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- Tasks: Design and develop PLC software for innovative ammonia cracking systems.
- Company: Join a growing clean-energy engineering business focused on sustainable technology.
- Benefits: Competitive salary, bonus scheme, private healthcare, flexible hours, and 25 days holiday.
- Why this job: Be part of scaling cutting-edge energy technology from prototype to commercial success.
- Qualifications: Proven experience in industrial automation and strong PLC programming skills.
- Other info: Enjoy a high-impact role with real autonomy in a hybrid working environment.
The predicted salary is between 60000 - 75000 £ per year.
A growing clean-energy engineering business is looking for a hands-on Senior PLC Software Engineer to support the development of next-generation ammonia cracking systems. This role will focus on developing and implementing PLC-based control systems as the business continues to transition from prototype into scalable, deployable products. You’ll be working across the full lifecycle from software design through to real-world commissioning playing a key role in ensuring systems operate reliably in live environments. This is a technical expert role, suited to someone who enjoys owning problems, improving development processes, and working closely with physical systems.
Location: Cranleigh, Surrey (Hybrid)
Type: Permanent, Full-time
Salary: £. Competitive + Benefits: Bonus scheme, Private healthcare, Share Options, Pension contribution, 25 days holiday + bank holidays, Flexible hours, Life assurance
What you’ll be doing:
- Designing and developing PLC software for ammonia cracking systems
- Programming PLCs (Siemens S7 / TIA Portal preferred, others considered)
- Working within an existing system architecture, with increasing input over time
- Defining and improving software development processes and standards
- Producing structured, maintainable code (IEC)
- Supporting software verification and validation (including simulation where applicable)
- Integrating PLC systems with wider control architecture (HMI, SCADA, instrumentation)
- Supporting and leading commissioning activities, fault finding and debugging on live systems
- Working closely with multidisciplinary teams across mechanical, electrical and systems engineering
- Supporting data acquisition and system connectivity where required
What we’re looking for:
- Proven experience in industrial automation within Chemical processing or Manufacturing environments
- Strong PLC programming experience (Siemens S7 ideal, others considered)
- Experience across the full lifecycle: design, development, testing and commissioning
- Strong fault finding and on-site debugging capability
- Experience working on complex engineered or process systems
- Ability to bring structure and rigour to software development processes
Desirable:
- Experience with simulation or software verification environments
- Exposure to process systems, energy systems or similar technologies
- Understanding of industrial communication protocols
Why apply:
- Work on cutting-edge hydrogen and ammonia energy technology
- Be part of scaling a novel technology from prototype to commercial deployment
- High-impact, hands-on engineering role
- Flexible hybrid working with real autonomy
- Opportunity to shape how control systems are developed as the business grows
To apply or find out more, contact Lewis at
Senior PLC Software Engineer employer: Cranleigh Scientific
Contact Detail:
Cranleigh Scientific Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior PLC Software Engineer
✨Tip Number 1
Network like a pro! Reach out to your connections in the clean energy sector and let them know you're on the hunt for a Senior PLC Software Engineer role. You never know who might have the inside scoop on openings or can put in a good word for you.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio of projects or examples of your PLC programming work, make sure to have them ready to share. This is your chance to demonstrate your hands-on experience and technical expertise in real-world scenarios.
✨Tip Number 3
Prepare for interviews by brushing up on common technical questions related to PLC systems and ammonia cracking technology. We recommend practising with a friend or even recording yourself to refine your answers and boost your confidence.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team and contributing to exciting projects in the clean energy space.
We think you need these skills to ace Senior PLC Software Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Senior PLC Software Engineer role. Highlight your experience with PLC programming, especially if you've worked with Siemens S7 or similar systems. We want to see how your skills align with our needs!
Showcase Your Projects: Include specific projects where you've designed and developed PLC software. We love seeing real-world examples of your work, especially those that demonstrate your problem-solving skills and ability to work with complex systems.
Craft a Compelling Cover Letter: Your cover letter should tell us why you're passionate about clean energy and how you can contribute to our mission. Be sure to mention your experience in industrial automation and any relevant technologies you've worked with.
Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s the easiest way for us to keep track of your application and ensure it reaches the right people!
How to prepare for a job interview at Cranleigh Scientific
✨Know Your PLCs Inside Out
Make sure you brush up on your PLC programming skills, especially with Siemens S7 and TIA Portal. Be ready to discuss specific projects where you've designed and developed PLC software, as well as any challenges you faced and how you overcame them.
✨Showcase Your Problem-Solving Skills
This role is all about owning problems and improving processes. Prepare examples of how you've tackled complex issues in past projects, particularly in industrial automation or chemical processing. Highlight your fault-finding and debugging experiences to demonstrate your hands-on expertise.
✨Understand the Full Lifecycle
Familiarise yourself with the entire software development lifecycle, from design to commissioning. Be ready to discuss how you've contributed at each stage, and think about how you can bring structure and rigour to their processes. This will show that you're not just a coder but a holistic engineer.
✨Connect with Multidisciplinary Teams
Since you'll be working closely with mechanical, electrical, and systems engineering teams, prepare to talk about your collaborative experiences. Share how you've integrated PLC systems with wider control architectures and how you’ve communicated effectively across disciplines.