At a Glance
- Tasks: Design and develop innovative ServiceNow solutions to enhance business efficiency.
- Company: Join Castle Water, a fast-growing leader in the utilities sector.
- Benefits: Earn £65,000 – £70,000, plus pension, life insurance, and a cycle-to-work scheme.
- Other info: Be part of a company with over 20,000 5-star Trustpilot reviews.
- Why this job: Make a real impact in a supportive, dynamic environment with a focus on fairness.
- Qualifications: 2+ years in ServiceNow development and relevant certifications required.
The predicted salary is between 65000 - 70000 £ per year.
Service Now Senior Developer is responsible for designing, developing, and implementing solutions within the Service Now platform to address business needs and improve workflow efficiency.
You will collaborate with cross-functional teams to gather requirements and translate them into technical solutions by customising and configuring Service Now applications, modules, and workflows.
Service Now Developers also integrate Service Now with other systems and applications, ensuring the platform’s stability, security, and scalability.
Key responsibilities include development, testing, debugging, troubleshooting, and ongoing support and maintenance of Service Now applications and integrations.
Please note that “Castle Water” Service Now version is not an Out of the Box but a heavily customised version.
- Competitive salary: £65,000 – £70,000 per year
- Company pension, life insurance and sick pay
- Cycle-to-work scheme and on-site parking
- Monday to Friday schedule, so your weekends are all yours
- What you\'ll be doing
- Design, develop, and implement Service Now solutions to meet business requirements.
- Customise and configure Service Now applications, modules, and workflows.
- Develop and maintain Service Now integrations with other systems and applications.
- Collaborate with cross-functional teams to gather requirements and translate them into technical solutions.
- Perform testing, debugging, and troubleshooting of Service Now configurations and customisations.
- Ensure the Service Now platform’s stability, security, and scalability.
- Provide first and second line of support and maintenance for Service Now applications and integrations.
- Participate and present in meetings with Key Company Stakeholders.
- Keep abreast of Service Now platform updates, new features, and best practices.
- What you\'ll bring to the role
- At least 2 years of practical and proven experience with the following Service Now modules: CSM, FSM, SPM
- At least 1 year of proven experience with Service Now ITSM module
- Experience with Service Now integrations using web services (REST, SOAP), MID Servers, and other integration methods.
- Certified Application Developer (minimum 2 years’ experience)
- Certified Service Now Administrator
- Bachelor’s degree in Computer Science, Information Technology, or related field.
Not mandatory but beneficial
Not mandatory but beneficial
- a. Knowledge of database concepts and SQL.
Castle Water is redefining the utilities sector as one of the fastest-growing and most successful companies in the UK.
Guided by our core values of fairness, transparency, tenacity and being supportive, we deliver outstanding service to a diverse range of customers, including some of the UK’s largest companies and public sector organisations.
We believe in putting people first.
Whether it’s creating positive interactions with our customers or fostering a supportive workplace culture, our commitment to fairness and transparency ensures we build lasting relationships with our customers.
With over 20,000 5-star Trustpilot reviews, our reputation is built on trust and excellence.
We tackle every challenge with tenacity and a dedication to doing what’s fair and right.
Our head office in Blairgowrie, Perthshire, is located within easy reach of Perth and Dundee.
As a company embedded in the local community, we actively participate in events that reflect our supportive values.
We also have offices in Brentford, London, and Ayr, offering plenty of opportunities to join our growing team.
If you’re looking for company that’s dynamic, forward-thinking and values-driven, Castle Water is the place for you.
It’s been an incredibly rewarding experience
We’re committed to making the process as smooth and accessible as possible.
If you need any additional support or reasonable adjustments, please let us know.
You can reach us by calling 01250 718700 or emailing careers@castlewater. co. uk.
- 2026
- Castle Water Careers. All rights reserved.
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Senior ServiceNow Developer employer: Castle Water
Castle Water is an exceptional employer that fosters a dynamic work culture focused on innovation and collaboration within the water sector. Employees enjoy a hybrid working schedule, comprehensive benefits including pension and life insurance, and ample opportunities for professional growth, making it a rewarding place to build a meaningful career.
StudySmarter Expert Advice🤫
We think this is how you could land Senior ServiceNow Developer
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Castle Water or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Castle Water.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Castle Water.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Castle Water that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior ServiceNow Developer
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Castle Water.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Castle Water and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Castle Water
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Castle Water uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
