Principal Control Systems Engineer

JR United Kingdom; London; Hybrid; GBP 45,000 - 70,000; Full time

Job summary

A leading company in military, defence, and cyber solutions is seeking a Principal Control Systems Engineer to develop mission-critical naval operations systems. This hybrid role requires expertise in PLC and SCADA systems, with strong opportunities for flexible working arrangements and a performance bonus. Candidates must possess a degree in a related engineering discipline and have significant experience designing large-scale control systems.

Benefits

Flexible and hybrid working options

Compressed working schedule

Performance bonus

Qualifications

• 5+ years in a PLC engineering environment.
• Experience in large-scale PLC Control Systems with Siemens S7-300/400.
• Eligible for SC Clearance and single UK citizenship.

Responsibilities

• Capture, interpret, and develop customer requirements.
• Specify, design, and test solutions for PLC control systems.
• Validate software designs through analysis and test.

Skills

Siemens PLCs

SCADA Solutions

Fault Tolerant Systems

Industrial Communication Protocols

Software Development Lifecycles

Education

Degree in Electrical/Electronic Engineering

Job description

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Client:

SmartSourcing PLC

Location:

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

09.07.2025

Expiry Date:

23.08.2025

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Job Description:

Principal Control Systems Engineer (PLC AND SCADA) Security Clearance will be gained if eligible

Highly competitive salary and benefits

Hybrid and compressed working: Kingston-upon-Thames, Surrey

Our global client are specialists in their field of military, defence and cyber solutions and their work is critical to the security of the world we live in today.

This is an amazing opportunity for an experienced PLC Control Systems Engineer who will play a critical role in the development of mission critical naval operations systems. The role will suit an experienced systems engineer with Siemens PLCs who has worked on large-scale infrastructure SCADA solutions.

Our client operates as a centre of excellence for systems and software. They develop and support internationally deployed command and control solutions.

Flexible and hybrid working options

Compressed working schedule

Performance bonus.

Your Mission in the Company:

Capture, interpret and develop customer requirements

Produce technical documentation in accordance with company/customer procedures

Specify, design and test solutions for PLC control systems
Manage data communications with third party equipment
Develop PLC software from multiple design formats such as Block Diagrams, Flow Charts or Pseudo Code

Validate software designs through analysis and test
Support the preparation of contract changes and proposals
Essential Requirements:

Eligible for SC Clearance (minimum 5 years UK residency). Single UK citizenship

5+ years in a PLC engineering environment

Design and integration of large-scale PLC Control Systems based on Siemens S7-300/400 (Step 7 Professional Classic).

Experience of Fault Tolerant, High Availability and Safety Integrated PLC Solutions
Experience of Industrial Communication protocols and networking standards such as; Profibus, Profinet, EtherNet/IP, ModBus, TCP/IP, UDP and ASCII
Production of technical documentation
SCADA/PLC interfacing and driver configuration
Software development lifecycles, processes and procedures
Understanding of testing and commissioning
Degree, HNC, HND or equivalent in Electrical/Electronic engineering or a related discipline

Experience within Defence, Maritime (Ships machinery and control systems), Aerospace, or a similarly regulated industrial sector (e.g. Oil Gas, Pharma or PetroChem)