Control Systems Software Engineer

Searchability; Greater London; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

A tech recruitment agency is seeking a Control Systems Software Engineer to work on mission-critical naval platform management systems. This role involves full development lifecycle and in-service support of safety-critical PLC and SCADA/HCI solutions for the UK submarine fleet. The successful candidate must possess strong experience in client-server applications, control systems development, and programming in C++, C#, or Java. The position is hybrid and requires SC clearance.

Qualifications

• Experience in client-server applications development.
• Strong understanding of OOP, data structures, and algorithms.
• Programming experience in C++, C#, or Java.
• Experience with control systems and GUI development.
• Familiarity with unit testing frameworks.
• Experience in software configuration management.
• Knowledge of Industrial Ethernet communication standards.
• Hands-on PLC integration (Rockwell and/or Siemens).
• Minimum of 2 years in a software engineering role.
• Understanding of Functional Safety standards (BS EN 61508, 61511, 62061).

Responsibilities

• Produce functional and design specifications for control system software.
• Design, develop, and maintain high-quality code.
• Interpret and refine customer and system requirements.
• Develop and implement PLC and SCADA/HCI applications.
• Integrate data communications with third-party equipment.
• Produce technical documentation to standards.
• Support and conduct Factory Acceptance Tests (FATs).
• Contribute to system support.
• Ensure compliance with safety and statutory requirements.

Skills

Client-server application development

OOP fundamentals

C++

C#

Java

Control systems development

Unit testing frameworks

Software configuration management

Industrial Ethernet protocols

PLC integration

Functional Safety understanding

Education

Degree, HNC, HND, or equivalent in Software, Systems, or Electrical/Electronic Engineering

Job description

Control Systems Software Engineer (PLC / SCADA)

Location: London (Hybrid)
Clearance: SC Cleared
To apply, email: [e-mail] or call 07704 152 640

Overview

An opportunity for an experienced Control Systems Software Engineer to work on mission-critical naval platform management systems within a highly regulated defence environment. The role covers full lifecycle development and in-service support of safety-critical PLC and SCADA/HCI solutions supporting the UK submarine fleet.

Key Responsibilities

• Produce functional and design specifications for control system software

• Design, develop, and maintain high-quality, maintainable code

• Capture, interpret, and refine customer and system requirements

• Develop and implement PLC and SCADA/HCI applications

• Integrate data communications with third-party equipment

• Produce technical documentation to internal and customer standards

• Support and conduct Factory Acceptance Tests (FATs)

• Contribute to in-service and through-life system support

• Ensure compliance with company policies, safety, and statutory requirements

Essential Skills andamp; Experience

• Experience developing client–server applications

• Strong computer science fundamentals (OOP, data structures, algorithms)

• Programming experience in C++, C#, or Java

• Control systems and graphical user interface development experience

• Familiarity with unit testing frameworks

• Experience with software configuration management and version control

• Industrial Ethernet communication protocols and networking standards

• Hands‑on PLC integration experience (Rockwell and/or Siemens)

• Minimum 2 years in a software engineering environment

• Degree, HNC, HND, or equivalent in Software, Systems, or Electrical/Electronic Engineering

• Understanding of Functional Safety standards (BS EN 61508, 61511, 62061)

Desirable Background

• Experience within Defence, Maritime, Aerospace, or similarly regulated sectors (Oil andamp; Gas, Pharma, Petrochemical)