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- Tasks: Design and build impactful APIs for AI-driven products and integrations.
- Company: Fast-growing SaaS business with a focus on modern software solutions.
- Benefits: Competitive salary up to £55k, flexible work, and career growth opportunities.
- Why this job: Take ownership of backend engineering and work on real-world applications.
- Qualifications: Experience in C# .NET, SQL, and designing RESTful APIs.
- Other info: Collaborative environment with direct insight into engineering leadership.
The predicted salary is between 43200 - 66000 £ per year.
We are exclusively supporting a fast-growing SaaS business building modern software used by tens of thousands of customers across the UK and beyond. This is not about building thin wrapper APIs around legacy systems. The focus here is on API infrastructure that powers core products, third-party integrations and AI services, including systems that automate real end-to-end workflows, not just surface-level features.
They are now hiring a Software Engineer to take real ownership of how services connect, scale and stay secure, while enabling new AI-driven capabilities across the platform. If you enjoy building production-grade APIs that sit at the heart of real products, not just support tools, this is exactly that kind of role.
What you will be doing:
- You will design and build APIs that enable products, partners and AI services to work together, including:
- Building RESTful APIs using C# .NET, SQL and Azure
- Implementing secure authentication using OAuth, JWT and modern security patterns
- Exposing product capabilities for AI services and third-party integrations
- Producing clear API documentation using OpenAPI / Swagger
- Improving reliability with logging, monitoring and strong error handling
- Supporting CI/CD pipelines for automated testing and deployment
- Working closely with product and AI platform teams on how services are consumed
This is a role with real technical ownership, not just tickets passed down a queue.
What they are looking for:
This suits someone who enjoys backend engineering and wants to step into more platform-level API work. You will likely bring:
- Strong experience building backend services in C# .NET
- Solid SQL and experience with relational databases
- Experience designing RESTful APIs and understanding HTTP fundamentals
- Familiarity with authentication approaches like OAuth or JWT
- Exposure to Azure and cloud deployment
- A testing mindset and care for clean, maintainable code
Nice to have, not essential:
- API gateways or API management platforms
- Event-driven or message-based systems
- Building APIs for external partners or developers
- Supporting AI services via APIs
This is a strong move for someone who wants to grow beyond simple CRUD services and into more platform and integration-led backend engineering.
What's next?
We are managing this hire directly and working closely with the engineering leadership behind it. That means real insight, proper preparation and no CV disappearing into a black hole. If you want to work on APIs that actually matter to real products and real users, apply and we will take you through the details.
Software Engineer in Hull employer: MRJ Recruitment
Contact Detail:
MRJ Recruitment Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Software Engineer in Hull
✨Tip Number 1
Network like a pro! Reach out to current employees or connections in the company you're eyeing. A friendly chat can give you insider info and might just get your application noticed.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio or GitHub with projects that highlight your API building prowess, share it. Real examples of your work can speak volumes more than just words on a CV.
✨Tip Number 3
Prepare for the interview by brushing up on your technical knowledge. Be ready to discuss your experience with C# .NET, SQL, and Azure. We want to see how you think and solve problems, so practice coding challenges too!
✨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, we’re here to support you every step of the way!
We think you need these skills to ace Software Engineer in Hull
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with C# .NET, SQL, and Azure. We want to see how your skills align with building robust APIs and backend services, so don’t hold back on showcasing relevant projects!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Tell us why you’re excited about the role and how your background in backend engineering makes you a perfect fit for our API-driven products. Keep it engaging and personal!
Showcase Your Problem-Solving Skills: In your application, highlight specific challenges you've faced in previous roles and how you tackled them. We love seeing a testing mindset and a knack for clean, maintainable code, so share those experiences!
Apply Through Our Website: We encourage you to apply directly through our website. This way, we can ensure your application gets the attention it deserves, and you won’t have to worry about it getting lost in the shuffle!
How to prepare for a job interview at MRJ Recruitment
✨Know Your Tech Stack
Make sure you’re well-versed in C# .NET, SQL, and Azure. Brush up on your knowledge of RESTful APIs and authentication methods like OAuth and JWT. Being able to discuss these technologies confidently will show that you’re ready to take ownership of the role.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific challenges you've faced in backend engineering and how you overcame them. Think about examples where you improved API reliability or implemented strong error handling. This will demonstrate your practical experience and testing mindset.
✨Understand the Company’s Products
Research the SaaS business and their AI-driven products. Familiarise yourself with how their APIs integrate with core services and third-party applications. Showing genuine interest in their work will help you stand out as a candidate who is not just looking for any job, but this job.
✨Prepare Questions for Them
Have a few thoughtful questions ready about their API infrastructure and how they envision the role evolving. This shows that you’re engaged and thinking critically about how you can contribute to their team and projects.
