Oscar
Senior Software Engineer
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Senior.NET Software Engineer (Agentic AI / .NET)
Location: London
Salary: £70,000 - £80,000 DOE
Industry: Insurance
The Opportunity
I'm currently working with an established UK insurance broker that has been at the forefront of its market for over 17 years. Following recent investment to support expansion into new insurance markets, they're looking to hire a Senior.NET Software Engineer to play a key role in shaping the future of their engineering function.
This is far more than a traditional senior developer position. As one of the company's senior engineers, you'll help drive the adoption of test-driven development (TDD) across the engineering team while leading the implementation of an innovative agentic AI development workflow. The vision is to combine robust testing, clear engineering standards and AI-powered coding agents to improve software quality, accelerate delivery and modernise the development lifecycle.
Working closely with teams across both the UK and India, you'll remain hands-on with development while influencing engineering best practices, mentoring colleagues and helping build the technical foundations that will support the company's continued growth.
This is an excellent opportunity for someone who is passionate about software craftsmanship, modern engineering practices, AI-assisted development and building high-quality, scalable applications within a collaborative environment.
Key Responsibilities
- Drive the adoption of test-driven development (TDD) and promote best practices for unit and integration testing across the engineering team.
- Lead the implementation of an agentic AI development workflow, integrating AI coding agents into existing development and CI/CD processes.
- Design, develop and maintain scalable .NET applications, APIs and background services.
- Analyse existing applications to identify technical improvements, reduce risk and enhance maintainability.
- Collaborate with technical and business stakeholders to translate requirements into robust technical solutions.
- Develop and deploy cloud-based solutions within AWS, following best practices for security, scalability and reliability.
- Write clean, maintainable and well-documented code with comprehensive automated test coverage.
- Maintain and improve monitoring, alerting and production support capabilities.
- Mentor developers and champion engineering excellence across the wider development team.
- Contribute to the ongoing evolution of software architecture, development standards and delivery processes.
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Essential Skills & Experience
- Strong commercial experience developing applications using C# and.NET.
- Experience building Web APIs, background services and enterprise applications.
- Excellent understanding of Test-Driven Development (TDD) with strong unit and integration testing experience using frameworks such as xUnit.
- Strong SQL experience, including SQL Server (T-SQL) and PostgreSQL.
- Experience working with AWS cloud services including EC2, RDS, Lambda and S3.
- Knowledge of CI/CD pipelines and deployment tools such as TeamCity, Octopus Deploy, or similar.
- Experience using GitHub, including pull requests, branching strategies and code reviews.
- Solid understanding of software engineering principles including SOLID, Clean Architecture and layered application design.
- Hands-on experience working with AI coding agents and AI-assisted software development workflows.
- Strong communication skills with the ability to mentor colleagues and influence engineering best practices.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Desirable Skills
- Experience implementing agentic AI development workflows.
- Knowledge of Docker, ECS or Kubernetes.
- Experience with microservices and event-driven architectures.
- Familiarity with monitoring and observability tools such as CloudWatch, ELK or Grafana.
- Experience working within Agile development environments.
- Previous experience mentoring developers and driving engineering improvements.
Package & Benefits
- Competitive salary (£70,000 - £80,000 DOE)
- Office based in South London
- Opportunity to shape engineering standards and technical direction within a growing business.
- Work on innovative AI-assisted software development initiatives.
- Significant influence over the company's engineering practices and future technology roadmap.
- Collaborative environment working alongside experienced teams in both the UK and India.
- Excellent opportunity for long-term career progression within a well-established business entering an exciting new phase of growth.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills
Location