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- Tasks: Lead the migration to modern tech and drive AI adoption in development.
- Company: Join a forward-thinking software business undergoing an exciting technology transformation.
- Benefits: Enjoy hybrid working, 25 days holiday, private medical cover, and more perks.
- Why this job: Be a pioneer in AI-driven development and make a real impact in a progressive environment.
- Qualifications: 5+ years of .NET experience with a focus on modernisation and AI tools.
- Other info: Mentor fellow developers and collaborate on innovative projects.
The predicted salary is between 72000 - 108000 £ per year.
Job Description
Avanti Recruitment is currently partnered with a forward-thinking software business that is in the middle of an exciting technology transformation. They are seeking a Senior .NET Developer to take a leading role in modernising their legacy systems and driving AI adoption across the company.
This is a fantastic opportunity for someone passionate about technology evolution, AI tooling, and delivering clean, modern code. You’ll help replace a VB.NET system with a modern stack (C#, .NET Core, APIs, Cloud) and play a key part in moving the front end towards React.
Beyond the tech upgrade, you’ll become the go-to AI champion within the organisation – helping the team leverage tools like GitHub Copilot and ChatGPT to improve productivity, reduce repetitive work, and introduce smarter development practices. In the long term, you’ll help shape how AI integrates into their internal workflows and potentially their core applications.
What You’ll Be Doing:
- Leading the migration from VB.NET to modern .NET Core, C#, and cloud-based solutions
- Driving the adoption of AI tools across the development team to improve code quality and efficiency
- Helping steer the move to a React front end (already 50% there!)
- Mentoring and supporting other developers while ensuring best practices
- Collaborating with IT and product teams to redesign and modernise core business systems
- Participating in architecture discussions, code reviews, and deployment strategy
- Writing maintainable, well-documented code and implementing scalable solutions
What We’re Looking For:
- 5+ years of .NET development experience, with proven modernisation/migration projects
- Experience moving from legacy systems (VB.NET) to modern stacks
- Strong knowledge of C#, .NET Core, SQL Server, REST APIs, and cloud environments
- Hands-on experience using AI developer tools like GitHub Copilot or ChatGPT
- Passion for clean code, architecture, and technical leadership
- Strong communication skills and a collaborative mindset
Why Join?
- £80,000 – £90,000 base salary annual bonus
- Hybrid working – Brighton or High Holborn (2–3 days per week)
- 25 days holiday bank holidays 2 extra days off
- 5% matched pension
- Private medical cover
- £500 annual allowance for company products
- Bike loans & other perks
This role is perfect for a developer who thrives on modernising systems, wants to become a pioneer in AI-driven development, and enjoys working in a progressive environment where your input drives real change.
Senior Developer employer: Avanti
Contact Detail:
Avanti Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Developer
✨Tip Number 1
Familiarise yourself with the latest technologies mentioned in the job description, such as .NET Core, C#, and React. Being able to discuss these technologies confidently during your interview will show that you're not only qualified but also genuinely interested in the role.
✨Tip Number 2
Highlight any previous experience you have with migrating legacy systems, especially from VB.NET to modern stacks. Prepare specific examples of challenges you faced and how you overcame them, as this will demonstrate your problem-solving skills and technical expertise.
✨Tip Number 3
Showcase your knowledge of AI tools like GitHub Copilot and ChatGPT. If you've used these tools in past projects, be ready to discuss how they improved your workflow or code quality, as this aligns perfectly with the company's goals.
✨Tip Number 4
Emphasise your collaborative mindset and mentoring experience. Since the role involves supporting other developers, sharing examples of how you've successfully led teams or contributed to a positive team environment will make you stand out.
We think you need these skills to ace Senior Developer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with .NET development, particularly any projects involving migration from legacy systems. Emphasise your familiarity with C#, .NET Core, and AI tools like GitHub Copilot or ChatGPT.
Craft a Compelling Cover Letter: In your cover letter, express your passion for technology evolution and AI adoption. Mention specific examples of how you've contributed to modernising systems in the past and how you can bring that expertise to the new role.
Showcase Your Technical Skills: Include a section in your application that lists your technical skills relevant to the job description. Highlight your experience with SQL Server, REST APIs, and cloud environments, as well as your ability to write clean, maintainable code.
Prepare for Technical Questions: Anticipate technical questions related to .NET development and AI tools during the interview process. Be ready to discuss your previous projects and how you approached challenges in modernising legacy systems.
How to prepare for a job interview at Avanti
✨Showcase Your Migration Experience
Be prepared to discuss your previous projects involving the migration from legacy systems to modern stacks. Highlight specific challenges you faced and how you overcame them, particularly with VB.NET to .NET Core transitions.
✨Demonstrate AI Tool Proficiency
Since the role involves driving AI adoption, be ready to share your experiences using AI tools like GitHub Copilot or ChatGPT. Discuss how these tools have improved your coding efficiency and productivity in past projects.
✨Emphasise Clean Code Practices
The company values clean, maintainable code. Prepare examples of how you ensure code quality in your work, including any best practices you follow and how you mentor others in this area.
✨Prepare for Collaborative Scenarios
As collaboration is key in this role, think of examples where you've worked closely with IT and product teams. Be ready to discuss how you approach architecture discussions and code reviews to foster a team-oriented environment.
