessments

  • Working with mechanical design engineers, ensure the electrical equipment is integrated into the overall design of the crane/moving structure

  • Mentor and develop junior members of the EC&I department

  • Produce other technical documentation in line with contract requirements, typically, but not limited to:

    • Bill of Materials

    • Software design Specifications

    • Electrical Power Load calculations

    • Control Panel Heat calculations

    • Equipment Schedules

    • Factory Acceptance Testing documents

    • Site Acceptance Testing documents

  • Take responsibility for the selection of EC&I equipment to be used

  • Liaise with manufacturing and procurement personnel to ensure efficient and cost-effective purchasing of EC&I equipment

  • Follow SCX Special Projects QA procedures to ensure all control system works is designed and supplied to the requisite technical quality standards

  • Oversee and manage the electrical installation works for those contracts built and tested at our Assembly and Test Facility

  • Provide technical support and assist where necessary for Testing at SCX workshops prior to formal client witness testing

  • Provide technical support and assist where necessary for control system testing, commissioning and customer Factory Acceptance Testing at our Assembly and Test Facility

  • Provide technical support and assist where necessary for control system testing, commissioning, and customer Site Acceptance Testing on client sites

  • Manage and provide technical assistance to workshop based resource during the build of SCX system designs/projects.

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An SCX company

SCX Special Projects Ltd

Roman Ridge Road, Sheffield, S9 1GA, United Kingdom

t:  +44 (0)114 262 6199