Lead C# Engineer - Build Scalable Insurance Solutions

Willis Towers Watson; United Kingdom; Hybrid; GBP 75,000 - 110,000; Full time

Benefits offered by this job

25 days annual leave

Private healthcare

Life insurance

Income protection

Health assessments

Pension (matched 10%)

Hybrid working

Employee assistance programme

Volunteer day

EV car scheme

Share scheme

Cycle-to-work

Dental cover

Optical cover

Critical illness protection

Job summary

Willis Towers Watson is seeking a Lead Software Engineer to join a skilled development team and deliver market-leading insurance pricing solutions. You will work with the Product Owner to refine the backlog, design software meeting requirements, and drive high-quality code across the full SDLC.

The role emphasizes maintainability, performance, and scalable architectures, with mentoring responsibilities and collaboration with test engineers to ensure robust test coverage.

Qualifications

• Proven experience with C# .NET in commercial/production environments.

Responsibilities

• Define, refine and deliver the product backlog with the Product Owner.
• Design and document software solutions meeting functional and non-functional requirements.
• Implement and refactor code with emphasis on maintainability and performance.
• Implement unit tests and test frameworks; develop automated test cases.
• Review and debug code; identify defects and performance bottlenecks.
• Coordinate with test engineers to ensure coverage; perform manual tests if needed.
• Participate in sprint planning, daily stand-ups and retrospectives; improve team velocity.
• Mentor junior team members and take a lead role in activities.

Skills

C# .NET

Full SDLC

OO design

SOLID principles

Agile & XP

Azure DevOps

Git

WPF/WinForms

Unit testing

Test automation

CI/CD

Design patterns

AI tools familiarity

Cloud technologies

Education

Degree in Computer Science, Engineering, Mathematics or relevant discipline

Tools

MS Test

IDE tools

Job description

Willis Towers Watson is seeking a Lead Software Engineer to join a skilled development team and deliver market-leading insurance pricing solutions. You will work with the Product Owner to refine the backlog, design software meeting requirements, and drive high-quality code across the full SDLC.

The role emphasizes maintainability, performance, and scalable architectures, with mentoring responsibilities and collaboration with test engineers to ensure robust test coverage.