Principal Control Systems Engineer

TEC Partners; London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading defence solutions provider in London is looking for an experienced Principal Control Systems Engineer to lead the design and testing of PLC systems. The ideal candidate will have at least 5 years in PLC engineering, deep expertise in Siemens Step 7, and be eligible for UK Security Check clearance. This position offers flexible working options and career development opportunities.

Benefits

Performance-based bonus scheme

Relocation support may be available

Career development and professional training

Qualifications

• Minimum 5 years of experience in a PLC engineering environment, ideally in a lead or senior capacity.
• Deep knowledge of Siemens Step 7 Classic and associated tools.
• Strong understanding of industrial protocols and system integration.

Responsibilities

• Capture, interpret, and develop complex customer requirements.
• Lead the design and testing of Siemens-based PLC control systems.
• Develop software using block diagrams, flow charts, or pseudo-code.

Skills

Siemens PLC

SCADA expertise

Fault-tolerant control systems

Industrial protocols knowledge

Education

HND, HNC, or Degree in Electrical/Electronic, Control & Instrumentation, or Systems Engineering

Tools

Siemens Step 7 Classic

Job description

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Principal Control Systems Engineer, London

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Client:

TEC Partners

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

c845ef605834

Job Views:

25

Posted:

12.08.2025

Expiry Date:

26.09.2025

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Job Description:

Are you an experienced engineer ready to lead the development of complex control systems within a secure and highly regulated defence environment? Our client, a key player in the UK defence sector, is seeking a Principal Control Systems Engineer with extensive Siemens PLC and SCADA expertise to join their specialist team.

Key Responsibilities:

• Capture, interpret, and develop complex customer requirements.
• Lead the design and testing of Siemens-based PLC control systems (S7-/).
• Develop software using block diagrams, flow charts, or pseudo-code.
• Produce and review high-quality technical documentation.
• Manage SCADA/PLC interfacing and industrial communications (e.g., Profibus, Profinet, ModBus, TCP/IP).
• Support system integration and commissioning activities.
• Provide technical leadership to junior engineers and project teams.
• Contribute to project planning, risk management, and customer liaison.
• Assist with proposal development and contract changes.

Ideal Candidate Profile:

• Minimum 5 years of experience in a PLC engineering environment, ideally in a lead or senior capacity.
• Deep knowledge of Siemens Step 7 Classic and associated tools.
• Experience with fault-tolerant and safety-integrated control systems.
• Strong understanding of industrial protocols and system integration.
• Proven ability to work across the full software lifecycle.
• HND, HNC, or Degree in Electrical/Electronic, Control & Instrumentation, or Systems Engineering.
• Background in Defence, Maritime, Aerospace, or other regulated sectors (e.g., Oil & Gas, Pharma, Petrochem).
• Flexible and hybrid working options, including compressed working weeks (e.g., every other Friday off).
• Career development, professional training, and mentoring opportunities.
• Performance-based bonus scheme.
• Relocation support may be available for eligible candidates.

Please note: Due to the nature of this role, UK citizenship is required. Applicants must be eligible to obtain and maintain UK Security Check (SC) clearance.