
Client Server
Lead Software Engineer C# .Net
Job Description
Salary: £100,000 - 100,000 per year
Requirements:- Expertise in C# .Net Core backend software development
- Experience working on large, scalable systems with complexity
- Strong technical leadership experience, taking ownership of features
- Collaborative and pragmatic mindset, able to influence senior engineers
- Advocate for clean, reusable, and maintainable code
- Knowledge of modern Microsoft software engineering best practices
- Understanding of event-driven architecture
- Thorough knowledge of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms
- Familiarity with CI/CD and Infrastructure as Code (IaC)
- Appreciation of Azure, SaaS, PaaS, microservices
- Degree educated in a relevant STEM discipline, e.g., Computer Science, with a good grasp of mathematics
- Manage three Agile teams comprising around ten experienced software engineers
- Architect, design, and develop new features and enhancements for a desktop insurance platform
- Ensure high levels of security, reliability, maintainability, usability, and performance
- Collaborate with the Product Owner and other development teams on design and technical choices
- Provide technical ownership in an Agile environment that encourages close collaboration and continual improvement
- Facilitate team meet-ups and stakeholder meetings in our Reigate office twice a week
- Architect
- Azure
- Backend
- C#
- CI/CD
- OOP
- PaaS
- Product Owner
- Security
- microservices
- ASP.NET
- Cloud
More:
We are a global Fintech offering a dynamic and challenging work environment for a Lead Software Engineer. You will enjoy a flexible work from home hybrid model, joining colleagues in the Reigate office twice a week. We provide a competitive salary of up to £100k plus a 20% bonus, enhanced parental leave, 25 days holiday (plus the option to buy additional days and your birthday off), pension contributions up to 10%, health care, life assurance, and various training and career development opportunities. Our workplace values diversity, and we are committed to ensuring an inclusive environment for all.
last updated 32 week of 2026
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About Client Server

Client Server
Sidlow
IT
Skills & Technologies
Inferred from job description
Salary Insight
£100,000
This role
£85,000
UK median
This salary is 18% above the UK median for Lead roles (£85,000/yr).
Based on 2024–2025 UK technology sector benchmarks