Controls Software Engineer

Ganymede Solutions; Middleton St George; On-site; GBP 47,000 - 79,000; Full time

Job summary

Ganymede Solutions is seeking a PLC Software Contractor to design, develop and deliver PLC software for a live MOD project on site in North Yorkshire. You will lead from specification through to implementation, validation and commissioning of complex control systems within a regulated industrial setting.

You should have Siemens TIA Portal expertise and hold or be eligible for the UK SC security clearance, with experience in Defence or other regulated industries.

Qualifications

• Proven experience with Siemens TIA Portal in PLC software development.
• Strong understanding of automation systems and regulatory environments.
• Eligibility for UK Defence projects and SC clearance is required.

Responsibilities

• Develop and validate PLC software using Siemens TIA Portal across full lifecycle.
• Integrate digital communications and platform management systems within the project.
• Work from specification through to implementation, validation and commissioning while meeting standards and estimating effort.

Skills

Siemens TIA Portal

Industrial automation

Security clearance

Job description

PLC Software Contractor | Rate: £50.00 - £57.00p/h (Outside IR35)

North Yorkshire

Are you an experienced PLC Software Engineer with Siemens TIA Portal expertise and a background in Defence or regulated industrial environments, looking for a hands‑on contract supporting a genuinely high‑profile automation project? Do you enjoy working from specification through to implementation, validation and commissioning on complex control systems?

My client is an established manufacturer of precision sensing and monitoring technology, delivering solutions used across a range of regulated sectors including defence, energy, and industrial environments. They've built a strong reputation for reliability and operational integrity, with products used in demanding and safety‑critical settings.

Deliver PLC Software for a Live MOD Project

This is a hands‑on contract supporting the software delivery phase of a specialist automation and alarm monitoring system, with the architectural design already complete. You'll be working from specification through to implementation, taking ownership of PLC software development, digital communications and platform management system integration. You'll be working closely with a small, focused project team, reporting into the Embedded Software Engineering Manager.

Your responsibilities

Your day‑to‑day work will involve developing and validating PLC software using Siemens TIA Portal, working across the full scope from function blocks down to structured text. You'll need a strong understanding of automation systems, taking designs from specification through to implementation, and will play a key role in validating logic and estimating effort accurately across the project. You'll also need to work within defined standards and compliance requirements relevant to the sector, and will be integrating digital communications and platform management systems as part of the wider project delivery.

What We're Looking For

To be successful in this role, you'll need proven experience as a Siemens TIA Portal expert, with a strong understanding of automation systems and the ability to work confidently from specification through to implementation. You should be comfortable working to defined standards and compliance requirements, with good estimating and validation skills. Experience within Defence, MOD or other regulated industrial environments would be a strong advantage. You'll need to be eligible to work on UK Defence projects and hold the required security clearance (SC).

Why Apply

This is a genuine opportunity to deliver hands‑on PLC software work on a fascinating, high‑integrity project, for a well‑established business with a strong reputation in precision sensing technology. You'll be working in a fully office‑based, close‑knit team environment, with real ownership over the software delivery phase of the project.

Ganymede is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation